Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUSRE40884 E1
Publication typeGrant
Application numberUS 10/826,905
Publication dateSep 1, 2009
Filing dateApr 15, 2004
Priority dateJul 31, 2000
Fee statusPaid
Also published asUS6370811
Publication number10826905, 826905, US RE40884 E1, US RE40884E1, US-E1-RE40884, USRE40884 E1, USRE40884E1
InventorsMichael J. Masterson
Original AssigneeMasterson Michael J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus and method for monitoring termite activity
US RE40884 E1
Abstract
Apparatus, for detecting the presence and eating activity of organisms such as termites that damage structures, includes a body; a wooden bait element controllably exposed to the organisms within a cavity of the body, and having an applied bait substance; a side wall of the body having a vertically spaced plurality of smoothly converging entrance passages for admitting the organisms, a consumable porous barrier covering each of the entrance passages. Spring tension is applied to an upper end of the bait element, an opposite end being anchored to the body. A flag member that is connected to the upper end of the bait element projects from the body when the bait element is weakened to the predetermined amount by the organisms.
Images(3)
Previous page
Next page
Claims(78)
1. Apparatus for signaling a cumulative amount of weakening of a test material resulting from exposure to a hazardous environment in the ground containing material-consuming organisms, comprising:
(a) aan elongated body;
(b) a test element supported relative to the body and comprising the test material;
(c) meansopenings extending through the body, the openings being transverse to a longitudinal axis of the body, the openings being operative for controllably exposing the test element to the hazardous environment containing the material-consuming organisms and for providing passage for the organisms through the body to the test material;
(d) means for applying a load force to the test element, the load force being effective for displacing a portion of the test element when there is a predetermined amount of weakening of the test element caused by consumption thereof by the organisms;
(e) a flag member movably supported relative to the body and coupled to the test element for movement in projecting relation to the body when the test element is weakened to the predetermined amount, with at least a portion of the flag member being movable from a first position enclosed within the body to a second position upward and out of the body beyond the hazardous environment.
2. The apparatus of claim 1, wherein the means for controllably exposing comprises the body having a cavity for enclosing the test element, a side wall of the body having an opening therein for communicating with the hazardous environment .
3. Apparatus for detecting the presence and eating activity or organisms that damage structures by consuming portions thereof, the apparatus comprising:
(a) aan elongated body;
(b) a bait element supported relative to the body and comprising a consumable structural material;
(c) meansopenings extending through the body, the openings being transverse to a longitudinal axis of the body, the openings being operative for controllably exposing the bait element to the organisms and for providing entrance passages for the organisms through the body to the bait element;
(d) means for applying a load force to the bait element, the load force being effective for displacing a portion of the bait element when there is a predetermined amount of weakening of the bait element caused by consumption thereof by the organisms;
(e) a flag member movably supported relative to the body and coupled to the bait element for movement in projecting relation to the body when the bait element is weakened to the predetermined amount by the organisms, with at least a portion of the flag member being movable from a first position enclosed within the body to a second position upward and out of the body beyond the hazardous environment.
4. The apparatus of claim 3, wherein the exposing means comprises the body havinghas a cavity for enclosing the bait element, wherein the openings are in a side wall of the body having an entrance passage formed therein for admitting the organisms .
5. The apparatus of claim 4, wherein the exposing means further comprises a barrier member covering the entrance passagepassages, the barrier member being formed of a sheet of consumable porous material.
6. The apparatus of claim 5, wherein the sheet of consumable porous material is perforated for enhancing communication with the entrance passagepassages.
7. The apparatus of claim 5, wherein the consumable material of the barrier member is selected from the group consisting of balsa wood, pine, and cardboard.
8. The apparatus of claim 5, wherein the body comprises an outer portion and a telescopically separable core portion, the bait element and the flag member being supported within the core portion, the sheet of consumable porous material being connected to the outer portion.
9. The apparatus of claim 4, wherein the entrance passagepassages extends between a first opening in an outwardly facing surface ofextend through the side wall and a second opening in an inwardly facing surface of the side wall, the first opening having a first area, the second opening having a second area being less than the first area , the entrance passagepassages smoothly tapering between the first area and the second areafrom a first larger diameter distal to the bait element to a smaller diameter proximate the bait element.
10. The apparatus of claim 4, wherein the body forms an elongate housing having respective bottom and top extremities, the entrance passagepassages being one of a vertically spaced plurality of entrance passages , and a consumable porous barrier member covering each of the entrance passages.
11. The apparatus of claim 10, wherein the entrance passages and the barrier member are on a first face of the body, the body also including a second face having counterparts of the entrance passages and the barrier member.
12. The apparatus of claim 3, wherein the means for applying a load force comprises: a spring, a first coupling for anchoring one end toof the bait element to the body, a second coupling for connecting an opposite end of the bait element to the spring, and athe spring for applying tensile load to the bait element through the second coupling.
13. The apparatus of claim 12, wherein the flag member is connected to the second coupling.
14. The apparatus of claim 3, wherein the bait element has a bait substance applied thereto.
15. The apparatus of claim 3, wherein the bait element is a wood member.
16. The apparatus of claim 3, wherein the bait element is a cardboard member.
17. A method for monitoring a predetermined cumulative eating activity of organisms on a bait member, comprising:
(a) providing a housing body having an elongate cavity and a side wall passage that extends through the housing body in a direction that is transverse to a longitudinal axis of the housing body;
(b) anchoring one end of the bait member to the body with the bait member extending within the cavity;
(c) connecting a flag member to an opposite end of the bait member with the flag member extending to a position proximate a flag opening of the body;
(d) connecting a spring member between the flag member and the housing body for tensioning the bait member, wherein upon consumption by eating activity of the organisms, the bait member is sufficiently weakened and fractures whereupon the flag member is moved via action of the spring member from a first position enclosed within the housing body to a second position upward and out of the housing body;
(e) placing the housing body in a medium subject to infestation by the organisms with the side wall passage being accessible by the organisms and the flag opening being located outside the medium; and
(f) periodically observing the housing body for display toof the flag member in an extendedthe second position thereof.
18. The method of claim 17, further comprising interposing a consumable porous barrier between the medium and the side wall passage for preventing the medium from contacting the bait member.
19. Apparatus for detecting the presence and eating activity of organisms that damage structures by consuming portions thereof, the apparatus comprising:
(a) a body forming an elongate housing having respective bottom and top extremities;
(b) a bait element supported relative to the body and comprising a wood member having a bait substance applied thereto;
(c) means for controllably exposing the bait element to the organisms, comprising the body having a cavity for enclosing the bait element, a side wall of the body having a vertically spaced plurality of entrance passages formed therein for admitting the organisms, each of the entrance passages extending between a first opening in an outside surface of the side wall and a second opening in an inside surface of the side wall, the first opening having a first area, the second opening having a second area being less than the first area, the passages smoothly tapering between the first area and the second area, a consumable porous barrier member covering each of the entrance passages, the entrance passages and the barrier member being on a first face of the body, the body also including a second face having counterparts of the entrance passages and the barrier member;
(d) means for applying a load force to the bait element, comprising a first coupling for anchoring one end toof the bait element to the body, a second coupling for connecting an opposite end of the bait element, and a spring for applying tensile load to the bait element through the second coupling, the load force being effective for displacing a portion of the bait element when there is a predetermined amount of weakening of the bait element;
(e) a flag member movably supported relative to the body and connected to the second coupling for movement in projecting relation to the body when the bait element is weakened to the predetermined amount by the organisms, with at least a portion of the flag member being movable from a first position enclosed within the body to a second position upward and out of the body.
20. The apparatus of claim 19, wherein the bait element has a bait substance applied thereto.
21. The apparatus of claim 19, wherein the bait element is a wood member.
22. The apparatus of claim 19, wherein the bait element is a cardboardwood member is selected from the group consisting of balsa wood or pine.
23. A method for monitoring structural weakening of a material, the weakening resulting from exposure to subterranean organisms, the method comprising:
placing a tubular-shaped body, with a longitudinal axis in a vertical orientation, at least partially in soil, the material being entirely disposed within the body;
applying a force to the material, the force being effective to cause a displacement of at least a portion of the material when there is a weakening of the material;
providing a passageway through at least a portion of the body from the soil toward the material, the passageway being transverse to the longitudinal axis of the body, wherein the passageway is enclosed by one or more sidewalls, the passageway having a diameter being dimensioned to permit travel of the subterranean organisms from the soil toward the material and being tapered from a wide diameter end proximate to the soil to a narrow diameter end proximate to the material, whereby the passageway directs the subterranean organisms toward a specific portion of the material where the subterranean organisms can cause a weakening of the material; and
in response to the displacement, signaling the weakening of the material resulting from its exposure to the subterranean organisms, the signal comprising an exterior projection of a signaling member from the body.
24. The method of claim 23, further comprising:
limiting exposure of the material to the soil while permitting exposure of the material to the subterranean organisms.
25. The method of claim 23, wherein the passageway is tapered substantially linearly.
26. The method of claim 23, wherein the signaling member comprises a flag and the signaling step comprises:
ejecting at least a portion of the flag from the body.
27. The method of claim 23, further comprising:
providing an annular-shaped skirt around the body near an end of the body distal from the soil, the skirt covering the ground in an area around the body, whereby the skirt provides a moisture barrier around the body and thereby enhances the attractiveness of the material to the subterranean organisms.
28. The method of claim 23, further comprising:
providing an outer housing around the body, the outer housing having an opening for permitting access of the subterranean organisms to the passageway.
29. The method of claim 23, wherein the body has an elongate shape.
30. A device for signaling the presence of a material-consuming organism, the device comprising:
a body having an outer wall;
a material consumable by the organism, the material being entirely disposed within the body;
an opening through the wall, the opening being transverse to a longitudinal axis of the body, the opening having a diameter dimensioned to permit the organism to fit through the opening;
a passage in the body extending at least partially between the opening and the material, the passage having a sidewall enclosing the passage, the passage dimensioned to permit the organism to travel through the passage to reach the material, wherein the sidewall of the passage is tapered from a wide diameter end distal to the material to a narrow diameter end proximate to the material, whereby the tapered sidewall of the passage directs the organism to a specific portion of the material where the organism can consume the material and thereby cause a structural weakening of the material; and
a spring in tension with the material so as to apply a force to the material, the force being sufficient to cause a displacement of at least a portion of the material when there is a structural weakening of the material, the displacement effectuating an exterior projection of a signaling member from the body indicating the presence of the organism in the device.
31. The device of claim 30, wherein the sidewall is tapered substantially linearly.
32. The device of claim 30, further comprising:
a barrier disposed between the outer wall and the material, the barrier being at least partly effective in excluding soil particles from entering the passage but not excluding the organism from entering the passage.
33. The device of claim 32, wherein the barrier comprises perforations.
34. The device of claim 33, wherein the material consumable by the organism emits an odor attractive to the organism, the perforations enhancing communication of the odor out of the device.
35. The device of claim 32, wherein the barrier is porous.
36. The device of claim 30, wherein the device is positionable in soil where the material-consuming organism may be present and the signaling member comprises a flag, wherein the flag is coupled to the material for movement in projecting relation to the body in a direction away from the soil in response to the displacement.
37. The device of 30, further comprising:
an annulus-shaped skirt disposed around the body near a top of the body for placement above ground.
38. A device for signaling the presence of a material-consuming organism, the device comprising:
a body housing having an outer wall defining an inner cavity;
a body core, separable from the body housing, disposed within the inner cavity in a removably telescopic orientation;
a material consumable by the organism, the material being disposed within the body core;
an opening through the outer wall of the body housing, the opening dimensioned so that the organism can fit through the opening and reach the material, whereby the organism can consume the material and thereby cause a structural weakening of the material; and
a spring in tension with the material so as to apply a force to the material, the force being sufficient to cause a displacement of at least a portion of the material upon structural weakening of the material, the displacement effectuating a signaling member moving from a first position enclosed within the body to a second position upward and out of the body for indicating the presence of the organism in the device.
39. The device of claim 38, further comprising:
a barrier disposed outside the body core, the barrier being substantially impervious to soil but not impervious to the organism.
40. The device of claim 39, wherein the barrier comprises perforations.
41. The device of claim 40 wherein the material consumable by the organism emits an odor attractive to the organism, the perforations enhancing communication of the odor out of the device.
42. The device of claim 39, wherein the barrier is porous.
43. The device of claim 39, wherein the barrier is separable from the body housing and the body core and is removably insertable therebetween.
44. The device of claim 39, wherein the barrier is consumable by the organism.
45. The device of claim 38, further comprising:
a passage formed on the body core and extending at least partially between the opening and the material consumable by the organism when the body core is engaged within the body housing, the passage having a sidewall, the passage dimensioned to permit the organism to travel through the passage toward the material.
46. The device of claim 45, wherein the sidewall of the passage is tapered from a wide end distal to the material consumable by the organism to a narrow end proximate to the material consumable by the organism, whereby the tapered sidewall of the passage directs the organism to a specific location on the material for consumption.
47. The device of claim 46, wherein the sidewall is tapered substantially linearly.
48. The device of claim 38, wherein the signaling member comprises a flag coupled to the material for movement in projecting relation to the body core in response to the displacement.
49. The device of claim 38, further comprising:
an annulus-shaped skirt disposed around the body housing near a top end of the body housing.
50. A device for signaling the presence of a material-consuming organism, the device comprising:
a body housing having an outer wall defining an inner cavity, the outer wall comprising an opening dimensioned so that the organism can fit through the opening;
a body core within the body housing, the body core substantially filling the cavity, the body core comprising a radial passage, a front face of the radial passage overlapping the opening, the passage dimensioned so that the organism can fit through the passage;
a material consumable by the organism within the body core, the material extending most of a length of the body housing, whereby the organism can reach the material by traveling through the opening and the passage, and whereby the organism can consume the material and thereby cause a structural weakening of the material; and
a spring in tension with the material so as to apply a force to the material, the force being sufficient to cause a displacement of at least a portion of the material when there is a structural weakening of the material, the displacement effectuating an indication of the presence of the organism in the device comprised of a flag member moving from a first position enclosed within the body housing to a second position upward and out of the body housing.
51. The device of claim 50, wherein the outer wall is approximately cylindrical in shape.
52. The device of claim 50, wherein the material and the spring are approximately centered about a central vertical axis of the device.
53. The device of claim 50, further comprising:
a barrier disposed outside the body core, the barrier being substantially impervious to soil but not impervious to the organism.
54. The device of claim 53, wherein the barrier comprises perforations.
55. The device of claim 54 wherein the material consumable by the organism emits an odor attractive to the organism, the perforations enhancing communication of the odor out of the device.
56. The device of claim 53, wherein the barrier is porous.
57. The device of claim 53, wherein the barrier is consumable by the organism.
58. The device of claim 50, wherein the passage has a sidewall that is tapered from a wide diameter end distal to the material consumable by the organism to a narrow diameter end proximate to the material consumable by the organism, for directing the organism to a specific location on the material for consumption.
59. The device of claim 58, wherein the sidewall is tapered substantially linearly.
60. The device of claim 50, wherein the flag member is coupled to the material for movement in projecting relation to the body core in response to the displacement with at least a portion of the flag member extending externally from the body housing and being viewable from a distance indicating presence of material-consuming organisms in the device.
61. The device of claim 60, further comprising:
an annulus-shaped skirt disposed around the body housing near a top end of the body housing.
62. A device for signaling the presence of material-weakening organisms, the device comprising:
a body having an exterior wall;
a plurality of transverse outer openings in the exterior wall of the body, dimensioned to permit the organisms to fit through;
a cavity within the body, the cavity having an interior wall, the cavity being substantially smaller than the body;
a plurality of transverse inner openings in the interior wall of the cavity, dimensioned to permit the organisms to fit through;
a material disposed within the cavity; wherein the organisms, when in contact with the material, cause a structural weakening of the material;
a spring in tension with the material so as to apply a force to the material, the force being sufficient to cause a displacement of at least a portion of the material when there is a structural weakening of the material, the displacement effectuating an exterior projection of a signaling member moving from a first position enclosed within the body to a second position upward and out of the body for indicating the presence of the organisms in the device.
63. The device of claim 62, wherein the inner openings in the interior wall of the cavity are smaller than the outer openings in the exterior wall of the body.
64. The device of claim 62, further comprising:
a barrier disposed outside of the openings in the interior wall of the cavity.
65. The device of claim 64, wherein the barrier comprises perforations.
66. The device of claim 65, wherein the material disposed within the cavity emits an odor attractive to the organisms, and the perforations enhance communication of the odor out of the device.
67. The device of claim 62, wherein the signaling member comprises a flag coupled to the spring, the flag moving in projecting relation to the body in response to the displacement.
68. The device of claim 62, further comprising:
an annulus-shaped skirt disposed around the body near an end of the body.
69. A device for signaling the presence of subterranean material-weakening organisms in soil, the device comprising:
a body, having an exterior wall, for at least partial submersion in soil leading with a bottom end of the body, the body having a top end opposite from the bottom end;
a plurality of transverse openings in the exterior wall of the body, dimensioned to permit the organisms to fit through;
a material disposed within the body, wherein the organisms, when in contact with the material, cause a structural weakening of the material;
a cavity within the body, the cavity being substantially smaller than the body, the cavity being near the top end of the body;
a spring disposed within the cavity, the spring being held in tension by the material such that a structural weakening of the material causes an end of the spring to undergo a displacement, the displacement effectuating an exterior projection of a signaling member moving from a first position enclosed within the body to a second position upward and out of the body for indicating the presence of the organisms in the device.
70. The device of claim 69, wherein the body is generally elongate in shape from the top end to the bottom end.
71. The device of claim 69, further comprising:
a second cavity within the body, the second cavity being substantially smaller than the body, the second cavity containing the material, the second cavity having an interior wall, the interior wall having an opening dimensioned to permit the organisms to fit through.
72. The device of claim 69, further comprising:
a barrier disposed outside of the material.
73. The device of claim 72, wherein the barrier comprises perforations.
74. The device of claim 73, wherein the material disposed within the cavity emits an odor attractive to the organisms, and the perforations enhance communication of the odor out of the device.
75. The device of claim 69, wherein the signaling member comprises a flag coupled to the spring, the flag moving in projecting relation to the body in response to the displacement.
76. The device of claim 69, further comprising:
an annulus-shaped skirt disposed around the body near the top end of the body.
77. A device for monitoring structural weakening of a material disposed within a body to be placed at least partially in soil, the weakening resulting from exposure to subterranean organisms, the device comprising:
means for applying a force to the material, the force being effective to cause a displacement of at least a portion of the material when there is a weakening of the material;
a tubular-shaped body housing the material, the material being entirely disposed within the body, the body being placed in the soil and having a passageway disposed through at least a portion of the body from the soil toward the material, the passageway being transverse to a longitudinal axis of the body, wherein the passageway is enclosed by one or more sidewalls, the passageway being dimensioned to permit travel of the subterranean organisms from the soil toward the material and being tapered from a wide diameter end proximate to the soil to a narrow diameter end proximate to the material, whereby the passageway directs the subterranean organisms toward a specific portion of the material where the subterranean organisms can cause a weakening of the material; and
means for signaling the weakening of the material, in response to the displacement, resulting from the material's exposure to the subterranean organisms, the means for signaling comprising a signaling member, with at least a portion of the signaling member being movable from a first position enclosed within the body to a second position out of the body.
78. A device for monitoring structural weakening of a material disposed within a body to be placed at least partially in soil, the weakening resulting from exposure to subterranean organisms, the device comprising:
a spring mechanism that applies a force to the material, the force being effective to cause a displacement of at least a portion of the material when there is a weakening of the material;
a tubular-shaped body housing the material, the material being entirely disposed within the body, the body being placed in the soil and having a passageway disposed through at least a portion of the body from the soil toward the material, the passageway being transverse to a longitudinal axis of the body, wherein the passageway being dimensioned to permit travel of the subterranean organisms from the soil toward the material, the passageway having a larger diameter opening proximate to the soil relative to a narrower diameter opening proximate to the material, whereby the passageway directs the subterranean organisms toward a specific portion of the material where the subterranean organisms can cause a concentrated weakening of the material; and
means for signaling the weakening of the material, in response to the displacement, as a result of the material's exposure to the subterranean organisms.
Description
BACKGROUND

The present invention relates to pest control, and more particularly to monitoring termite activity proximate and especially under building structures.

Termite infestation and damage is a continuing problem in buildings having wood structure. Traditionally, the structures are inspected only infrequently, such as in connection with a sale, at which time considerable damage may have been done, with expensive repairs being required. Termite infestation and damage is generally not readily apparent, and partial dismantling of building structures in order to locate possible infestation has to be weighed against the damage done by such dismantling and the cost of restoration. Even professional inspections are not always effective with respect to inaccessible structure.

Accordingly, various non-invasive devices have been developed for detecting termite activity, such devices being implanted in the ground around and/or under homes or other building structures. For example, U.S. Pat. No. 5,329,726 to Thorne et al. and U.S. Pat. No. 5,901,496 to Woodruff disclose ground-implantable devices for detecting termite activity, the devices having a perforate outer housing for permanent ground implantation, and a removable perforate cartridge having bait therein. The cartridge is removed and visually inspected for detection of termite activity. These devices of the prior art exhibit a number of disadvantages; for example:

    • 1. They are ineffective in that active termite infestations may be ignored because:
      • a. the unit does not get proper inspections;
      • b. the original placement of the unit is difficult to determine;
      • c. an aggressive termite colony was not identified early; and
    • 2. They are difficult to install and monitor, especially when implanted in crawl space under structures.

Thus there is a need for a device that facilitates detection and monitoring of infestation of soil environments of building structures by destructive organisms, that is both effective and easy to use, and that is inexpensive to provide.

SUMMARY

The present invention meets this need by providing a monitoring device having a direct indication of a predetermined amount of cumulative destructive activity of invasive organisms such as termites. In one aspect of the invention, an apparatus for signaling a cumulative amount of weakening of a test material resulting from exposure to a hazardous environment includes a body; a test element supported relative to the body and comprising the test material; means for controllably exposing the test element to the hazardous environment; means for applying a load force to the test element, the load force being effective for displacing a portion of the test element when there is a predetermined amount of weakening of the test element; a flag member movably supported relative to the body and coupled to the test element for movement in projecting relation to the body when the test element is weakened to the predetermined amount. The means for controllably exposing can include the body having a cavity for enclosing the test element, a side wall of the body having an opening therein for communicating with the hazardous environment. As used herein “hazardous environment” means an environment that may be deleterious to the strength of a structural material.

In another aspect of the invention, an apparatus for detecting the presence and eating activity of organisms that damage structures by consuming portions thereof includes the body; a bait element supported relative to the body and comprising a consumable structural material; means for controllably exposing the bait element to the organisms; means for applying a load force to the bait element, the load force being effective for displacing a portion of the bait element when there is a predetermined amount of weakening of the bait element; a flag member movably supported relative to the body and coupled to the bait element for movement in projecting relation to the body when the bait element is weakened to the predetermined amount by the organisms.

The exposing means can include the body having a cavity for enclosing the bait element, a side wall of the body having an entrance passage formed therein for admitting the organisms. Preferably the exposing means further includes a barrier member covering the entrance passage and being formed of a sheet of consumable porous material for excluding foreign material from the entrance passage. The consumable material of the barrier member is preferably perforated for enhanced communication of bait odor out of and of the organisms into the entrance passage. The barrier member can also act as an attractant, being selected, for example, from the group consisting of balsa wood, pine, and cardboard. Preferably the body has an outer portion to which the sheet of consumable porous material is connected and a telescopically separable core portion that supports the bait element and the flag member for facilitating removal and inspection of the bait element without disturbing the outer body and the sheet of porous material.

The entrance passage can extend between a first opening in an outside surface of the side wall and a second opening in an inside surface of the side wall, the first opening having a first area, the second opening having a second area being preferably less than the first area, the passage smoothly tapering between the first area and the second area for concentrating eating activity at a specific location along the bait element. The body can form an elongate housing having respective bottom and top extremities, the entrance passage being preferably one of a vertically spaced plurality of entrance passages for exposure to organisms at plural depths within the hazardous environment, a consumable porous barrier member covering each of the entrance passages. The entrance passages and the barrier member can be on a first fade of the body, the body preferably including a second face having counterparts of the entrance passages and the barrier member for exposing the bait element to organisms approaching from different directions.

The means for applying a load force can include a first coupling for anchoring one end to the bait element to the body, a second coupling for connecting an opposite end of the bait element, and a spring for applying tensile load to the bait element through the second coupling. The flag member can be connected to the second coupling. The bait element can be a word member having a bait substance applied thereto.

In a further aspect of the invention, a method for monitoring a predetermined cumulative eating activity of organisms on a bait member includes:

    • (a) providing a housing body having an elongate cavity and a side wall passage;
    • (b) anchoring one end of the bait member to the body with the bait member extending within the cavity;
    • (c) connecting a flag member to an opposite end of the bait member with the flag member extending to proximate a flag opening of the body;
    • (d) connecting a spring member between the flag member and the housing body for tensioning the bait member;
    • (e) placing the housing body in a medium subject to infestation by the organisms with the side wall passage being accessible by the organisms and the flag opening being located outside the medium; and
    • (f) periodically observing the housing body for display to the flag member in an extended position thereof.

The method can further include interposing a consumable porous barrier between the medium and the side wall passage for preventing the medium from contacting the bait member.

DRAWING

These and other features, aspects, and advantages of the present invention will become better understood with reference to the following description, appended claims, and accompanying drawings, where:

FIG. 1 is a side view of a termite monitoring apparatus according to the present invention;

FIG. 2 is a top view of the apparatus of FIG. 1;

FIG. 3 is a lateral sectional view on line 33 of FIG. 1; and

FIG. 4 is a plan sectional view on line 44 of FIG. 1.

DESCRIPTION

The present invention is directed to a device and method for detecting and monitoring the activity of invasive destructive organisms such as termites. With reference to FIGS. 1-4 of the drawings, a monitoring apparatus 10 includes a generally cylindrical housing body 12 having an elongate main cavity 14 for receiving a test element 16, a plurality of entrance passages 18 being formed in one or more side walls 20 of the body 12 for admitting the organisms (not shown). The test element 16 is typically in the form of a cardboard strip or rod, wooden rod or dowel, which can be impregnated or coated with a suitable attractant such as phermone, the element 16 thus also being sometimes referred to herein as a bait element. A stop member 22 is attached at a bottom extremity of the bait element 16 for anchoring engagement proximate a lower extremity of the main cavity 14. Also, a flag member 24 is connected to a top extremity of the bait element 16 by a flag fitting 26, the flag member 24 being axially movable from a first position as shown by solid lines to a second position as shown by broken lines in FIG. 3. The flag member 24 extends within a flag cavity 28 that forms an enlargement of the main cavity 14, the cavity 28 extending to the top of the housing body 12. An upper portion of the flag cavity 28 is enlarged, forming a spring cavity 30 for accommodating a stop ring 32 that projects laterally from the flag member, and a compression spring 34 that is interposed between the stop ring and a bottom extremity of the spring cavity 30 for biasing the flag member toward the second position thereof, the stop ring 32 abutting a main cap 54 (further described below) that forms an upper extremity of the spring cavity 30 in the second position of the flag member 24. Thus, when a predetermined amount of weakening of the test element 16 occurs, the element fractures in tension, whereupon the flag member 24 snaps to the second position thereof in projecting relation to the housing body 12, being viewable from a distance as a direct indication of the corresponding cumulative consumption of the element 16.

The stop member 22 and the flag fitting 26 can be attached to the test element 16 by any suitable means, such as by an adhesive, and/or by a coupling pin (not shown) that projects laterally through the element 16 and opposite walls of the stop member (and the flag fitting). As shown in FIG. 3, the stop member 22 is retained against upward movement by an anchor ledge 36 that projects inwardly within the main cavity 14 of the body 12.

A preferred configuration of the entrance passages 18 has each passage formed with a large outwardly facing first opening 38 and a much smaller second opening 40 into the main cavity 14, the passage 18 being smoothly inwardly tapered from a first area corresponding to the first opening 38 to a second area corresponding to the second opening 40 for focusing invasive activity at a particular location along the test element 16.

A principal feature of the present invention is that each entrance passage 18 is covered by a porous barrier member 42 that is easily consumed by invasive organisms seeking access to the bait element 16 after the apparatus 10 is imbedded in soil that may contain the organisms. Thus the first openings 38 of the entrance passages 18 can be quite large without being blocked by pebbles or clods of the soil. More particularly, it is expected that the invading organisms will not entirely consume the portions of the barrier member 42 that cover the first openings 38, the barrier member being at least partially effective in excluding the soil particles from the entrance passages 18. Further, the soil particles that do get in the passages are likely to fall below the second openings 40 without blocking them. Moreover, the enhanced area of the first openings 38 serves to enable the passage of gaseous attractant matter through the porous barrier member 42 at a rate at least as great as that permitted by the smaller area of the second openings 40. As shown in FIG. 1, each of the first openings 38 can have a rounded rectangular of other non-circular shape for more fully utilizing the area of the side walls 20 of the body 12. Further, the barrier members are preferably perforated as indicated at 43 for enhanced communication of gaseous attractant into the soil, and for facilitating entry of termites or other invasive organisms. As best shown in FIG. 4, the barrier members 42 are retained in respective side walls 20 of the body 12 by pairs of flange portions 44, the barrier members being inserted (or removed for replacement) from the top of the body 12.

A drain opening 46 is provided at the bottom of the main cavity 14 as shown in FIG. 3 for draining moisture that might otherwise accumulate therein, the opening 46 being recessed above a bottom extremity of the housing body 12 for spacing soil therefrom when the apparatus 10 is in use. Moisture released into the soil from the opening 46 creates an environment that is attractive to termites. As shown in FIG. 4, at least a lower portion of the main cavity 12 14 optionally extends laterally as indicated at 1214′ by a sufficient distance from the anchor ledge 36 for allowing the test element having the stop member 22 thereon to be lowered through the flag cavity 28 into the main cavity 14, and moved laterally into engagement with the anchor ledge 36, the anchor ledge 36 being open toward the enlarged cavity portion 1214′.

Preferably the second openings 40 of the entrance passages 18 in respective side walls 20 of the body 12 are at corresponding locations along the test element 16 for further concentrating invasive activity at those locations, thereby further accelerating fracture of the test element 16 to more effectively and repeatably indicate a degree of infestation as the predetermined weakening of the test element 16.

The apparatus 10 also includes a skirt member 48 for facilitating imbedded placement of the housing body 12 vertically oriented and at a desired depth in soil. The skirt member also collects condensation, which typically occurs between the soil and the skirt-member. The skirt member 48 is generally circular, having an outwardly and downwardly extending main portion 49 for directing the condensation away from the housing body 12, and a downwardly projecting flange portion 50 for imparting stiffness to the skirt member, which is also formed with a central opening for passage of an upper portion of the housing body 12. The outwardly directed condensation advantageously creates an enlarged moisture barrier around the housing 12, thereby enhancing the attraction of termite activity to the monitor apparatus 10.

The body 12 is formed with an outwardly projecting skirt lip 52 which rests on the skirt member 48, the skirt member resting on the ground and being retained on the body 12 against the lip 52 by the weight of the body 12 and the other components of the apparatus 10. A main cap 54 covers the top of the body 12 and the barrier members 42 for shedding moisture that might fall on the apparatus 10, the main cap 54 having a central opening 55 for exposing the flag cavity 28, the flag member 24 extending partway through the opening 55 in the first position thereof. The main cap is upwardly convex for enhancing the shedding of moisture, and for smoothly deflecting passing objects such as lawnmowers and the like that may be used in the vicinity of the apparatus 10. The flag member 24 is exposed by extending through the main opening 55 in the second position thereof, upward movement of the flag member being limited by the stop ring 32 contacting the underside of the main cap 55. In the exemplary configuration of the apparatus 10 as shown in the drawings, the housing body 12 is generally triangular in cross-section. Of course, there can be other numbers of the side walls 20, with square and other polygonal cross-sectional shapes being contemplated.

Preferably the housing body 12 is separable, including a core portion 12′ that holds the test element 16 together with the flag member 24 and its associated hardware, the designation 12 pertaining to an outer body portion having the flange portions 44 and the lip 52 formed thereon. As shown in FIGS. 3 and 4, the first openings 38 are formed in the core portion 12′. Also, a bail member 56 is pivotally connected at the top of the core portion 12′ for facilitating removal thereof axially from the top of the body 12 when the main cap 54 is removed, the cap 54 having snap-engagement with a cap lip 58 that is spaced above the skirt lip 52 on the outer body 12. Thus the core portion 12′ can be removed from the main body portion 12 and inspected without disturbing either the body 12 or the barrier members 42 that are retained thereby. As further shown in FIG. 4, the enlarged cavity potion 14′ can extend through a side wall 20′ of the core portion 12′, the side wall 20′ not having the vertically spaced entrance passages 18 formed therein. However, the main body portion 12 is provided with counterparts of the flange portions 44 and the barrier member 42 facing the side wall 20′. In the alternative of the housing body 12 having the core portion 12′ being integrally formed, the enlarged cavity portion 14′ can be open to the outside, being covered by one of the barrier members 42.

Although the present invention has been described in considerable detail with reference to certain preferred versions thereof, other versions are possible. For example, The housing body 12 can have a generally circular cross-section, a single tubular member being substituted for the barrier members 42. Also, the stop member 22 can be configured for snap-engagement with the anchor ledge 36, the body 12 being formed without the enlarged cavity portion 14′. Therefore, the spirit and scope of the appended claims should not necessarily be limited to the description of the preferred versions contained herein.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1982974 *Apr 21, 1933Dec 4, 1934Agnes O SloganProcess and tool for eradicating termites
US1982975 *Nov 16, 1933Dec 4, 1934Agnes O SloganProcess and tool for eradicating termites
US2738754 *Sep 15, 1950Mar 20, 1956Bierer JosephMethod of and apparatus for indicating failure of mine roofs
US2923039 *Feb 21, 1957Feb 2, 1960Imus Robert ETermite poisoning nail
US2970348 *Oct 13, 1958Feb 7, 1961Crauder Everett ETermite poison applicator
US3280629 *Apr 9, 1963Oct 25, 1966Commodity Marketers IncThermally responsive signaling device
US3548780 *Feb 24, 1969Dec 22, 1970George G KliewerTemperature signaling device
US3559615 *Apr 23, 1969Feb 2, 1971Dun Rite Mfg CorpTemperature signaling device
US3564750 *Aug 6, 1968Feb 23, 1971Burgess JohnSubterranean termite detector-exterminator
US3587405 *Nov 29, 1968Jun 28, 1971Ltv Electrosystems IncIndicating and seal activating device and method
US3602186 *Aug 6, 1970Aug 31, 1971Charles H PopenoeOpti-mechanical stress-strain indicator
US3621810 *Nov 5, 1970Nov 23, 1971Caterpillar Tractor CoCorrosion detector
US3624953 *Dec 10, 1969Dec 7, 1971Crosby Frank PTermite control system
US3656452 *Jun 15, 1970Apr 18, 1972Dun Rite Mfg CorpTemperature signaling device
US3693579 *Nov 12, 1964Sep 26, 1972Commodity Marketers IncTemperature indicator
US3759103 *Mar 1, 1971Sep 18, 1973A VolkDisposable cooking thermometer
US3811402 *Dec 26, 1972May 21, 1974Keeley RTemperature responsive gauge
US3908508 *Sep 23, 1974Sep 30, 1975Modulus CorpStrain indicator
US3940875 *Aug 9, 1974Mar 2, 1976Basile Mario JMethod of treating soil for controlling termites and the like
US4058079 *Jun 10, 1976Nov 15, 1977Taylor Michael JMovement indicator
US4082000 *Apr 9, 1976Apr 4, 1978Volk Anthony JDisposable cooking thermometer structure
US4356790 *May 21, 1981Nov 2, 1982Huntington Tool, Inc.Temperature indicator
US4421053 *Dec 18, 1981Dec 20, 1983Volk Anthony JTwo-stage pop up thermometer
US4709654 *Aug 15, 1986Dec 1, 1987Smith Stanley RIndicator for loose lug nuts
US4748931 *Sep 2, 1986Jun 7, 1988Volk Development CompanyUmbrella top timer
US5024832 *Dec 13, 1989Jun 18, 1991Nitto Denko Co. Ltd.Termites trail-following pheromone and a same composition and method of detecting captured termites by using this composition
US5271639 *Jun 29, 1992Dec 21, 1993Takata CorporationMechanical sensor for vehicle seat belt systems
US5285688 *Sep 17, 1992Feb 15, 1994Regents Of The University Of MinnesotaSystem for detecting wood-destroying insect infestations in wood
US5323730 *Feb 19, 1993Jun 28, 1994Minnesota Mining And Manufacturing CompanyThermally responsive indicator with organic retaining means
US5329726 *Sep 8, 1992Jul 19, 1994Thorne Barbara LSystem for termite detection and control
US5487352 *Sep 21, 1994Jan 30, 1996John R. WilliamsTemperature indicator for cooked meats
US5524824 *Oct 6, 1994Jun 11, 1996Frimmer; Elliot M.Sprinkler shut-off valve and indicator
US5537950 *Apr 29, 1994Jul 23, 1996Volk Enterprises, Inc.,Thermally responsive indicator with organic retaining means
US5555672 *Jul 18, 1994Sep 17, 1996Thorne; Barbara L.System for termite detection and control
US5571967 *Jul 6, 1994Nov 5, 1996Sharp Kabushiki KaishaTermite detecting device and a method of detecting termites
US5575105 *Nov 3, 1994Nov 19, 1996Cats, Inc.Termite alarm unit
US5592774 *Feb 10, 1994Jan 14, 1997Nisus Corp.Termite activity remote monitoring and information system
US5603282 *Apr 19, 1996Feb 18, 1997Sts Consultants Ltd.Utility pipe displacement sensor
US5695776 *Mar 12, 1996Dec 9, 1997Fmc CorporationTermite bait apparatus having grooves
US5799606 *Nov 7, 1996Sep 1, 1998Volk Enterprises, Inc.Pop-up temperature indicating device
US5815090 *Oct 31, 1996Sep 29, 1998University Of Florida Research Foundation, Inc.Remote monitoring system for detecting termites
US5832658 *Oct 10, 1996Nov 10, 1998Louisiana Landscape Specialty, Inc.System and apparatus for detecting and monitoring the presence of wood-destroying insects
US5877422 *Jun 28, 1996Mar 2, 1999Cats, Inc.Termite detection apparatus and termite alarm unit employing this termite detection apparatus
US5899018 *Sep 16, 1997May 4, 1999Gordon; Glenn DDevice and method for termite detection and control
US5901496 *Dec 20, 1996May 11, 1999American Cyanamid CompanyDevice for detecting and controlling termite activity
US5921018 *Mar 28, 1997Jul 13, 1999Sumitomo Chemical Company, LimitedDevice and method for luring termites
US5927001 *Feb 3, 1997Jul 27, 1999Fmc CorporationSectional bait station
US5937571 *Jan 21, 1997Aug 17, 1999Fmc CorporationTermite bait station
US5950356 *Jan 24, 1997Sep 14, 1999Nimocks; David R.Termite interception and baiting system and method of use thereof
US5953855 *Jan 26, 1998Sep 21, 1999Edwards; Allen W.Biodegradable pesticide delivery system
US5988102 *Dec 24, 1997Nov 23, 1999Volk Enterprises, Inc.Pop-up temperature indicating device
US6003266 *Jun 7, 1995Dec 21, 1999American Cyanamid CompanyTermiticide bait tube for in ground application
US6016625 *Apr 15, 1998Jan 25, 2000Bishoff; Michael J.Methods and apparatuses for monitoring or controlling pests
US6052066 *Sep 25, 1998Apr 18, 2000University Of Florida Research Foundation, Inc.Remote monitoring system for detecting termites
US6058646 *Apr 16, 1997May 9, 2000Dow Agrosciences LlcMethods and apparatus for pest monitoring or control
US6065241 *Mar 4, 1999May 23, 2000American Cyanamid CompanyTermiticide bait tube for in-ground application
US6071529 *Aug 22, 1997Jun 6, 2000Fmc CorporationTermite bait
US6079151 *May 10, 1999Jun 27, 2000Dow Agrosciences LlcMethods and apparatus for pest monitoring or control
US6100805 *Aug 12, 1999Aug 8, 2000Micron Technology, Inc.Devices for sensing termites and other living organisms, and methods of forming devices for sensing termites
US6150944 *Jul 15, 1999Nov 21, 2000Relative Solutions CorporationTermite detection apparatus
US6158166 *Sep 2, 1998Dec 12, 2000B&G Equipment CompanyModular pest control system
US6164010 *Sep 2, 1998Dec 26, 2000B&G Equipment CompanyPest control system including compartments having areas for receiving pest control materials of differing physical consistencies
US6178834 *Feb 19, 1999Jan 30, 2001Entomobiotics Inc.System and method of detecting, concentrating and suppressing subterranean termites
US6187328 *Feb 1, 1999Feb 13, 2001Fmc CorporationSectional bait station
US6189393 *Nov 16, 1999Feb 20, 2001Entomobiotics Inc.Method and apparatus for detecting subterranean termites
US6195934 *Aug 11, 1999Mar 6, 2001Fmc CorporationTermite bait station
US6205701 *Aug 9, 1999Mar 27, 2001Nimocks, Iii David R.Termite interception and baiting system and method of use thereof
US6219960 *Oct 28, 1998Apr 24, 2001Waterbury Companies, Inc.Insect bait station
US6235301 *Dec 27, 1999May 22, 2001Fmc CorporationTermite bait
US6243014 *Aug 27, 1999Jun 5, 2001Micron Technology, Inc.Electrical apparatuses, termite sensing apparatuses, and methods of forming electrical apparatuses
US6255959 *Nov 3, 1999Jul 3, 2001Micron Technology, Inc.Electrical apparatuses, methods of forming electrical apparatuses, and termite sensing methods
US6266918 *Feb 24, 2000Jul 31, 2001Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical CollegePop-up termite indicator
US6281799 *Aug 12, 1999Aug 28, 2001Micron Technology, Inc.Devices for sensing changes in environments proximate the devices, devices for sensing termites, and methods for sensing termites
US6302054 *Sep 29, 2000Oct 16, 2001Mayer, Iii Robert A.Freezing weather indicator and method
US6304185 *Aug 12, 1999Oct 16, 2001Micron Technology, Inc.Devices for sensing living organisms, devices for sensing termites, methods of forming devices for sensing termites, and methods for sensing termites
US6313748 *Aug 27, 1999Nov 6, 2001Micron Technology, Inc.Electrical apparatuses, termite sensing apparatuses, methods of forming electrical apparatuses, and methods of sensing termites
US6323772 *Jun 7, 2000Nov 27, 2001Micron Technology, Inc.Devices for sensing termites and other living organisms, and methods of forming devices for sensing termites
US6370811 *Jul 31, 2000Apr 16, 2002Michael J. MastersonApparatus and method for monitoring termite activity
US6370812 *Jun 7, 1995Apr 16, 2002DowelancoMethods, systems and baits for detecting and controlling termites
US6373391 *Aug 12, 1999Apr 16, 2002Micron Technology, Inc.Devices for sensing changes in environments proximate the devices, devices for sensing termites, and methods for sensing termites
US6374536 *Jun 27, 2000Apr 23, 2002Lawrence WashburnSubterranean termite monitor and method
US6389741 *Mar 26, 2001May 21, 2002Nimocks, Iii David R.Termite interception and baiting system and method of use thereof
US6392545 *Dec 7, 2000May 21, 2002Micron Technology, Inc.Electrical apparatuses, and methods of forming electrical apparatuses
US6397516 *Jun 6, 1995Jun 4, 2002University Of Florida Research Foundation, Inc.Methods and systems for detecting and controlling subterranean termites
US6404210 *Mar 2, 1999Jun 11, 2002University Of Florida Research Foundation, Inc.Dimensionally stable sensor for monitoring termite activity
US6439069 *Nov 5, 1999Aug 27, 2002Entomobiotics, Inc.Method and apparatus for detecting subterranean termites
US6515591 *Jan 4, 2001Feb 4, 2003Micron Technology, Inc.Termite sensing methods
US6526692 *Jun 15, 2001Mar 4, 2003Clark Pest Control Of Stockton, Inc.Method and apparatus for in-ground subterranean termite detection
US6532838 *Feb 18, 2000Mar 18, 2003Entomobiotics, Inc.Method and apparatus for detecting, measuring, concentrating and suppressing subterranean termites
US6546892 *Jun 7, 2001Apr 15, 2003Walter P. Kelly, Jr.Overheating axle warning device
US6659037 *Sep 12, 2002Dec 9, 2003Tuscarora IncorporatedMethod and apparatus for the evaluation of vacuum insulation panels
US6668669 *Jan 15, 2003Dec 30, 2003Jerry CatesMethod and apparatus for detecting, measuring, concentrating and suppressing subterranean termites
US6724312 *Sep 25, 2000Apr 20, 2004Daniel BarberPest control apparatus and methods
US6772557 *Nov 11, 2002Aug 10, 2004Basf CorporationTermite bait cartridge having channeling features
US6834611 *Feb 21, 2003Dec 28, 2004United Industries CorporationPest infestation monitoring device with pop-up indicator
US6914529 *Jun 18, 2002Jul 5, 2005Dow Agrosciences LlcSensing devices, systems, and methods particularly for pest control
US7204199 *Mar 23, 2004Apr 17, 2007Volk Enterprises, Inc.Thermopolymeric switching mediums and temperature monitoring devices embodying such mediums
US7212112 *Apr 3, 2003May 1, 2007Dow Agrosciences LlcDetection and control of pests
US7212129 *Mar 21, 2002May 1, 2007Dow Agrosciences LlcDevices, systems, and method to control pests
Non-Patent Citations
Reference
1"Quarterra Extended Inspection Interval Station" brochure; Ensystex; no date; 2 pp.
2"Systematic Termite Control(TM)" brochure; FMC Corporation; Jul. 1999; 2 pp.
3"Termatrol Pro" brochure; Sector Diagnostics, LLC; no date; 2 pp.
4Su et al., A System for Eliminating of Subterranean Termite Colonies, http://flrec.ifas.ifl.edu/entomo/Structural_Entomology/Termite97/Termite97.htm, visited Feb. 23, 2005.
5U.S. Appl. Ser. No. 10/407,253 which is a reissue application of Pat. No. 6,2166,918.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7647723 *Oct 24, 2003Jan 19, 2010Basf AktiengesellschaftTermite-monitoring device and associated method
US7874099 *Nov 26, 2008Jan 25, 2011Whitmire Holdings, Inc.Pest control device and method
US7973671 *May 19, 2005Jul 5, 2011Vibrosystm Inc.Shear component breakage detection
US8196342 *Jul 24, 2008Jun 12, 2012Dow Agrosciences, LlcTechniques for maintaining palatability of a bait material in a pest control device
US8291637 *Aug 16, 2010Oct 23, 2012B&G Equipment CompanyRodent trap including presence indicator mechanism
US8322069Jan 26, 2006Dec 4, 2012Basf CorporationPest control device and method
US20090188155 *Jul 24, 2008Jul 30, 2009Tolley Mike PTechniques for maintaining palatability of a bait material in a pest control device
US20110072709 *Aug 16, 2010Mar 31, 2011B&G Equipment CompanyRodent trap including presence indicator mechanism
US20120210629 *May 3, 2012Aug 23, 2012Tolley Mike PTechniques for maintaining palatability of a bait material in a pest control device
US20120233908 *Sep 15, 2011Sep 20, 2012Drake Kenneth CVole feeder system
Classifications
U.S. Classification43/121, 116/283, 43/132.1, 43/131, 340/573.1, 43/124, 116/208
International ClassificationA01M1/02, A01M17/00, A01M1/20, A01M1/10
Cooperative ClassificationA01M1/2011, A01M2200/011, A01M1/026
European ClassificationA01M1/20B1, A01M1/02E
Legal Events
DateCodeEventDescription
Apr 2, 2014SULPSurcharge for late payment
Year of fee payment: 11
Apr 2, 2014FPAYFee payment
Year of fee payment: 12
Nov 22, 2013REMIMaintenance fee reminder mailed