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Publication numberUS3864539 A
Publication typeGrant
Publication dateFeb 4, 1975
Filing dateFeb 19, 1974
Priority dateFeb 19, 1974
Publication numberUS 3864539 A, US 3864539A, US-A-3864539, US3864539 A, US3864539A
InventorsHauser Fred
Original AssigneeHauser Fred
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Day and hour continuously cycling timing controller with adjustable cam actuators
US 3864539 A
Abstract
A day and hour timer activates a controlled device at selected times over a period of days. An hour timer includes either a drum portion of an upstanding cylindrical wall on a base or a plurality of upstanding projections about the periphery of the base and has a plurality of locations on an annular ring on the drum or on the projections corresponding to hours of the day. Adjustable switch actuators are at each location on the hour timer. A day timer includes a disc portion mounted concentrically of the drum portion and has a plurality of locations on the disc portion corresponding to days of the week and adjustable switch actuators at each location on the day timer. Switches are positioned in association with the timers for actuation by the switch actuators. A circuit permits activation of the controlled device only when a switch actuator at one location of the hour timer and a switch actuator at one location of the day timer are both actuating the switches. The switch actuators fit into an opening at each location on the day and hour timers for pivoting about a pivot pin, but means are provided to prevent displacement of the actuators.
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Description  (OCR text may contain errors)

ilnited States Patent. [1 I Hauser DAY AND HOUR CONTINUOUSLY CYCLING TIMING CONTROLLER WITH ADJUSTABLE CAM ACTUATORS [76] Inventor: Fred Hau ser, 1544 Midvale, Los

Angeles, Calif. 90024 [22] Filed: Feb. 19, 1974 [21] Appl. N0.: 443,380

152] [1.8. CI 200/38 DA, 200/35 R, 200/38 R, 200/38 CA, 200/153 L, 307/141.8, 200/38 DB [51] Int. Cl. IlOlh 43/20 [58 Field of Search 74/568 R, 568 T, 569;

[56] References Cited UNITED STATES PATENTS 1,882,495 10/1932 Hipp 200/38 DA 2,085,994 7/1937 Nydegger ZOO/36 X 3,194,086 7/1965 Laschenski... 200/38 CA X 3,267,767 8/1966 Neal 200/153 L UX 3,305,649 2/1967 Hauser..... 200/38 R 3,717,730 2/1973 Utter 200/38 CA Primary Examiner-James R. Scott' Attorney, Agent, or Firm-Miketta, Glenny, Poms & Smith 7 DAV D IRL CONTROLLED DEVICE I Feb. 4, 1975 [57] ABSTRACT A day and hour timer activates a controlled device at selected times over a period of days. An hour timer includes either a drum portion of an upstanding cylindrical wall on a base ora plurality of upstanding projections about the periphery of the base and has a plurality of locations on an annular ring on the drum or v on the projections corresponding to hours of the day. Adjustable switch actuators are at each location on the hour timer. A day timer includes a disc portion mounted concentrically of the drum portion and has a plurality of locations on the disc portion corresponding to days of the week and adjustable switch actuators at each location on the day timer. Switches are positioned in association with the timers for actuation by the switch actuators. A circuit permits activation of the controlled device only when a switch actuator at one location of the hour timer and a switch actuator at one location of the day timer are both actuating the switches. The switch actuators fit into an opening at each location on the day and hour timers for pivoting about a pivot pin, but means are provided to prevent displacement of the actuators.

15 Claims, 12 Drawing Figures SHEEI 10E 3 TIME OF, DAY

W I a W pg 4%; H I z E 6 i 1 U)! PATENTEU FEB 41975 PATENIEU 3,864,539

SHEET 2 [IF 3 30 DAY OF TIME OF wzew DAY mm. DIAL CONTROLLED DEVICE 1 DAY AND HOUR CONTINUOUSLY CYCLING TIMING CONTROLLER WITH ADJUSTABLE CAM ACTUATORS BACKGROUND OF THE INVENTION This invention relates generally to a day and hour timing apparatus for sending an electrical activation impulse to a controlled device at selected times. Typically, the controlled device would be a multiple station control timing device such as described in my copending application Ser. No. 426,810 filed Dec. 20, 1973 which controls the timing of a plurality of different operations. The day and hour timer of the present invention functions to activate the multiple station control timing device at a particular time on a particular day.

This device has applicability in a system for automatically watering a lawn, golf course, or the like, but it could be used with any automatic control device. In an automatic watering system, typically it might be'desirable to water every other dayor on other particular days at a particular time of the day. A fourteen day timer is provided for every other day operation so that during one week the device would operate on Monday, Wednesday, and Friday and in the next week on Sunday. Tuesday, Thursday, and Saturday, or seven out of fourteen days. On those days at the particular chosen time, the timer of the instant invention would activate the controlled device, i.e. the multiple station controller of Ser. No. 426,810, supra, which times the individual watering operations.

It is a primary object of the invention to provide a compact timer which canbe easily used and which one can quickly and easily determine what times are set. The device should be inexpensive to manufacture and should be easily assembled with a minimum of calibration. It is an object that the device be made from ine'xpensive molded plastic parts which requires no machining but the inexpensiveness of the part should not cause the timer to be inaccurate or the wear abnormally fast.

SUMMARY OF THE INVENTION The instant device includes an hour timer and a day timer mounted concentrically for concentric rotation about an axis of rotation. On both timers there are a plurality of switch actuators at locations corresponding to the hour of the day on the hour timer and the day of the week on the day timer. These switch actuators are pivotally mounted on the respective timers in such a manner that in one pivoting position the switch actuators will engage a switch as the switch actuator moves" passed the switch during rotation of the timer, but when the switch actuator is pivoted to a second position, it will miss the switch. The hour timer is rotated at a rate of one revolution in every 24 hours, and indexing means on the hour timer engages the day timer when the hour timer passes its midnight position to index the day timer 1 day.

The hour timer in one exemplary embodiment. is formed as a drum having a base and upstanding cylindrical walls with an annular ring on top of the cylindrical wall. The day timer is essentially a disc with a downwardly extending projection. The base portion, is independent from the downwardly extending'projection so that the hour timer and day timer are free to rotate relative to one another. Openings are provided at each location in the annular ring as well as in the'disc, and shallow slots are molded into the underside of the ring and disc. The switch actuators have small pins which fit into the shallow slots to allow for pivoting movement about these pins. When the top and bottom portion of the disc and the annular ring on top of the cylindrical wall of the drum are assembled, the switch actuators are held against displacement by the respective walls but pivoting is still permitted. The switches which are actuated by the switch actuators are in a circuit such thatthe switch associated with the day timer and the switch associated with the hour timer must both be closed in order for activation of the controlled device to occur.

In a second exemplary embodiment, the hour timer is formed of a base with upstanding projections. The projections are arranged about the periphery of the base, and an annular switch actuator supporter ring is supported on the projections similar to the way the annular ring is supported on the cylinder in the first embodiment. The supported ring has opposed downwardly extending short walls of resilient material forming a groove therebetween. Indentations are molded into theinsides of the walls to grip the pins of switch actuators under urging of the resilient walls. The short walls extend only between each openingat each location. and the space between the adjacent walls allows for pivotingof the switch actuators. A second annular switch actuator supporter ring of smaller diameter than the first-mentioned ring is attached to the disc means,

. and it is of similar structure to the firstmentioned switch actuator supporter ring.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view partially cut away of the day and hour timer apparatus of the present invention.

FIG.'2 is a cross sectional view taken along 'lines IIII in FIG. 1.

FIG. 3 is a cross sectional view illustrating a-detail of the switch actuator associated with the day timer and is taken along line III-III in FIG. I. i

FIG. 4 is a rear view of the instant apparatus showing detail in the rear of the day timer. I

FIG. 5 isa partial rear view, partially cut away of the timer apparatus. f

FIG. 6 is a rear view of the timer apparatus showing the detail in the mounting of the motor and the wiring.

FIG. 7 is a perspective view of the switch actuating means.

FIG. 8 is a side cross sectional view of the hour timer taken along line VIIIVIII of FIG. 1.

FIG. 9 is an electrical schematic of the instant device.

FIG. 10 is a partial front view of the alternative embodiment of the instant invention.

FIG. 11 is a cross sectional view taken along line XI-XI of FIG. 10.

FIG. 12 is a perspective view of the switch actuating means for use with the alternative embodiment.

DETAILED DESCRIPTION OF THE PREFERRED AND ALTERNATEEMBODIMENTS An hour timer having a plurality of locationscorresponding to hours of the day includes adjustable switch actuating means at each location on the hour-timer. in one preferred embodiment, such an hour timer or first timing means includes a timing drum 11. The drum 11 is formed preferably of molded plastic in a onepiece construction including a generally rounded base portion 12 and a cylindrical wall 13 extending from the base portion. Extending about the outer periphery of the base portion 12 is gear 14 which meshes with gear 72 driven by the motor 71 of the motor means 70. The driving of gear 14 by the motor means 70 causes rotation of the hour timer 10 in a direction shown in the arrow in FIG. 1. This rotation is about a stationary stud '5 which extends through the rear support plate 2 and aperture 15 in the base portion 12. A mid-support plate 7 which is parallel with the front and rear support plates 1 and 2 respectively, extends from the stud 5. The base portion 12 is generally adjacent to the middle supporting plate 7 and rotates with respect to the stationary mid-plate about the stud 5. Means such as nuts 6 are provided to secure the stud 5 against the support plate 2 and 7, and an indicator 8 is fixed to the stud 5.

An annular ring or first face portion 16 formedv of molded plastic fits on the cylindrical wall 13 as shown in FIGS. 2 and 8. Means are provided to secure the annular ring to the top of the cylindrical wall. These securing means may include a screw l7 locking the two parts together or it may include an adhesive lock 17 between the two parts.

A plurality of distinct locations are noted on the front face 19 ofthe annular ring 16. These locations 18 correspond to hours of the day and their further significance will be explained in detail hereafter. The motor means 70 is adapted to rotate the hour timer at the rate of one revolution per day so that one equally spaced location passes a given point, such as the time of dayto marking on FIG. 1 each hour.

Switch actuating means are provided at each location onthe hour timer. In the exemplary embodiment, one switch actuating means 20 is at each location 18 on the hour timer. The switch actuating means 20 are. mounted for pivoting relative to the hour timer. Preferably, slots 21 and are formed in the annular ring 16. The slots 21 and 25 are at each location l8, and slots 21 are oriented generally perpendicular to radii from the axis of rotation of the drum means to the annular ring. The switch actuating means 20 includes a pivot pin 22 which fits into the slot 21. Extending upwards (toward the view in FIG. 1) is a gripping portion 26 of the switch actuating means 20 to allow manual pivoting of the switch engaging means. Extending downwardly from the pivot pin 22 is a switch actuating portion 23 which contacts a switch in the device in a manner to be described hereinafter. The switch actuating means 20 is formed of a loop of preferably metalic material which must be squeezed to insert it into the slots 21 and 25. When the squeezing is released,the sides of the switch actuating means push against the side walls of the slot 25. A cutout portion 24 in the 'cylinder allows the switch actuating means to pivot about the pivot pin. However, when the annular ring is fixed to the top of the cylinder 13, the pivot pin is locked against displacement.

This arrangementallows for ease in assembly because the switch actuating means are easily locatable in their correct positions in the slots 21 and 25 and after all the switch actuating means are correctly placed, the

annular ring is attached to the cylindrical wall. No further alignment of the switch acutating means is thereaf- I61 necessary.

In an alternative embodiment, the hour timer or first timer includes a base portion 12- with upstanding projection means 13to (FIG. 11) extending about the periphery of the base near the gear 14.Preferably, the projections are spaced evenly about the periphery to form a cylindrical cage open at the top. The projection means 13'form support means forsupporting an annular switch actuator supporter which is attached to the tops of the projections by suitable attaching means such as screw 17'.

The circular supporter ring 16 has a groove formed by two opposing walls 102 extending from top wall 101. The ring is preferably formed of molded plastic, and it has been found that plastic sold under the trademark Delrin exhibits the proper amount of resiliency so-that'when the cylindrical projections 22' of the modified switch actuating means 20 are assembled into the groove 100, the resiliency of the walls 102 will tend to hold the projections '22 in the groove. One or both walls are provided with indentations 103 to help prevent displacement of the switch actuating means 20. End 26 of the switch actuating means extends through slot 104at-each location on the supporter ring 16'. Arrow 28 indicates the direction the switch actuating means should be rotated to the, ON" position.

A day timer having a-plurality oflocations corresponding to days of the week has adjustable switch acof fourteen locations corresponding to two weeks. lf

only 1 week were provided it would be impossible to set the timer to activate the control device every other day because the 7-day week can not be divided by two.

Therefore, this 14 day or 2 week arrangement is provided. v

A second set of adjustable switch activating means are located at each region 35 of the day timer. The same switch actuating means as was used with the hour timer is used in association with the day timer. A second slot means similar to the slot means 21 is formed in the under side of the disc 31 and the pivot pin 22 is placed therein. Thereafter, the upper disc 32 is placed over the lower disc and secured to it by the screws34.

A cutout portion 36 in the lower disc allows for pivot- I ing movement of the switch actuating means 20.

In a second exemplary embodiment, the disc means is molded of Delrin plastic and a second annular switch actuator supporter ring is formed integrally therewith. In the exemplary embodiment, the supporter ring 109 is formed with the disc 31 of the modified day timer. The supporter ring 109 is substantially similar to supporter ring 16. Opposed walls 112 form a groove 110,- and indentations 113 serve to hold pins 22' in the groove 110. Slots 114 at each location in the disc allow pivoting of end 26' whenthe switch actuating means are assembled in the groove 110.

A projection 38 extends downwardly (or to the left in FIG. 2) and is mounted for rotation about the stationary stud 5 which provides mounting means for mounting the hour timer and the day timer concentrically and for concentric rotation under urging of the associated drive means. Both are free to rotate independently of the rotation of the other, but the rotation is about the sameaxis of rotation.

Indexing means index the day timer to a subsequent location upon the hour timer passing one particular location. In the preferred embodiment, the indexing means 50 causes the day timer to change days when the hour timer passes its-midnight position. In the exemplary embodiment, the indexing means 50 includes teeth means 51 formed in the upper disc 32 (or in disc 32' in the alternative embodiment). An indexing pin 52 extends radially through the annular ring 16 in FIGS. 1 and 2. Spring 53 in the bore 54 pushes against the ring 55 to bias the indexing pin 52 radially outward from the annular ring 16. In the position shown in FIG. 1, the pin is not engaging the teeth means 51. However, as the hour timer rotates in a clockwise direction under the influence of the drive means or motor means 70, when the time of day coincides with the midnight location on the annular ring, the indexing pin 52 contacts the plate 56 on its inclined portion 57. Further rotation of the annular ring causes the indexing pin 52 to be pushed inwardly against the bias of the spring until it engages the teeth means causing the day timer to rotate with the rotation of the hour timer. The curved surface 58 on the plate 56 maintains the indexing pin in its inwardly extended position until the indexing pin 52 passes the plate 56 and the day timer changes days. In FIG. 1, the movement of the hour tirner from 11PM to midnight would cause the day timer to change from Tuesday" to Wednesday; the day of the week being indicated by the indicator or pointer 8.

Switch means and means for positioning the switch means in association with the timer for actuationby the switch actuating means are disclosed. Referring to FIGS. 2 and 3, in the exemplary embodiment, such switch means 60 includes two microswitches, microswitch 61 associated with the day timer. In the exemplary embodiment, the microswitch 61 associated with the hour timer is mounted by suitable mounting means 63 to the rear support plate 2, and the microswitch 62 associated with the day timer is mounted on the intermediate or middle plate 7 by suitable mounting means 64. As the switch actuating means or 20 on the hour timer and on the day timer move passed the respective microswitches 61 and 62, they may be in either one of two positions. In FIG. 2, the position of switch actuating means 20 associated with the hour timer is shown in solid lines to be in such a position that the switch engaging portion 23 is engaging the microswitch 61, but in its second position indicated by dotted lines, the switch engaging portion misses the switch means. Likewise, in FIG. 3, the switch engaging portion 23 of the switch actuating means on the day timer is shown in solid lines to be engaging the microswitch 62 while in its dotted line position, it misses microswitch 62. In the second exemplary embodiment, shown in FIG. 11, switch actuator 20 on the hour timer is in a position that it would engage the microswitch (not shown in FIG. 11) but the switch actuator 20 on the day timer is in the "OFF position and it would not engage its associated microswitch.

Coincidence means permits activation of the control device only when both a switch actuating means at one location on the hour timer and a switch actuating means at one location on the daytimer are both activating switch means. The coincidence means is shown schematically in the circuit diagram of FIG. 9. The coincidence means is in series between thesource of power 9 and the controlled device. Microswitches 61 and 62 are in a series and in order to close the circuit between the source of power 9 and the controlled device, both microswitches must be closed by the respective switch actuating means 20. If either the switch actuating means associated with the day timer or the 1 switch actuating means associated with the hour timerleaves its respective switch in an open position, no power will reach the controlled device.

In FIG. 1 the hour timer is at the II PM position and the day timer is at the Tuesday position. Both switch actuating means are in their engaging positions, that is, the switch engaging means on the hour timer is engaging the microswitch 61 (FIG. 2) and the Tuesday switch actuating means is engaging the microswitch 62. Therefore, at this particular time the circuit is closed and the controlled device is receiving power. However, the day timer is about to move to the Wednesday position where the switch engaging means is ina non-engaging position. Therefore, the controlled device is not set to operate at all on Wednesday.

The day timer is designed to move incrementally between respective day locations under urging by the indexing means. Means are provided to prevent orientation of the day timer between respective days except during indexing. In the preferred embodiment, such means includes a wheel 91 with cut-out portions 92. A small wheel 93 is biased by spring acting on arm 94 against the wheel 91. Wheel 93 rides on the wheel 91 but moves inwardly into the indentations 92. This causes a tendency for the wheel 91 which is connected to the day timer 30 to only assume locations such that the small wheel 93 is engaging the indentations 92. It should be' noted that there are l4 indentations corresponding to the 14 days on the day timer. Therefore. except during the relatively brief indexingoperation, the day timer will only assume positions such that the particular day location is exactly above the indicator 8.

The device is so designed that the wires associated with the respective microswitches will not interfere with rotation of the day and hour timer. Because the stud 5 is stationary, wires 65 from microswitch 62 pass through a bore 66 and then through the bore 67 to the outside of the controller. Wires 68 are already outside the drum means 11 because the microswitch 61 is locatedoutside the drum means 11. Therefore, the wires can run on the outside of the drum means'to connection with the conduit. An aperture 69 is preferably provided in the bottom plate 2 for wires which will be connected to the appropriate circuit. I

Thus a controller for activating a control device has been shown to include a first timer or hour timer l0 and associated plurality of first switch actuating means 20 for activating the first switch means at a first plurality of positions. Drive means drives the timer, and first and second switch means, when simultaneously actuated, activate the controlled device. The timer has been improved by having the provision of mounting means for mounting the day timer for concentric rotation with s 7 the hour timer under drive from associated drive means. The hour timer includes a first timingmeans mounted for rotation about anaxis of rotation. The day timer includes a timing disc mounted for rotation on the same axis as the hour timer. Indexing means'on the hour timer move the timing disc from one days position to the next days position upon rotation of the hour timer from a first particular position to a second particular position.

I claim:

1. A day and hour timer apparatus for activating a controlled device at selectable times over a period of days comprising:

a. an hour timer having a plurality of locations corresponding to hours of the day and adjustable switch actuating means at each location on said hour timer;

b. a day timer having a'plurality of locations corresponding to days of the weekand adjustable switch actuating means at each location on said day timer;

c. mounting means for mounting said hour timer and said day timer concentrically and for concentric rotation under urging of an associated drive means;

and v d. switch means and means for positioning said switch meansin association with said timers for actuation by said switch actuating means.

2. The timer of claim 1 further including coincidence means for permitting activationof said controlled device only when said switch actuating means at one loca-' tion on said hour timer and at one location on said day timer are both actuating said switch means.

3. The timer of claim 1 further including securing means on said timers to allow pivoting of said switch actuating means to engage said switch means while pre venting displacement of saidv switch actuating means relative to the respective timer.-

4. The timer of claim 3 wherein said securing means includes groove means formed between resilient sidewalls to hold said switch actuating means from displacement relative to said timers.

5. The device of claim 1 including indexing means to index said day timer to a subsequent location upon'said hour timer passing a particular location, wherein said LII indexing means includes an indexing pin which is mounted 'on said hour timer for axially movement toward and away from said axis of rotation, said indexing means further including teeth means on said day timer to engage the pin means when said pin means is moved axially toward the axis of rotation, whereby engagement of the pin means in the teeth means causes the day timer to rotate with the hour timer, and cam means extending at least partially about said axis of rotation support means for rotation with the base, said ring 7 having a plurality of locations each location corresponding to one of said distinct times;

switch means for switching the controlled device to its actuated position; a plurality of switch actuating means at each location on said switch actuator supporter ring; and securing means on said switch actuator supporter ring preventing displacement and permitting pivoting of said switch actuating means relative to said switch actuator supporter ring. 7. The timing device of claim 6, wherein said securing means includes opposing sidewalls with groove means formed therebetween; said walls being formed of resilient material to assist in gripping said switch actuating means.

8. In a controller for activating a controlled device including a first timer and associated plurality of first switch activating means for activating the controlled device at a first plurality of positions;

a second timer and associated plurality of second switch activating means for activating the controlled device at a second plurality of positions, each position of said second plurality of positions corresponding to a multiple of said first plurality of positions;

first and second switch means for activating the controlled device; the improvement comprising the provision of: 1

mounting means for mounting'said second timer for concentric rotation with said first timer under drive from as associated drive means. 9. In the controller of claim 8, the improvement further comprising the provision of: i

a. said first timer including a timing drum portion which includes a base portion mounted for rotation about an axis of rotation, b. said second timer including a timing disc positioned within said drum, said timing disc having an axis of rotation for rotation thereabout. 10. The improvement of claim 9 further including the provision of:

indexing meanson said timing drum 'to move said timing disc from a particular position to an adjacent position upon rotation of said'drum from 'a first particular position to a second particular position..-' 11. In the controller of claim 8, the improvement further comprising the provision of:

said first timer including a base protion mounted for rotation about an axis of rotation and projection means about the periphery of said base portion extending upwardly from said base portion and rotating about said axis with the rotation of said base, first switch actuator supporter means supported on said-projection means for rotation about said axis, said second timer including a timing disc positioned within the surface formed by said switch actuator supporter means. 12. In the controller'of claim 11, theimprovement further comprises the provision of: j

second switch actuator support means formed in said timing disc. 13. In the controller of claim 12, the improvement further comprising the provision of:

said first and said second switch actuator supporter means each including securing means for preventing displacement and allowing pivoting of said switch actuating means relative to said switch actuator supporter means,

9 v 10 said securing means including groove means formed 15. In the controller of claim 8, the improvement furbetween opposing sidewall means; said sidewalls ther including the provision of: being formed of resilient material to assist in secursaid first'and second switch actuator supporter means ing said switch actuating means. on said first and second timers, respectively, in- 14. in the controller of claim 13, the improvement eluding openings through which said first and said further including the provision of: second switch actuating means, respectively, are said switch actuating means including pivot pin inserted and groove means formed between pairs means about which said switch actuating means of opposed downwardly extending sidewalls to hold pivots; said switch actuating means for pivoting movement and indentation means on at least one of said walls while preventing displacement thereof.

for receiving said pivot pin means,

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No 3,85%559' Dated February 1.1., 1975 Inventor) Fred Hauser It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 5, line 43, insert hour timer and microswitoh 62 associated with the after "the" andbefore "day". Column 8 in Claim 8, line 29 of column 8 change "as" to an in Claim 11, line 47 of column 8, change "protion" to portion in Claim 12, line 58 of column 8, change "comprises" to comprising Signed and sealed this 1st day of July 1?? Cottmissioner of ?atents attesting Officer ks and Trademar UN TED STATES PATENT OFFICE Februar 4 Patent NO. Dated J y -175 Inventor(s) Fred uSeI It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 5, line 43, insert hour timer and microswitch 62 associated with the after "the" andabefore "day'H Column 8 'in Claim 8, line 29 of column 8 change g as to an in Claim 11, line 47 of column 8, change "protion" to portion in Claim 12, line 58 of column 8, change "comprises" to comprising Signed and sealed this 1st day of July 1-375.

(SEMI) Attest: C. I'LJXIISIEJ'IZIJ Dskim RUTH C. MASON Commissioner of ents Attesting Officer and Trademarks

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
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US2085994 *Oct 24, 1932Jul 6, 1937Roland R NydeggerControl means for mechanical refrigerators
US3194086 *Jul 13, 1961Jul 13, 1965Philco CorpPositioning mechanism
US3267767 *Aug 3, 1964Aug 23, 1966Energy Conversion Systems CorpAdjustable cam structure
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4061893 *Apr 14, 1976Dec 6, 1977Sanner George ESprinkler flow control systems having continuous cycle timer and associated apparatus disposed in a hermetically sealed housing
US4109119 *Nov 8, 1976Aug 22, 1978Schulmerich Carillons, Inc.Program control device
US4181830 *Apr 27, 1977Jan 1, 1980Hermann NeuhierlFlight control system for free flight model aeroplanes
US4503295 *Apr 30, 1984Mar 5, 1985Telsco Industries, Inc.Sprinkler controller
US4509864 *Jul 10, 1984Apr 9, 1985Diehl Gmbh & Co.Program plate for a timer
US4610294 *Nov 17, 1983Sep 9, 1986Mario AnesiDrapery actuating mechanism having dual timer
US4823329 *Mar 17, 1988Apr 18, 1989Theben-Werk Feitautomatik GmbhElectric timer with program carrier switchable from a short term to a long term program
EP0282829A2 *Mar 3, 1988Sep 21, 1988Theben-Werk Zeitautomatik GmbhElectronic time switch with a programme carrier which can be switched from a short to a long time interval programme
Classifications
U.S. Classification200/38.0DA, 200/35.00R, 968/616, 200/38.0CA, 200/38.00R, 200/38.0DB, 307/141.8
International ClassificationG04C23/22, G04C23/00
Cooperative ClassificationG04C23/22
European ClassificationG04C23/22
Legal Events
DateCodeEventDescription
Mar 14, 1983AS03Merger
Owner name: HRM, INC., A CORP. OF CA.
Effective date: 19821102
Owner name: HYDRO-RAIN INC.
Mar 14, 1983ASAssignment
Owner name: HRM, INC., A CORP. OF CA.
Free format text: MERGER;ASSIGNOR:HYDRO-RAIN INC.;REEL/FRAME:004123/0654
Effective date: 19821102