|Publication number||US2497612 A|
|Publication date||Feb 14, 1950|
|Filing date||Dec 28, 1945|
|Publication number||US 2497612 A, US 2497612A, US-A-2497612, US2497612 A, US2497612A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (1), Referenced by (10), Classifications (3)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Feb. 14, 1950 M. KATZMA-N 2,497,61
VAP ORIZER Filed Dec. 28, 1945 2 Sheets-Sheet 2 INVENTQR MA X KA TZML IN Patented Feb. 14, 1956 UNITED STATES PATENT OFFICE vAPomzER- V Max Katzman, Brooklyn, N. Y. Application December 28, 1945, Serial No. 637,696 9 Claims. (01. 21- 110) This invention relates to portable Vaporizers for medications, insecticides or fumigating materials.
It is the object of the present invention to provide a vaporizer which is of a fireless type and whichis not dependent upon auxiliary apparatus for supplying the heat required for its vaporizing action.
1 According to the invention, unslaked lime and water constitutes the heating means for vaporizing the medication, insecticide or fumigating material and the lime is made a part of the vaporizer construction, the water being added when the vaporizer is tov be put to use. The vapor generated by the union of water with the lime is directed to the atmosphere through a spout, also a part of the vaporizer construction, which contains the medication, insecticide or fumigating material to be dispensed. The container housing these parts resembles a paint can and has the usual tight sealing cover or lid in the top which must be pried ofi to expose the spout and the materials. By adding the water to slake the lime, the spout is moved outwardly, by the expansion and pressure of the lime, through the uncovered opening of the can and retained by an engagement of a radial flange on the bottom of the spout with the top of the container. The vapor which is created by the slaking action is directed through a bag or other porous mass located in the spout to pick up the medication, insecticide or fumigant and the combined vapors or fumes are dispersed through the narrow outlet .of the spout to the atmosphere. In one form of the invention the spout is the full height of the can, while in another form the spout extends only half the height of the can and the lime is retained in the can free of the spout.
For other objects and for a better understanding of the invention, reference may be had to the following detailed description taken in 00111180:-
tion with the accompanying drawing, in which Fig. 1 is a cross-sectional view of the vaporizer in the form .of the invention having the long spout;
Fig. 2 is a fragmentary view of the device, partly in section, showing the position of the parts of Fig. 1 when the vaporizer is in operation, and with the spout in its projected position, and Figs. 3 and 4 are respectively similar views of another form of theinvention.
Referring now to Figs. 1 and 2, there is a container or can H of a type similar to that used for paints, having a bottom l2 and a ring-like top I3 and a round cover l4 tightly fitted into the ring-like top.
To remove this cover l4, it must be pried off by application of a tool under the radially ex-' tending flange l5 thereof.. Since the cover I4 tightly fits the main body I I, there is providedian airtight package for the marketing of the device with its operating parts.
.Inside of the container body is a spout or funnel I6 extending the full height of the can and having a radially extending flange I1 on the bottom end thereof. This spout tapers from a large diameter at the bottom to a small diameter at the top or outlet end. The upper end of the spout while the spout is contained in the can and with the cover M in place is confined against lateral adjustment in the can by projecting into a recess i8 provided in the cover I4.
When the cover I4 is removed and water added to the can, the spout IB is projected out of the can due to the expansion of the lime and assumes the positionshown in Fig. 2. It is prevented, however, from leaving the can by engagement of its radially-extending flange I! with the top of the can. w Lumps 2|.v of unslaked lime are confined within the bottom of the spout. A suiificient quantity of the lumps is supplied so as to extend upwardly in the spout for more than half the height thereof. Above the unslaked lime and in the upper end of the spout Hi there is provided in a bag 22, containing the medication, insecticide or i umigating material and which is large enough so that it will be wedged into the upper end of the spout by the expanding lime and vapor pressure and not be easily displaced therefrom.
To elfect the operation of the vaporizen the cover I' l is removed and water is poured into the can along the outer-side of the spout. This water passes inwardly under the flange I! of the spout and along the bottom 12 of the can and engages the lime lumps to cause a heat and vapor generating action to be set up. The
vapor is collected in the spout and passed through the bag 22 and its contents, at the same time, the lime will expand or swell and serve with the vapor pressure to'raise the spout out of the can. The action continues violently for half an hour or so and thereafter slowly gives off vapor for a matter of several hours. This vapor must necessarily pass through the bag 22 in leav ing the spout and in doing so vaporizes the material in the bag so as to unite with the vapors from the slaked lime to produce the desired fumes for discharge to the atmosphere.
In Figs. 3 and 4, there is another form of the invention. This form includes a container or can 3| having a spout 32 wider at the bottom than the spout l6 of the previous form and only half the height of the can 3| instead of extending the full height .of the can.
Also, the medication, insecticide or fumigating material is in the 'form of a conical-shaped cake 33 "adapted to fit in the bottom end of the spout 32. This cake 33 has a central opening 34 to permit the upward flow of vapor from lime material 35 lying in the bottom of the can and extending upwardly to half its height. The fumes from the lime react on the walls of the cake opening 34 upon passing upwardly toward outlet 36 of the spout to absorb and vaporize the material.
The spout 32 normally lies on the lime lumps and in the top half of the can El as shown inFig. 3, and the can is closed by a cover 3'l fitting a peripheral groove 38 in the top of the-can. The spout 32' has its bottom end practically closed by the cake 3'3 and by means 'of'this cake and a radiallyextending flange 39 on the spout t he'spout is retained against downward displacement in the lime material 35. Sincethe'limematerial is not confined to the interior of the spout as' in the previously describedconstruction, more lime material may be stored within a given height of the can.
The operation of this form of the invention is similar to the other form in that-it is first necessary to remove the'cover and deposit water in the can. When the cover 37 is removed and the outward end 36. of the spout is exposed to the atmosphere, water is poured into thecan andpasses downwardly through the spout for contact with the unslaked lime 35. As in the other-form, the lime undergoes a slakingaction and expands to push upwardly. the spout 32tothe position shown in Rig. 4. Full expulsion of the. spout 32 .isprohibited by the engagement of the radial flange 39 with the top of the can. It is preferablethat the expansion of the lime be only sulficient when fully expanded to make the contact'of the spout flange 39 with the top of the can. If other expansion of the material were permitted the same would be forced through the opening 34 of the cake 33and lessen the efficiency of the vaporize-r- The, vapor resulting from the reaction acts upon the wall surface of the opening; 34 of the cake. 33 to absorb some of its ingredients and take these ingredients into the atmosphere with them. This vaporizing action continues'as in the'prior case for a considerable time, violently at first and then slowly thereafter.
Once the Vaporizers have been used they can only again be used by replenishing the same with new materials. "However, the can and spout are made of cheap materials and can be thrown away without great loss to the purchaser. If desired, packaged materials can be sold for refilling purposes. The can with its cover, spout and materials can be'm'erchandis'e'd'in the storesthe same other can goods are merchandised.
I have described what l believe tube the best embodiments of my invention. I do not'wish, however, 'to' be confined to the embodiments shownjbut what I desired 'to' cover by Letters Patentisset forth in the" appended claims.
I claim: 1. A vaporizer comprising a container having an opening in a wall therein, aspout-disposed.
in the container and movable through said opening, a first material in said container generating heat on the addition of a reactive reagent to said material and reacting expansively on said spout on the addition of said reactive agent to move said spout through said opening, and a second material in said spout lying between said first material and said opening and generating vapors on application of heat thereto.
'2. A vaporizer as described in claim 1, said container having a ring around said opening and said spout having its end nearest said opening smaller than said opening to permit its extension there- 'through and having near its other end means to engage said ring in extended position of said spout through said opening and to limit thereby said spout in said extended position.
3. A vaporizer as described in claim 1, said spout being conical and tapering towards said opening, the diameter of said spout at its larger end being greater 1. than thatc'ofxsaid opening in said container.
4. A vaporizer as described in claim 1, said opening be-i'ng at the top of the. container and being circulargai'l'd said container' having a. ring-like top aroundf-said opening,said spout= being conical and having its-upper: smallerend. smaller in diameter than said opening to permit its.extension therethro'ugh l-iand having at its lower end flange-means' -to :engage said ring-like topin extended position 'sof :said spout through said opening and to limit saidspoutin said extended position.
5. A vaporizer as described .in claim.l,.said opening being on the top of said container, .said spout e'xtending substantially J the i full height clef said container, said first an'd: second materials being confined in said spout: int inactive condition of said-vaporizer with said second material iyin'g above said first material.
d-A vaporizer as described in claim 1, said openin'g-"beingon the top of said 'container,.-said first material being disposed substantially in the lower half of' said containen and said spout resting on said first material and extending substantially' upto'sa'id openi ng, said vaporizer including' means' on-the spout adaptedto-engage with the top otthe'container' to' prohibit its final expulsionentirelv from the container. when said first material has beenreactively expanded.
, 7. "A vaporizerae described :inclaim 1, said opening being-i on the top of said container; said firstniater ial being -disposed substantially in the lower half-of:- said container and-said spout :being conical-and taperingupwardly towards said opening; said se'cond:v material being in the form of a- S'o'lid cake f of conical shape :fltting' within the spout and: defining apassage theret-hrough between said first material and said opening.
8. A vaporizencomprising a .containerhaving a I top opening; spout disposed inthe :container and movable upwardly through- :said opening to an eXtended -position; a'removable cover adapted 'to tightly fit -said--=-opening of 'saidcontainerin closed position" and having a recess adapted in said position to removably receive snugly f the upperend= of the-spout in retraotdposition, a first mate'riai in said container generating heat on the addition of areactive reagent to saidmaterial, and reacting exp'an'sively on said spout'on the addition of said reactive agentto'move said spout through said opening -and-a' second material in said spout lying above said first material generatingvapo'rsi'omapplication of he'at thereto.
:9. A- vaporizer: comprising a container having a top opening therein, a removable cover for such opening, a conical spout disposed in the container upwardly movable and having a greater diameter at its lower end than the top opening in said container, a first material in said container and spout reactively expansible and generating heat of reaction on addition of a reactive reagent, a second material in said spout lying above said first material generating vapors on application of heat thereto, and means associated with said spout and said second material, pervious 19 Number 6 to said vapors, but preventing passage of said second material.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Name Date 2,352,951 Geria July 4, 1944
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