US2167866A

US2167866A - Device for atomizing liquid insecticides or fungicides

Info

Publication number: US2167866A
Application number: US119306A
Authority: US
Inventors: Hubert D Bennett
Original assignee: PLASKON CO Inc
Current assignee: PLASKON CO Inc; PLASKON COMPANY Inc
Priority date: 1937-01-06
Filing date: 1937-01-06
Publication date: 1939-08-01
Anticipated expiration: 1956-08-01

Description

DEVICE FOR ATOMIZING LIQUID INSEGTICIDES OR FUNGCXDES Filed Jam. 6, 1937" [NIVEA/.TOR

- bottle I.

. Patented Aug. 1, 193.9

DEVICE Foa A'roMIzING LIQUID INSEC- frrcmaspa FUNGIcmEs Hubert .1). Bliiiott, vToledo, ohio, assignor to Plaskon Company, Incorporated, Toledo, Ohio, a corporation of Delaware I Appiioanonjanuary s, 1937, serial No. 119,306 1 claim. (crass-95) This invention relates to atomizers, and more particularly to a, device for atomizing liquid insecticides or fungicides under thev pressure of a gas dissolved in such liquida It is customary to spray liquid insecticides by means of an atomizer, into which air is forced by an associated plunger pump or rubber bulb. The present invention, however, resides in a device for storing gas charged liquid insecticides or fungicides and in cooperating means for atomizing such charged liquids by means of the pressure developed by such gas.

`The principal object of the invention is the provision of improved means for storing a gas charged liquid insecticide or fungicide.

Another object is the provision of van improved container for such charged fluid insecticide; and.

Still another object is the provision of improved means readily associable with such container for spray vaporizing such `charged insecticides.

' Referring to the drawing:-

Figure I is a front elevational view of the device embodying my invention.

Figure II is a sectiontherethru substantially along the line lll- II of Figure III.

Figure III is a plan view of the device shown in Figure I. l Y.

Referring to the drawing in detailz- The device embodying the invention comprises a bottle I, having walls of such thickness so as to withstand the pressure of a gas dissolved or' adsorbed in a liquid insecticide or fungicide shown as contained in the bottle and designated by the letter L. gas in the space above the' liquid being designated by the letter G. This bottle I is closed by means of a stopper 2, preferably of resilient rubber, through the center of which a tube 3 projects. This tube is cemented or otherwise firmly held in the stopper. The lower open end of the tube extends nearly to the bottom of Athe bottle and the upper end projects somewhat above the surface of the stopper 2. This upper end of the tube 3 is sealed with a disk 4 of soft and easily penetrable metal, such as tin or lead. The atomizing means, forming a part of the invention, comprise a plastic molded body 5 of such shape so as to snugly hold the This bottle I is resting on a gasket 6 of resilient rubber which is interposed between the body 5 and the bottom of the bottle. Another resilient gasket 'I is positioned between the neck end of the bottle I andthe flat bottom of an annular depression 8, in an atomizer head 9 which, by means of a flange I0, is threaded on' Ision I6 surrounds the valve stem hole in the upthe molded body 5. In assembling the head 9 it is desirable that the gaskets 6 'and "I be somewhat compressed to form a gas tight joint -around the neck end of the bottle and exert frictional forces on the threads to prevent the head from 5 becoming accidentally unscrewed from the casing. A pair of counterbore-like depressions II and I2 are molded in the head 9 directly above the bottle opening. A shoulder I3, formed by the junction of the molded depressions II and I2, is angularly faced and forms a seat for a conical Lvalve head Il whose stem I5 projects upwardly through a vertical hole in the head 9. A straight walled, flat bottomed, counterbore-like depresl5 per face of the head 9, and a flanged rubber gasket Il is seated therein surrounding the stem I5. The flange of this gasket I1 forms a packing around the stem I5 of the valve head I4. A spring I Il circumjacently mounted on the stem by exerting pressure against the underside of a button I9, xed to the extending portion of the stem I5, holds the valve head I4 against the shoulder I3, thus forming a gas tight closure. Since an equal amount of pressure is exerted by the lower end of the spring against the flange of the rubber gasket I1, this flange is slightly extruded thus increasing its packing action of the stem I5.

Th :fiat surface of the valve head I4 is providedwith a sharp metallic spur 2|), in such position, so that when the button I9 is pressed an amount sucient to somewhat compress the gasketll, the spur 20 willpenetrate the seal 4 in the end of the tube 3, thus breaking the seal oi the bottle I.

The counterbore-like depression I2, in the interior of the atomizer head 9, is provided with a narrow molded pocket 2l and a small hole 22 extends between the pocket and the exterior of, the atomizer head. To aid in atomizing the liquid a thin metallic pin 23, extending through the hole 22, is studded in the atomizer head 9 and its slightly bulbous head 24 is positioned in the outer end of the hole 22 flush with the exterior of the head.

When the filled bottle I has been inserted in the molded body 5 and the atomizing head 9 has been securely Vthreaded thereto, pressure is applied to the push button I9 until the gasket I1 is slightly depressed, thus causing the spur 2c to penetrate the sealing disk 4. Reducing the pressure on the button I9 slightly so that its bottom rests on the uncompressed surface of the gasket II releases some of the dissolved gas in 55 the bottle, thus creating a pressure and forcing some of the liquid contents through the opening formed when the valve head H is forced from the angular shoulder I3 by pressure onthe button I9 and thence, with increased velocity, through the bore 22. 'I'he head 24 of the pin 23 in the well known manner, aids in the atomizing process. I

While in this embodiment the container is shown in the form of a bottle, it will be readily seen that a metal container, such as the widely known tin can", may be advantageously employed. When such is the case, the sealed tube 3 projects through the end of the can to which it is soldered or otherwise sealed. It will also be seen that the embodiment of the invention herein disclosed is well'adapted to fulll the objects primarily stated; it is to be understood, however, that the invention is susceptible to variation, modification and change within the spirit and scope of the subjoined claim.

Having described the invention, I claims' In a device of the class described, in combina-I tion, a sealed inner .container charged with an insecticide vliquid and a pressure creating gas, said sealed inner container having a puncturable seal and a conduit leading from said puncturable seal to said insecticide liquid, a casing comprising a hollow body of molded plastic material to receive said sealed inner container and a cover of molded plastic material, there being a joint between'said coverand 4said sealed inner container when the device is assembled, means for rendering the joint between said cover and said rcontainer fluid tight, said body and cover having cooperating threads for holding said body and cover in assembled relation and exerting clamping pressure upon said container, said cover having a passage formed therein which passage terminates at one end in an atomizing nozzle, a spur mounted within said passage and adapted to puncture said puncturable seal, a valve within and normally closing said passage, and means mounted in said cover and connected to said valve and manually operable from the exterior of said cover to open said passage and cause said liquid to be atomized from said nozzle.

HUBERT D. BENNETT.