US2080864A - Insecticide sprayer - Google Patents

Description

y 1937. I H. HILTS 2,080,864

INSECTIC IDE SPRAYER Filed June 7, 1935 Patented May 18, 1937 INSECTICIDE srmnnm Harold Capron Hilts, Honolulu, Territory of Hawaii Application June 7, 1935, Serial No. 25,501

9 Claims.

The invention relates to insecticide sprayers and more particularly to sprayers for supplying insecticide and the like in the form of powder. In devices of this character simplicity of construction, economy of manufacturing costs and certainty of operation contribute to the production of a commercially saleable article, and it is accordingly the primary object of the invention to produce a powder duster in which all of the above desirable qualities are combined.

The invention will be more readily understood,

:by reference to the accompanying drawing and the further detailed description in which are set forth specific embodiments which are intended as illustrative of the inventive thought rather than as limiting the invention to the precise details herein set forth.

In the drawing,

Fig. 1 is a central vertical section through the cone-shaped dispenser;

Fig. 2 is a similar view showing powder being forced out of the apex of the dispenser;

Fig. 3 is a transverse section on line 3-3 of Fig. 2, and

Fig. 4 is a fragmentary detail view of a modification showing a portion of the dispensing tube, the socket in which it fits and a leaf spring for forcing the tube away from the base of the container.

Referring specifically to the drawing, the reference numeral I0 denotes a cone-shaped container having flexible resilient Walls composed of any suitable material, as for example, rubberized paper. This material is strong and inexpensive as well as flexible and resilient, and accordingly is very suitable for the purposes of the present invention. The surface of this wall is preferably slightly roughened to prevent the container from slipping through the hand of the user. The rubberizing of the paper renders the container water-proof. Obviously other materials may be employed, as for example, parchmentized paper, rubberized cloth and the like. At or adjacent the apex of the container is provided one or more small apertures H. As shown, the opening H is formed by tearing off or snipping off the extreme apex of the container when the device is to be used. By leaving the top closed leakage of powder is avoided during shipment and until the article is placed in operation.

A substantially rigid plate [2 serves as a base for the container and may be secured to the flexible side walls by rolling over or beading. This base is preferably of metal, as for example,

tin plate, and should be such as to withstand the corrosive action of chemicals which may be employed for insecticide purposes. A socket I3 is provided at the center of the base plate and is preferably rigid therewith. The socket may be secured to the base plate by soldering. Extending fromnear the base to the apex of the container is a rigid perforated tube 14 of substantially uniform diameter through the major portion of its length, this tube being provided with a plurality of small openings or apertures IE to permit insecticide; preferably in the form of powder, to enter the tube.

According to my invention, means are provided for urging the tube away from the base and toward the apex, and as shown in Figs. 1, 2 and 3, a helical spring I6 is secured to the lower end of the tube and reacts against the base plate so as to urge the tube upwardly, the socket i3 serving as a guide. At the upper end of the tube I4 is carried a rigid conical collar ll preferably secured to the upper end of the tube so as to be rigid therewith. This collar rests inside the apex of the cone-shaped container and prevents the perforated tube from being forced through the apex by reason of the pressure of the spring I6. The collar further serves to provide a support for the apex of the container and prevents the container from collapsing at the upper portion thereof, so that the aperture or apertures H are always open. It will be further noted that the collar, forced into position by the spring I6, holds the resilient wall of the container taut and lends resilience thereto so that when the sides are pressed inwardly, as indicated by the arrows in Fig. 2, the wall, on being released, will immediately return to its original shape.

In the modification disclosed in Fig. 4 a leaf spring 16 is secured to the base plate l2 and a socket I3 is carried by the leaf spring. The lower end of the tube 14' fits into this base and toward the apex in the same manner as has been described in conjunction with the first embodiment of the invention.

It will also be apparent that the spring may be secured to the lower end of the tube instead of to the base, in which case the socket may be omitted, although such construction is not as desirable as the two forms illustrated for the reason that the lower end of the tube will not be maintained in a central position with reference to the base.

It will be obvious that other modifications of the invention may be resorted to within the scope of the invention and without departing from the inventive thought.

What I claim is:

1. An insecticide duster comprising a container having a rigid base and a flexible resilient conical wall apertured at the apex thereof, a socket centrally mounted on said base plate, a rigid perforated tube having a conical collar at one end thereof fitting into said wall at the apex and fittin into said socket at the other end, and a spring reacting between said base plate and said tube to force said conical collar into the apex of said container.

2. A sprayer comprising a container having resilient walls with an outlet opening therein and a rigid base, a perforated tube extending lengthwise through said container, and resilient means urging one end of the tube into registry with said outlet opening. I

3. An insecticide sprayer comprising a container having a conical resilient wall with an outletopening at the apex thereof and a rigid base, a rigid perforated dispensing tube having a conical collar at one end thereof adapted to fit into the outlet end of said wall and resilient means reaotingbetween the base and said tube.

4. A sprayer as set forth in claim 3 wherein a guide socket is provided for the end of the tube opposite said collar.

5. A sprayer as set forth in claim 3 whereinthe resilient reacting means comprises a helical spring secured to the tube.

6. A sprayer as set forth in claim 3 wherein the resilient means comprises a U-shaped leaf spring having one arm thereof secured to said base, while the other arm carries a socket in which the lower end of the perforated tube is adapted to fit.

7. An insecticide sprayer comprising a container having a resilient conical wall with an aperture at the apex and a rigid base, a perforated tube extending substantially from the base to said apex and having anppening registering with the opening in said conioalwall, and a rigid conical collar secured to said tube at the outlet end thereof to provide support for the apex of the container.

' 8. An insecticide sprayer as set forth in claim 7 wherein resilient means are provided for urging said tube toward the apex of the container.

9. A conical-shaped container comprising flexible sides, a discharge opening at one end and a solid base at the other, a tube in alignment with said discharge opening and having apertures formed therein, with a conical shield atits upper end, the sides of said shield being in close contact with the inner wall of said container, the upper end of said tube being below the discharge opening of the container forming a chamber between the shield and the discharge'opening, resilient means supported by saidbase in contact with the lower end of said tube, said flexible sides of the container being adapted to force the contents of said container into said tube through said apertures and in turn out through said discharge opening upon pressure being exerted upon the sides.

HAROLD CAPRON HILTS.

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