US2073753A - Correlating cap for sprayers and supply cylinders - Google Patents

Description

March 16, 1937. J. L. NOVAK CORRELATING CAP FOR SPRAYERS AND SUPPLY CYLINDERS Filed March 9, 1935 Patented Mar. 16, 1937 UNITED STATES PATENT orrncs CORRELATING CAP FOR SPRAYERS AND SUPPLY CYLINDERS Application March 9,

Claims.

This invention relates to a detachable screw top adapted for use on the supply tank of a household or insecticide sprayer, and has for its ,7 object improvements in the formation thereof 5 by means of which the top, initially stamped out and contoured in quantities, may be effectively and easily secured to the under side of the pump cylinder of the sprayer, leaving the latter in an obliquely angular position relatively to the axis of the cap and to the fiat bottom of the supply tank, so that when the assembled device is rested upon the table or floor there is a threepoint contact eiiected with the supporting surface, which renders the upsetting of the sprayer as a whole, and the consequent wasteful escape of its contents, decidedly unlikely.

In the drawing:

Figure 1 is a perspective of the assembled device.

Figure 2 is a side elevational View partly in phantom, bringing out the rested positioning of the rearward end of the pump cylinder and of the bottom of the supply tank upon a supporting surface.

Figure 3 is a perspective of the screw cap disassociated from other parts in order to emphasize the positioning of the cylinder supporting trough in its domed top.

Figure '4.- is an elevational view taken lengthwise of the pump cylinder from the handle end thereof, designed to bring out the three-point support of the device when rested upon the floor or table, the direction from which this view is taken being perpendicular to the showing of Figure 2.

A represents a flat bottomed supply container of either metal or glass, in which is contained a supply of liquid used for spraying, and B the screw-threaded neck through which renewal supplies may be placed in the container. The container is normally closed by the cap member C, which, though integral, consists of a lower threaded portion D, a peripheral portion E for securing an adequate unscrewing grip upon the cap, and a domed top portion F. In this latter there is provided a cradle or trough G which extends generally from about the middle of the domed portion toward one edge of the cap, and at such an angle that when the pump cylinder H has its forward end secured within the trough G, as by soldering or spot welding, the rear end of the pump cylinder, and generally speaking the handle J as well, rests upon substantially the same horizontal plane which traverses the 55 bottom of the supply tank A. Thus, as brought 1935, Serial No. 10,192

out particularly in Figure 4, when a sprayer is rested on a table or floor surface between occasions of use there is at least a three-point contact surface for the device as a whole which renders its upsetting very unlikely. Actually any point on the bottom of the tank might also be regarded as an additional resting point, but for thepurposes of this disclosure the three points referred to are indicated in Figure 4, as X, Y, and Z, X being the handle end of the pump cylinder, and Y and Z being diametrically opposite positions on the bottom of the tank, adequately spaced on either side of the axial line of the pump cylinder so as to render the upsetting of the sprayer exceedingly unlikely.

It will be noted that along the center of the groove or trough G there is provided a smaller trough or beading G in which the bead J of the pump cylinder wall may be fitted, thus securing an additional accuracy of fit between the troughed portion of the cap dome and the wall of the pump cylinder. Similarly a transverse groove or depression G may be provided for the lodgment of the beaded terminal edge or end of the cylinder J as this latter is nested in the groove G. Both of these are, of course, optional.

In the course of assembling the parts an adequate hole may be cut in the dome wall for the passage therethrough of the usual aspirating tube K which extends from near the bottom of the supply tank to a position operatively adjacent the spraying nozzle J of the pump. Any excess size of such an aperture may, of course, be cured by soldering applied on the under side of the dome wall about the aspirating tube.

What I claim is:

1. A correlating cap for a flat-bottomed supply container of a sprayer, comprising a threaded lower portion adapted for attachment about the complementarily contoured filler neck of the container and a domed top portion having an angularly inclined troughed portion adapted for attachment to the under side of the pump cylinder at its forward end, whereby the rearward end of the pump cylinder is located in a plane substantially coincident with that of the fiat bottom of the container.

2. In combination with a fiat bottomed fluid container and a manually operable pump cylinder, a unitary correlating capfor such parts, comprising a threaded lower portion adapted for detachable engagement with the correspondingly contoured filler neck of the container and a domed upper portion having an inbent portion extending angularly to the horizontal from the central portion of the dome toward a lateral edge thereof, for the soldered lodgment therein of the forward end of the pump cylinder, thereby positioning the rearward end of the pump cylinder in approximately the same plane as the flat bottom of the container.

3. A sprayer construction having, in combination with a pump cylinder and a flat bottomed supply container, a detachable closure member for said supply container having its domed upper portion provided with an inclined trough wherein the forward end of the pump cylinder is secured, thereby positioning the rearward end of the pump cylinder in substantially the same plane with the flat bottom of the container to assure stability of its positioning upon a supporting surface.

4. A detachable filler cap for the supply container of a sprayer, comprising a unitary stamping whose lower portion is threaded for attachment to a correspondingly contoured portion of the container, and whose domed upper portion is angularly troughed to provide a seat for the lodgment of the under side of the forward end of the pump cylinder of the sprayer, the adjacent surfaces being adapted to be structurally united, thus positioning the pump handle end of the cylinder substantially in the same plane as the bottom of the supply container.

5. A combined filler cap and pump cylinder support for a sprayer, comprising a concaved sheet metal member having that portion of its wall adjacent its peripheral edge threaded for detachable engagement with the correspondingly threaded neck portion of the supply container and having its dome portion traversed at an acute angle to its lengthwise axis by an inbent troughed portion wherein the forward end of the pump cylinder is secured, thereby effecting the positioning of the handle end of the pump cylinder in substantially the same plane as the flat bottom of the supply container when the sprayer as a whole is rested upon a horizontal 20 surface.

JOHN L. NOVAK.

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