US2202645A - Intermittent or constant discharge device - Google Patents

Description

May 28, 1940. H. E. BRANDT INTERMITTENT OR CONSTANT DISCHARGE DEVICE Filed July 30, 1958 Patented May 28, 1940 PATENT OFFICE INTERMITTENT OR GONSTANT DISCHARGE DEVICE Henry E. Brandt, St. Paul, Minn. Application July-30, 1938, Serial No. 222,212

- 3 Claims.

This invention relates to a valve structure and particularly to a discharge valve or discharge device for a spraying apparatus. structure may have various applications, it is 5 particularly designed to be used with a sprayer in which the liquid is delivered to the nozzle under pressure and discharged without air being delivered to the nozzle and mixed with the liquid.

It is an object .of this invention to provide an extremely simple, convenient and efficient discharge device which can be intermittently operated at the will of the operator or can be placed in position to operate or discharge continuously.

It is a further object of the invention to pro- 15 vide a discharge device formed in part by the conduit which conducts the liquid to be discharged and which comprises a valve body adapted to be engaged by a member carried by an operating lever.

20 It is another object of the invention to provide a discharge device in which the conduit conducting the liquid forms part of a grip handle, the other part of which is formed by a control lever adapted to be operated intermittently or held in 5 position for the device to operate continuously.

These and other objects and advantages of the invention will be fully set forth in the following description made in connection with the accompanying drawing in'which like reference charac- 30 ters refer to similar parts throughout the several views and in which:

Fig. 1 is a view in side elevation of the device;

Fig. 2 is a view similar to Fig. 1, some parts being broken away and others shown in vertical 5 section;

Fig. 3 is a top plan view of the device; and

Fig. 4 is a partial view similar to Fig. 1 showing the parts in diiferent positions.

Referring to the drawing, a discharge device is 40 shown comprising a conduit ID having a portion Illa tapering toward one end and having raised beads or collars lflb thereon, said portion Illa being adapted to have a flexible or resilient tube H disposed thereover and held thereon by fric- 'tion. Conduit It! has a passage I extending longitudinally thereof for the passage of liquid. Said conduit H1 is curved at one end and a valve body I2 is secured to said end and extends transversely thereof, the same having a valve chamber 59 l2a therein with one side of which passage Inc communicates. Valve body l2 is interiorly threaded at its outer end to receive a plug I3. Plug I3 has a collar 13a thereon which engages a gasket l4 held between the outer end of the body 55 I2 and said collar. Another gasket I5 is shown While the 'material such as rubber.

at the outer side of collar l3a adapted to be engaged by the inner end of a nozzle tip which will be screwed on the outer threaded end of plug IS in the use of the device. Plug l3 has a discharge I passage 13b leading therethrough which leads 5 I from chamber lZa and said plug has a valve seat l3cformed thereon surrounding passage I311. Valve seat I30 is adapted to be engaged by a valve l6 which will have a face of yielding or resilient stem I1 connected thereto and leading therefrom, the same passing through an opening in the rear end of valve body l2 and projecting rearwardly from said body. A coiled compression spring 18 surrounds valve stem l1 hearing at one end concave side, upwardly, which portion extends in spaced relation to conduit Ill. Lever 20 has a portion Zllbextending at an angle to portion 20a toward and transversely of conduit ill, the same being pivotally connected at its end to a hug Ind on conduit I0 by the pivot member 2|. The valve stem I1 is pivotally connected at its rear end by a pivot 22 to the lever Zlladjacent the upper end thereof. A resilient strip 23 is secured to handle 20 and while this strip might be secured in various ways, in the embodiment of the invention illustrated it is shown as seated in a groove formed in the top of portion 20a and held therein by the sides of said groove being. pressed thereagainst. Strip 23 is shown as somewhat offset upwardly a short distance from lever 20 and the same has a button 24 secured to the top, thereof some distance from lever 20, said button being shown as '4 having a semi-sphericaltop. The body l2 has a recess l2b formed at its top adjacent its rear end in which the free end of strip 23 is at times adapted to engage. I

In operation, the liquid is discharged through conduit ll under pressure from a suitable container forming part of the sprayer and said liquid passes into the passage lllc of conduit l0 and from said passage into valve chamber lZa. As

stated, spring l8 urges valve Hi to closed position Q and said valve is normally closed. When the operator desires to spray, he grips the conduits Ill and II with handle portion 20a and moves said portion toward conduit II]. This swings lever 20 about its pivot 2| and movesvalve stem H and Valve I6 has a valve 10 valve l6 rearwardly away from valve seat I so that the liquid may be discharged through passage 53b and sprayed by the nozzle. The spraying can be continued as long as handle portion 20a is pressed towards conduit l0. When handle portion 20a is released spring l8 will move valve E6 to closed position. The device can thus be intermittently operated at the will of the operator. It is sometimes desired to project a continuous spray from the device, as when a large plant or tree is being sprayed. In the normal intermittent operation of the device, the free end- When it is desired to have a continuous spray button 2 3 will" be depressed by the operator and this can be very of strip 23 passes over valve body l2.

conveniently done by pressing on said button with the thumb or finger. When strip 23 is so depressed and the handle 28a released, the freeend of the strip will engage in the recess 12b and,

as shown in Fig. 2, valve it will be held away from seat E30 or in open position. With the valve in this position and with lever 2B held in the position shown in Fig. 2 the device will operate continuously.

From the above description it is seen that I have provided a very simple, very efficient and easily operated discharge device adapted for either intermittent or constant discharge. The structure is simple and compact, the parts are few and they can be easily made and assembled. The device has been amply demonstrated in actualpractice, found to be very successfu and eihcient and is being commercially made.

It will, of course, be understood that various changes may be'made in the form, details, ar-

rangement and proportions of the parts, without departing from the scope of applicants invention,-

of said body and laterally spaced from said conduit, a spring urging said valve to closed position, a lever having an arm pivoted to said conduit and having a handle portion spaced from said conduit and adapted to be grippedtherewith, said valve stem being pivotally connected to said lever, said body having a recess as its end adjacent said lever and a resilient arm. rigidly secured to said lever normally in position to move over said valve body but depressible to engage in said recess and hold said valve'in open'position.

2. A valve structure having in combination, a conduit through which liquid may pass, a valve body at the end of. said conduit and having a chamber therein with a discharge passage leading therefrom, a valve seat surrounding said 7 passage, a valve movable to and from engagement with said seat and having a valve stem projecting from said body, an angle lever having a handle portion spaced from and adapted to be gripped with said conduit anda portion-extending from the end of said handleportion transversely to and pivoted to said conduit, said valve stem being pivotally connected to said lever adjacent the vertex of the angle portion of said lever-and'a member carried by said lever and normally moving over said body in the movement of said lever but movable to engage said body to hold said lever in position with said valve open.

3. A valve structure having in combination,*a conduit through which liquid may pass, a valve body secured to said conduit having a chamber therein with a discharge passageleading'therefrom, the axes of said body and conduitbeing substantially parallel, a valve seatsurroundin'g said passage, a valve movable to and fromengagement with said seat and having'a valve stem.

projecting from said body, a lever having a handle portion spaced from and adapted to begripped with said conduit, said lever having a portion extending transversely of and pivotally connected to said conduit, said stem being pivotally connected to said lever and means cooperating with and rigidly secured to said lever normally inoperative in the movements of said lever'but being movable to engage said body and hold said lever in position with said valve open.

HENRY E. BRANDT.

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