US1431467A - Dispensing valve - Google Patents

Description

Patented Uet. 10, 1922..

iuurrpsrnrrs LOUIS KOOIEBSTEIN, YORK, N. Ya, ASSIGNOR IO (VEST DISINFECTING COM- rnrrur PANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

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Application filed February 20, 1920. Serial no. 360,148.

To all whom it may concern:

Be it known that I, LOUIS Koornns'rnm, a citizen of the United States, residing at New York, county and State of New York, have invented certain new and useful11nprovements in Dispensing Valves, 01 which the following is a full, clear, and exact specification. l i a i i This invention relates more particularly to thatclass of valves operated by a push rod or plunger to dispense small quantities of liquid, such as soap, and usually into the hand of the operator. The object of the present invention is to provide a device of thistype which avoids the use of packings or washers in connection withthe movable parts and which is capable otlong andcontinned use without adjustment; a further object being to provide novel and eliicient means which prevents the flow ofliquid through the valve directly from the main supply in all positions of the plunger.

The invention will'be understood by reference to the accompanying drawing, in

which- Fig. 1 is an enlarged longitudinal crosssection of an embodiment of the invention, and

Fig. 2 is a, fragmentary longitudinal cross-section illustrating a modification of the inlet end of the device.

Byreference to the drawing, it will be seen that the device comprises a casing 1,

formed on its upper interior face with a shallow threaded flange 1 to receive the threaded outer face of a sleeve 2, the latter being formed with a reduced conical end which constitutes the dispensing end of the device. By means of flange'l the outer wall of the sleeve is spaced from the inner wall of the casing, to provide a chamber 4, this chamber being closed at its lower end by means of a packing ring?) fitted within a recess formed in the end of the casing, the ring being maintained in position by a flange 6 projecting from the conical lower wall of the sleeve. A series of sockets 7 are formed in flange 6 for the reception of a tool by means of which the sleeve may be rotated.

Slidably movable within the sleeve 2, and shaped to conform with the conical end of the latter, is a plunger 8, its lower end projecting below the end of the sleeve. Plunger enlarged at its upper end engaging the lower face of block 9. v 8 isgreater inwidth than the nut 15 sothat .the plunger is free to move upwardly with 8 is designed to operate a valve controlling the passage of liquid into the sleeve, and the valve and its 18800121138 parts will now be described.

out changing the position of ball 12 until the bottom wall of the socket comes into contact with the nut. a

i In the embodiment of the invention illustrated in Fig. 1, theball 12 is operated as a member of a double-acting valve. To such end, the block is formed with a chamber 16, the inner wall of which is threaded to receive a disk 17 formed with a central aperture 18 which is enlarged at its lower end to form a conicalseat 19 for the ball. The disk 17 is formed transversely of its upper face with a channel 20 by means of which it may be rotated by a suitable tool from a pointexterior to the removable cap 21, when desired.

It will be noted that in the embodiment of the invention illustrated in Figure 1, liquid may flow through apertures 18, 10 into the sleeve 2 only when ball 12 is in a position intermediate its valve seats 11, 19. The liquid is free to flow from the sleeve into the chamber 4: through inlet ducts 22 formed in the wall of the sleeve, the sleeve also being formed with apertures 23 which provide outlet ducts for chamber 4:.

In the operation of the device, the plunger in its upward movement will close inlet duct 22 and open outlet duct 23, after which operations the plunger will engage the nut or other contact member 15 on the end of rod 13 and the rod willthereupon be raised to successively unseat ball 12 and reseat it in conical seat 19 thus permitting a flow of liquid into the sleeve and immediately thereafter closing the sleeve against the admi e sion of fluid. The opening of outlet duct 223 permits the flow of liquid from chamber l, thence intermediate the elevated conical portion of the plunger and finally through the discharge end of the sleeve via a duct afforded by a depression 24 in the plunger. In the reverse movement of the plunger ball 12 is again moved by the pressure of spring 14 to its intermediate position and immediately thereafter drops to seat 11. The plunger in its continued movement, under the pressure of spring 25, closes, outlet duct 23 and opens inlet duct 22 so that chamber 4 is again filled with fluid from the reservoir in the sleeve intermediate block 9 and the plunger.

In the modification illustrated in the fragmentary view, Fig. 2 disk 17 is dispensed with, and hence the inlet valve is single-acting, the device in other respects being substantially the same as that illustrated in Fig. 1-.

Having described my improvements what I claim is:

1. In a dispensing valve, in combination, a casing, a sleeve within the casing, a chamber intermediate the sleeve and casing and provided with inlet and outlet ducts through said sleeve, a plunger disposed within the sleeve, a valve normally closing the sleeve against the admission of fluid, and a valve rod suspended from the valve, whereby the plunger in its inward movement will open and close the outlet and inlet ducts respectively, and engage the valve rod to open the said valve successively.

from the valve, a spring acting upon the valve rod to seat the valve, and a spring acting to maintain the plunger in its outer position, whereby the plunger in its inward movement will control the said ducts and valveto successively permit the flow of fluid from the first chamber and admit fluid into the second chamber.

3. In a dispensing valve, a casing and means for admitting fluid into and discharging fluid from said casing including a plug threaded in the inlet end of the casing and formed with an aperture enlarged on the upper face of the plug to form a valve seat, a ball in said seat, a rod depending from the ball, a plunger adapted to engage said rod and concentric springs engaging said plug, one spring acting upon the rod to seat the ball, and one spring acting to retract the plunger.

Signed at New York city, in the county of New York and State of New York, this 19th day of February. A. D. 1920.

LOUIS KOOPERSTEIN.

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