US1573970A - Soap-dispensing apparatus - Google Patents

Description

Feb. 23 1926.

L. KOOPERSTEIN SOAP DISPENSING APPARATUS Filed April 5, 1925 patented Feb.

. UbllTEll STATES 1,573,970 PATENT orrica.

LOUIS KOOPERSTEIN, OF NEW YORK, N. Y., ASSIG'I-IOR TO WEST DISINFEGTING COM- PANY, 03: NEW YQRK, N. 1 A COPJPORATIOI'I OF NEW YORK.

SOAP-DISPENSING APPARATUS.

Application filed April 3, 1925.

ranged that the soap flows by gravity to the valve. The ob ect of the invention is to provide a simple type of apparatus of this nature, wherein all. of the valve members may as a single unit be assembled in and removed from the valve casing, and a double closure is provided by the valve element to prevent leakage from the reservoir through the valve.

The invention will be understood by reference to the accompanying drawing in which Figure 1 is a plan view of an embodi ment of the invention, and

Figure 2 is a fragmentary vertical section through the same, the valve members 39 being shown in detail.

Figure 3 is a transverse cross section on the line 3 3, Figure 2.

The embodiment of the invention illustrated in the drawing consists of a cylindrical container 1 for the liquid soap, the latter being provided with an intake 2 normally closed by a plug 3 which may be threaded in place or held by friction, as desired. The base of container 1 fits within a cup 1 formed as an upward extension of the valve body 5.

The valve body is fo med with a rear extension 6 merging into a bracket 7, the latter being adapted to be secured upon a wall or other vertical support 8.

The valve body 5 is formed with two longitudinal chambers 9 and 10, the latter being of the greatest diameter. Chamber 9 'connnunicates via opening 11 with the base oi container 1, which is open. so that the liquid soap may flow, by gravity, into said chamber. Chambers 9 and 10 are normally shut otl' one from the other by a piston 12, this piston being carried by one end of a push rod 3", the latter carrying a thumb piece 14. Push rod 13 is guided in its move- Serial No. 20,344.

ments by a block 15 which closely fits within chamber 10 and which is held in place by means of a plug 16 which is threaded within said chamber. lVithin chamber 10 and rearwardly of block 15 is a valve sleeve 17. Sleeve 17 is formed with a peripheral, centrally disposed, c.-annel 18 which communicates with a duct 19 leading to an inner circumferential channel 20 formed in the said sleeve.

Push rod 13 is formed with a duct 21, which, when the parts are at rest, has an inlet at the rear of channel 20 of valve sleeve 17 and an outlet in front of channel 20, both inlet and outlet being closed by the inner wall of said sleeve. Piston 12 is normally pressed against a washer 22 by means of a coiled spring 23 disposed within chamber 9. The valve body 5 is formed with a noz- 210 2 1 having an opening 25 which communicates with circumferential channel 18 formed in the valve sleeve 17.

In the operation of the device, rearward movement of push rod 13) will carry piston 12 rearwardly until its forward end is in advance of the wall a of opening 11, whereupon soap will flow in advance of the piston. In this position of the parts, soap would be permitted to flow directly from container 1 through the nozzle 25 were it not for the fact that the outlet of duct 21 is closed by the wall of valve sleeve 17 rearwardlv 0+ inner channel 20. lVhen the push rod is released, spring 18 will act upon piston 12, first, to close the opening in wall a and thence to force the soap rearwardly of the piston through duct 21, which is momentarily opened by coming into communication with channel 20, the soap thence passing into duct 19, channel 18, out of the nozzle opening 25.

While, for convenience of illustration, port 19 is shown immediately above the nozzle opening, this position of the parts is not required, in view of the provision of channel 21.

It will be seen that all of the valve elements are removable as a unit from the easing by retracting screw plug 16, and that wash r 22 may be expanded by screwing the plug inwardly. It will also be seen that the outlet 20 is maintained closed by the push rod except when an operation of the rod momentarily establishes communication be tween duct 21 and channel 20.

Various modifications may be made in-the embodiment of the invention herein, shown without departing from the spirit of the invention, what I claim and desire to secure by Letters Patent being as follows 1. In soap dispensing apparatus, a valve body, two longitudinally extending cham= bers formed in said valve body, a piston normally disposed between the two chambers, a spring acting upon said piston, a push rod formed with a duct having an inlet and an outlet at the longitudinal surface of the rod, said rod being connected to the piston, a valve sleeve in the second chamber and attording a guiding member for the push rod, said valve sleeve having a duct normally intermediate the inlet and outlet of the push rod duct, a nozzle in the valve body, and a communication between said nozzle and the valve sleeve duct.

2. In soap dispensing apparatus, a valve casing provided with two longitudinal chambers, the second chamber being of greater diameter than the fil'StCliitlllbet, a PISLOH eiisposed between the two chambers and normally shutting them off irom each other, a

push rod engaging the piston and formed with a duct having an inlet and an outlet on the outer surface of the rod, a valve sleeve within the second chamber and having a longitudinal aperture to receive the push rod said valve sleeve also having a duct extending transversely therethrough, a noz zle formed in the valve casing and communicating with the valve sleeve duct, and a screw plug threaded within said second chamber whereby the said valve elements may as a unit be secured within and removed from the casing.

3. In soap dispensing apparatus, a valve casing provided with two longitudinal chambers, a piston normally disposed between the two ehan'ibers, a push-rod formed with a duct having an inlet and an outlet in said rod, the said rod being connected in the piston, a valve sleeve surrounding said rod and the duct, a nozzle in the valve body, and

a communication between said nozzle and he valve sleeve duct.

In testimony whereof, I have signed my name to this specification.

LOUIS KOOPERSTEIN.

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