US2240102A

US2240102A - Automatic pressure valve

Info

Publication number: US2240102A
Application number: US322828A
Authority: US
Inventors: Andre F Textor
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-03-07
Filing date: 1940-03-07
Publication date: 1941-04-29
Anticipated expiration: 1958-04-29

Description

April 29, 1941. A, F TEX-Tc'm 2,240,102

AUTOMATIC PRESSURE VALVE Filed March '7, 1940 Patented Apr. 29, 1941 UNITED STATES PATENT OFFICE AUTOMATIC PRESSURE VALVE Andr F. Tester, Sussex, N. J.

Application March 7, 1940, Serial No. 322,828

8 Claims.

This invention relates to an automatic pressure valve for flushing tanks, and it is a particular object of the invention to provide a valve of this kind having means whereby is prevented siphoning of the water out from the tank.

It is also an object of the invention to provide a valve of this kind which in its operation is under control of a diaphragm and wherein flow of water into the tank is stopped when the water within the tank reaches a predetermined level.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved automatic pressure valve whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompany drawing,

wherein: I

Figure 1 is a fragmentary view partly in section and partly in elevation illustratinga valve constructed in accordance with an embodiment of my invention; I

Figure 2 is a sectional view taken substantially on the line 2-2 of. Figure 1;

Figure 3 is a fragmentary detailed sectional view taken substantially on the line 33 of Figure 2.

As disclosed in the accompanying drawing, i

denotes the bottom of a flush tank of any desired capacity and extending upwardly within the tank from its bottom wall I and suitably anchored thereto is the feed pipe 2. This pipe 2 is coupled to any suitable source of water supply under pressure.

Suitably carried by the upper end portion of the pipe 2 is a housing H herein disclosed as in close simulation of a semi-sphere with the rounded surface upwardly disposed. This housing H [comprises two sections 3 and 4 tightly held one to the other by suitable clamping means as generally indicated at 5. These sections 3 and 4 when in assembly effectively hold a diaphragm 6 which intersects the housing H whereby the in which is threaded or otherwise engaged a.

movable plate II. This plate H at its center has disposed therethrough an opening l2 which is defined at one side of the plate by a depending flange H, the outer or free edge of which provides a seat for the disk valve Hi. This valve [5 is carried by the lower end portion of a stem l6 which is directed through the opening l2 and the upper end portion of the stem l6 carries a second valve member I! in the form of an inverted cup.

The pressure of the water through the pipe 2 serves to maintain the valve l5 normally in engagement with its seat and at the same time maintains the upper valve member l'l in close contact from below with the diaphragm 6. The central portion of the diaphragm 6 has engaged therewith from below a relatively large metallic plate [8 to stiffen the diaphragm in a conventional manner.

The bottom wall of the section 4 of the housing H is provided with a downwardly tapered sleeve portion is with which the upper portion of the pipe 2 is directly engaged. The bottom wall of the lower section 4 of the housing H is provided with a radially disposed port 20 in communication with the upper part of the sleeve [9 and which is continued, as at 2|, through the registering lugs 22 and 23 extending outwardly from the sections 4 and 3 respectively of the housing H.

The bore within the upper lug 23 is reduced in diameter to provide an internal valve seat 25 and said bore of the upper lug 23 above the valve seat 25 is in communication with the section 3 of the housing H above the diaphragm 6 through the bypass 26.

Coacting with the valve seat 25 is a valve member 21 which is freely movable within the bore of the lug 23 and this valve member 21 is carried by a stem 28 which extends upwardly through the top or closed end of the bore of the lug 23. This stem 28 is operatively connected, as at 29, with a float arm 30. This float arm 30 is operatively supported at one end portion; as

- at 3|, for up and down swinging movement by the outstanding member 32 carried by the lug 23 of the upper section 3. The outer or free endportion of the arm 30 carries a float 33 of any preferred type.

The bottom wall of the lower section 4 is pro-- vided with a suitably positioned opening 34 with which is suitably engaged a depending discharge pipe 35.

The upper section 3 of the housing H at a desired point therealong is provided with an outstanding vent 36 andv the flow through such vent 36 is controlled by the valve member 3! herein disclosed as a screw threading through the wall of the vent 36. The adjustment of this valve member or screw 3'! is to regulate or control the time required for building up the requisite pressure Within the upper section 3 of the housing H to operate the diaphragm E to move the valve member [5 into open position.

Upon the emptying of the tank the float 33 with the arm 30 will swing downwardly adjusting the valve 31 into open position whereupon the water will flow through the port and its continuance 2| through the lugs 23 and through the by-pass 26 into the chamber 1. As the pressure builds up within the chamber I the diaphragm 5 will be flexed with the resultant opening of the valve member I5 whereupon the water will flow from the pipe 2 through the opening I 2 and out through the opening 34 and pipe 3'5 into the tank. As the water level within the tank rises, the float 33 and the arm will move upwardly and when the desired water level is reached within the tank, the valve member 27 will be brought into closed position with respect to its seat whereupon the pressure of the water will return the valve member IE to its closed position. In this action any excess water within the chamber 8 will drain out through the vent 36 and the time for such draining will, of course, depend upon the adjustment of the valve member or screw 21.

In the event of water being drawn from the water supply below the valve member l5, as for example from a water faucet in the water supply line, there would be a tendency of such discharge or flow of the water to create a suction which would result in the opening of the valve member l5 and the siphoning out of the water within the tank. However, in the present instance any such siphoning action is eliminated due to the fact that the suction down through the pipe 2 will pull the member l5 away from its seat and drop the valve member I! into closed position and thereby prevent any retrograde flow down through the opening I2.

The bottom of the chamber 8 is provided with a desired number of upstanding fingers to limit the fiexure of the diaphragm 6 after such diaphragm has been forced down sufficiently to allow the valve member IE to be moved into open position.

It is also of advantage to have the upper section 4 of the housing H of a dome shape to facilitate the trapping of air therein so that when the valve 21 closes the air will expand slowly thus eliminating the shock of stopping the water too quickly in the water line.

From the foregoing description it is thought to be obvious that an automatic pressure valve constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim:

1. A valve mechanism of the class described comprising a vertically disposed supply pipe for communication with a source of water supply under pressure, a housing carried by the upper end portion of the pipe, a diaphragm intersecting the housing and dividing the same into an upper chamber and a lower chamber, the bottom of the lower chamber having an opening affording communication with the pipe, a valve member coacting with the lower end of said opening and maintained in closed position by the pressure of the water passing up through the pipe, said housing having a port in communication with the pipe and with the upper chamber of the housing, said port having an internal valve seat, a float controlled valve member coacting with said internal seat for closing the flow of water through the port to the upper chamber, the lower chamber of the housing having a discharge, and

means movable with the first valve member for preventing retrograde flow through the pipe.

2. A valve mechanism of the class described comprising a vertically disposed supply pipe for communication with a source of water supply under pressure, a housing carried by the upper end portion of the pipe, a diaphragm intersecting the housing and dividing the same into an upper chamber and a lower chamber, the bottom of the lower chamber having an opening affording communication with the pipe, a valve member coacting with the lower end of said opening and maintained in closed position by the pressure of the water passing up through the pipe, said housing having a port in communication with the pipe and with the upper chamber of the housing, said port having an internal valve seat, a float controlled valve member coacting with said internal seat for closing the flow of water through the port to the upper chamber, the lower chamber of the housing having a discharge, and means carried by the first valve member for preventing water siphoning out through the pipe as a result of suction created in such pipe.

3. A valve mechanism of the class described comprising a vertically disposed supply pipe for communication with a source of water supply under pressure, a housing carried by the upper end portion of the pipe, a diaphragm intersecting the housing and dividing the same into an upper chamber and a lower chamber, the bottom of the lower chamber having an opening affording communication with the pipe, a valve member coacting with the lower end of said opening and maintained in closed position by the pressure of the water passing up through the pipe, said housing having a port in communication with the pipe and with the upper chamber of the housing, said port having an internal valve seat, a float controlled valve member coacting with said internal seat for closing the flow of water through the port to the upper chamber, the lower chamber of the housing having a discharge, and means carried by the first valve member for preventing retrograde fiow through the pipe, the upper chamber of the housing having a vent in communication therewith.

4. A valve mechanism of the class described comprising a vertically disposed supply pipe for communication with a source of water supply under pressure, a housing carried by the upper end portion of the pipe, a diaphragm intersecting the housing and dividing the same into an upper chamber and a lower chamber, the bottom of the lower chamber having an opening affording communication with the pipe, a valve member coacting with the lower end of said opening and maintained in closed position by the pressure of the water passing up through the pipe, said housing having a port in communication with the pipe and with the upper chamber of the housing, said port having an internal valve seat, a float controlled valve member coacting with said internal seat for closing the flow of water through the port to the upper chamber, the lower chamber of the housing having a discharge, means carried by the first valve member for preventing retrograde flow through the pipe, the upper chamber of the housing having a vent in communication therewith, and means for regulating flow out through the Vent.

5. A valve mechanism of the class described comprising a vertically disposed supply pipe for communication with a source of Water supply under pressure, a housing carried by the upper end portion of the pipe, a diaphragm intersecting the housing and dividing the same into an upper chamber and a lower chamber, the bottom of the lower chamber having an opening affording communication with the pipe, a valve member coacting with the lower end of said opening and maintained in closed position by the pressure of the water passing up through the pipe, said housing having a port in communication with the pipe and with the upper chamber of the housing, said port having an internal valve seat, a float controlled valve member coacting with said internal seat for closing the fiow of water through the port to the upper chamber, the lower chamber of the housing having a discharge, means carried by the first valve member for preventing retrograde flow through the pipe, and means for limiting the flexing movement of the diaphragm toward the bottom of the lower chamber.

6. A valve mechanism of the class described comprising a vertically disposed supply pipe for communication with a source of water supply under pressure, a housing carried by the upper end portion of the pipe, a diaphragm intersecting the housing and dividing the same into an upper chamber and a lower chamber, the bottom of the lower chamber having an opening aifording communication with the pipe, a valve member coacting with the lower end of said opening and maintained in closed position by the pressure of the water passing up through the pipe, said housing having a port in communication with the pipe and with the upper chamber of the housing, said port having an internal valve seat, a float controlled valve member coacting with said internal seat for closing the flow of water through the port to the upper chamber, the lower chamber of the housing having a discharge, a valve member within the lower chamber and contacting from below with the diaphragm, said third valve member being connected with the first valve member for unitary movement therewith, the third valve member coacting with the opening in the bottom of the lower chamber, said third valve member being in open position when the first valve member is in closed position and vice versa.

7. A valve mechanism of the class described comprising a vertically disposed supply pipe for communication with a source of water supply under pressure, a housing carried by the upper end portion of the pipe, a diaphragm intersecting the housing and dividing the same into an upper chamber and a lower chamber, the bottom of the lower chamber having an opening affording communication with the pipe, a valve member coacting with the lower end of said opening and maintained in closed position by the pressure of the water passing up through the pipe, said housing having a port in communication with the pipe and with the upper chamber of the housing, said port having an internal valve seat, a float controlled valve member coacting with said internal valve seat for closing the flow of Water through the port to the upper chamber, the lower chamber of the housing having a discharge, and a third valve member coacting with the upper end of the opening in the bottom of the lower chamber for preventing retrograde flow through the p pe.

8. A valve mechanism of the class described comprising a vertically disposed supply pipe for communication with a source of water supply under pressure, a housing carried by the upper end portion of the pipe, a diaphragm intersecting the housing and dividing the same into an upper chamber and a lower chamber, the bottom of the lower chamber having an opening afiording communication with the pipe, a valve member coacting with the lower end of said opening and maintained in closed position by the pressure oi the water passing up through the pipe, said housing having a port in communication with the pipe and with the upper chamber of the housing, said port having an internal valve seat, a float controlled valve member coacting with said internal valve seat for closing the flow of water through the port to the upper chamber, the lower chamber of the housing having a discharge, a third valve member coacting with the upper end of the opening in the bottom of the lower chamber for preventing retrograde flow through the pipe, a stem connecting the first valve member and the third valve member for unitary movement, said stem being disposed through the opening in the bottom of the lower chamber, said stem being of a length to have the third valve member in open position when the first valve member is in closed position and vice versa.

ANDRE F. TEXTOR.