US2938530A - Dispensing valve - Google Patents

Description

y 1960 e. o. MATTER 2,938,530

ors snsmc VALVE Filed July 2, 1956 IN V EN TOR.

nited States Patent DISPENSING VALVE Gustave O. Matter, 3112 NE. 46th Ave., Portland, Oreg.

Filed July 2, 1956, Ser. No. 595,285

Claims. (Cl. 137-115) My invention relates to dispensing valves and in particular to pressure controlled and pressure actuated dispensing valves and includes means for controlling the operating pressure of such valves as shown in my Patent No. 2,233,818 dated March 4, 1941 and as shown in my pending application, Serial No. 412,008 filed February 23, 11954, to which reference may be made for a more detail description.

An object of this invention is to provide means whereby the pressure controlling the operation of the valve can be adjusted to suit the pressure counteracting the controlling presure and whereby this can be accomplished while the valve is operatively connected to the operating pressure and without disassembly of the valve.

Another object is to provide a bevel seat for the inlet valve without beveling the seat before assembling.

Further objects and advantages of the invention will appear in and from the following specification considered in connection with the accompanying drawings, which are for the purpose of illustration andnot intended as a definition of the invention, the invention being defined in the appended claims.

Referring to the drawings, in which like characters of reference indicate corresponding parts throughout the several views:

Fig. I is a vertical section of a dispensing valve, shown with its operating parts in position as when pressure in the supply chamber is less than the pressure in the dispensing chamber.

Fig. II is a section on line 11-11 of Fig. I.

Fig. III is a section through the inlet valve parts before assembly thereof.

Fig. IV is a section through the inlet valve parts after assembly thereof.

The dispensing valve as shown comprises a pressure fluid supply pipe 1 leading to a supply chamber 2, a dispensing chamber 3, a movable member 4 between .the supply chamber 2 and the dispensing chamber 3. The dispensing chamber is provided with an inlet valve 5 operatively connected, as by stem 6, to an outlet valve 7. The inlet valve 5 has its seat 8 in the movable member 4 and the outlet valve has its seat 9 on the inner end of outlet tube 10. Outlet tube 10' extends outward through the bottom wall 12 of the dispensing chamber 3. A compression spring 13 is positioned for operation between the movable member 4 and an adjusting nut 14 threaded to the outside of the inner end portion of outlet tube 19. A key 15 is secured on the inside of the body 11 and operates in keyway 16 in nut 14. The outlet tube 10 with outlet valve seat 9 are held in vertical position as by flange 17 on outlet tube 11 which flange rests on the inside of the bottom wall 12 of dispensing chamber 3. An inlet valve seat 8 is formed by the side of a hole 22 in the member 4. As shown in the drawings, the member 4 is clamped between top ring plate 18 and bottom plate 19 as by screws 20, and bottom plate 19 has a raised central portion 21 (see Fig. Ill),

Patented May 31, 196i) the outside diameter of which portion 21 is less than the inside diameter of ring plate 18 and the center of plate 19 and the raised portion 21 has an inlet opening 23 therethrough. The raised portion 21 forces the central portion of member 4 up and thereby causes the straight valve seat 8, shown in Fig. III, to become a bevel valve seat 8 as shown in Figs. I and IV which substantially conforms to the bevel or taper of valve 5.

When in use as a primer valve to replenish water evaporated from a floor drain trap to prevent sewer gases from escaping out of the floor drain, the supply pipe 1 is connected to a cold water supply line in the water supply system and the outer end portion of the outlet tube 10 is connected to the floor drain.

The pressure in the water mains in some cities varies in different locations of the city, for example in one city the maximum pressure in one location is 50 p.s.i. and the maximum in another location is p.s.i. with maximum pressures in other locations between these two. When the maximum pressure is once established in a location it does not exceed the established maximum.

In actual practice it has been discovered that a valve which can be adjusted to the pressure in the line after being installed in the line and even without knowing the line pressure is much more practical than if the adjustment need be made with the valve partly disassembled and the line pressure ascertained before adjustment can be made.

To adjust the spring pressure of the present valve to an unknown pressure in the supply chamber or supply line theprocedure is as follows:

After the valve is connected to the water supply line by pipe 1 with the Water at maximum pressure and assuming the thread in the nut 14 is R.H., the outlet tube 10 is turned clockwise until it stops and the nut 14 will be in its lower position and spring '13 will be least compressed and valve 7 will be on its seat 9 and water will be held in dispensing chamber 3. Then with all outlets in supply line closed turn outlet tube 10 counterclockwise thus forcing nut 14 up and thereby compressing spring 13 which in turn tends to raise member 4 and valve 5 against pressure in chamber 2. Outlet tube 10 is turned counterclockwise until the pressure caused by spring 13 raises outlet valve 7 from its seat 9 and water starts to drip out of outlet tube 10, then outlet 10 is turned clockwise approximately one half turn and the valve is then adjusted to operate at, the prevailing line pressure. Water will then enter the dispensing chamber 3 at the pressure to which the valve was adjusted and will dispense water from dispensing chamber 3 through outlet tube 10 when the pressure in supply chamber 2 is reduced, as by opening an outlet in the system, to less than the pressure to which the valve has been adjusted.

It will be apparent to those skilled in the art that many changes may be made in the above-described valve without departing from the essence of my invention.

Having described the invention, what is claimed as new 1. A dispensing valve adapted to be adjusted to the pressure of a line to which it is connected without removal from the line or disassembly of the valve, said valve comprising a hollow body having an inlet opening at its top for connection to a supply line and an outlet opening at its bottom, an outlet tube rotatably received in said outlet opening and having a lower end portion externally of and depending from said body and an upper portion within the hollow body, a movable member in said body spaced from and above said upper portion of the tube and dividing the interior of the hollow body into an upper supply chamber and a lower dispensing chamber, valve means interconnecting said chambers associated with and operated by movement of said movable member, and adjustable means normally urging said movable member into an uppermost position whereby said supply chamber is isolated from said dispensing chamber, said outlet tube having said upper portion threaded, said adjustable means including a nut received on said threaded upper portion of the outlet tube and engaging an inner surface portion of said body whereby said nut is held against rotation, and a spring seated at one end upon said nut and engaging, at its opposite end, said movable member, whereby upward pressure on said movable member may be varied by rotating the outlet member.

2. A dispensing valve comprising a body having a sup ply chamber and a dispensing chamber, a movable member between said chambers and having an opening therein, an inlet valve and an outlet valve for said dispensing chamber, said inlet valve and said outlet valve being operatively connected through said opening'in the movable member, said movable member and said inlet valve being relatively movable to effect seating and unseating of said inlet valve on the movable member to open and supply chamber, spring means acting upon said movable member normally urging the same against the action of fluid pressure within the supply chamber, an outlet tube leading from said dispensing chamber and having a portion accessible externally of said body, said outlet tube being movable relative to said body by manipulation thereof externally of the body, said outlet valve being movable into and out of closing relation to said outlet tube, movement of said movable member being actuated and controlled by pressure in said supply chamber and by the opposing pressure of said spring means, and means for altering the pressure exerted by said spring means on the movable member by movement of said outlet tube as etfected by manipulation thereof externallyof said body. a

3. A dispensing valve comprising a body having a supply chamber and a dispensing chamber, a movable member between said chambers and having an opening therein, an inlet valve and an outlet valve for said dispensing chamber, said inlet valve and said outlet valve being operatively connected through said opening in the movable member, said movable member and said inlet valve being relatively movable to effect seating and unseating of said inlet valve on the movable member to open and close said opening, a pressure fluid inlet leading to said supply chamber, spring means acting upon said movable member normally urging the same against the action of fluid pressure within the supply chamber, an outlet tube leading from said dispensing chamber and having a portion accessible externally of said body, said outlet tube being movable relative to said body by manipulation thereof externally of the body, said outlet valve being movable into and out of closing relation to said outlet tube, movement of said movable member being actuated and controlled by pressure in said supply chamber and by the opposing pressure of said spring means, means for altering the pressure exerted by said spring means on the movable member by movement of said outlet tube as effected by manipulation thereot externally of said body,

said means comprising an adjusting nut threadedly engaged on said tube and upon which said spring means is seated, said adjusting nut being fixed within said body to prevent rotation of the adjusting nut therewithin.

4. A dispensing valve comprising a body having a supply chamber and a dispensing chamber, a movable member between said chambers having'an opening therein, an inlet valve and an outlet valve for said dispensing chamber, said inlet valve and said outlet valve being operatively connected through said opening in the movable member, a pressure fluid inlet leading to said supply chamber, said movable member and said inlet valve being relatively movable to effect seating and unseating of said inlet valve on the movable member to open and close said opening, an outlet tube leading from said dispensing chamber, said outlet valve being movable into and out of closing relation to said outlet tube, means normally urging said movable member in opposition to fluid pressure within said supply chamber, a top ring plate having an opening therethrough of greater diameter than the opening in said movable member and surrounding the same, a bottom plate having a raised central portion of a diameter less than the diameter of the opening through said top ring plate and, in turn, having an openingtherethrough substantially coaxial with the opening through said movable member, said movable member being clamped between said top ring plate and said'bottom plate such that said raised portion of the bottom plate forces a portion of said movable member up to form a bevel seat for said inlet valve. 1

5. In a dispensing valve having a hollow body, a flexible diaphragm fixed within said body and dividing the interior of the same into a supply chamber and a dispensing chamber, said diaphragm having an opening therethrough, valve means within said body including an inlet valve having a stem projecting through said opening in the diaphragm and having ahead portion movable into and out of seating engagement with the edge of said diaphragm defining such opening, an annular top ring plate having its inner diameter greater than the opening through said diaphragm, a bottom plate having a raised portion of a diameter less than said inner diameter of the top ring plate and having an opening in the center of said raised portion aligned with said opening'in the diaphragm, said diaphragm being sandwiched between said top ring plate and said bottom plate with said opening in the bottom plate being aligned with the opening in said diaphragm so that said raised portion of the bottom plate forces that portion of the diaphragm surrounding said opening therein upwardly to form a bevel seat for said inlet valve.

References Cited in the file of this patent Ward Sept. 4,

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