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US 2003/0188785 A1Published application
Discharge valve
AssigneeGardner-Denver Company
InventorBerton L. Vicars
Life of this patent
Estimating the term…
Abstract
A discharge valve including a valve seat and a piston having a head with a bottom surface that is convex across its entirety for engaging the valve seat. The piston has a stem extending upwardly from the head away from the valve seat. A valve guide has a socket for slidably receiving the stem of the piston and a number of apertures intersecting the socket for providing pressure relief thereto. A compressed spring is disposed between the valve guide and the head for normally retaining said the in engagement with the valve seat.
Claims9
A discharge valve, comprising:
- a valve seat being a tube with open, top and bottom ends;
- a piston having a head with a bottom surface that is convex across its entirety for engaging said top end of said valve seat and a stem extending upwardly from said head away from said valve seat;
- a valve guide having a socket for slidably receiving therein said stem of said piston and a plurality of apertures intersecting said socket for providing pressure relief thereto;
- and,
- a compressed spring is disposed between said valve guide and said head for normally retaining said head in engagement with said valve seat.
2 more elements
A discharge valve, comprising:
- a valve seat being a tube with open, top and bottom ends and having an outwardly extending peripheral flange at said top end, said top end sloping downwardly and inwardly toward the center of said valve seat and said bottom end sloping upwardly and inwardly;
- a piston having a head with a bottom surface that is convex across its entirety for engaging said top end of said valve seat and a stem extending upwardly from said head away from said valve seat;
- a valve guide including:
- a plug having a circumferential flange projecting outwardly from the top thereof;
- a conical prop projecting downwardly from said plug;
- a socket extending upwardly through said prop and partially through said plug;
- and,
- a plurality of apertures traversing said plug and intersecting said socket for providing pressure relief thereto;
- and,
- a compressed spring is disposed between said valve guide and said head for normally retaining said head in engagement with said valve seat.
7 more elements
A discharge valve, comprising:
- a valve seat being a tube with open, top and bottom ends and having an outwardly extending peripheral flange at said top end;
- a piston having a head with a bottom surface that is convex across its entirety for engaging said top end of said valve seat and a stem extending upwardly from said head away from said valve seat;
- a valve guide including:
- a plug having a circumferential flange projecting outwardly from the top thereof;
- a conical prop projecting downwardly from said plug;
- a socket extending upwardly through said prop and partially through said plug;
- and,
- a plurality of apertures traversing said plug and intersecting said socket for providing pressure relief thereto;
- and,
- a compressed spring is disposed between said valve guide and said head for normally retaining said head in engagement with said valve seat.
7 more elements
Dependencies are inferred from the claim text.