Valve body with integral seal retention groove

Details Valve body with integral seal retention groove Valve body with integral seal retention groove

2005-10-18

2005-10-18

Mar, Michael (Department: 3754)

Valves and valve actuation

Reciprocating valve

C251S367000, C277S316000, C277S437000, C137S015180

Reexamination Certificate

active

06955339

ABSTRACT:
A valve body has one or more integral seal retention grooves and one or more interior hollows which may be manufactured using frictional or other types of welding to join two previously formed portions through at least one cylindrical web. Forging or casting valve body portions to near-net-shape prior to joining minimizes machining necessary to achieve a final desired shape. One or more interior hollows and an integral seal retention groove are formed in the welded valve body from features present on the portions joined by welding to form the body. Increased valve durability and reduced metal wear arise from the reduced valve body weight and correspondingly reduced impact loading. An elastomeric seal may be cast and cured in place in a seal retention groove.

REFERENCES:
patent: 1705800 (1929-03-01), Akeyson
patent: 3090596 (1963-05-01), Gifford
patent: 4951707 (1990-08-01), Johnson
patent: 5088521 (1992-02-01), Johnson
patent: 5249600 (1993-10-01), Blume
patent: 5480163 (1996-01-01), Miser et al.
patent: 6435475 (2002-08-01), Blume
patent: 6679447 (2004-01-01), Jallot et al.

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