Shaped valve seats in displacement compressors

Details Shaped valve seats in displacement compressors Shaped valve seats in displacement compressors

2006-03-21

2006-03-21

Freay, Charles G. (Department: 3746)

Pumps

Expansible chamber type

Having pumping chamber pressure responsive distributor

C137S855000

Reexamination Certificate

active

07014433

ABSTRACT:
A valve assembly including a valve seat and a valve member movable relative to the valve seat between an open position and a closed position and defining in the closed position a high pressure side and a low pressure side, the valve member further being deformable to a deformed shape in the closed position, and the valve seat having a seat edge adapted to conform to the valve member in the deformed shape.

REFERENCES:
patent: 4580604 (1986-04-01), Kawaguchi et al.
patent: 5178183 (1993-01-01), Kim
patent: 5266016 (1993-11-01), Kandpal
patent: 5346373 (1994-09-01), Riffe
patent: 5655898 (1997-08-01), Hashimoto et al.
patent: 6116866 (2000-09-01), Tomita et al.
patent: 6309194 (2001-10-01), Fraser et al.
patent: 56138571 (1981-10-01), None
patent: 07110075 (1995-04-01), None

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