Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1997-09-08
1999-07-20
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Direct response valves
137844, 137847, F16K 1514
Patent
active
059244526
ABSTRACT:
A valve assembly for permitting fluid flow in a first direction and for preventing fluid flow in a second direction opposite to the first direction. The valve assembly includes an upper housing, a lower housing coupled to the upper housing to form a generally axially extending housing assembly, and a valve seating section defined within an inner peripheral portion of the lower housing. The valve seating section includes an axially extending inner peripheral surface and a transversely extending surface substantially normal to the axially extending inner peripheral surface. A valve member is seated within the valve seating section of said lower housing. The valve member includes a flange that extends from the valve member in a transverse direction and defines an axially oriented outer peripheral surface thereof. The valve member is retained within the valve seating section of the lower housing by the axially extending inner peripheral surface of the valve seating section transversely compressing the axially oriented outer peripheral surface of the flange to form a press-fit therebetween. Further, the valve member also includes a lower transverse surface which is axially separated from the transversely extending surface of the valve seating section, in which an air space is defined between these two transverse surfaces.
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Corbin Sarah L.
Daniels, Jr. Lewis E.
Richardson James C.
Szpara Edward
Baxter International Inc.
Buonaiuto Mark J.
Ferensic Denise L.
Kim Joanne Y.
Kowalik Frances C.
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