Rotating bonded valve assembly

Details Rotating bonded valve assembly Rotating bonded valve assembly

2005-08-22

2009-06-16

Rivell, John (Department: 3753)

Fluid handling

Line condition change responsive valves

Direct response valves

C137S516290, C251S337000

Reexamination Certificate

active

07546849

ABSTRACT:
Apparatus and methods for constructing a valve assembly comprising an anti-friction ring. The anti-friction ring allows a closure member in the valve assembly to more freely rotate during operation of the valve assembly. Consequently, the closure member strikes a sealing member in different rotational positions during repetitive cycling of the valve assembly.

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