Folding leaf valve and method of making

Details Folding leaf valve and method of making Folding leaf valve and method of making

1989-06-23

1990-06-05

Chambers, A. Michael

Fluid handling

Processes

Cleaning, repairing, or assembling

137315, 137855, 604256, 2511491, 623 8, F16K 1500

Patent

active

049305352

ABSTRACT:
A leaf valve folds upon itself to provide positive sealing of a pressurized chamber under a variety of pressure conditions. In particular, the valve stem folds to effectively close the lumen and provide a positive seal even at low differential pressure. A method of making the valve is descirbed.

REFERENCES:
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patent: 2516578 (1950-07-01), Kreiner
patent: 2700980 (1955-02-01), Andrews
patent: 3410300 (1968-11-01), Mondano
patent: 4143853 (1979-03-01), Abramson
patent: 4387879 (1983-06-01), Tauschinski
patent: 4416267 (1983-11-01), Garren et al.
patent: 4589869 (1986-05-01), Wernborg
patent: 4626245 (1986-12-01), Weinstein
patent: 4662883 (1987-05-01), Bell et al.
patent: 4694827 (1987-09-01), Weiner et al.
patent: 4775379 (1988-10-01), Fogarty et al.

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