Folding leaf valve and method of making
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United States of America Patent
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-
Jun 5, 1990
Issued Date -
N/A
app pub date -
Jun 23, 1989
filing date -
May 14, 1987
priority date (Note) -
Expired
status (Latency Note)
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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.
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Cited Art Landscape
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