Diaphragm valve for cryogenic applications
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United States of America Patent
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-
Jun 9, 1998
Issued Date -
N/A
app pub date -
Feb 17, 1995
filing date -
Jun 8, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A diaphragm valve for use with cryogenic systems controls the flow of cryogen and is capable of operating at high pressures for extended periods of time. The diaphragm consists of a polyamide film sandwiched between to manifold sections. A pilot valve controls the pressure of cryogen against one face of the diaphragm to open and close the diaphragm.
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