Gas pressure regulator
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United States of America Patent
Stats
-
Apr 16, 1996
Grant Date -
N/A
app pub date -
Jan 27, 1995
filing date -
Jun 23, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The regulator comprises a piston (13) comprising a hollow rod (21) extending through an internal partition (6) delimiting a high pressure chamber (3) and an internal chamber (5) and coacting with a valve seat (24) disposed in the high pressure chamber (3) and carried by a closure member (25) mounted in one end (2) of the regulator body. The internal chamber (29) communicates with a lateral chamber (9) formed externally by a membrane (10), the two chambers (9 and 5) being filled with an incompressible fluid (29), typically a silicone oil, transmitting to the piston (13) the ambient pressure. The regulator is useful in respiratory equipment for divers, particularly for divers in cold water.
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