Automatic membrane drain device for pneumatic circuits
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United States of America Patent
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May 8, 1990
Grant Date -
N/A
app pub date -
Jul 27, 1988
filing date -
Jul 28, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides an automatic drain device with membrane for pneumatic circuits. A flexible membrane (11) which separates the opening (2) of a jar (1) from a drain pipe (6) is precurved in a top position against this opening and against a skull-cap (8) against which it bears, which skull-cap then closes a communication orifice (14) provided on one side of the membrane. Under the action of the pressure in the jar, the membrane moves down to come to bear against a discharge end-piece (5) freeing, during this movement, orifice (14) and making drainage possible.
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