Diaphragm valves
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 9, 1980
Grant Date -
N/A
app pub date -
Feb 13, 1978
filing date -
Jul 4, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A spring biased diaphragm valve having circular beads on the diaphragm one of which seats against and within the seat and the other surrounding the spring.
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Cited Art Landscape
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