Double diaphragm pump
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United States of America Patent
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-
Jun 29, 1993
Grant Date -
N/A
app pub date -
Sep 30, 1991
filing date -
Oct 8, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A double diaphragm pump having diaphragms connected by a coupling rod and separating two diaphragm chambers, a control spool displaceable in dependence on the position of the diaphragms, with closure means for alternate freeing and closing control passages arranged in a control spool housing for alternate pressurizing and relieving of a driving medium chamber with driving medium, and an actuating member coupled with the diaphragm movement and magnetically with the control spool.
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Cited Art Landscape
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