Hydraulic driven diaphragm pump with mechanical diaphragm stroke limitation
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United States of America Patent
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May 4, 1999
Issued Date -
N/A
app pub date -
Jun 19, 1997
filing date -
Aug 19, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
For a hydraulically driven diaphragm pump with a diaphragm consisting of at least two individual layers, these layers are clamped at least in their central area between a coupling part on the feed area side and the hydraulics area side and are thus mechanically linked with one another. The coupling parts are also connected with a relay valve of a leak replenishment system which is attached in the pump body in a moveable manner.
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