Fluid compressors
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United States of America Patent
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Jun 4, 1991
Grant Date -
N/A
app pub date -
Oct 31, 1989
filing date -
Nov 17, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluid compressor includes a plurality of compression stages each operated sequentially by drive means comprising a pneumatically operated drive piston operating in a drive cylinder. Several embodiments are described and illustrated having different forms of control means and drive and sequencing means for the drive pistons.
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