Gas compressor head and discharge valve construction
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United States of America Patent
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-
Apr 20, 1993
Issued Date -
N/A
app pub date -
Oct 15, 1991
filing date -
Jun 1, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A single or multi-cylinder compressor unit being cylinder wall ported and having suction inlet means to compression chamber means through the wall and top of piston means, wherein suction valve means comprises preferably a light-weight plastic disc means mounted in an essentially free-floating manner in the piston means top, the discharge valving cooperatively comprises discharge porting plate means and discharge valve disc means reciprocably mounted on bearing means in the compressor head for enhanced operating accuracy and seat longevity and adapted to seal discharge port aperture means in the plate means on the suction stroke, and wherein the piston means top, the compression side of the suction valve disc means, the compression side of the porting plate means, and the compression side of the discharge valve disc means all being adapted to lie substantially in the same plane at the apex of the compression stroke to essentially eliminate gas reexpansion.
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