Piston type gas compressor
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United States of America Patent
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-
Jun 20, 2000
Grant Date -
N/A
app pub date -
Apr 10, 1998
filing date -
Apr 10, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
It is intended to provide a piston type gas compressor capable of replacing a seal ring of a piston with a new one while preventing incorporation of metallic particles into a processing gas. A gas suction port 9 and a gas discharge port 10 are formed in a flange 2 of a cylinder 3 in communication with a gas compressing space H. With a plug 7 removed from an internally threaded hole 6A, a free piston 5, together with a seal ring 4, can be inserted into and removed from the cylinder 3 through the internally threaded hole 6A.
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