Pumps – Motor driven – Fluid motor
Patent
1998-04-10
2000-06-20
Yuen, Henry C.
Pumps
Motor driven
Fluid motor
417403, 417536, 417568, 92128, F04B 1700
Patent
active
060770538
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.
REFERENCES:
patent: 4169433 (1979-10-01), Crocker
patent: 4266468 (1981-05-01), Biggs
patent: 4334833 (1982-06-01), Gozzi
patent: 4380322 (1983-01-01), Budzich
Fujikawa Takao
Masuoka Itaru
Narukawa Yutaka
Sakashita Yoshihiko
Yuki Takahiro
Castro Arnold
Kabushiki Kaisha Kobe Seiko Sho
Yuen Henry C.
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