Compressor, method for manufacturing the compressor,...

Pumps – Motor driven – Electric or magnetic motor

Reexamination Certificate

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C418S100000, C418S248000

Reexamination Certificate

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07837449

ABSTRACT:
There is provided a rotary compressor capable of preventing deterioration of performance following plug fixing carried out to prevent falling-off of a spring member. The rotary compressor comprises a cylinder constituting a rotary compression element, a roller engaged with an eccentric portion formed in a rotary shaft of an electric element, and eccentrically rotated in the cylinder, a vane abutted on the roller to divide an inside of the cylinder into a low pressure chamber side and a high pressure chamber side, a spring member for always pressing the vane to the roller side, a housing portion of the spring member, formed in the cylinder, and opened to the vane side and a hermetically sealed container side, a plug positioned in the hermetically sealed container side of the spring member, and inserted into the housing portion to fit into a gap, and an O ring attached around the plug to seal a part between the plug and the housing portion. In this case, a space between the cylinder and the hermetically sealed container is set smaller than a distance from the O ring to an end of the plug on the hermetically sealed container side.

REFERENCES:
patent: 601854 (1898-04-01), Bellens
patent: 1153478 (1915-09-01), Meyer
patent: 3026021 (1962-03-01), Emanuel
patent: 4331002 (1982-05-01), Ladusaw
patent: 4780067 (1988-10-01), Suzuki et al.
patent: 5242280 (1993-09-01), Fujio
patent: 5322424 (1994-06-01), Fujio
patent: 61-106992 (1986-05-01), None
patent: 2-294586 (1990-12-01), None
patent: 5-256285 (1993-10-01), None
patent: 8-93671 (1996-04-01), None
patent: 8-247065 (1996-09-01), None
patent: 2000-104690 (2000-04-01), None
patent: WO 01/73293 (2001-10-01), None
European patent office communication dated Dec. 23, 2002.
European patent Office communication dated Mar. 28, 2003.

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