Low input torque rotor for vane pump

Details Low input torque rotor for vane pump Low input torque rotor for vane pump

2004-09-17

2008-12-23

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Positively actuated vane

C418S151000, C418S152000, C418S178000

Reexamination Certificate

active

07467935

ABSTRACT:
A vane-type fluid displacement unit having a housing, a drive shaft extending through the housing, a rotor secured to the drive shaft and disposed within the housing, the rotor having at least one non-smooth top or bottom surface, and at least one vane secured to the rotor.

REFERENCES:
patent: 2004563 (1935-06-01), Bogoslowsky
patent: 2781000 (1957-02-01), Thomas et al.
patent: 3102520 (1963-09-01), Schlor
patent: 4198195 (1980-04-01), Sakamaki et al.
patent: 4820140 (1989-04-01), Bishop
patent: 5560741 (1996-10-01), Edwards
patent: 6503064 (2003-01-01), Croke et al.
patent: 7037093 (2006-05-01), Jong
patent: 1239115 (2002-09-01), None
patent: 53058807 (1978-05-01), None
patent: 05-058888 (1993-05-01), None
patent: 2003222089 (2003-08-01), None
patent: WO02062459 (2002-08-01), None

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