Rotary expansible chamber devices – With mechanical sealing – Axially movable end wall or end wall portion
Reexamination Certificate
2011-08-09
2011-08-09
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
With mechanical sealing
Axially movable end wall or end wall portion
C418S131000, C418S152000, C418S259000, C418S268000, C073S118040
Reexamination Certificate
active
07993119
ABSTRACT:
A vane pump includes a motor, a rotor rotated by the motor, a first casing having a pump chamber accommodating the rotor and a first flat part in a periphery of an opening of the pump chamber, a second casing having a second flat part joined to the first flat part to gas-tightly or liquid-tightly close the opening of the pump chamber, an elastic sheet disposed between the second casing and the motor, and a screw penetrating the first casing, the second casing and the elastic sheet. The screw is configured to fasten and join the first casing, the second casing and the elastic sheet to the motor.
REFERENCES:
patent: 1780217 (1930-11-01), Sumner Wiltse
patent: 4050855 (1977-09-01), Sakamaki et al.
patent: 7234344 (2007-06-01), Inagaki et al.
patent: 7237432 (2007-07-01), Inagaki et al.
patent: 3-32185 (1991-03-01), None
patent: 2000-145655 (2000-05-01), None
JP 2000-145655 A—the English Translation.
Japanese Office Action dated Nov. 12, 2009, issued in corresponding Japanese Application No. 2007-314875, with English translation.
Amano Hitoshi
Kobayashi Mitsuyuki
Denso Corporation
Nixon & Vanderhye PC
Trieu Theresa
LandOfFree
Vane pump and vapor leakage check system having the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vane pump and vapor leakage check system having the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vane pump and vapor leakage check system having the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2766228