Pump

Details Pump Pump

2011-04-12

2011-04-12

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Positively actuated vane

C418S015000, C418S028000, C418S238000, C418S268000

Reexamination Certificate

active

07922469

ABSTRACT:
A pump, for example, a vane-cell pump or a roll-cell pump, especially a gear pump, includes a two-stroke pump contour which includes at least one rise zone, at least one large circular area, at least one fall zone and at least one small circular area. The pump includes a rotor with radially displaceable vanes or rolls arranged in radial slits inside the pump contour.

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patent: 5975868 (1999-11-01), Agner
patent: 6164928 (2000-12-01), Agner
patent: 6244830 (2001-06-01), Agner
patent: 6817847 (2004-11-01), Agner
patent: 1 011 284 (1957-06-01), None
patent: 43 27 106 (1995-02-01), None
patent: 197 10 378 (1998-03-01), None
patent: 100 27 990 (2001-12-01), None

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