Rotary vane pump

Details Rotary vane pump Rotary vane pump

2005-03-23

2008-09-16

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Positively actuated vane

C418S148000, C418S149000, C418S268000, C310S103000, C310S104000, C417S420000

Reexamination Certificate

active

07425121

ABSTRACT:
A pump assembly (100) having a pump housing (206and208) and a rotor (222) rotatingly disposed within the housing, the rotor having a plurality of slots (226). The pump assembly includes a plurality of vanes (224), each vane moveably disposed in one of the plurality of slots, and an input shaft (228) coupled to the rotor for applying a torque to the rotor. The pump assembly (100) also includes a prime mover (400) for generating a torque and a magnetic coupling unit (300) for magnetically transferring the torque generated by the prime mover to the input shaft. The vanes may have a leg (256) which extends radially inward from a blade (254). The rotor and input shaft may be integrally formed.

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