Method for making a moineau stator and resulting stator

Details Method for making a moineau stator and resulting stator Method for making a moineau stator and resulting stator

2005-03-29

2005-03-29

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Unlike helical surfaces on relatively wobbling rotating...

C418S179000, C418S001000, C072S276000, C029S888020

Reexamination Certificate

active

06872061

ABSTRACT:
The invention concerns a Moineau type gear pump stator (1), comprising a stator cavity with global axial extension inside an elongated body, characterised in that the stator cavity is defined by a rigid-walled metal tubular element (3) having internall the shape and dimensions of the stator cavity such that, when it is assembled with a rotor, a positive clearance with the rotor is obtained.

REFERENCES:
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patent: 4273521 (1981-06-01), Baker et al.
patent: 6162032 (2000-12-01), Jager
patent: 6241494 (2001-06-01), Pafitis et al.
patent: 6497030 (2002-12-01), Marando
patent: 6568076 (2003-05-01), Bottos et al.
patent: 491586 (1976-07-01), None
patent: 0003676 (1979-08-01), None
patent: 2756018 (1998-05-01), None
patent: 2794498 (2000-12-01), None

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