Method of producing elastomeric stators for eccentric spiral pum

Details Method of producing elastomeric stators for eccentric spiral pum Method of producing elastomeric stators for eccentric spiral pum

1998-12-09

2000-12-12

Denion, Thomas

Rotary expansible chamber devices

Unlike helical surfaces on relatively wobbling rotating...

418178, 418153, 29888023, F04C 500

Patent

active

061589888

ABSTRACT:
The method of producing an elastomeric stator, and a stator produced by such method are provided. On its outside, the stator has a metallic spiral body, the shape of which corresponds to that of a hollow pump chamber. Elastomeric material is injected into a mold that contains the spiral body in order to form an elastomeric lining of the body. The elastomeric materials are introduced into the mold in such a way that the outer surface of the elastomeric lining merely rests against the spiral body and is not bonded or otherwise fixedly connected thereto.

REFERENCES:
patent: 5171139 (1992-12-01), Underwood et al.
patent: 5318416 (1994-06-01), Hantschk et al.
patent: 5759019 (1998-06-01), Wood et al.

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