The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2000
Filed:
Dec. 09, 1998
Applicant:
Inventor:
Sebastian Jager, Hannover, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C / ;
U.S. Cl.
CPC ...
418 48 ; 418178 ; 418153 ; 29888023 ;
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.