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:
Sep. 19, 2000
Filed:
Apr. 16, 1998
Applicant:
Inventor:
Willi Parsch, Bickenbach, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C / ; F03C / ;
U.S. Cl.
CPC ...
418133 ; 418174 ;
Abstract
A vane cell pump comprises a lifting ring forming at least one suction and one pressure chamber, a rotor movably arranged in the lifting ring and having radially movable vanes, and at least one pressure plate forming a lateral surface of the suction and pressure chamber, characterized in that the pressure plate (23, 25) is made of a near or hypo-eutectic aluminium alloy which contains silicon and which undergoes heat treatment.