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:
Aug. 12, 2003
Filed:
Mar. 14, 2001
Applicant:
Inventors:
Willi Schneider, Bad Neustadt, DE;
Peter Jeschonnek, Feldkirchen-Westerham, DE;
Reiner Schmid, München, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 2/344 ;
U.S. Cl.
CPC ...
F04C 2/344 ;
Abstract
A positive-displacement pump including a rotating vane disposed within a pump housing. The rotating vane is driven by a rotating drive shaft and the rotating vane is radially displaceable relative to the drive shaft wherein the ends of the rotating vane carry sealing strips that adjoin an inner wall of the pump housing. At least one energy storage device is included for engaging the vane and holding the sealing strips in sealing contact with the housing.