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:
Apr. 08, 2003
Filed:
May. 11, 2001
Applicant:
Inventor:
Bruno Kaechele, Weilheim/Teck, DE;
Assignee:
Wilhelm Kaechele GmbH Elastomertechnik, Wilhelm/Teck, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01C 1/10 ;
U.S. Cl.
CPC ...
F01C 1/10 ;
Abstract
A rotor ( ) for an eccentric screw pump or a subsurface drilling motor consists of a straight, essentially cylindrical core element ( ), onto which a shell ( ) is forged by a cold-forging process. The forging gives the shell ( ) the helical external form required for eccentric screw pumps ( ). The rotor ( ) described can be produced by non-cutting shaping, which is of considerable advantage in particular in the case of large rotor dimensions, since no waste material is produced.
Kaechele, Bruno. (2003). Worm for an eccentric screw pump or a subsurface drilling motor (U.S. Patent No. 6544015). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6544015
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile