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:
Nov. 20, 1990
Filed:
Dec. 19, 1988
Applicant:
Inventors:
Hans Mezger, Freiberg, DE;
Dieter Zaremba, Muehlacker, DE;
Assignee:
Porsche AG, , US;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64D / ; F16D / ; B64C / ;
U.S. Cl.
CPC ...
60337 ; 60339 ; 60357 ; 60358 ;
Abstract
A disengageable connection between an internal combustion engine and a propeller which serves for the drive of a gyroplane. The disengageable connection is a fluid coupling which includes a controllable oil circulatory system. The fluid coupling is supplied with oil by way of the oil circulatory system during the operation of the internal combustion engine. By contrast, the oil escapes out of the fluid coupling when the propeller operates under auto-rotation.
Mezger, Hans. (1990). Fluid coupling for helicopter propeller (U.S. Patent No. 4970860). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4970860
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile