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. 21, 1976
Filed:
May. 15, 1975
Applicant:
Inventor:
Georg Hirmann, Zurich, C;
Assignee:
Inventa AG fur Forschung und Patentverwertung, Zurich, C;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ; F01C / ;
U.S. Cl.
CPC ...
91 59 ; 417295 ; 91180 ; 91504 ;
Abstract
Fluid motor means having a sectional housing containing a fluid flow passage therebetween is provided. The passage has a cross section which varies in response to load changes, along with means in the passage for varying the flow of pressure fluid to the motor in response to said load changes. Expansion or fluid chambers are preferably used to couple input and output members in a manner responsive to torque changes.