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. 10, 1976
Filed:
Jul. 14, 1975
Applicant:
Inventor:
Georg Hirmann, Zurich, CH;
Assignee:
Inventa AG fur Forschung und Patentverwertung Zurich, Zurich, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B / ;
U.S. Cl.
CPC ...
91472 ; 91497 ; 92 122 ; 92 71 ; 92 92 ; 91180 ;
Abstract
Hydraulic and pneumatic motors having expansion chambers arranged between two supporting means, at least one of which is rotatable, said chambers formed at least in part of material that is elastically deformable by the pressure medium used, are provided. The invention also provides a control system for introducing the pressure medium into the chambers sequentially and expelling it sequentially after each chamber has attained maximum volume.