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:
May. 19, 1981
Filed:
Aug. 27, 1979
Applicant:
Inventor:
Hans Schwarz, Umiken, CH;
Assignee:
BBC Brown, Boveri & Co., Ltd., Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ;
U.S. Cl.
CPC ...
74128 ; 74575 ;
Abstract
Apparatus for rotating a shaft of a turbine is disclosed. This apparatus includes a ratchet wheel which is connected to the shaft, and a pawl which engages the teeth of the ratchet wheel. The teeth of the ratchet wheel have bearing surfaces with convex curvatures, while the pawl has a contact surface which also has a convex curvature.