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:
Mar. 23, 1982
Filed:
Dec. 18, 1979
Applicant:
Inventor:
Geoffrey J Humphrey, Yeovil, GB;
Assignee:
Westland Aircraft Limited, Yeovil, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
64 25 ; 64 / ; 192 46 ;
Abstract
A freewheel coupling for drivingly connecting co-axial driving and driven shafts includes preventer means adapted to automatically prevent engagement except when the speed of rotation of the driving and driven shafts is substantially synchronized. The preventer means comprises a ball bearing having a ball race located in circumferential trackways in inner and outer races attached respectively to first and second coupling parts, and having a plurality of slots extending laterally from one of the trackways so as to permit relative axial movement of the coupling parts by movement of the balls of the ball race in the slots.