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:
Sep. 12, 1978
Filed:
Jul. 15, 1977
Applicant:
Inventors:
Hiroji Okuda, Nara, JP;
Shigenori Harada, Kashiharashi, JP;
Assignee:
Koyo Seiko Company Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
64 23 ; 64 / ; 403166 ;
Abstract
A shaft member connected to a drive fitting yoke by a joint member is splined to a shaft member connected to a driven fitting yoke by a joint member. A spring accommodated in a hollow chamber continuously extending through the shaft members axially biases the shaft members away from each other. Limiting means for limiting the maximum length of extension of the shaft members prevents the spring from exerting a thrust load on the drive shaft element and driven shaft element interconnected by the drive shaft. The spline coupling portion has an increased diameter to ensure the strength of the drive shaft.