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:
Jan. 30, 1979
Filed:
Jul. 25, 1977
Hiroji Okuda, Nara, JP;
Koyo Seiko Company Limited, Osaka, JP;
Abstract
Fitting yokes are coupled each by a universal joint of the trunnion type to the opposite ends of a shaft assembly biased for axial extension. Each of the fitting yokes has a sleeve inserted in a center bored portion of the universal joint with a clearance formed therebetween to permit relative angular displacement between the axis of the shaft assembly and the axis of the fitting yoke. The drive shaft therefore has a greatly reduced length in its entirety. The shaft assembly includes a splined portion adapted to permit collapsing and extension of the assembly and circumferentially covered with a sleeve-shaped cover. The cover defines an interior space holding a lubricant to lubricate the spline portion for sliding movement.