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. 24, 1994
Filed:
Feb. 05, 1993
Applicant:
Inventor:
Yoshimi Yamamoto, Shizuoka, JP;
Assignee:
Fuji Kiko Company, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C / ; F16D / ;
U.S. Cl.
CPC ...
464 11 ; 464128 ; 464136 ;
Abstract
A structure of a universal joint is disclosed in which an end surface of a spider is coated with a solid lubricant and a projection having an arc cross section formed on a center of a bearing cup into which the spider is fitted is brought into point contact with the solid lubricant coated end surface of the spider. When the spider is axially rotated, the friction generated on the bearing cup can be remarkably reduced.