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:
Aug. 26, 2008
Filed:
Nov. 28, 2003
Akihiro Shoda, Gunma-ken, JP;
Yasuhisa Yamada, Gunma-ken, JP;
Akihiro Shoda, Gunma-ken, JP;
Yasuhisa Yamada, Gunma-ken, JP;
NSK Ltd., Tokyo, JP;
Abstract
According to the present invention, a rolling elementfor rotating upon relative movement of both shaftsandin the axial direction is disposed between three pairs of axial groovesandwhich are formed on the outer peripheral surface of the male shaftand on the inner peripheral surface of the female shaft, respectively, a raceway surface elementwhich is in contact with the rolling elementand an elastic memberfor pressurizing the rolling elementagainst the male shaftand the female shaftthrough the raceway surface elementare interposed between the axial grooveon the male shaft sideand the rolling element, and a sliding memberfor slidably moving upon relative movement of the both shaftsandin the axial direction is disposed between another three pairs of axial groovesandwhich are formed on the outer peripheral surface of the male shaftand on the inner peripheral surface of the female shaft, respectively.