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. 11, 2003
Filed:
Apr. 05, 1999
Applicant:
Inventor:
Shoji Oka, Gunma-ken, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 1/19 ;
U.S. Cl.
CPC ...
B62D 1/19 ;
Abstract
A shock absorbing type steering apparatus comprises in combination, a tubular outer shaft with a female serration on the inner peripheral surface at one end portion thereof and an inner shaft with a male serration engaged with said female serration on the outer peripheral surface at one end portion thereof, the male serration and the female serration being in the state of interference-fitted engagement with each other to be contractable based on a load in the axial direction. A film of solid lubricant is formed on the surface of at least one of the male and female serrations.