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.:

US 7741256 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 22, 2010

Filed:

Mar. 08, 2007
Applicants:

Fumiaki Kasahara, Kashiwara, JP;

Satoshi Kakutani, Kashihara, JP;

Kazuto Minagawa, Nara, JP;

Inventors:

Fumiaki Kasahara, Kashiwara, JP;

Satoshi Kakutani, Kashihara, JP;

Kazuto Minagawa, Nara, JP;

Assignee:

JTEKT Corporation, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 113/00 (2006.01); C10M 115/00 (2006.01); C10M 107/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A lubricant composition contains poly-α-olefin oil having a kinematic viscosity of 1500 to 13000 mm/s (40° C.) as a base oil and from 45 to 50% by weight of a thickener composed of polytetrafluoroethylene. The lubricant composition may be used for lubricating an expandable shaft having a pair of shaft members filled with the lubricant composition to prevent stick-slip from occurring when a high surface pressure is applied thereto, thereby allowing consistent maintenance of good lubricating performance. Such an expandable shaft may be incorporated advantageously into a steering system as an intermediate shaft into an area between a steering shaft and a rack-and-pinion mechanism.


Find Patent Forward Citations

Kasahara, Fumiaki. (2010). Lubricant composition, expandable shaft, and steering system using the same (U.S. Patent No. 7741256). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7741256

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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