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:
Sep. 08, 1992
Filed:
Sep. 24, 1990
Applicant:
Inventors:
Kanji Murano, Tokyo, JP;
Tetsuo Sekiya, Kanagawa, JP;
Akihiko Ohashi, Shizuoka, JP;
Takehisa Ishida, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
384-1 ; 384490 ;
Abstract
A rotational bearing system incorporates a ball bearing to support a freely rotatable shaft or housing through rolling contact with the ball bearing, the rotational bearing system comprises: vibratory elements adapted to excite in resonant vibration a fixed shaft or a fixed housing in rolling contact with the ball bearings to lower the frictional resistance of the ball bearing.