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:
Apr. 20, 2004
Filed:
May. 29, 2002
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 1/530 ; F16D 7/00 ;
U.S. Cl.
CPC ...
G11B 1/530 ; F16D 7/00 ;
Abstract
A torque limiter of the present invention includes: a first rotor and a second rotor, the first and second rotors rotatable about a single center of rotation; a yoke board integrally formed with the first rotor; a magnet which is provided so as to be in contact with the yoke board; and a hysteresis board provided so as to be opposed to the magnet with a space therebetween, the hysteresis board is integrally formed with the second rotor and a washer having depression portions, protrusion portions, holes, or a combination thereof is provided between the first and second rotors.