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:
Jun. 17, 2003
Filed:
Aug. 30, 2001
Minoru Kawada, Nishi-kasugai-gun, JP;
Makoto Hattori, Nishi-kasugai-gun, JP;
Yoshikatsu Azuma, Nishi-kasugai-gun, JP;
Hirohide Andoh, Nagoya, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
The invention provides an electromagnetic clutch that effectively reduces the shock noise produced during the coupling of an armature plate and a drive rotor, and furthermore, has a laminated body that can be provided at a low cost as an essential constituent element. The armature plate of the electromagnetic clutch is a laminated body that comprises a plurality of thin metal plates a plurality of fastening tongues project from the inner diameter side of the friction plate on the friction surface side, and these fastening tongues are bent and surround the other laminated thin metal plates so as to fasten them.