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:
May. 01, 2001
Filed:
Jul. 14, 1999
Applicant:
Inventors:
Keiichiro Teratoko, Toyota, JP;
Kazuo Kataoka, Toyota, JP;
Assignee:
Suncall Corporation, Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
B21D 1/912 ; B21F 3/02 ;
U.S. Cl.
CPC ...
B21D 1/912 ; B21F 3/02 ;
Abstract
A sheet of strip material of metal is coiled into a ring-like member, with a broader surface thereof being oriented in a radial direction. Opposite ends of the sheet of strip material are connected together by a joint. The joint includes a concave portion and a convex portion which are adapted to be engaged with each other against a repulsive force in a circumferential direction. The ring-like member is formed, on the inner periphery thereof, with teeth for engagement with a gear of a transmission, thereby producing a friction plate.