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:
Dec. 23, 2003
Filed:
Oct. 02, 2001
Applicant:
Inventor:
Yasuharu Misada, Kashiwara, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/310 ;
U.S. Cl.
CPC ...
F16H 1/310 ;
Abstract
A toroidal type continuously variable transmission includes a pair of discs ( ) in opposed relation, and a rotary element ( ) interposed in a toroidal clearance (S) defined between these discs ( ). Torque is transmitted between the pair of discs ( ) via the rotary element ( ). Sensing the velocity of the rotary element ( ) permits the determination of, for example, how much the rotary element ( ) slips on the discs ( ). This assists the prevention of heat-up of the rotary element ( ) and also provides an optimal traction between the rotary element ( ) and the discs ( ).