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:
Jan. 19, 2010
Filed:
Feb. 20, 2004
Yousuke Ishida, Shizuoka, JP;
Masaru Oosuga, Shizuoka, JP;
Yousuke Ishida, Shizuoka, JP;
Masaru Oosuga, Shizuoka, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Shizuoka, JP;
Abstract
A belt-type continuously variable transmission () includes a primary sheave () having a pair of first clamp surfaces (), a secondary sheave () having a pair of second clamp surfaces (), and a belt () endlessly wound between both the sheaves (). The belt () has contact surfaces () clamped between the first clamp surfaces () and between the second clamp surfaces (). Powder () having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces () of the primary sheave (), the second clamp surfaces () of the secondary sheave (), and the contact surfaces () of the belt ().