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:
Oct. 05, 2010
Filed:
Mar. 23, 2005
Makoto Yoshida, Kanagawa, JP;
Yoshiaki Katou, Kanagawa, JP;
Yasuo Ito, Kanagawa, JP;
Nobuo Kino, Yokohama, JP;
Makoto Yoshida, Kanagawa, JP;
Yoshiaki Katou, Kanagawa, JP;
Yasuo Ito, Kanagawa, JP;
Nobuo Kino, Yokohama, JP;
Jatco Ltd, Fuji-shi, JP;
Abstract
A continuously variable belt drive transmission, including input and output pulleys each having axially opposed tapered surfaces, and an endless belt including a plurality of metal elements each having opposed side faces contacted with the respective tapered surfaces of the input and output pulleys. Each of the opposed side faces is formed with a plurality of microscopic projections and recesses arranged along a radial direction of the input and output pulleys upon being in contact with the respective tapered surfaces of the input and output pulleys. The tapered surfaces of at least the input pulley are formed with microgrooves that are radially spaced from one another and have a pitch not more than a width of each of the microscopic projections on the side faces of the metal element.