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:
Feb. 20, 1990
Filed:
Sep. 01, 1988
Hiroshi Takano, Miki, JP;
Mitsuboshi Belting Ltd., Kobe, JP;
Abstract
In order to provide smoother transition for speed changes, a variable speed pulley having a movable sheave half and a fixed sheave half is provided with a torque cam. A spring biases the second sheave half axially of the first sheave to vary the width of a belt receiving groove. The torque cam forces the second sheave half in the same direction as the spring when the torque of a load operatively connected into the pulley assembly is increased. A centrifugal thrust arrangement urges the second sheave half in a direction reverse to the direction caused by the spring responsive to the rotational speed of the pulley.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile