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. 25, 1979
Filed:
Dec. 19, 1977
Steven J Kanstoroom, Silver Spring, MD (US);
Other;
Abstract
A variable diameter, speed responsive pulley of extremely compact, simple design is disclosed for use in combination with a variable diameter, tension operated pulley of substantially identical design to provide a controlled speed, variable ratio accessory drive. The speed responsive pulley is formed by a pair of pulley members mounted for relative axial movement on a rotatable central hub wherein each pulley member includes inner and outer frusto-conical surfaces cooperating with corresponding surfaces on the other pulley member to form belt engaging and centrifugal force receiving surfaces, respectively. In one embodiment the speed responsive pulley includes rigid inertial mass members for creating the centrifugal force necessary for operating the pulley. In another embodiment the centrifugal force is developed by an inertial mass having fluid properties.