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:
Mar. 07, 1989
Filed:
May. 31, 1988
Emerson L Kumm, Tempe, AZ (US);
Kumm Industries, Inc., Phoenix, AZ (US);
Abstract
A flat belt CVT is disclosed in which an idler pulley is situated intermediate variable diameter driving and driven pulley assemblies and within the axial dimension given by their respective inner guideway discs. the frame supporting the idler pulley is linearly moved on a rail by the slack side belt forces to automatically position the idler pulley in an intermediate position between the belt drive elements of the driving and driven pulley assemblies in accordance with their instantaneous effective diameters. While many arrangements are possible (positioning of the idler may be accomplished on or from either side of the center line between the two pulley assemblies, etc.), a preferred disposition is disclosed in which the idler pulley is situated in a region external to the slack belt side in order that the support apparatus for the idler need not enclose moving belts.