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:
Apr. 05, 1994
Filed:
Aug. 10, 1993
Daniel J Dawe, Austin, TX (US);
Exceleramatic Inc., Austin, TX (US);
Abstract
In an infinitely variable traction roller transmission wherein two toric traction discs are rotatably supported opposite one another so as to define therebetween a toric cavity in which at least two motion transmitting traction rollers are disposed in engagement with the toric discs and supported by trunnions which are pivotally supported to permit changing the ratio of motion transmission between the toric discs, each pivot trunnion has a cylindrical cavity with a support piston disposed therein in axial alignment with the traction roller supported on the trunnion and a plurality of radial lever members are arranged around the axis of the support piston and rest on a fulcrum structure disposed around the cylindrical cavity and, at their inner end, on the support piston, and a bearing disc which carries the traction roller is supported on the radial lever members at a location inwardly from the fulcrum structure to force the traction roller into engagement with the toric discs with the piston force amplified by the radial lever members.