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:
Aug. 28, 2001
Filed:
Dec. 29, 1999
Walter Kuhn, Friedrichshafen, DE;
Jürgen Wafzig, Eriskirch, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An infinitely variable toroidal drive comprising a housing (,), an input shaft (,), a torque converter (,), two input discs (,) with toroidal inner surfaces, two output discs (,) with toroidal inner surfaces, one input disc and one output disc each forming one pair and both output discs being disposed next to each other with mirror symmetry, several friction wheels for transmitting a torque from the input disc to the corresponding output disc, one output shaft (,) and one gear wheel system (,) between output discs and output shaft wherein on the transmission housing (,) is removably fastened a holding frame (,) which has: one upper frame clamp (,), one lower frame clamp (,), one cup-shaped bearing support member (,) which connects the upper frame clamp with the lower frame clamp and upon which at least one gearing (,) for the gear wheel (,) is situated in a manner such that its inner ring is stationarily arranged and its out ring rotates together with the gear wheel (,).