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. 15, 2003
Filed:
Dec. 29, 1999
Applicant:
Inventors:
Walter Kuhn, Friedrichshafen, DE;
Jürgen Wafzig, Eriskirch, DE;
Assignee:
ZF Friedrichshafen AG, Friedrichshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/538 ;
U.S. Cl.
CPC ...
F16H 1/538 ;
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 wherein one input disc and one output disc each form a pair and the two output discs are arranged next to each other with mirror symmetry, several friction wheels for transmitting a torque from one input disc to the corresponding output disc, an output shaft ( ) and a gear wheel system ( ) being coupled via engaging gears ( ) with an output disc ( ).