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:
Sep. 12, 2000
Filed:
Dec. 02, 1998
Jurgen Wafzig, Eriskirch, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
The continuously variable toroidal drive has one input shaft and two input disks situated co-axially thereto with toroidal inner surfaces wherein the input disks and the output disks form pairs of disks disposed with mirror symmetry relative to each other and side by side. The input shaft is surrounded by a coaxial hollow shaft upon which are rotatably supported the two output disks and a first input disk; the second input disk being non-rotatably connected with the hollow shaft. The hollow shaft has a cam flange which together with the first disk is pressed apart by a roller-shaped pressure device, the pressure device being held by a substantially U-shaped supporting structure which is connected with the input shaft, wherein drive pressure is applied without relative rotation between the input disks.