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:
Jul. 11, 1989
Filed:
Apr. 25, 1988
Charles E Kraus, Austin, TX (US);
Excelermatic Inc., Austin, TX (US);
Abstract
In a planetary type traction roller transmission which comprises a sun, a traction ring and planetary traction rollers disposed in the space between, and in engagement with, the traction ring and the central sun, the traction surfaces of the sun, the traction rollers and the ring members are all somewhat conical and the members are so arranged that their axes and all tangential axial lines of the traction surfaces intersect in a single point on the axis of the transmission and a device is provided for urging the sun member toward that point of intersection and between the planetary rollers for forcing the planetary rollers into engagement with the sun and the traction ring.