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:
Jan. 22, 2002
Filed:
Oct. 26, 1999
Yuanda Zhou, Shenzhen, CN;
Li Han, Shenzhen, CN;
Jack Zhang, Shenzhen, CN;
James Xue, Shenzhen, CN;
Mike Xiang, Shenzhen, CN;
Kun Bao, Shenzhen, CN;
Shenzhen CIMC-Tianda Airport Support Ltd., Shenzhen, CN;
Abstract
A transmission wheel for a platform transmission apparatus includes a wheel frame having a disk with a central hole for fixing to a drive axle, and a plurality of ball rollers carried on each side of the disk by supports which extend axially. The ball rollers on each side of the disk each have a circular arc camber which lies on a common circle concentric to the axis, the rollers on each side being evenly spaced apart and staggered from the rollers on the other side. The supports include concave portions which correspond to the circular arc camber and also enhance the rigidity of the wheel frame.