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:
Mar. 04, 2003
Filed:
Dec. 23, 2000
Wayne R. Lumpkin, Littleton, CO (US);
Michael T. Mayberry, Denver, CO (US);
Avid, L.L.C., Englewood, CO (US);
Abstract
A caliper drive for a bicycle ball bearing mechanical disc brake caliper includes a first cam fixed against axial movement relative to an advancement axis during caliper actuation and a second cam moveably axially of the advancement axis relative to the fixed cam during caliper actuation. A plurality of ramped grooves reside between the first cam and the second cam and each ramped groove receives a ball bearing. The ramped grooves are configured to cause axial movement of the second cam relative to the first cam upon relative rotation of the cams about the advancement axis. Each ramped groove has a side wall defining a radially stable path for the ball bearing substantially preventing relative radial movement between the fixed and drive cams.