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. 15, 2003
Filed:
Apr. 29, 2002
John J. Neugent, San Luis Obispo, CA (US);
Cane Creek Cycling Components, Inc., Fletcher, NC (US);
Abstract
An inner cylinder supports and drives a hub shell . A sprocket hub is rigidly mounted on one end of the cylinder, and may be integral with it. A bearing at each end of the axle supports the cylinder and sprocket hub for rotation about the axle Outer bearings between the cylinder and hub shell rotationally supported hub shell. A circular ratchet in the interior of the hub shell, and corresponding pawls on the exterior of the cylinder, drive the hub shell when torque is applied to th sprocket hub, and allow the shell to freewheel otherwise. A more central position of the pawl drive in the hub shell compare to prior designs reduces twist of the shell. Wide separation of the bearings supporting the sprocket hub and cylinder provide a highly stable sprocket hub. These features maximize transmission efficiency and reliability.