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:
Nov. 19, 1991
Filed:
Nov. 21, 1990
Antonio Romano, Padua, IT;
Campagnolo Srl, Vicenza, IT;
Abstract
A freewheel for bicycles has a plurality of gears each of which, with the exception of the one with the smallest diameter, has teeth arranged in successive sets of three constituted each by teeth of three different types. A first type of tooth has a face which is recessed relative to the corresponding flat face of the gear. A second type of tooth has a groove formed in the top surface of the tooth and extending circumferentially of the gear. A third type of tooth has a top chamfer on its face situated on the side opposite the recessed face of the first tooth.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile