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:
Apr. 04, 2000
Filed:
Aug. 17, 1998
Applicant:
Inventors:
Weston M Wilcox, Sun Prairie, WI (US);
Stephen J Baumann, Oconomowoc, WI (US);
Assignee:
Trek Bicycle Corporation, Waterloo, WI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
474 78 ; 474 80 ; 474 69 ;
Abstract
A front derailleur for shifting gears on a chain driven bicycle, the chain having a drive run and a return run from a plurality of chainwheels, uses a chain supporting idler cog to vertically control the chainline of the chain drive run and to also move transversely to shift the chain from one of the chainwheels to another.