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. 09, 1999
Filed:
Mar. 13, 1997
Applicant:
Inventors:
Christopher P D'Aluisio, Bethel, CT (US);
Mario M Galasso, Redding, CT (US);
Robert H Humphries, Jr, Danbury, CT (US);
Assignee:
Cannoncale Corporation, Georgetown, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62M / ;
U.S. Cl.
CPC ...
280261 ; 280259 ; 474 87 ; 474 88 ;
Abstract
A crank assembly for a bicycle uses a plurality of auxiliary sprockets and chains to achieve high ratios of wheel speed to pedal-rotation speed. The compact crank assembly is especially well suited for use on full-suspension bicycles, as high gear ratios are attained without altering the normal size and layout of the main sprocket and drive chain of the bicycle. The auxiliary sprockets may be coupled by a simple axle or, alternatively, may be coupled by a rider-adjustable transmission to provide greater control over the gear ratio of the crank assembly.