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:
Jan. 19, 1993
Filed:
Sep. 09, 1991
Applicant:
Inventor:
Robert H Girvin, Holliston, MA (US);
Assignee:
Ocean State International, Inc., Woonsocket, RI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05G / ;
U.S. Cl.
CPC ...
745941 ; 745942 ; D121 / ; 280259 ;
Abstract
A bicycle crank assembly utilizing a hollow crank arm is disclosed. The crank arm is welded to a hub for mounting to an axle and reinforced using a doubler provided at a point of maximum stress to minimize the likelihood of breakage at the maximum stress point. The resulting bicycle crank assembly exhibits reduced weight without a substantial reduction of torsional or bending strength.