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. 29, 1997
Filed:
May. 31, 1995
Applicant:
Inventor:
Roger O Durham, Glendale, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05G / ;
U.S. Cl.
CPC ...
745941 ; 7457 / ;
Abstract
A bicycle crank arm has an internal flange with a plurality of mounting holes for receiving mounting fasteners. The internal flange allows the crank arm to be wider, which lends it to being cast out of a light alloy, such as magnesium or aluminum, producing a stronger and more rigid crank arm of reduced weight. Also, the mounting fasteners and the internal flange are hidden from sight, enhancing the appearance of the crank arm.