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:
Jul. 11, 1978
Filed:
Apr. 27, 1977
Applicant:
Inventor:
Dale L Waugh, Springfield, MO (US);
Assignee:
Dayco Corporation, Dayton, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62M / ;
U.S. Cl.
CPC ...
280261 ; 7423 / ; 180 / ;
Abstract
A bicycle belt drive system is provided which employs a toothed endless power transmission belt made primarily of polymeric material wherein the teeth of such belt are employed during starting of the bicycle to provide a more positive interconnection between driving and driven pulleys of the drive system and at least one of the pulleys has means for changing the mechanical advantage between the driving pulley and the driven pulley in response to rotational speed changes in the one pulley and thus in the bicycle speed.