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:
May. 18, 2010
Filed:
Dec. 29, 2007
Brian Roger Clemons, Marietta, GA (US);
Michael Christopher Dean, Alpharetta, GA (US);
Brian Roger Clemons, Marietta, GA (US);
Michael Christopher Dean, Alpharetta, GA (US);
Other;
Abstract
The invention is an improved lever drive arrangement for human powered machines. Independent levers are connected directly to a primary drive arrangement positioned behind the rider comprised of one-way clutch/s connected to a common shaft connected to a sprocket that drives by chain a series of two reductions called a secondary drive arrangement and a tertiary drive arrangement prior to engaging the final drive element. The positioning of the primary drive arrangement behind the rider better enables upright riding by a person and better enables increases in lever length thereby increasing mechanical advantage is possible for producing greater torque to drive larger or multiple reductions. The independent lever arrangement allows a rider to deviate from the traditional opposing circular or up and down cadence of the rider's limbs making possible a variety of limb pumping movements by one or more limbs.