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:
Mar. 20, 2007
Filed:
Nov. 21, 2002
Christopher Rixon, Tecumseh, CA;
Jiyuan Ouyang, Windsor, CA;
Christopher Rixon, Tecumseh, CA;
Jiyuan Ouyang, Windsor, CA;
Drivesol Worldwide, Inc., Troy, MI (US);
Abstract
A pair of first () and second () pedal levers is pivotally supported for rotation by a support (). A pair of adjustment mechanisms () interconnect the support () and the respective pedal levers () and include rods () for adjusting the operational position of the pedal levers () along the rods () between a plurality of adjusted positions. A stepper motor () and screw () unit is attached to the inner end of each rod () for moving the respective pedal levers () along the respective rods (). The assembly () is characterized by a controller () sending pulses of energy to each of the motors (), measuring the time to reach a predetermined resistance condition of each motor during each pulse, and terminating energy to both motors () in response to the time being below a predetermined time period in any pulse to either motor, thereby to synchronize the movement of both pedal levers together.