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. 10, 2012
Filed:
Aug. 20, 2008
Bart Kylstra, San Francisco, CA (US);
Bart Kylstra, San Francisco, CA (US);
Daedalus Wings, Inc., San Francisco, CA (US);
Abstract
A motion control system for lever propulsion of a wheelchair enables a number of different manipulations at the hand grip of the lever. In some embodiments, as many as five user-controlled operations may be performed without need to remove a hand from the hand grip. A user applies force to the hand grip to initiate the motion lever in its forward and rearward strokes. In addition, the hand grip may be pivoted relative to the lever in order to control a brake. A parking brake mechanism may be provided at the hand grip to apply constant brake force. The direction shifter at the top of the hand grip may be used to shift between forward, neutral and rearward modes of operation. In some embodiments, steering of a front caster wheel is possible by rotating the hand grip. Further along the lever, the power applied per lever stroke is adjustable.