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:
Aug. 11, 2020
Filed:
Aug. 02, 2018
Paul C. Dickie, Clovis, CA (US);
Paul C. Dickie, Clovis, CA (US);
Other;
Abstract
A power assist apparatus that converts a hand-propelled wheelchair to a motorized wheelchair without the use of tools or mounting brackets. The apparatus has a frame, a battery, a control mechanism, a pair of motorized sections at each end of the frame and an outrigger assembly, pivot mechanism and position sensor associated with each motorized section. The motorized sections each have a wheelmotor and a wheel. The outrigger assemblies have arms that support the drive wheels of the wheelchair above the surface to be traversed. The position sensors determine pivoting movement of the outrigger assemblies in response to rotation of the drive wheels by the occupant and transmit positional data to the control mechanism, which sends control information to operate the motors and move the apparatus and wheelchair in the direction indicated by the drive wheels, thereby controlling movement of the apparatus in the same manner as the non-motorized wheelchair.