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:
Jun. 27, 1995
Filed:
Apr. 19, 1993
Applicant:
Inventor:
Emik A Avakian, Chicopee, MA (US);
Assignee:
Datatran Inc., Chicopee, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
180 655 ; 180 656 ; 180907 ; 318138 ; 318139 ;
Abstract
A drive system, suitable for use as a self propelled wheel on a wheelchair or the like, includes a wheel which rotates about a stationary axle assembly. The torque producing electrical motor and the batteries which supply power therefor are mounted on and rotate with the wheel. Command signals are optically coupled from the frame on which the stationary axle is supported to the rotating wheel where they are employed to control the rotational speed and direction of rotation.