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:
Jul. 29, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventor:
John G Casali, Blacksburg, VA (US);
Assignee:
The Center for Innovative Technology, Herndon, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62M / ;
U.S. Cl.
CPC ...
180 13 ; 180907 ;
Abstract
A power drive/steer attachment for a wheelchair having a framework supporting a plurality of front and rear wheels and a seat for accommodating an operator, is adapted for use with a motive source and includes a frame for attachment to and detachment from the framework of the wheelchair, a ground engaging mechanism, coupled to an end of a column, for driving the wheelchair by frictionally contacting a ground surface, a mechanism for driving the ground engaging means, and a mechanism, coupled to the second end of the frame, for controlling the driving mechanism and for steering the ground engaging mechanism to thereby steer the wheelchair.