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. 10, 2001
Filed:
Jul. 13, 1999
Applicant:
Inventor:
Thomas W. Hanson, Loveland, OH (US);
Assignee:
Hill-Rom, Inc., Batesville, IN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62M 1/14 ;
U.S. Cl.
CPC ...
B62M 1/14 ;
Abstract
An apparatus for propelling a wheelchair includes a spokeless power ring connected to the wheel chair, and a drive wheel supporting the chair and engaging the floor. The power ring and drive wheel are coupled together in such a way that rotation of the power ring drives the drive wheel proportional to the rotation of the power ring.