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:
May. 22, 2007
Filed:
Jun. 03, 2005
Applicants:
Gerold Goertzen, Brunswick, OH (US);
William A. Null, Jr., Sullivan, OH (US);
Inventors:
Gerold Goertzen, Brunswick, OH (US);
William A. Null, Jr., Sullivan, OH (US);
Assignee:
Invacre Corp., Elyria, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a curb-climbing wheelchair having pivotal arm assemblies. The pivotal arm assemblies include at least one front caster and have the ability to rotate or pivot. The pivot arms rotate or pivot in response to moments generated by accelerating or decelerating the wheelchair thereby raising or lowering the front caster(s) through the rotational movement of the pivot arms. By raising or lowering the front caster(s) in such a manner, curb-like obstacles can be traversed in a low-impact manner.