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. 04, 2002
Filed:
Feb. 27, 2001
Applicant:
Inventor:
Ulrich Alber, Albstadt, DE;
Assignee:
Alber Antriebstechnik GmbH, Albstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 5/106 ;
U.S. Cl.
CPC ...
B62D 5/106 ;
Abstract
A transporting device has wheels, a stair climbing unit having climbing legs, an electric motor provided for driving of the stair climbing unit, a drive shaft which is driven by the electric motor and is formed as a crank shaft located symmetrically to a central longitudinal axis of the device, the drive shaft having halves each rotatably supporting a first crank for the climbing leg and a second crank for the wheel.