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. 24, 1997
Filed:
Oct. 06, 1995
Gerd Grass, Detmold, DE;
Thyssen Treppenlifte GmbH, Lemgo, DE;
Abstract
A drive assembly for a freight elevator or a stair climber for the handicapped is guided on at least one supporting waling or spar. A driving strip is disposed on the supporting waling or spar. According to one embodiment, the driving strip has recesses formed therein at equal intervals. A load-receiving configuration has a motor-driven drive wheel and drive elements are adapted to the recesses for form-lockingly engaging the drive wheel with the recesses. According to another embodiment, squared blocks of constant length are secured to the supporting waling or spar at equal spacings. A load-receiving configuration has a motor-driven drive wheel and drive elements are adapted to the spacings of the blocks for form-lockingly engaging the squared blocks with the drive wheel.