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. 19, 2007
Filed:
Mar. 15, 2005
Applicants:
René Strebel, Merenschwand, CH;
René Hoffmann, Steinhausen, CH;
Urs Schaffhauser, Root, CH;
Inventors:
Assignee:
Inventio AG, Hergiswil, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-stage elevator car has equipment for fine positioning of the cars wherein the car thresholds are positionable at the level of the floor thresholds. Adjusting equipment operating on the principle of a differential block and pulley is provided for fine positioning of the cars, the equipment including an endless cable guided over deflecting rollers arranged at the main frame of the multi-stage car and over deflecting rollers arranged at the cars, wherein the cars execute vertical movements of opposite sense.