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:
Mar. 23, 2010
Filed:
Feb. 21, 2007
Applicant:
Jules Christen, Altdorf, CH;
Inventor:
Jules Christen, Altdorf, CH;
Assignee:
Inventio AG, Hergiswil NW, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 13/12 (2006.01); E05C 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of modernizing the car door system of a elevator car, which originally comprises at least one car door leaf, a door drive with a crank gear and a drive linkage displacing the car door leaf and a car door/shaft door coupling actuated by the drive linkage, with the following method steps: demounting the door drive together with the crank gear and the drive linkage, mounting a door drive with a linearly moved drive means and coupling of the drive means with the car door leaf of the original car door system, and mounting an actuating device for actuating the car door/shaft door coupling.