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:
Nov. 09, 2010
Filed:
Jul. 25, 2007
Applicants:
Hans Kocher, Udligenswil, CH;
Miroslav Kostka, Ballwil, CH;
Inventors:
Hans Kocher, Udligenswil, CH;
Miroslav Kostka, Ballwil, CH;
Assignee:
Inventio AG, Hergiswil NW, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of modernizing an elevator installation that comprises a first elevator car movable in a shaft by a first drive includes installing at least one second drive without changing the first drive. In addition, at least one second elevator car is installed in the shaft and connected with the second drive. Moreover, a control unit is installed or configured in such a manner that it controls the first drive and the second drive.