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:
Feb. 20, 2007
Filed:
Oct. 24, 2005
Applicants:
Wolfgang Meissner, Neuhausen, DE;
Walter Nuebling, Ostfildern, DE;
Inventors:
Wolfgang Meissner, Neuhausen, DE;
Walter Nuebling, Ostfildern, DE;
Assignee:
ThyssenKrupp Elevator AG, Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An elevator installation with at least one shaft having a plurality of shaft doors is provided. At least two cars disposed one above the other travel up and down in the shaft. Each car has at least one car door. A safety device is provided for blocking the travel of the cars when the shaft doors or car doors are open. The safety device has at least two independent safety circuits, each having at least one shaft door and/or car door associated with it. Travel of at least one car can be blocked by means of the safety circuits.