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. 04, 2008
Filed:
Oct. 13, 2005
Applicants:
Lennart Svensson-hilford, Berlin, DE;
Paul Friedli, Rementschwil, CH;
Inventors:
Lennart Svensson-Hilford, Berlin, DE;
Paul Friedli, Rementschwil, CH;
Assignee:
Inventio AG, Hergiswil NW, CH;
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/00 (2006.01); G03B 21/28 (2006.01); G03B 21/56 (2006.01); B66B 1/34 (2006.01); G09F 7/00 (2006.01); H04N 5/64 (2006.01); H04N 9/31 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract
An elevator installation includes an elevator car moved in an elevator shaft between floors in a building. A shaft door for closing the elevator shaft is arranged at each floor. A method for representing information on the shaft doors makes possible a qualitatively high-grade projection of an image on the shaft door. The shaft doors are formed to be at least partly transparent, wherein a projector is arranged in the elevator shaft and projects an image onto the side of the shaft door facing the elevator shaft.