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:
Jul. 31, 2018
Filed:
Feb. 14, 2013
Applicant:
Otis Elevator Company, Farmington, CT (US);
Inventors:
Jochen Thomas Richter, Berlin, DE;
Hebert Horbrügger, Berlin, DE;
Richard F. Magda, Plantsville, CT (US);
Marvin Dehmlow, Berlin, DE;
Assignee:
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 1/34 (2006.01); B66B 5/00 (2006.01); B66B 1/30 (2006.01); B66B 1/32 (2006.01); B66B 5/02 (2006.01); B66B 13/22 (2006.01);
U.S. Cl.
CPC ...
B66B 5/0031 (2013.01); B66B 1/30 (2013.01); B66B 1/32 (2013.01); B66B 5/02 (2013.01); B66B 13/22 (2013.01);
Abstract
An elevator safety circuit includes a plurality of relays; safety logic for monitoring status of the plurality of relays, the safety logic generating an output signal in response to the status of the plurality of relays; and a processor controlling operation of an elevator drive in response to the output signal; wherein at least one of the relays is a forced guided relay and at least one of the relays is other than a forced guided relay.