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:
Jan. 12, 2021
Filed:
Apr. 24, 2018
Applicant:
Otis Elevator Company, Farmington, CT (US);
Inventor:
Nicolas Fonteneau, Chateauneuf sur Loire, FR;
Assignee:
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 5/00 (2006.01); B66B 13/22 (2006.01); B66B 1/34 (2006.01); B66B 13/16 (2006.01); B66B 13/24 (2006.01);
U.S. Cl.
CPC ...
B66B 5/0087 (2013.01); B66B 1/3407 (2013.01); B66B 13/16 (2013.01); B66B 13/22 (2013.01); B66B 13/24 (2013.01);
Abstract
Access prevention systems of elevator landing door locks including a landing door lintel for a landing door of an elevator system, a lock mechanism mounted to the lintel and arranged to enable unlocking of the elevator landing door, and an indicator feature on the lintel and aligned with the lock mechanism to indicate a location of a blocked locking mechanism, wherein the indicator feature is at least one of frangible or breakable to permit access to the lock mechanism when the indicator feature is broken.