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:
Oct. 24, 1989
Filed:
Mar. 16, 1989
Applicant:
Inventors:
Dietmar Berkhan, Neustadt, DE;
Martin Mehlert, Nienstaedt, DE;
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
188171 ; 188 75 ; 188265 ;
Abstract
A safety brake for stopping an escalator in the event of a malfunction or the like, includes a locking pawl to prevent disengagement of the brake until the latter is intentionally released. Over the locking pawl reach a reinforcement of the brake. The brake is released by energizing a solenoid which displaces the locking pawl to an inoperative position. Once the locking pawl is disabled, the brake shoes are released from engagement with the escalator drive shaft brake disk. Locking and release of the brake shoes are initiated by springs and solenoid.