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. 13, 2021
Filed:
Apr. 07, 2016
Applicant:
Inventio Ag, Hergiswil, CH;
Inventor:
Joe Zhou, Shanghai, CN;
Assignee:
INVENTIO AG, Hergiswil NW, CH;
Primary Examiner:
Int. Cl.
CPC ...
B66B 5/00 (2006.01); B66B 1/32 (2006.01); B66B 1/34 (2006.01);
U.S. Cl.
CPC ...
B66B 5/0037 (2013.01); B66B 1/32 (2013.01); B66B 1/3453 (2013.01); B66B 1/3461 (2013.01); B66B 5/0025 (2013.01); B66B 5/0031 (2013.01);
Abstract
A method for verifying the brake force of an electromagnetic elevator brake includes the steps of closing the brake, supplying electrical current to the brake up to a preset verification level and determining whether there has been any movement of the elevator car being braked.