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. 25, 2017
Filed:
May. 24, 2013
Applicant:
Inventio Ag, Hergiswil, CH;
Inventors:
Lorenz Etzweiler, Schenkon, CH;
Hans Kocher, Udligenswil, CH;
Assignee:
Inventio AG, Hergiswil, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 11/02 (2006.01); B66B 17/34 (2006.01); B66B 1/36 (2006.01); B66B 5/18 (2006.01);
U.S. Cl.
CPC ...
B66B 11/0293 (2013.01); B66B 1/365 (2013.01); B66B 5/18 (2013.01); B66B 17/34 (2013.01);
Abstract
An elevator damping unit for reducing vertical oscillations of an elevator car when at a standstill, has brake shoe retainers provided with brake shoes. The brake shoe retainers are connected to a common electric motor via a toothed gear mechanism. The toothed gear mechanism has a central driving gearwheel, which adjoins a drive shaft of the motor, and eccentric gearwheels, which are each assigned to one of the brake shoes and are in operative connection with the driving gearwheel. The brake shoes are supported resiliently on the respective brake shoe retainers in each case via two helical compression springs.