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:
May. 26, 2020
Filed:
Feb. 24, 2017
Applicants:
Henri Vakkamaki, Helsinki, FI;
Tuukka Korhonen, Tuusula, FI;
Inventors:
Henri Vakkamaki, Helsinki, FI;
Tuukka Korhonen, Tuusula, FI;
Assignee:
Kone Corporation, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 5/06 (2006.01); B66B 1/28 (2006.01); B66B 1/32 (2006.01); B66B 5/00 (2006.01); B66B 5/22 (2006.01); B66B 7/06 (2006.01); B66B 9/00 (2006.01);
U.S. Cl.
CPC ...
B66B 5/06 (2013.01); B66B 1/28 (2013.01); B66B 1/32 (2013.01); B66B 5/0031 (2013.01); B66B 5/22 (2013.01); B66B 7/06 (2013.01); B66B 7/068 (2013.01); B66B 9/00 (2013.01);
Abstract
An overspeed governor including a governor sheave, a permanent magnet rotor coupled to the governor sheave, a stator arranged to interact with the permanent magnet rotor, a safety gear for braking movement of an elevator car and a safety rope fixed to the safety gear and arranged to run via the governor sheave. The stator includes a winding adapted to exert, when energized, to the permanent magnet rotor a braking force that brakes movement of the permanent magnet rotor and, consequently, movement of the governor sheave and the safety rope, thereby activating the safety gear.