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. 01, 2008
Filed:
Feb. 16, 2006
Pekka Jahkonen, Hyvinkää, FI;
Pekka Jahkonen, Hyvinkää, FI;
Kone Corporation, Helsinki, FI;
Abstract
A method and a system for controlling an elevator that does not change the torque direction, such as an elevator without counterweight. The elevator has an alternating-current electric motor (M), such as a permanent magnet motor or an asynchronous motor, and a motor drive section (DRIVE) for controlling the motor and an elevator control section (ECO) used to control the operation of the elevator. Control channels are provided between the elevator control section and the motor drive section for the transmission of control signals. To control the motor, only position and torque control signals are passed between the elevator control section and the motor drive.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile