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:
Apr. 03, 2018
Filed:
Jan. 13, 2014
Applicant:
Otis Elevator Company, Farmington, CT (US);
Inventors:
Assignee:
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 3/28 (2006.01); B66B 11/04 (2006.01); B66B 1/28 (2006.01); H02P 25/22 (2006.01); H02K 21/16 (2006.01); H02K 11/33 (2016.01); H02K 21/02 (2006.01); H02K 16/04 (2006.01);
U.S. Cl.
CPC ...
B66B 11/0407 (2013.01); B66B 1/28 (2013.01); H02K 3/28 (2013.01); H02K 11/33 (2016.01); H02K 21/02 (2013.01); H02K 21/16 (2013.01); H02P 25/22 (2013.01); H02K 16/04 (2013.01); H02K 2213/03 (2013.01); H02K 2213/12 (2013.01);
Abstract
A conveyance system includes a car; a machine for imparting motion to the car, the machine including a stator and a rotor, the stator including 12*k stator teeth, the rotor including 11*k rotor poles, wherein k is a natural even number, the machine including windings located at the stator teeth, the windings arranged in 6 phases; and a drive unit for providing drive signals to the machine, the drive unit including a plurality of drives, the number of drives being an integer multiple of 2.