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:
Sep. 13, 1988
Filed:
May. 07, 1982
Applicant:
Inventors:
Osmo Ivanto, Erkyla, FI;
Matti Kankipuro, Hyvinkaa, FI;
Assignee:
Elevator GmbH, Baar, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 / ; 310 58 ; 310 77 ; 310160 ; 310211 ; 187 20 ; 188 75 ; 414246 ;
Abstract
The invention concerns a frequency converter-controlled squirrel cage motor particularly for use in elevator operation. The motor's stator is mounted on a stationary axle and the rotor rotating around the stator has been rotatably carried on the same axle. On the outer periphery of the rotor a cylinder has been mounted, carrying rope grooves and a brake surface for the elevator's lifting ropes and brake.