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Patents Grants
last 30 patents
Information
Patent Grant
Method for determining the position of an elevator car and a pulse...
Patent number
4,880,082
Issue date
Nov 14, 1989
Kone Elevator GbmH
Matti Kahkipuro
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator motor control
Patent number
4,672,277
Issue date
Jun 9, 1987
Elevator GmbH
Heimo Makinen
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Method for improving the dynamic converter drive for a direct curre...
Patent number
4,621,222
Issue date
Nov 4, 1986
Elevator GmbH
Matti Kahkipuro
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Procedure and measuring circuit for stopping an elevator
Patent number
4,518,062
Issue date
May 21, 1985
Elevator GmbH
Heimo Makinen
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Speed control system for a motor with short-circuited rotor
Patent number
4,499,972
Issue date
Feb 19, 1985
Elevator GmbH
Heimo Makinen
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Procedure and means for monitoring the phase sequence in a three-ph...
Patent number
4,480,283
Issue date
Oct 30, 1984
Elevator GmbH
Matti K/a/ hkipuro
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for stopping an elevator
Patent number
4,380,049
Issue date
Apr 12, 1983
Elevator GmbH
Heimo Makinen
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Procedure for fine positioning an alternating current lift
Patent number
4,355,704
Issue date
Oct 26, 1982
Elevator GmbH
Heimo Makinen
B66 - HOISTING LIFTING HAULING