Inventor
KAEHKIPURO MATTI
FI19 patents
⚠️ This page may combine multiple inventors who share the name “KAEHKIPURO MATTI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ELEVATOR GMBH
7 patentsUS4742893AMay 10, 1988
Signalling procedure for a lift and a signalling system
ELEVATOR GMBH22 citations78
US4393442AJul 12, 1983
Procedure and means for monitoring current data in a thyristor-controlled direct current drive
ELEVATOR GMBH6 citations62
US4380275AApr 19, 1983
Apparatus for interfacing weighing data with a lift control system
ELEVATOR GMBH5 citations62
US4621222ANov 4, 1986
Method for improving the dynamic converter drive for a direct current elevator motor
ELEVATOR GMBH3 citations61
US4480283AOct 30, 1984
Procedure and means for monitoring the phase sequence in a three-phase network
ELEVATOR GMBH2 citations61
US4466053AAug 14, 1984
Thyristor converter drive
ELEVATOR GMBH0 citations45
US4635320AJan 13, 1987
Floor selector for lift
ELEVATOR GMBH0 citations42
KONE ELEVATOR GMBH
6 patentsUS4894765AJan 16, 1990
Bi-directional d.c./d.c. converter compatible with an inverter bridge
KONE ELEVATOR GMBH33 citations92
US4753323AJun 28, 1988
Safety system for closing doors
KONE ELEVATOR GMBH23 citations81
US4774650ASep 27, 1988
Method for directing power between three-phase mains and a d.c. circuit
KONE ELEVATOR GMBH14 citations74
US4791346ADec 13, 1988
Elevator motor control
KONE ELEVATOR GMBH3 citations62
US4737900AApr 12, 1988
Method of and apparatus for controlling the braking resistor of a frequency converter
KONE ELEVATOR GMBH5 citations59
US4799139AJan 17, 1989
Voltage regulation for three-phase inverters
KONE ELEVATOR GMBH4 citations57