Inventor
MAEKINEN HEIMO
FI7 patents
⚠️ This page may combine multiple inventors who share the name “MAEKINEN HEIMO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ELEVATOR GMBH
6 patentsUS4380049AApr 12, 1983
Method and apparatus for stopping an elevator
ELEVATOR GMBH29 citations89
US4621222ANov 4, 1986
Method for improving the dynamic converter drive for a direct current elevator motor
ELEVATOR GMBH3 citations61
US4518062AMay 21, 1985
Procedure and measuring circuit for stopping an elevator
ELEVATOR GMBH6 citations61
US4480283AOct 30, 1984
Procedure and means for monitoring the phase sequence in a three-phase network
ELEVATOR GMBH2 citations61
US4355704AOct 26, 1982
Procedure for fine positioning an alternating current lift
ELEVATOR GMBH3 citations60
US4499972AFeb 19, 1985
Speed control system for a motor with short-circuited rotor
ELEVATOR GMBH0 citations40