#B66B1/30

ELEVATOR PROPULSION DEVICE INCLUDING A POWER SUPPLY ARRANGED TO REDUCE NOISE IN THE CAB

An illustrative example embodiment of an elevator propulsion device includes at least one drive member configured to engage and climb along a vertical structure, a motor module including at least one …

DRIVE·Feb 7·1 min read

B66B1/30 OTIS ELEVATOR CO [US]

ELEVATOR SYSTEM INCLUDING WIRELESS POWER TRANSFER

An illustrative example embodiment of an elevator system includes an elevator car, a first transceiver supported on the elevator car, and a second transceiver in a preselected location where the first…

DRIVE·Nov 29·1 min read

B66B1/30 OTIS ELEVATOR CO [US]

System power control

This disclosure relates to minimising the losses in a power drive system. In particular it relates to detecting excess power and automatically activating and deactivating a system to redirect the exce…

DRIVE·Sep 11·1 min read

B66B1/30 CONTROL TECH LTD [GB]

POWER SUPPLY FOR AC ELEVATOR

An a.c. elevator of the invention has a commercial power source (1), an inverter (3) operable with the power from the commercial power source (1) for generating a.c. power, and an electric motor to be…

DRIVE·Aug 28·1 min read

B66B1/30 FUJITEC KK [JP]