US 11,679,962 B2
Switch assemblies, rail-mounted lift systems, and rail-mounted lift units having emergency stop devices
Derek Strassle, Endicott, NY (US); Joseph Blackmon, Cicero, NY (US); Sravan Mamidi, Columbus, NY (US); and Ka Wing Calvin Peer, Ithaca, NY (US)
Assigned to Liko Research & Development AB, Luleå (SE)
Filed by Liko Research & Development AB, Luleå (SE)
Filed on Jun. 2, 2020, as Appl. No. 16/890,226.
Claims priority of provisional application 62/856,311, filed on Jun. 3, 2019.
Prior Publication US 2020/0377347 A1, Dec. 3, 2020
Int. Cl. H01H 71/50 (2006.01); B66C 13/50 (2006.01); B66C 13/22 (2006.01); H01H 71/68 (2006.01); B66C 6/00 (2006.01)
CPC B66C 13/50 (2013.01) [B66C 13/22 (2013.01); H01H 71/50 (2013.01); H01H 71/68 (2013.01); B66C 6/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rail-mounted lift unit comprising:
a lift motor,
a switch arranged to move between a closed position, wherein the switch electrically couples the lift motor to an energy source, and an open position, wherein the switch electrically decouples the lift motor from the energy source;
an emergency stop device coupled to the switch and arranged to move the switch from the closed position to the open position;
a reset actuator coupled to the switch and arranged to move the switch from the open position to the closed position;
one or more user interface devices; and
a control unit comprising a processor coupled to a non-transitory memory storing computer readable and executable instructions, the control unit being communicatively coupled to the reset actuator and the one or more user interface devices, wherein the control unit executes logic to:
receive a reset input from the one or more user interface devices; and
move the switch from the open position to the closed position and reset the emergency stop device with the reset actuator when the reset input is received by the one or more user interface devices.