Elevator door system

Details Elevator door system Elevator door system

B - Operations, Transporting

66

B

B66B 13/02 (2006.01)

Patent

CA 2049115

Abstract of the Disclosure A door operating unit which provides motive force for opening and closing the car and hoistway doors of an elevator provides force prior to opening the car doors. This force is used to simultaneously fixedly attach the car door to the hoistway doors and to unlock the hoistway doors. OT-1035

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