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US 2025/0042697 A1Published application
Reversible door interlock for elevators
AssigneeCommercial and Residential Elevator Supply LLC
InventorJoseph D. Burns
Life of this patent
Estimating the term…
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AssigneeCommercial and Residential Elevator Supply LLC
InventorJoseph D. Burns
Estimating the term…
An example door interlock includes a baseplate and a keeper removably and pivotally attached to the baseplate. The keeper includes a bore and a grooved opening, where the grooved opening is configured to connect to an arm, the arm connecting a door to the door interlock. The door interlock further includes an actuator including a cylinder. The actuator is configured to insert or retract the cylinder into or out of the bore, respectively, based on a positioning of an elevator, thereby causing the keeper to move between a locked configuration and an unlocked configuration, and causing the door to either be openable when the keeper is in the unlocked position or unopenable when the keeper is in the locked position.
A door interlock, comprising:
A locking apparatus for an elevator door, the locking apparatus configured to move between a locked configuration to prevent opening of the elevator door and an unlocked configuration to allow opening of the elevator door, and wherein the locking apparatus is reversible between a first orientation operable with a left-hand door swing and a second orientation operable with a right-hand door swing.
A locking apparatus for an elevator door, the locking apparatus configured to move between a locked configuration to prevent opening of the elevator door and an unlocked configuration to allow opening of the elevator door, and wherein the locking apparatus defines a maximum external spatial envelope of less than 2″ in width, less than 9″ in length, and/or less than 2.25″ in thickness.
Dependencies are inferred from the claim text.