Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – With means to control the operation of the section
Patent
1992-07-06
1993-02-16
Valenza, Joseph E.
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
With means to control the operation of the section
198323, B65G 1500
Patent
active
051863006
ABSTRACT:
An improved keyswitch circuit for an escalator or moving walkway senses the normal (center or lateral) position of the keyswitch and, if the keyswitch does not return to its normal position after a selected event such as a selected normal starting interval, then the safety circuit is opened and the escalator or moving walk is stopped; the escalator or moving walkway can be restarted only after first returning the keyswitch to its normal position.
Gastineau Cheryl L.
Getz Richard D.
Maguire Francis J.
Otis Elevator Company
Valenza Joseph E.
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