Escalator missing step detection

Details Escalator missing step detection Escalator missing step detection

1992-11-25

1994-05-31

Bidwell, James R.

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

With means to control the operation of the section

B65G 4300

Patent

active

053161211

ABSTRACT:
An induction proximity sensor 26 is wider than a normal gap between moving escalator steps 10, 12 so that the inductive proximity sensor 26 is always in front of one step or another and provides a constant signal, when steps 10, 12 are passing the inductive proximity sensor 26, and stops the steps 18, 12, 14, 16 when the inductive proximity sensor 26 detects no steps.

REFERENCES:
patent: 3580376 (1971-05-01), Loshbough
patent: 4863006 (1989-09-01), Kotkata et al.
patent: 5096040 (1992-03-01), Wente et al.
patent: 5107975 (1992-04-01), Iwata

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