Proximity hand rail monitor for a moving walkway

Details Proximity hand rail monitor for a moving walkway Proximity hand rail monitor for a moving walkway

2008-07-29

2008-07-29

Deuble, Mark A (Department: 3651)

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

Moving hand-support structure

C198S323000

Reexamination Certificate

active

07404477

ABSTRACT:
The present invention discloses and teaches method and apparatus for the detection of a disengaged, moving, handrail on a people moving walkway particularly an escalator. By the present invention a proximity sensor is positioned beneath the handrail for detection of a handrail that has become disengaged from its underlying guide rail. Upon detection of a disengaged handrail, the proximity sensor sends an electrical signal to a controller which stops the escalator or walkway.

REFERENCES:
patent: 4976345 (1990-12-01), Adrian et al.
patent: 5092446 (1992-03-01), Sullivan et al.
patent: 5361887 (1994-11-01), Zaharia et al.
patent: 6015038 (2000-01-01), Stoxen et al.
patent: 6112166 (2000-08-01), Joosten
patent: 6334522 (2002-01-01), Haruta et al.
patent: 7225912 (2007-06-01), Toennisson et al.

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