Passenger conveyor drive module arrangement

Details Passenger conveyor drive module arrangement Passenger conveyor drive module arrangement

2006-11-21

2006-11-21

Bidwell, James R. (Department: 3651)

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

By stairway having steps forming an endless member

C198S331000

Reexamination Certificate

active

07137500

ABSTRACT:
A passenger conveyor system (20) has a drive module that engages only one side (50) of the step chain loop (30). In a multiple drive module arrangement, at least one of the drive modules (40B) engages both sides (50, 52) of the step chain loop while another engages only one side (50). The inventive arrangement is not sensitive to spacing (54, 56) between the drive modules. Another example embodiment includes a synchronizing module (60) that engages both sides (50, 52) of the step chain loop (30).

REFERENCES:
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patent: 3365051 (1968-01-01), Mullis et al.
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patent: 3658166 (1972-04-01), Hara et al.
patent: 4397096 (1983-08-01), Kraft et al.
patent: 4895240 (1990-01-01), Bruehl et al.
patent: 6450317 (2002-09-01), Fargo et al.
patent: 6685004 (2004-02-01), Fargo et al.
PCT International Search Report for International Application No. PCT/US03/00411, mailed Apr. 23, 2003.

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