Step mechanism of transport device

Details Step mechanism of transport device Step mechanism of transport device

2006-03-13

2009-12-08

Deuble, Mark A (Department: 3651)

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

By stairway having steps forming an endless member

C198S326000

Reexamination Certificate

active

07628263

ABSTRACT:
A transport device includes a plurality of endlessly connected steps (1) so that these steps (1) circulate. One or more of the plurality of steps (1) have one or more weights (11) detachably attached thereto. These weights (11) are contained in the space surrounded by a tread (2), a riser (4), and a yoke (3) that form each of the steps (1), and supported on the rear surface of the tread (2) in a row by a channel member (12) of U-shape in cross section.

REFERENCES:
patent: 4638901 (1987-01-01), Lunardi
patent: 5439090 (1995-08-01), Findlay
patent: 6241071 (2001-06-01), Yamashita et al.
patent: 6398003 (2002-06-01), Jasinetzky
patent: 6543599 (2003-04-01), Jasinetzky
patent: 57137821 (1982-08-01), None
patent: 6241184 (1987-02-01), None
patent: 03249089 (1991-11-01), None
patent: 11263575 (1999-09-01), None
International Search Report of PCT/JP2006/305330, date of mailing Jul. 4, 2006.

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