Vehicle lifting apparatus

Details Vehicle lifting apparatus Vehicle lifting apparatus

2011-08-30

2011-08-30

Le, Mark T (Department: 3617)

Railway rolling stock

Steps

Folding

C105S449000

Reexamination Certificate

active

08006628

ABSTRACT:
An emergency staircase includes a plurality of step forming members that are housed in a casing. A podium and a railing are fitted to the casing so that the podium and the railing can be unfolded against the casing. Each of the step forming members includes a pair of guiding parts which are arranged in parallel, and a step plate that is sandwiched between the guiding parts of each pair and fastened to each of the guiding parts, so that left and right pairs of resulting squarish U-shapes face each other. Inner guiding parts and outer guiding parts are mutually of a similar configuration, so that each inner one is relatively smaller than each outer one by the thickness of the part. The protrusions act as sliding contacts between adjacent guiding parts.

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patent: 5813071 (1998-09-01), Breslin et al.
patent: 6964444 (2005-11-01), Chumley et al.
patent: 7556303 (2009-07-01), Waldner et al.
patent: H11-321643 (1999-11-01), None
patent: 2000-144643 (2000-05-01), None
patent: 2001-315640 (2001-11-01), None
patent: 2003-301680 (2003-10-01), None

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