Fire escape – ladder – or scaffold – Chute or escape tower for personnel
Reexamination Certificate
2005-10-25
2005-10-25
Lev, Bruce A. (Department: 3634)
Fire escape, ladder, or scaffold
Chute or escape tower for personnel
C182S049000, C414S537000, C014S069500, C296S061000
Reexamination Certificate
active
06957716
ABSTRACT:
An emergency stairway escape apparatus permitting wheelchairs to egress a multi-story building via a stairway comprises a ramp platform of sufficient width to cover at least half of each stair tread and of sufficient length to span from an upper landing to a lower landing of said stairway. A latch is mounted to an outward wall for impinging the ramp platform in a stowed position and releasing the ramp platform to a deployed position. A plurality of hinges are used for affixing an edge of the ramp platform to the outward wall and permit an arcuate release of the ramp platform to a deployed position. A motion retarding reel is mounted to an upper landing wall, the reel comprising high strength cable outwardly dischargeable in a linear manner and self-retracting, the cable comprising a hook attachable to a wheelchair, the reel controlling ascent and descent along the ramp platform.
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Gugliotta John D.
Lev Bruce A.
Martin P. Jeff
York, III Olen L.
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