Foldable access device

Details Foldable access device Foldable access device

2006-01-03

2006-01-03

Chin-Shue, Alvin (Department: 3634)

Fire escape, ladder, or scaffold

Wall- or floor-attached

Ladder

C182S127000

Reexamination Certificate

active

06981572

ABSTRACT:
An access device for providing access between a lower level and an upper level, the access device including a main body which includes a first body section and a body section pivotally connected to the first body section, said first section being mounted for pivotal movement about a main body fixed pivot mounting between an access position and a stowed position, a drive mechanism operable to cause movement of the first body section between the access and stowed positions, the first and second body sections being pivotally movable between an extended position in which they are disposed generally end to end and a retracted position in which they disposed generally side by side, and a control link assembly for controlling the movement of the first and second body sections between the extended and retracted positions.

REFERENCES:
patent: 2531263 (1950-11-01), Fink et al.
patent: 2933149 (1960-04-01), Royal
patent: 4014486 (1977-03-01), Nelson et al.
patent: 4068770 (1978-01-01), Boehringer
patent: 6068277 (2000-05-01), Magnussen

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