Access device

Details Access device Access device

2006-01-17

2006-01-17

Chin-Shue, Alvin (Department: 3634)

Fire escape, ladder, or scaffold

Wall- or floor-attached

Ladder

C182S097000, C182S127000, C280S166000

Reexamination Certificate

active

06986402

ABSTRACT:
An access device for providing access between a lower substrate surface and an upper substrate surface. The access device includes upper and lower articulated ladder members. A first end of the upper member is pivotally connected to or near the upper surface. A second end of the lower member is pivotally connected to the second end of the upper member, such that the lower ladder member is rotatable 180° relative to the upper member. In the storage position, the ladder members are folded in a substantially compact upright disposition, while, in the access position, the members are aligned and extend downwardly and outwardly.

REFERENCES:
patent: 3363722 (1968-01-01), Rimi
patent: 3882964 (1975-05-01), Schellenberg
patent: 4708355 (1987-11-01), Tiede
patent: 5154125 (1992-10-01), Renner et al.
patent: 5339919 (1994-08-01), Boyd
patent: 5584493 (1996-12-01), Demski et al.
patent: 6068277 (2000-05-01), Magnussen

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