Device for blocking stairs

Details Device for blocking stairs Device for blocking stairs

1995-06-28

1996-11-19

Purol, David M.

Fire escape, ladder, or scaffold

With handrail or guard for ladder

182107, 160 24, 52182, E06C 718

Patent

active

055753531

ABSTRACT:
A device for blocking stairs which is attached to the vertically-extending side panels of a stairway. A pair of expanding support elements is wedged between the side panels and separated from each other by a few steps. A material sheet is attached to, and extends between, the pair of expanding support elements. The material sheet covers the few steps so that access to the steps and the stairway is blocked. The support elements include outwardly-biased end plates equipped with rubber pads. One of the support rods has a rotationally-biased spool for retracting the material sheet during transport or storage.

REFERENCES:
patent: 1054535 (1913-02-01), Grigg
patent: 1755232 (1930-04-01), Whitemore
patent: 2173900 (1939-09-01), Dunn
patent: 2225436 (1940-12-01), Lang
patent: 3225863 (1964-06-01), Ludlow
patent: 3372772 (1966-05-01), Singer
patent: 4126206 (1978-11-01), Becnel
patent: 4373569 (1983-02-01), Barettella
patent: 4991691 (1991-02-01), Brawer et al.

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