Insulating enclosure for disappearing stairway

Details Insulating enclosure for disappearing stairway Insulating enclosure for disappearing stairway

1979-11-23

1981-08-04

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

With insulation

182 78, 182129, E06C 908

Patent

active

042817439

ABSTRACT:
A relatively lightweight insulating enclosure for placement over an attic structure such as a disappearing stairway or an attic fan, to reduce unwanted heat transfer through the structure when closed. The insulating enclosure comprises a number of box segments made of a lightweight insulating material such as foamed polystyrene, connected together with overlapping joints. Expansion members are optionally included to enlarge the width of the assembled enclosure.

REFERENCES:
patent: 2191774 (1940-02-01), Reed
patent: 2439602 (1948-04-01), Heritage
patent: 2464000 (1949-03-01), Schild
patent: 2496773 (1950-02-01), Brown
patent: 4151894 (1979-05-01), Edwards

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