Insulating enclosure for a ceiling opening

Details Insulating enclosure for a ceiling opening Insulating enclosure for a ceiling opening

1984-12-04

1986-05-27

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

With insulation

Fire or heat shield

49401, 52 36, E06B 518

Patent

active

045910227

ABSTRACT:
An insulating enclosure for a ceiling opening of the kind typically provided for a pull-down folding stair provides an inexpensive and simple structure for enclosing and insulating the opening. The structure comprises wall portions and a top portion overlying the wall portion when the apparatus is operatively disposed, the wall portions and top portions comprising modular insulating block-like members. The block-like members may be made of foam, encased in corrugated board or plastic sheet, interconnected by tabs or tape.

REFERENCES:
patent: 2321499 (1943-06-01), Marschke
patent: 3332167 (1967-07-01), Fayer
patent: 3420363 (1969-01-01), Blickensderfer
patent: 3969868 (1976-07-01), Bainter et al.
patent: 4151894 (1979-05-01), Edwards
patent: 4281743 (1981-08-01), Fuller
patent: 4299059 (1981-11-01), Smith
patent: 4312423 (1982-01-01), Helbig
patent: 4332114 (1982-06-01), Goebel et al.
patent: 4337602 (1982-07-01), King
patent: 4344505 (1982-08-01), Waters et al.

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