Insulating cover for pull down stair

Details Insulating cover for pull down stair Insulating cover for pull down stair

1977-10-17

1979-05-01

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Door and ladder

49463, 52200, E06B 500, E06B 300, E04F 1104

Patent

active

041518942

ABSTRACT:
An insulating cover larger than and fitting over the opening in an upper floor between the upper floor and an adjacent lower floor of a structure which has an open top, box-like shape with a pair of wheels on its back wall and front inside and outside handles. Optionally, the edges of the wall have an insulating gasket and the top of the cover has insulating means thereon. The cover is sufficiently deep to receive the folded stairs between its top and the trap door.

REFERENCES:
patent: 2848722 (1958-08-01), Choporis
patent: 3350823 (1967-11-01), Murray
patent: 3807528 (1974-04-01), Frank
patent: 3841437 (1974-10-01), Caughey

Affiliated with

Also associated with

Rating

Insulating cover for pull down stair does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Insulating cover for pull down stair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insulating cover for pull down stair will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-626933