Insulating trap door cover

Stock material or miscellaneous articles – Sheet including cover or casing – Foamed or expanded material encased

Patent

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Details

182 46, 182 47, 182 77, 428 81, 428157, 4283184, B32B 104, B32B 302, A62B 300, E06C 700

Patent

active

045670749

ABSTRACT:
A trap door cover consists of a generally rectangular frame. Molding strips are connected to the peripheries of the frame such that the finished frame resembles a picture frame. A slab of insulating material fits inside the frame. The door cover may be attached to the door by two spaced long screws through the insulating slab.

REFERENCES:
patent: 3731443 (1973-05-01), Zaroor
patent: 3959050 (1975-05-01), Hooper, Jr.
patent: 4061807 (1977-12-01), Shaler et al.

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