Insulating trap door cover

Details Insulating trap door cover Insulating trap door cover

1985-03-21

1986-01-28

Van Balen, William J.

Stock material or miscellaneous articles

Sheet including cover or casing

Foamed or expanded material encased

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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