Metal door assembly and method of production

Details Metal door assembly and method of production Metal door assembly and method of production

1975-04-03

1976-10-26

Kannan, Philip C.

Movable or removable closures

Panel with closure feature

52620, 52624, E06B 316, E04C 234

Patent

active

039875881

ABSTRACT:
A formed sheet metal rectangular-shaped frame is positioned between two sheet metal side panels which may be embossed to provide the appearance of small wood panels. The frame includes an elongated frame member for each edge of the door, and each frame member has two outwardly facing parallel spaced channel portions integrally connected by a center web portion. Extruded plastic trim members cover the top and side frame members and include longitudinally extending hook-shaped leg portions which project into the channel portions and snap-fit onto inwardly formed edge portions of the side panels. A foam insulation material is expanded between the side panels and also serves to space the side panels laterally from the frame to form a thermal barrier. The side trim members are interrupted or notched to receive the door hinges and a latch bolt housing which seat on the web portions of the corresponding frame members. A generally U-shaped elongated door seal is secured to the frame member which extends along the bottom of the door. The frame is preferably constructed in two opposing generally C-shaped sections which are expanded to receive the edge portions of the side panels before the foam is inserted, and a block of more dense insulation material is placed between the side panels adjacent one of the frame sections for attaching a door lock set.

REFERENCES:
patent: 1452703 (1923-04-01), Pollard
patent: 3153817 (1964-10-01), Pease, Jr.
patent: 3310920 (1967-03-01), Bell et al.
patent: 3334464 (1967-08-01), Charles
patent: 3402520 (1968-09-01), Lee et al.
patent: 3512305 (1970-05-01), Multer
patent: 3604152 (1971-09-01), Protzman
patent: 3750333 (1973-08-01), Vance
patent: 3786609 (1974-01-01), DiFazio

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