Universal expandable spacer cores for hollow doors and the metho

Details Universal expandable spacer cores for hollow doors and the metho Universal expandable spacer cores for hollow doors and the metho

1997-05-12

1999-11-30

Friedman, Carl D.

Static structures (e.g., buildings)

Composite prefabricated panel including adjunctive means

Sandwich or hollow with sheet-like facing members

52456, 527931, 527941, 428116, E04C 236, E06B 374

Patent

active

059921277

ABSTRACT:
A door is provided that has a first outer skin and a second outer skin. A first and second outer skins are separated by a frame to form a hollow core between the frame and the outer skins. The outer skins have molded potions that extend into the space between the outer skins. An expandable spacer is connected to the first and second skins to hold the first and second skins a predetermined distance apart. The expandable spacer has a plurality of elongated members having a width. The elongated members are each oriented substantially perpendicular to the first and second outer skins. The expandable spacer has a plurality of expandable core liners extending between the elongated members. The expandable core liners support the elongated members with respect to the first and second outer skins in a perpendicular direction. The elongated members and the expandable core liners have a reduced width portion formed therein that corresponds to the molded portion of the outer skins.

REFERENCES:
patent: 2511620 (1950-06-01), Clements
patent: 2809403 (1957-10-01), Clements
patent: 3385002 (1968-05-01), Quinif
patent: 4583338 (1986-04-01), Sewell et al.
patent: 5167105 (1992-12-01), Isban et al.
patent: 5236392 (1993-08-01), Fauciglietti
patent: 5573818 (1996-11-01), Haywood et al.

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