Solid door having edges of laminated pressed wood fiber sheet ma

Details Solid door having edges of laminated pressed wood fiber sheet ma Solid door having edges of laminated pressed wood fiber sheet ma

1977-05-26

1978-08-08

Murtagh, John E.

Movable or removable closures

With means mounting closure for swinging

Hinge leaf mounted on closure edge surface

49504, 52809, 428 45, 428921, E04B 194, B27K 318

Patent

active

041048288

ABSTRACT:
A solid board, specially adapted for use as a door with a long fire rating, comprising a fire resistant core material with edges thereon formed of a plurality of layers of sheet material of pressed wood fibers with a fire retardant added thereto. A fire door so constructed combines the advantages of a high fire rating and thick wooden edges for securely holding door mounting hardware.

REFERENCES:
patent: 3196494 (1965-07-01), Hartman
patent: 3254592 (1966-06-01), Chase
patent: 3894357 (1975-07-01), Stanfield
patent: 3940516 (1976-02-01), Gierek

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