Static structures (e.g. – buildings) – Sectioned imperforate facing within perpheral frame; e.g.,...
Patent
1993-11-15
1996-06-04
Smith, Creighton
Static structures (e.g., buildings)
Sectioned imperforate facing within perpheral frame; e.g.,...
523099, E06B 370
Patent
active
055221955
ABSTRACT:
An energy-efficient, wood-skinned fire door having a laminate construction. There is a core panel formed of a fire-resistant material, preferably mineral fiber board. The perimeter frame around this has a channel formed in its inner edge for receiving the core panel in a close interfit therewith. This supports the panel in the channel, and also eliminates any direct path for a fire to proceed past the edge of the fire-resistant panel. Foil-covered thermal insulation panels are positioned on opposite sides of the core panel, and these are covered with wooden door skins. This provides a structure which is highly fire resistant and exhibits excellent insulation qualities, yet which is also aesthetically pleasing so as to be suitable for residential use.
REFERENCES:
patent: 4811538 (1989-03-01), Lehnert et al.
patent: 5022206 (1991-06-01), Schield et al.
Photocopy of p. 363 of American Heritax's Dictionary.
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