Static structures (e.g. – buildings) – Composite prefabricated panel including adjunctive means – Sandwich or hollow with sheet-like facing members
Patent
1997-03-04
1999-01-19
Friedman, Carl D.
Static structures (e.g., buildings)
Composite prefabricated panel including adjunctive means
Sandwich or hollow with sheet-like facing members
52601, 526563, 52232, 109 83, 49503, E04B 100
Patent
active
058602682
ABSTRACT:
A three-hour fireproof door (20) is made from a metal frame (26), a body (28), and a hinge (30). The body (28) is made from a concrete mix (40). The metal frame (26) is such that, when attached to a mold base (34), the body (28) may be cast in place. The concrete mix (40) contains an integral strengthening material (54) in the form of either a metal mesh (54) or an elastomer admixture (82).
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Friedman Carl D.
Gresham Lowell W.
Meschkow Jordan M.
Yip Winnie S.
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