Static structures (e.g. – buildings) – With lifting or handling means for primary component or... – Construction or component having means to engage hand or...
Patent
1980-02-08
1982-08-03
Murtagh, John E.
Static structures (e.g., buildings)
With lifting or handling means for primary component or...
Construction or component having means to engage hand or...
52600, 110173A, 294 89, 432250, B66C 166, F23M 700
Patent
active
043421784
ABSTRACT:
A pit cover for retaining heat in an open top, ring-shaped, carbon anode baking furnace comprises an insulating cement cast into the form of the cover, at least one metal beam embedded in the insulating cement, and a plurality of stainless steel needles interspersed substantially throughout the insulating cement for reinforcement purposes. The insulating cement has a K factor of approximately 2 to 4, a density of approximately 80 to 100 lb./ft..sup.3, a cold crushing strength in the range of 1,000 to 5,000 psi, and a low iron content, preferably, less than 2%.
REFERENCES:
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patent: 2703003 (1955-03-01), Ruppel
patent: 2772560 (1956-12-01), Neptune
patent: 3355160 (1967-11-01), Given
patent: 3808085 (1974-04-01), Givens
patent: 4179151 (1979-12-01), Tye
patent: 4210086 (1980-07-01), Smith
Arnold Franklin D.
Benton Charles M.
Kellogg George W.
Kirk Roger D.
Hanegan Herbert M.
Linne R. Steven
Murtagh John E.
National Steel Corp.
Southwire Co.
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