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US 4,545,058 AGranted
Electric furnace refractory roof form
AssigneeAMSTED Industries Incorporated
InventorJaime F. Pozo
Life of this patent
Estimating the term…
Abstract
A form for constructing a refractory roof for an electric arc furnace having a provision for selectively changing the electrode opening pattern and also forming a roof of different diameters.
Claims6
A form constructing a refractory roof for an electric furnace, said form comprising
- a preformed base having a dome upper surface,
- an axial recess in said upper surface defined by a plurality of arcuate edges forming a scallop periphery,
- an insert replaceably seated in said recess and having angular spaced circular cut outs arranged to cooperate with selective ones of arcuate edges to define an enclosed angularly spaced recess corresponding to the electrode pattern of the furnace with which said roof is used.
Dependencies are inferred from the claim text.