Furnaces – Arch or roof structure
Reexamination Certificate
2006-05-09
2006-05-09
Rinehart, Kenneth (Department: 3749)
Furnaces
Arch or roof structure
C110S338000, C110S334000, C373S073000, C052S747130
Reexamination Certificate
active
07040241
ABSTRACT:
A refractory brick having a plurality of segments positioned along a longitudinal axis of the refractory brick. Each segment has at least two arcuate recesses and at least two arcuate ridges. The recesses of a first segment of the segments are positioned at a radial offset with respect to the recesses of a second segment which is adjacent the first segment. A plurality of refractory bricks are interlocked with respect to each other to form a refractory construction.
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Merkle Engineers Inc.
Pauley Petersen & Erickson
Rinehart Kenneth
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