Compositions: ceramic – Ceramic compositions – Refractory
Reexamination Certificate
2007-10-16
2007-10-16
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Refractory
C607S096000, C607S108000, C607S109000, C607S110000, C607S111000, C607S114000, C165S010000
Reexamination Certificate
active
10990858
ABSTRACT:
A thermocautery block is formed by mixing alumina, zirconium silicate, feldspar, pottery stone, siliceous limestone, kaolin, Gairome clay (Japan), and black soil with water; evenly stirring the mixture; compressing, dehydrating, and extruding the mixture into polygonal blocks; and drying, kilning, and cooling the blocks. The thermocautery block has a high density and a hardness higher than 6.0, and could store thermal energy after being heated for a short time. The stored thermal energy is progressively released via superficial areas of the block other than corners thereof to produce the effect of progressive temperature rise.
REFERENCES:
patent: 4743726 (1988-05-01), Hughes et al.
patent: 5086629 (1992-02-01), Dibrell
patent: 5494598 (1996-02-01), Hughes
patent: 6972029 (2005-12-01), Mayrhofer et al.
patent: 2004/0243203 (2004-12-01), Lavine
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