Electric heating – Heating devices – Combined with diverse-type art device
Reexamination Certificate
2005-11-01
2005-11-01
Evans, Robin O. (Department: 3742)
Electric heating
Heating devices
Combined with diverse-type art device
C219S542000, C219S543000, C219S544000, C219S547000, C219S548000
Reexamination Certificate
active
06960741
ABSTRACT:
A large area heater used, for example, in a laser printer belt fuser or as cooking surface, has an alumina substrate in which two bowed parts of alumina ceramic having opposed concave regions are formed together as a laminate. Electrical resistors are deposited on the laminate. The alumina laminate provides excellent resistance to uneven heating or other thermal stress. Alumina ceramic is readily shaped during manufacture and manufacturing costs and yield are good. A wide variety of large area heaters can usefully employ the laminate.
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Aoki Makoto
Hamilton Douglas Campbell
Hujimoto Hisakazu
Mizushima Kiyoshi
Smith Jerry Wayne
Brady John A.
Evans Robin O.
Patel Vinod
Pezdek John V.
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