Electric heating – Heating devices – With heater-unit housing – casing – or support means
Reexamination Certificate
2004-04-07
2008-05-13
Campbell, Thor S. (Department: 3742)
Electric heating
Heating devices
With heater-unit housing, casing, or support means
C219S544000
Reexamination Certificate
active
07372006
ABSTRACT:
Heating devices are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The ratio of the weight of the conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers to the weight of the base resin host is between about 0.20 and 0.40. The micron conductive powders are formed from non-metals, such as carbon, graphite, that may also be metallic plated, or the like, or from metals such as stainless steel, nickel, copper, silver, that may also be metallic plated, or the like, or from a combination of non-metal, plated, or in combination with, metal powders. The micron conductor fibers preferably are of nickel plated carbon fiber, stainless steel fiber, copper fiber, silver fiber, or the like.
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Campbell Thor S.
Integral Technologies, Inc
Schnabel Douglas
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