Electric resistance heating devices – Heating devices – Radiant heater
Reexamination Certificate
2006-04-28
2011-12-06
Campbell, Thor S (Department: 3742)
Electric resistance heating devices
Heating devices
Radiant heater
C392S411000, C392S416000
Reexamination Certificate
active
08073315
ABSTRACT:
A radiant heating for heating the building material in a laser sintering device and a laser sintering device having such a radiant heating are described. The radiant heating has a sheet-like heat radiating element (113, 213, 313), which is characterized in that it is made of a material, that has a low thermal inertia with a thermal diffusivity of preferably more than 1.5·10−4m2/s and preferably has a thickness of 2 mm or less.
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Campbell Thor S
EOS GmbH Electro Optical Systems
McDonnell Boehnen & Hulbert & Berghoff LLP
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