Furnace tray with carbon plate
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United States of America Patent
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-
Sep 20, 1983
Grant Date -
N/A
app pub date -
Feb 27, 1981
filing date -
Feb 27, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A furnace tray for supporting tooth pegs used in the manufacture of false teeth, dental prostheses and the like comprises a refractory tray base member having a carbon plate receiving recess in its upper surface. A carbon plate is positioned in the recess and dental prostheses supported by tooth pegs are placed on the upper surface of the plate. The tray with the carbon plate and the dental prostheses thereon are then placed in a furnace and the teeth are fired. During the firing process the interior of the furnace is simultaneously purged by the carbon.
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