Furnace tray with carbon plate

Details Furnace tray with carbon plate Furnace tray with carbon plate

1981-02-27

1983-09-20

Camby, John J.

Heating

Processes of heating or heater operation

Including apparatus purging, cleaning or accretion preventing

432198, 432258, 432259, F24D 2302, F27B 504, F27D 500

Patent

active

044053002

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.

REFERENCES:
patent: 1573543 (1926-02-01), Fitzgerald
patent: 3958924 (1976-05-01), Egenoff et al.
patent: 4264803 (1981-04-01), Shinko

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