Vacuum firing porcelain furnace

Details Vacuum firing porcelain furnace Vacuum firing porcelain furnace

1981-01-30

1982-06-01

Camby, John J.

Heating

Work chamber having heating means

Work chamber having gaseous material supply or removal...

266250, 432206, 373141, F27B 504, F27B 1100

Patent

active

043325530

ABSTRACT:
A furnace having an easily disassembled vacuum chamber to facilitate muffle replacement. The muffle is located over pins on the vacuum chamber base and is held against the base by a leaf spring between the muffle and the vacuum chamber top. The cylindrical wall of the vacuum chamber is correctly located with respect to the muffle by upright spacer bars upstanding from the vacuum chamber base about the periphery of the cylindrical wall. The spacer bars further serve to tie the top and base of the vacuum chamber together and against the cylindrical wall. The furnace is bottom loaded and has a door seal carried by the base so that the seal is not exposed to the direct heat from the muffle when the door is opened.

REFERENCES:
patent: 2266735 (1941-12-01), Berghaus et al.
patent: 2354127 (1944-07-01), Krauscope et al.
patent: 3128326 (1964-04-01), Hintenberger
patent: 3403212 (1968-09-01), Sato
patent: 3441652 (1969-04-01), Eicker

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