Industrial electric heating furnaces – Induction furnace device – Coreless
Reexamination Certificate
2005-12-06
2005-12-06
Hoang, Tu (Department: 3742)
Industrial electric heating furnaces
Induction furnace device
Coreless
C373S165000
Reexamination Certificate
active
06973116
ABSTRACT:
The invention relates to a method and a device for equalizing the pressures in the melting chamber and in the cooling water system of a special melting unit, for example a pressure electroslag remelting (PESR) unit having a copper ingot mold, or a pressure induction furnace having an induction coil and a cooling water system, designed as a closed, separate pressure circuit.
REFERENCES:
patent: 3995687 (1976-12-01), Euler
patent: 4301320 (1981-11-01), Hochstrasser et al.
patent: 6790254 (2004-09-01), Feichtinger et al.
patent: 37 21 945 (1988-05-01), None
Niebling Arno
Popov Ivaylov
Ald Vacuum Technologies AG
Fulbright & Jaworski L.L.P.
Hoang Tu
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