Kjell Bergman

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Vasteras, SE

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Patents Grantslast 30 patents

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Direct current melting furnace with control of deflection of the el...
- Patent number 5,383,218
- Issue date Jan 17, 1995
- Danieli & C. Officine Meccanicue SpA.
- Kjell Bergman
- F27 - FURNACES KILNS OVENS RETORTS
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Slag-melt reactions with improved efficiency
- Patent number 4,778,518
- Issue date Oct 18, 1988
- ASEA AB
- Kjell Bergman
- C21 - METALLURGY OF IRON
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Hollow arc electrode
- Patent number 4,754,463
- Issue date Jun 28, 1988
- ASEA AB
- Kjell Bergman
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Control system for a DC arc furnace
- Patent number 4,607,373
- Issue date Aug 19, 1986
- ASEA AB
- Kjell Bergman
- C21 - METALLURGY OF IRON
Information Patent Grant
DC Arc furnace hearth connection
- Patent number 4,577,326
- Issue date Mar 18, 1986
- Asea Aktiebolag
- Kjell Bergman
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for temperature control of inductors
- Patent number 4,481,639
- Issue date Nov 6, 1984
- Asea Aktiebolag
- Ake Archenholtz
- G05 - CONTROLLING REGULATING
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Apparatus for positioning an electric arc furnace electrode
- Patent number 4,473,903
- Issue date Sep 25, 1984
- Asea Aktiebolag
- Kjell Bergman
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR