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Walter F. Praeg
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Palos Park, IL, US
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last 30 patents
Information
Patent Grant
Apparatus for efficient sidewall containment of molten metal with h...
Patent number
5,954,118
Issue date
Sep 21, 1999
Arch Development Corporation
Walter F. Praeg
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Electromagnetic confining dam for continuous strip caster
Patent number
5,695,001
Issue date
Dec 9, 1997
Inland Steel Company
Kenneth E. Blazek
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Apparatus for efficient sidewall containment of molten metal with h...
Patent number
5,601,140
Issue date
Feb 11, 1997
Arch Development Corporation
Walter F. Praeg
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Sidewall containment of liquid metal with horizontal alternating ma...
Patent number
5,385,201
Issue date
Jan 31, 1995
Arch Development Corporation
Walter F. Praeg
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Apparatus and method for sidewall containment of molten metal with...
Patent number
5,251,685
Issue date
Oct 12, 1993
Inland Steel Company
Walter F. Praeg
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Molten metal feed system controlled with a traveling magnetic field
Patent number
4,993,477
Issue date
Feb 19, 1991
The United States of America as represented by the United States Department o...
Walter F. Praeg
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Electromagnetic confinement for vertical casting or containing molt...
Patent number
4,982,796
Issue date
Jan 8, 1991
Arch Development Corp.
Robert J. Lari
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Sidewall containment of liquid metal with vertical alternating magn...
Patent number
4,974,661
Issue date
Dec 4, 1990
Arch Development Corp.
Robert J. Lari
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Electromagnetic confinement and movement of thin sheets of molten m...
Patent number
4,905,756
Issue date
Mar 6, 1990
United States Department of Energy
Robert J. Lari
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Horizontal electromagnetic casting of thin metal sheets
Patent number
4,741,383
Issue date
May 3, 1988
The United States of America as represented by the United States Department o...
John R. Hull
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Horizontal electromagnetic casting of thin metal sheets
Patent number
4,678,024
Issue date
Jul 7, 1987
The United States of America as represented by the United States Department o...
John R. Hull
B22 - CASTING POWDER METALLURGY