Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Reexamination Certificate
2008-05-27
2008-05-27
King, Roy (Department: 1793)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
C241S018000, C241S023000
Reexamination Certificate
active
07377955
ABSTRACT:
A substantially dry and dust free method of recovering ladle slag is allowing hot ladle slag to cool to powder form in a controlled environment and collecting the powder in a receiver therefor. A vessel having a chamber containing in an upper portion a screen through which ladle slag can pass into a receiver below and means for cooling the slag in the vessel are provided.
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Patent Abstracts of Japan, vol. 007, No. 118 (C-167), May 21, 1983 & JP 58 039715 A (Sumitomo Kinzoku Kogyo KK), Mar. 8, 1983 abstract.
Patent Abstracts of Japan vol. 010, No. 318 (C-381), Oct. 29, 1986 & JP 61 127787 A (Ishikawajima Harima Heavy Ind Co Ltd), Jun. 16, 1986 abstract.
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Fisch Rephael
Shaw Daniel Jonathan
Caesar Rivise Bernstein Cohen & Pokotilow Ltd.
King Roy
McGuthry-Banks Tima M
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