Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2006-10-31
2006-10-31
Picard, Leo (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C705S028000
Reexamination Certificate
active
07130712
ABSTRACT:
Steel making is a batch production process in which batches of 250 tons, called charges or heats, are grouped together in a single production run, called a cast. Because of fixed costs and downtime associated with cleanup and setup between casts, a cast of less than three charges is likely to be inefficient. As a result, short-run orders (such as, for example, orders of less than 750 tons) may present efficiency problems. The present invention transforms the operation from a make-to-order model to a make-to-stock model, enabling orders to be clustered based on considerations such as grade and geometry to maximize the number of clusters that satisfy the cast-size constraint.
REFERENCES:
patent: 5897624 (1999-04-01), Ramaswamy
patent: 6321132 (2001-11-01), Dawande et al.
patent: 6684117 (2004-01-01), Bacin et al.
patent: 2001/0049634 (2001-12-01), Stewart
patent: 2003/0078765 (2003-04-01), Hoffmaster
patent: 2003/0101107 (2003-05-01), Agarwal et al.
patent: 2003/0195648 (2003-10-01), Bacin et al.
patent: 2004/0158340 (2004-08-01), Fischer et al.
patent: 2005/0060246 (2005-03-01), Lastinger et al.
Barnes et al., “A simulation model for production scheduling of a facility in a process industry”, 1990, Proceedings of the winter simulation conference, pp. 609-613.
Lee et al., “Primary production scheduling at steelmaking industries”, 1996, IBM J. Res., pp. 1-22.
Ghosh Soumyadip
Kalagnanam Jayant Ramarao
International Business Machines - Corporation
Kaufman Stephen C.
Picard Leo
Rapp Chad
Whitham Curtis Christofferson & Cook PC
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