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Title:
MULTI-HOLE, MULTI-EDGE CONTROL PLATE FOR LINEAR SLIDING GATE
Document Type and Number:
WIPO Patent Application WO2003041894
Kind Code:
A3
Abstract:
An assembly of slide gate valve plates are described for use in the casting of molten metal. The assembly includes a fixed plate and sliding plate (1) having a plurality of bores (3a,3b). The extremes of stroke available to the sliding plate produce at least two cutting edges and an emergency shut-off position that is independent of transducers, sensors, or operator judgment. The plate may include oval-shaped bores (3a,3b) for increased shut-off margin (7) or offset bores for improved flow of the molten metal through the pouring channel defined by the alignment of the fixed bore with a sliding bore.

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Inventors:
KING PATRICK DANA (US)
ROSS DOUGLAS HOWARD (US)
Application Number:
PCT/US2002/036120
Publication Date:
May 13, 2004
Filing Date:
November 12, 2002
Export Citation:
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Assignee:
VESUVIUS CRUCIBLE CO (US)
KING PATRICK DANA (US)
ROSS DOUGLAS HOWARD (US)
International Classes:
B22D11/00; B22D41/24; B22D11/10; B22D41/28; (IPC1-7): B22D41/24; B22D41/28
Foreign References:
US5348202A1994-09-20
US4890665A1990-01-02
GB2160803A1986-01-02
EP1103326A12001-05-30
Other References:
PATENT ABSTRACTS OF JAPAN vol. 005, no. 033 (M - 057) 28 February 1981 (1981-02-28)
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