Metallurgical apparatus – With recording – indicating – inspection or measuring means – Having observation means
Reexamination Certificate
2011-01-18
2011-01-18
Kastler, Scott (Department: 1793)
Metallurgical apparatus
With recording, indicating, inspection or measuring means
Having observation means
C266S099000
Reexamination Certificate
active
07871559
ABSTRACT:
An inspection hole structure1forming a furnace inspection hole2installed on the reaction shaft ceiling104of a flash smelting furnace, comprising a lower-stage water-cooling jacket3A having an opening3Aa at the center; an upper-stage water-cooling jacket3B which is connected integrally to an upper part of said lower-stage water-cooling jacket3A and forms said inspection hole2at the center in cooperation with said lower-stage water-cooling jacket3A; and a bottom cover water-cooling jacket4provided in said lower-stage water-cooling jacket3A to open or close said opening of said lower-stage water-cooling jacket3A.
REFERENCES:
patent: 3478236 (1969-11-01), Tyrrell
patent: 2009/0165684 (2009-07-01), Arakane et al.
patent: 3381241 (2002-12-01), None
Miyamoto Kenji
Ohno Masakazu
Tsuchie Yasuhiro
Wakayama Masahiro
Kastler Scott
Pan Pacific Copper Co., Ltd.
Panitch Schwarze Belisario & Nadel LLP
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