Metallurgical vessel

Details Metallurgical vessel Metallurgical vessel

2008-04-29

2008-04-29

Kastler, Scott (Department: 1793)

Metallurgical apparatus

Means for holding or supporting work

Receptacle

C266S242000

Reexamination Certificate

active

11142230

ABSTRACT:
A metallurgical vessel having a cylindrical upper end section and a top section fitted to the upper end of another section to form a top closure of the vessel about a central opening through which to extend a gas injection lance for injecting gas into the vessel. Top section is formed as a two-part domed construction comprising an outer annular panel welded to the vessel top section and an inner annular panel removably fastened to outer panel, both panels being formed with inwardly concave curvature so as to form together the continuously domed top section. The two panels are fastened together by clamping bolts extended through outturned flanges formed on annular flanges standing up from the panels. On release of bolts panel is removable to provide access to the interior of the vessel.

REFERENCES:
patent: 4575394 (1986-03-01), Nixon
patent: 6267799 (2001-07-01), Innes et al.
patent: 6322745 (2001-11-01), Leigh et al.
patent: 6565798 (2003-05-01), Gurr et al.
patent: WO-96/31627 (1996-10-01), None
patent: WO-00/01854 (2000-01-01), None

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