The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 1988
Filed:
May. 19, 1987
Daniel Rellis, Jr, Lansing, IL (US);
Roger J Glennon, Munster, IN (US);
Inland Steel Company, Chicago, IL (US);
Abstract
A vertical conduit extends from the bottom of a ladle containing molten metal and terminates at a lower end above a tundish for receiving the molten metal. A vertical shroud encloses the vertical conduit from a location above the conduits's lower end, and the shroud extends into the tundish. A nozzle extends into the interior of the shroud for feeding alloying ingredient, as shot, into a stream of the molten metal, within the shroud. Structure is provided for circulating a cooling fluid through the nozzle. The nozzle is connected to flexible feed lines for transporting shot and cooling fluid to the nozzle. Additional structure is provided for preventing the flexible feed lines from bending, twisting, kinking or the like when the nozzle, shroud and vertical conduit are rotated about a vertical axis spaced from the center line of the vertical conduit.