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:
Feb. 02, 1999
Filed:
Dec. 13, 1996
Richard R Watkins, Merrillville, IN (US);
Kenneth M Goodson, Hammond, IN (US);
Nicholas M Rymarchyk, Jr, Baden, PA (US);
LTV Steel Company, Inc., , NJ (US);
Abstract
A steelmaking furnace is cleaned and maintained using a lance which includes an elongated lance body including at least one first nozzle opening proximal to an end that extends into the furnace and at least one other second nozzle opening spaced upwardly from the first nozzle opening. Structure defines at least one passageway extending through the body to the first nozzle opening and to the second nozzle opening. Gas supply means selectively introduces different gases into the passageway. The lance apparatus can be operated to emit either different gases or the same gas from the first and second nozzle openings at the same time. The gases emitted include an oxygen-containing gas and a gas that includes an inert gas.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile