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:
Aug. 25, 1987
Filed:
Sep. 25, 1985
Edward R Gamberg, Saverna Park, MD (US);
Eutectic Corporation, Flushing, NY (US);
Abstract
A flux cored tubular metallic arc cutting electrode having a low carbon steel tube and a compacted core composition consisting of a particulate reactant metal such as magnesium, aluminum, zirconicum, titanium and alloys of at least two of the particulate reactant metals, mixed with an exothermically reactable metal oxide. Preferably the metal oxide is an iron group oxide such as iron oxide or nickel oxide. The particulate reactant metal is characterized by a free energy of formation of its oxide referred to 25.degree. C. of at least 100,000 calories per gram atom of oxygen, the exothermically reactable metal oxide being characterized by a free energy of formation not exceeding 90,000 calories per gram atom of oxygen referred to 25.degree. C. Additionally the electrode can contain an additive such as an arc stabilizer, a fluxing agent, a deoxidizer or a gas former.