Refractory crucibles capable of managing thermal stress and suitable for melting highly reactive alloys

US8062581B2 · kind B2 · utility

Inventors

• Bernard Patrick Bewlay · Niskayuna, US
• Michael Francis Xavier Gigliotti · Scotia, US
• Mohamed Rahmane · Clifton Park, US
• Thomas Joseph Kelly · Cincinnati, US
• Michael James Weimer · Loveland, US
• Sairam Sundaram · Guilderland, US

Key dates

• Filing date: Nov 30, 2007
• Grant date: Nov 22, 2011
• Expiry date: May 20, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/25
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Refractory crucibles capable of managing thermal stress and suitable for melting highly reactive alloys having a facecoat, a backing, and at least one retaining ring applied about at least a portion of the backing of the crucible, the retaining ring comprising a composition selected from the group consisting of conductive materials, non-conductive materials, and combinations thereof.