Refractory plate unit with annular centering surface and sliding closure unit assembly incorporating the same
US5074442A · kind A · utility
3Cited by
4References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Nov 30, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D41/34
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A refractory plate unit for use as a sliding plate or as a stationary plate in a sliding closure unit at an opening of a metallurgical vessel includes a refractory plate having therethrough a discharge opening. A metal member is rigidly attached to the refractory plate and has an annular surface centered radially outwardly of the discharge opening and mating with substantially no free play with a complementary surface of a metal frame supporting the refractory plate unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.