Metal member with annular centering surface
US5139237A · kind A · utility
3Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1991 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Aug 15, 2011 |
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 a circular 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.