Patent · US Expired

Head or slide plate for a molten-metal slide gate

US4241905A · kind A · utility

2Cited by

2References

4Claims

0Family size

Assignee

Martin & Pagenstecher, Inc. · DE

Inventors

Eckehard Eisermann · Grefrath, DE
Dieter Beckers · Neunkirchen, DE

Key dates

Filing date	Jul 9, 1979
Grant date	Dec 30, 1980
Priority date	—
Expiry date	Jul 9, 1999

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22D41/36
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A head or slide plate for a molten-metal slide gate is formed by a refractory plate having an opening and a refractory ring positioned in the opening, with a ring of tar between the peripheries of the opening and refractory ring and which is isolated from the plate surfaces excepting for a passage filled with a porous refractory and through which the vaporized tar migrates to one of the slide surfaces when the plate and ring are heated by contact with the molten metal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.