Patent · US Expired

Fireproof plate and a clamping device for a sliding gate at the outlet of a vessel containing molten metal

US6092701A · kind A · utility

9Cited by

6References

14Claims

0Family size

Assignees

Stopinc Aktiengesellschaft · CH
Didier-Werke AG · DE

Inventors

Rolf Waltenspuhl · Hünenberg, CH
Hans Rothfuss · Wiesbaden, DE
Werner Keller · Steinhausen, CH

Key dates

Filing date	Feb 5, 1999
Grant date	Jul 25, 2000
Priority date	—
Expiry date	Feb 5, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22D41/28
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A refractory plate for a sliding gate valve at the outlet of a vessel containing molten metal has a polygonal external shape and has a longitudinal axis, on both sides of which at least two side surfaces, disposed at an obtuse angel (.gamma.) to one another, extend and serve as clamping surfaces of the plate in a metallic frame (11) or the like. The shorter side surfaces are arranged to extend at an angle (.alpha.) of between 20.degree. and 50.degree. to the longitudinal axis while the longer side surfaces are arranged to extend at an angle (.beta.) of between 10.degree. and 30.degree. to the longitudinal axis. The refractory plate can thus be optimally clamped and an increased service life is thus consequently achieved.

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