Patent · US Expired

Method of making a grate plate

US6266883A · kind A · utility

5Cited by

6References

16Claims

0Family size

Assignee

Krupp Polysius AG · DE

Inventors

Otto Heinemann
Hermann Niemerg · Ennigerloh, DE
Norbert Bredenholler · Oelde, DE
Ludger Brentrup · Oelde, DE

Key dates

Filing date	Jul 9, 1999
Grant date	Jul 31, 2001
Priority date	—
Expiry date	Jul 9, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/496
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A method of forming a grate plate for installation as part of a grate assembly in which free flowing abrasive material is supported for movement along a path while treatment gas flows upwardly through such material. The grate plate includes a relatively thin carrier plate modified to present a highly wear resistant upper surface, the carrier plate having slots formed therein through which treatment gas flows for passage through the material. The method is one which is economical even though the carrier plate itself is formed from relatively expensive material.

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