The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 1978
Filed:
Oct. 21, 1976
Applicant:
Inventors:
Paul Metz, Luxembourg, LU;
Robert Schockmel, Esch, Alzette, LU;
Desire Nick, Differdange, LU;
Paul Pfeiffer, Esch, Alzette, LU;
Assignee:
Acieries Reunies de Burbach-Eich-Dudelange S.A. Arbed, Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 19 ; 65-1 ; 65141 ; 65142 ; 264-8 ; 264 15 ; 425-8 ;
Abstract
Expanded slag, especially blast-furnace slag of Thomas melts is made by passing the slag along a trough in which water is fed into a layer of the molten slag. The slag is then permitted to cascade downwardly along an inclined surface which is wetted with water and finally is dispersed by a rotating disintegration drum and curtain of finely divided water. The expanded slag has a lower density, a more complete expansion characteristic and a greater uniformity than conventionally produced expanded slags.