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:
Aug. 09, 1977
Filed:
Jul. 02, 1976
Applicant:
Inventors:
Rene N Mahr, Howald-Hesperange, LU;
Aloyse J Engel, Schouweiler, LU;
Assignee:
S.A. Des Anciens Etablissements Paul Wurth, Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
214 / ; 193 / ; 222564 ;
Abstract
The service life of the components of a bell-less shaft furnace charging installation is enhanced by controlling the trajectory of charge material delivered thereto to obtain an essentially entirely vertical discharge from a discharge funnel through a feed channel to the furnace. Also, erosion of the wall of the discharge funnel is minimized by creating an annular build up of charge material about the discharge end of the funnel, the material build up extending along the funnel wall to at least the impact region of freely falling charge material delivered thereto.