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:
Mar. 27, 1984
Filed:
Jun. 20, 1983
Applicant:
Inventor:
Gary F English, Conneaut, OH (US);
Assignee:
Foseco International Limited, Birmingham, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21B / ;
U.S. Cl.
CPC ...
266 44 ; 266281 ; 264 30 ;
Abstract
A hollow, disposable former for use in forming a lining in a metallurgical vessel e.g. a ladle for holding molten metal comprises a plurality of connected adjacent wall portions of drywall having dimensions and configurations to provide an outer surface which corresponds to the desired inner surface of the lining to be formed. Preheating the vessel prior to its use for containing molten metal decomposes and collapses the disposable former thus rendering removal of the former unncessary