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:
Jan. 20, 1981
Filed:
Apr. 22, 1977
Applicant:
Inventors:
Ian J Hazlehurst, Guelph, CA;
David C Willard, Guelph, CA;
Assignee:
Foseco Trading, A.G., Chur, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
222590 ; 222607 ; 266281 ;
Abstract
A tundish has a metal casing, an inner permanent lining, e.g. of refractory brick, an inner expendable lining within the permanent lining and formed of slabs of refractory heat-insulating material, and lining at the impact area of erosion resistant or sacrificial material.