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. 01, 1991
Filed:
Feb. 10, 1989
Applicant:
Inventor:
David C Willard, Freeport, BS;
Assignee:
Sudamet, Ltd., , BS;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; B32B / ; F27D / ;
U.S. Cl.
CPC ...
264 30 ; 264 36 ; 264 81 ; 266281 ; 427140 ; 427423 ; 501 88 ;
Abstract
A method of increasing the life of tuyere area refractories through repeated application of coherent refractory mass formed by ceramic welding process onto worn area after installing protective removable, expendable or reuseable pipes/rods. Consecutive use of this process can effectively suspend or reduce or control the wear of the original refractories.