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:
Feb. 03, 1987
Filed:
Sep. 24, 1985
Applicant:
Inventors:
Kazumi Arakawa, Kariya, JP;
Toshiyuki Hirao, Kariya, JP;
Kenji Sugiura, Kariya, JP;
Satoshi Kuroki, Kariya, JP;
Sei Hiraki, Amagasaki, JP;
Takao Suzuki, Amagasaki, JP;
Ken Nakai, Ibaragi, JP;
Assignees:
Toshiba Ceramics Co., Ltd., Tokyo, JP;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ;
U.S. Cl.
CPC ...
164440 ; 164490 ; 164138 ; 222591 ; 222594 ;
Abstract
A silicon aluminum oxynitride containing refractory for use in continuous casting is placed between a mold and a tundish and is formed by sintering an admixture of silicon nitride (Si.sub.3 N.sub.4), aluminum nitride (AlN), boron nitride(BN), and a mineral clay. The refractory further includes aluminum oxide(Al.sub.2 O.sub.3).