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. 30, 1990
Filed:
Sep. 12, 1988
Applicant:
Inventors:
Stephen C Libby, Bowling Green, OH (US);
G Edward Graddy, Jr, Murrysville, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ; B22C / ; B22D / ; B28B / ; B29C / ;
U.S. Cl.
CPC ...
428 341 ; 106 3822 ; 106 3835 ; 106120 ; 164123 ; 164138 ; 164487 ; 164529 ; 264225 ; 264234 ; 264344 ; 264345 ; 428469 ; 428471 ; 428703 ;
Abstract
An asbestos-free insulating material suitable for use as a header in molten metal casting. The material is made from a dry mixture comprising lime, siliceous component, delaminated vermiculite or spodumene or lithium aluminate or mixtures thereof, and optionally, wollastonite and organic fiber. The dry mixture is mixed with water to form a slurry, shaped, heated in the presence of steam, and dried to remove free water.