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. 15, 2002
Filed:
Jan. 05, 1999
Applicant:
Inventors:
Thomas Margaria, Passy, FR;
Roland Siclari, Liverdun, FR;
Assignee:
Pechiney Electrometallurgie, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
C01B 3/3037 ; B22C 1/00 ; B22C 3/00 ; B22C 9/00 ;
U.S. Cl.
CPC ...
C01B 3/3037 ; B22C 1/00 ; B22C 3/00 ; B22C 9/00 ;
Abstract
Powder product for the protection of molds for centrifugal casting of cast iron tubes, and a method for its production. The powder contains a mixture of a silicon-based inoculating agent and a mineral powder, the silicon-based inoculating product comprising waste masses from synthesis of alkyl- or aryl- halosilanes, from which tin and optionally copper has been removed. The mineral powder may contain at least one material selected from the group consisting of carbon and a fluoride.