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:
Aug. 18, 2009
Filed:
Oct. 15, 2003
James T. Beals, West Hartford, CT (US);
Joshua Persky, Manchester, CT (US);
Dilip M. Shah, Glastonbury, CT (US);
Venkat Seetharaman, Rocky Hill, CT (US);
Sudhangshu Bose, Manchester, CT (US);
Jacob Snyder, Southington, CT (US);
Keith Santeler, Middletown, CT (US);
Carl Verner, Windsor, CT (US);
Stephen D. Murray, Marlborough, CT (US);
John Marcin, Marlborough, CT (US);
Dinesh Gupta, South Windsor, CT (US);
Daniel A. Bales, Avon, CT (US);
Daniel Francis Paulonis, Higganum, CT (US);
Glenn Cotnoir, Thompson, CT (US);
John Wiedemer, Glastonbury, CT (US);
James T. Beals, West Hartford, CT (US);
Joshua Persky, Manchester, CT (US);
Dilip M. Shah, Glastonbury, CT (US);
Venkat Seetharaman, Rocky Hill, CT (US);
Sudhangshu Bose, Manchester, CT (US);
Jacob Snyder, Southington, CT (US);
Keith Santeler, Middletown, CT (US);
Carl Verner, Windsor, CT (US);
Stephen D. Murray, Marlborough, CT (US);
John Marcin, Marlborough, CT (US);
Dinesh Gupta, South Windsor, CT (US);
Daniel A. Bales, Avon, CT (US);
Daniel Francis Paulonis, Higganum, CT (US);
Glenn Cotnoir, Thompson, CT (US);
John Wiedemer, Glastonbury, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A refractory metal core for use in a casting system has a coating for providing oxidation resistance during shell fire and protection against reaction/dissolution during casting. In a first embodiment, the coating includes at least one oxide and a silicon containing material. In a second embodiment, the coating includes an oxide selected from the group of calcia, magnesia, alumina, zirconia, chromia, yttria, silica, hafnia, and mixtures thereof. In a third embodiment, the coating includes a nitride selected from the group of silicon nitride, sialon, titanium nitride, and mixtures thereof. Other coating embodiments are described in the disclosure.