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.

Date of Patent:
Oct. 11, 2011

Filed:

Jul. 25, 2008
Applicants:

Michael Francis Xavier Gigliotti, Scotia, NY (US);

Shyh-chin Huang, Latham, NY (US);

Adegboyega Masud Makinde, Niskayuna, NY (US);

Roger John Petterson, Fultonville, NY (US);

Stephen Francis Rutkowski, Duanesburg, NY (US);

Venkat Subramaniam Venkataramani, Clifton Park, NY (US);

Inventors:

Michael Francis Xavier Gigliotti, Scotia, NY (US);

Shyh-Chin Huang, Latham, NY (US);

Adegboyega Masud Makinde, Niskayuna, NY (US);

Roger John Petterson, Fultonville, NY (US);

Stephen Francis Rutkowski, Duanesburg, NY (US);

Venkat Subramaniam Venkataramani, Clifton Park, NY (US);

Assignee:

General Electric Company, Niskayuna, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Shell molds and processes for making the shell molds that exhibit high emissivity in the red and infrared regions. In this manner, thermal resistance within a gap formed between solidifying cast metal and the interior mold surface is decreased. In one embodiment, the facecoat region is formed from a slurry composition comprising an aluminum oxide, a green chromium oxide and a silicon dioxide. In another embodiment, the facecoat region is formed from a slurry composition including zirconium silicate and silica with stucco layer of alumina is included.


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