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. 01, 2008
Filed:
Oct. 25, 2004
Andrew Jay Skoog, West Chester, OH (US);
Jane Ann Murphy, Middletown, OH (US);
John Michael Jasany, Cincinnati, OH (US);
Aaron Dennis Gastrich, Loveland, OH (US);
Timothy Lance Manning, Cincinnati, OH (US);
Andrew Jay Skoog, West Chester, OH (US);
Jane Ann Murphy, Middletown, OH (US);
John Michael Jasany, Cincinnati, OH (US);
Aaron Dennis Gastrich, Loveland, OH (US);
Timothy Lance Manning, Cincinnati, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A high emissivity (Hi-E) coating for use on the exhaust baffles of HIRSS systems. HIRSS systems were developed to reduce the infrared (IR) signature of helicopter engines. Increasing operating temperatures of helicopter engines have made the HIRSS systems less effective. An infrared coating applied over selected portions of the HIRSS reduces the IR of the system. The Hi-E coating comprises, in weight percent, 30-80% refractory oxide pigment, 5-20% binder, 1-15% potassium oxide, optionally up to about 15% glass-forming material and the balance refractory oxide powder. When applied to provide a surface finish of 1100Rmicroinches or coarser, the coated HIRSS has a significantly reduced hemispherical reflectance in the IR frequency range.