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:
Dec. 07, 2021
Filed:
Aug. 16, 2019
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventors:
Imelda P. Smyth, North Palm Beach, FL (US);
Xia Tang, West Hartford, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/08 (2006.01); F01D 25/24 (2006.01); C04B 41/85 (2006.01);
U.S. Cl.
CPC ...
C04B 41/85 (2013.01); F01D 11/08 (2013.01); F05D 2220/32 (2013.01); F05D 2230/90 (2013.01); F05D 2240/55 (2013.01); F05D 2300/6033 (2013.01);
Abstract
A blade outer air seal has at least one internal surface and a layer atop the at least one internal surface. The layer has: a matrix comprising at least one of hafnium silicate (HfSiO) and zirconium silicate (ZrSiO), ytterbium disilicate (YbSiO); and barium magnesium alumino silicate (BMAS) or other alkaline earth aluminosilicate.