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:
Jun. 23, 2020
Filed:
Sep. 12, 2014
Applicants:
United Technologies Corporation, Hartford, CT (US);
Mitsubishi Heavy Industries America, Inc., New York, NY (US);
Inventors:
Hoyt Y. Chang, Jr., Manchester, CT (US);
Yusuke Ichihashi, Komaki, JP;
Yohei Fujimoto, New York, NY (US);
Timothy Dale, Manchester, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/24 (2006.01); F01D 25/14 (2006.01); F23R 3/00 (2006.01);
U.S. Cl.
CPC ...
F01D 25/24 (2013.01); F23R 3/002 (2013.01); F01D 25/14 (2013.01); F05D 2250/20 (2013.01); F05D 2250/712 (2013.01); F05D 2250/713 (2013.01); F05D 2260/941 (2013.01); F23R 2900/00005 (2013.01); Y02T 50/671 (2013.01);
Abstract
A case is provided for a gas turbine engine. The case includes a wall defining a through-hole. The case also includes first and second pockets adjacent to, and on opposite sides, of the through hole. A method of reducing stress in a case of a gas turbine engine is also provided that includes reducing stress about a through-hole by providing a concavity on each side of the through-hole.