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:
May. 25, 2021
Filed:
Dec. 05, 2019
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
John Joseph Marcin, Marlborough, CT (US);
Mark F. Zelesky, Bolton, CT (US);
Joel H. Wagner, Wethersfield, CT (US);
Theodore W. Hall, Berlin, CT (US);
David A. Krause, Tolland, CT (US);
Ben S. Reinert, Tolland, CT (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/10 (2006.01); B22C 9/12 (2006.01); B22C 9/24 (2006.01); B22C 9/04 (2006.01); B22D 25/02 (2006.01); B22D 29/00 (2006.01); B22C 3/00 (2006.01); B22C 7/02 (2006.01); B22F 3/10 (2006.01); B22F 3/24 (2006.01); B22F 7/04 (2006.01); B23K 1/00 (2006.01); B23K 1/19 (2006.01); B23K 103/12 (2006.01); F01D 5/18 (2006.01); F01D 9/02 (2006.01); F01D 25/12 (2006.01); F04D 29/32 (2006.01); F04D 29/54 (2006.01); F04D 29/58 (2006.01);
U.S. Cl.
CPC ...
B22D 25/02 (2013.01); B22C 3/00 (2013.01); B22C 7/02 (2013.01); B22C 9/04 (2013.01); B22C 9/103 (2013.01); B22C 9/108 (2013.01); B22C 9/12 (2013.01); B22C 9/24 (2013.01); B22D 29/002 (2013.01); B22F 3/1017 (2013.01); B22F 3/24 (2013.01); B22F 7/04 (2013.01); B23K 1/0008 (2013.01); B23K 1/19 (2013.01); B22F 2301/20 (2013.01); B22F 2998/10 (2013.01); B23K 2103/12 (2018.08); F01D 5/18 (2013.01); F01D 9/02 (2013.01); F01D 25/12 (2013.01); F04D 29/324 (2013.01); F04D 29/542 (2013.01); F04D 29/582 (2013.01); F05D 2220/32 (2013.01);
Abstract
A method of making an airfoil includes making a refractory metal core that defines an interior of the airfoil by a tomo-lithographic process, making a mold that defines an exterior of the airfoil, inserting the refractory metal core into the mold, and pouring an airfoil material between the refractory metal core and the mold to cast the airfoil.