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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.:

US 10556269 B1

PDFFull Text
Date of Patent:
Feb. 11, 2020

Filed:

Mar. 29, 2017

Apparatus for and method of making multi-walled passages in components

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:

Kinney & Lange, P.A.

Primary Examiner:

Kevin P Kerns

Int. Cl.
CPC ...
B22C 9/10 (2006.01); B22C 9/04 (2006.01); B22C 9/12 (2006.01); B22D 29/00 (2006.01); B22D 25/02 (2006.01); B22C 3/00 (2006.01); B22C 9/24 (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); F04D 29/32 (2006.01); F04D 29/54 (2006.01); F04D 29/58 (2006.01); F01D 5/18 (2006.01); F01D 9/02 (2006.01); F01D 25/12 (2006.01); B23K 103/12 (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 a refractory metal core includes forming two layers of the core out of a material. The layers are bonded together to form a laminate master pattern, and a flexible mold is formed around the pattern. The pattern is removed from the flexible mold, and pulverulent refractory metal material is poured into the flexible mold. The pulverulent refractory metal material is sintered to form the refractory metal core.

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