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:
Nov. 26, 2024
Filed:
Oct. 31, 2019
Applicant:
Siemens Energy Global Gmbh & Co. KG, Munich, DE;
Inventors:
Assignee:
SIEMENS ENERGY GLOBAL GMBH & CO. KG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22C 9/10 (2006.01); B22D 27/04 (2006.01); B22D 29/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C04B 35/10 (2006.01); C04B 41/53 (2006.01); C04B 41/91 (2006.01);
U.S. Cl.
CPC ...
B22C 9/10 (2013.01); B22D 27/045 (2013.01); B22D 29/002 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); C04B 35/10 (2013.01); C04B 41/5353 (2013.01); C04B 41/91 (2013.01); C04B 2235/3217 (2013.01);
Abstract
A ceramic core () for an investment casting process () including a subsurface internal channel () for the introduction of leachate () to improve the effectiveness of a leaching process used to remove the core () from a cast alloy component (). The subsurface internal channel may be completely hollow, or it may include one or more ribs (). The core may be formed () using a 3D printing process wherein a carrier material () is deposited in a central region of the channel for the purpose of supporting an overlying layer () of core material, with the carrier material later being removed to reveal the hollow internal channel ().