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:
Feb. 07, 2023
Filed:
Mar. 30, 2021
Applicant:
Raytheon Technologies Corporation, Farmington, CT (US);
Inventors:
John R. Paulus, Afton, VA (US);
Roy Eakins, Gold Canyon, AZ (US);
Richard A. Hawkins, Waynesboro, VA (US);
Assignee:
RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C 9/10 (2006.01); B22C 1/14 (2006.01); B22C 7/02 (2006.01); C08L 29/04 (2006.01);
U.S. Cl.
CPC ...
B22C 9/10 (2013.01); B22C 1/14 (2013.01); B22C 7/02 (2013.01); C08L 29/04 (2013.01);
Abstract
A core forming method is provided for forming a core. The core forming method includes forming one or more mold parts of water-soluble polymer (WSP), each mold part including a bond area and a part forming area, moistening the bond areas, bonding the mold parts together with the bond areas moistened and the part forming areas aligned to form a cavity shaped as a negative of the core, injecting a slurry, which is non-reactive with the WSP, into the cavity and removing the WSP with water once the slurry is cured.