Patent search ap:("RAYTHEON TECHNOLOGIES CORPORATION") AND inv:"David Brayshaw" Page 1

1.

发明申请
SYSTEMS, FORMULATIONS, AND METHODS FOR REMOVAL OF CERAMIC CORES FROM TURBINE BLADES AFTER CASTING 有权

公开(公告)号：US20220266333A1

公开(公告)日：2022-08-25

申请号：US17713386

申请日：2022-04-05

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Lei Jin , Ryan C. Breneman , David Brayshaw

IPC: B22D29/00 , C23F11/12

Abstract: A solution is provided and includes a strong base, a corrosion inhibitor, wherein the strong base is an alkali metal hydroxide, wherein the corrosion inhibitor is at least one of an organic acid having a-COOH functional group or an alkali metal salt of one of an organic acid having a-COOH functional group.

2.

发明授权
Systems, formulations, and methods for removal of ceramic cores from turbine blades after casting 有权

公开(公告)号：US12042855B2

公开(公告)日：2024-07-23

申请号：US17713386

申请日：2022-04-05

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Lei Jin , Ryan C. Breneman , David Brayshaw

IPC: B22D29/00 , C23F11/12

CPC classification number: B22D29/002 , B22D29/003 , C23F11/124

Abstract: A solution is provided and includes a strong base, a corrosion inhibitor, wherein the strong base is an alkali metal hydroxide, wherein the corrosion inhibitor is at least one of an organic acid having a-COOH functional group or an alkali metal salt of one of an organic acid having a-COOH functional group.

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