Invention Grant
- Patent Title: Multi-functional layer for stop etch in laser coating removal
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Application No.: US17498270Application Date: 2021-10-11
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Publication No.: US12036623B2Publication Date: 2024-07-16
- Inventor: Mark W. Knight , Patrick W. Shindo , Connor Limburg , Jesse Tice
- Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
- Applicant Address: US VA Falls Church
- Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
- Current Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
- Current Assignee Address: US VA Falls Church
- Agency: Shumaker, Loop & Kendrick LLP
- Agent John A. Miller
- Main IPC: B23K26/00
- IPC: B23K26/00 ; B05D5/06 ; B05D7/00 ; B23K26/362 ; B64C1/12 ; B64F5/40

Abstract:
An aircraft skin coating assembly for an aircraft. The coating assembly includes a primer layer deposited on the aircraft skin, an optical stop-etch layer deposited on the primer layer that is reflective at a predetermined wavelength, a coating stack-up deposited on the optical etch-stop layer that provides performance features for the aircraft, and a sealant layer deposited on the stack-up. When a laser coating removal process employing a laser beam is used to remove the coating stack-up for replacement, the stop-etch layer reflects the laser beam to prevent it from penetrating and possibly damaging the aircraft skin.
Public/Granted literature
- US20230113120A1 MULTI-FUNCTIONAL LAYER FOR STOP ETCH IN LASER COATING REMOVAL Public/Granted day:2023-04-13
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