IP Library Granted Patent US 12,286,567
Granted Patent B2
US 12,286,567 · App. 18/489,724 · Granted Apr 29, 2025

System for curing a patch

Inventors: Justin H. Register (Charleston, SC); Remmelt Andrew Staal (Irvine, CA)
Assignee: The Boeing Company
C09J5/02B64F5/40
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,286,567
App. No.
18/489,724
Granted
Apr 29, 2025
Kind
B2
Abstract

A method for curing a patch. The method includes generating the patch according to a negative of a scan of a scarf in a composite material. The method also includes pre-curing the patch.

Claims (41)

1. A system comprising:

a computer configured to receive, from a rework facility, shape data from a scan of a scarf in an object comprising a composite material located at the rework facility; and

a lathe tool located at a patch generation facility remote from the rework facility, the late tool in communication with the computer, wherein the lathe tool and the computer are configured to:

create a mandrel based on the shape data, the mandrel comprising a mandrel shape that is a negative of the shape data.

2. The system of claim 1 , further comprising:

a layup tool disposed at the patch generation facility, the layup tool configured to place a composite layup on the mandrel; and

a heater disposed at the patch generation facility, the heater configured to form a pre-cured composite patch by heat-curing the composite layup.

3. The system of claim 2 , further comprising:

a vacuum bag disposed at the patch generation facility, the vacuum bag configured to be placed over the composite layup during heat-curing of the composite layup.

4. The system of claim 2 , further comprising:

a transport system configured to transport the pre-cured composite patch to the rework facility.

5. The system of claim 1 , further comprising:

a scanning tool, located at the rework facility, and configured to scan the scarf, the scanning tool further configured to generate the shape data.

6. The system of claim 1 , further comprising:

a scarf tool, located at the rework facility, and configured to prepare the scarf at an inconsistency on a composite surface of an aircraft.

7. The system of claim 6 , further comprising:

a metrology tool, located at the rework facility, and configured to establish, as part of preparing the scarf, a metrology point with respect to the scarf.

8. The system of claim 7 , further comprising:

a scanning tool, located at the rework facility, and configured to scan the scarf, the scanning tool further configured to generate the shape data.

9. The system of claim 8 , further comprising:

a communication device, located at the rework facility, and configured to transmit the shape data to the patch generation facility.

10. The system of claim 9 , further comprising:

a patch generation tool, located at the patch generation facility, configured to generate a composite patch according to the shape data.

11. The system of claim 10 , further comprising:

wherein the patch generation tool is further configured to generate a counter metrology point on the composite patch.

12. The system of claim 11 , further comprising:

a curing tool, located at the patch generation facility, and configured to pre-cure the composite patch at a first temperature to form a pre-cured composite patch.

13. The system of claim 12 , wherein pre-curing comprises fully curing the composite patch.

14. The system of claim 13 , further comprising:

a transport system configured to transport the pre-cured composite patch to the rework facility.

15. The system of claim 14 , further comprising:

an adhesive application tool configured to apply an adhesive to the scarf.

16. The system of claim 15 , further comprising:

a patch application tool configured to apply the pre-cured composite patch to the adhesive on the scarf, including matching the counter metrology point to the metrology point.

17. The system of claim 16 , further comprising:

a curing tool configured to cure, after applying the pre-cured composite patch to the adhesive, the pre-cured composite patch at a second temperature sufficient to cure the adhesive.

18. The system of claim 17 , wherein the second temperature is less than the first temperature.

19. The system of claim 17 , further comprising:

wherein the first temperature comprises above about 350 degrees Fahrenheit and the second temperature comprises below about 250 degrees Fahrenheit.

20. The system of claim 1 , wherein the mandrel comprises a carbon foam material, and wherein the system further comprises:

a sealing tool configured to seal a surface of the carbon foam material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2024
From: REGISTER, JUSTIN H.; STAAL, REMMELT ANDREW
To: THE BOEING COMPANY
Reel/Frame 068025/0750 →
Continuity (3)
Division 17529079 · Nov 17, 2021
Provisional Application 63145839 · Feb 4, 2021
Related Publication 20240067847A1 · Feb 29, 2024
References Cited (16)
US 10350839B2 · Safai · 2019 [cited by applicant]
US 20030188821A1 · Keller · 2003 [cited by examiner]
US 20050008862A1 · Joseph · 2005 [cited by examiner]
US 20110139344A1 · Watson · 2011 [cited by applicant]
US 20140196833A1 · Byron · 2014 [cited by applicant]
US 20140295124A1 · Suhara et al. · 2014 [cited by applicant]
US 20170008184A1 · Tomblin · 2017 [cited by examiner]
US 20190275755A1 · Ihn · 2019 [cited by examiner]
US 20210060879A1 · Varghese · 2021 [cited by examiner]
US 20220118617A1 · McCay · 2022 [cited by examiner]
EP 1782942A1 · 2007 [cited by examiner]
EP 2527415A1 · 2012 [cited by applicant]
EP 3095595A1 · 2016 [cited by applicant]
WO 2017081456A · 2017 [cited by applicant]
WO WO2017081456 · 2017 [cited by examiner]
Whittingham, B., et al. “Micrographic Studies on Adhesively Bonded Scarf Repairs to Thick Composite Aircraft Structure.” Composites Par A: Applied Science and Manufacturing, Aug. 31, 2008, 14 pages. [cited by applicant]