IP Library Granted Patent US 7,834,799
Granted Patent B1
US 7,834,799 · App. 12/154,601 · Granted Nov 16, 2010

System and method for fabricating composite laminate structures with co-laminated radar absorbing material

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Quick Facts
Patent No.
US 7,834,799
App. No.
12/154,601
Granted
Nov 16, 2010
Kind
B1
Abstract

Various embodiments provide systems and methods for fabricating composite laminate structures with co-laminated radar absorbing material. An example embodiment includes providing a component part fabricated from composite laminate and having an inside surface and an outside surface; providing a portion of radar absorbing material (RAM) having an inside surface and an outside surface; positioning the outside surface of the component part against the inside surface of the portion of RAM to form an assembly; and applying pressure to the assembly thereby causing the portion of RAM to bond to the outside surface of the component part.

Claims (35)

1. A method comprising:

providing a component part fabricated from composite laminate and having an inside surface and an outside surface;

providing a portion of radar absorbing material (RAM) having an inside surface and an outside surface;

positioning the outside surface of the component part against the inside surface of the portion of RAM to form an assembly; and

applying pressure to the assembly thereby causing the portion of RAM to bond to the outside surface of the component part.

2. The method as claimed in claim 1 further including applying an adhesive between the portion of RAM and the component part.

3. The method as claimed in claim 1 further including applying an adhesive film to the inside surface of the portion of RAM.

4. The method as claimed in claim 1 wherein the portion of RAM overlaps only a portion of the component part.

5. The method as claimed in claim 1 wherein an edge of the portion of RAM is tapered.

6. The method as claimed in claim 1 wherein the portion of RAM is made from a non-electrically conductive polymer with dispersed particles of conductive particles.

7. The method as claimed in claim 1 wherein the component part is made from composite layers of polymer or resin-impregnated fibers.

8. The method as claimed in claim 1 including applying pressure to the assembly using a vacuum bag.

9. The method as claimed in claim 1 including reinforcing the assembly with a screw or rivet.

10. A method comprising:

providing a first component part fabricated from composite laminate and having an inside surface and an outside surface;

providing a second component part fabricated from composite laminate and having an inside surface and an outside surface,

providing a portion of radar absorbing material (RAM) having an inside surface and an outside surface;

positioning the first component part adjacent to the portion of RAM;

positioning the outside surface of the second component part against the inside surface of the portion of RAM and the inside surface of the first component part to form an assembly; and

applying pressure to the assembly thereby causing the portion of RAM to bond to the outside surface of the second component part and an edge of the first component part.

11. An apparatus comprising:

a portion of radar absorbing material (RAM) having an inside surface and an outside surface; and

a component part fabricated from composite laminate and having an inside surface and an outside surface, the outside surface of the component part being pressure bonded to the inside surface of the portion of RAM to form a composite laminate structure with co-laminated radar absorbing material.

12. The apparatus as claimed in claim 11 including an adhesive for bonding the outside surface of the component part to the inside surface of the portion of RAM.

13. The apparatus as claimed in claim 11 wherein the inside surface of the portion of RAM includes an adhesive film.

14. The apparatus as claimed in claim 11 wherein the portion of RAM overlaps only a portion of the component part.

15. The apparatus as claimed in claim 11 wherein an edge of the portion of RAM is tapered.

16. The apparatus as claimed in claim 11 wherein the portion of RAM is made from a non-electrically conductive polymer with dispersed particles of conductive particles.

17. The apparatus as claimed in claim 11 wherein the component part is made from composite layers of polymer or resin-impregnated fibers.

18. The apparatus as claimed in claim 11 including a vacuum bag to pressure bond the inside surface of the portion of RAM to the outside of the component part.

19. The apparatus as claimed in claim 11 including a screw or rivet to reinforce the composite laminate structure with co-laminated radar absorbing material.

20. An apparatus comprising:

a portion of radar absorbing material (RAM) having an inside surface and an outside surface;

a first component part fabricated from composite laminate and having an inside surface and an outside surface, the first component part being positioned adjacent to the portion of RAM; and

a second component part fabricated from composite laminate and having an inside surface and an outside surface, the outside surface of the second component part being pressure bonded to the inside surface of the portion of RAM and the inside surface of the first component part to form a composite laminate structure with co-laminated radar absorbing material.

Assignments (13)
SECURITY INTEREST Recorded Mar 17, 2026
From: FLORIDA TURBINE TECHNOLOGIES INC.; KRATOS ANTENNA SOLUTIONS CORPORATION; KRATOS INTEGRAL HOLDINGS, LLC; KRATOS SRE, INC.; KRATOS TECHNOLOGY & TRAINING SOLUTIONS, INC.; KRATOS UNMANNED AERIAL SYSTEMS, INC.; MICRO SYSTEMS, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 075103/0203 →
RELEASE OF PATENT SECURITY INTEREST RECORDED AT R/F 59664/0917 Recorded Mar 4, 2026
From: TRUIST BANK
To: FLORIDA TURBINE TECHNOLOGIES, INC.; GICHNER SYSTEMS GROUP, INC.; KRATOS ANTENNA SOLUTIONS CORPORATION; KRATOS INTEGRAL HOLDINGS, LLC; KRATOS TECHNOLOGY & TRAINING SOLUTIONS, INC.; KRATOS UNMANNED AERIAL SYSTEMS, INC.; MICRO SYSTEMS, INC.
Reel/Frame 075029/0769 →
RELEASE OF SECURITY INTEREST Recorded Apr 6, 2022
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: CHARLESTON MARINE CONTAINERS, INC.; DIGITAL FUSION, INC.; KRATOS INTEGRAL HOLDINGS, LLC; KRATOS TECHNOLOGY & TRAINING SOLUTIONS, INC.; KRATOS UNMANNED AERIAL SYSTEMS, INC. (F/K/A COMPOSITE ENGINEERING INC.); SAT CORPORATION
Reel/Frame 059616/0001 →
RELEASE OF SECURITY INTEREST Recorded Apr 6, 2022
From: TRUIST BANK, SUCCESSOR BY MERGER TO SUNTRUST BANK, AS COLLATERAL AGENT AND ADMINISTRATIVE AGENT
To: KRATOS INTEGRAL HOLDINGS, LLC; SAT CORPORATION; KRATOS TECHNOLOGY & TRAINING SOLUTIONS, INC.; CHARLESTON MARINE CONTAINERS, INC.; DIGITAL FUSION, INC.; KRATOS UNMANNED AERIAL SYSTEMS, INC. (F/K/A COMPOSITE ENGINEERING, INC.); GICHNER SYTEMS GROUP, INC.; MICRO SYSTEMS, INC.; SECUREINFO CORPORATION
Reel/Frame 059616/0151 →
SECURITY INTEREST Recorded Apr 6, 2022
From: FLORIDA TURBINE TECHNOLOGIES, INC.; GICHNER SYSTEMS GROUP, INC.; KRATOS ANTENNA SOLUTIONS CORPORATON; KRATOS INTEGRAL HOLDINGS, LLC; KRATOS TECHNOLOGY & TRAINING SOLUTIONS, INC.; KRATOS UNMANNED AERIAL SYSTEMS, INC.; MICRO SYSTEMS, INC.
To: TRUIST BANK, AS ADMINISTRATIVE AGENT
Reel/Frame 059664/0917 →
AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Dec 7, 2017
From: KRATOS DEFENSE & SECURITY SOLUTIONS, INC.; AI METRIX, INC.; AIRORLITE COMMUNICATIONS, INC.; AVTEC SYSTEMS, INC.; BSC PARTNERS, LLC; CARLSBAD ISI, INC.; CHARLESTON MARINE CONTAINERS INC.; DALLASTOWN REALTY I, LLC; DALLASTOWN REALTY II, LLC; DEFENSE SYSTEMS, INCORPORATED; DEI SERVICES CORPORATION; DFI REALTY, LLC; DIGITAL FUSION SOLUTIONS, INC.; DIGITAL FUSION, INC.; DIVERSIFIED SECURITY SOLUTIONS, INC.; DTI ASSOCIATES, INC.; GENERAL MICROWAVE CORPORATION; GENERAL MICROWAVE ISRAEL CORPORATION; GICHNER SYSTEMS GROUP, INC.; GICHNER SYSTEMS INTRERNATIONAL, INC.; HAVERSTICK CONSULTING, INC.; HAVERSTICK GOVERNMENT SOLUTIONS, INC.; HENRY BROS. ELECTRONICS, INC.; HENRY BROS. ELECTRONICS INC.; HENRY BROS. ELECTRONICS, L.L.C.; HGS HOLDINGS, INC.; JMA ASSOCIATES, INC.; KPSS GOVERNMENT SOLUTIONS, INC; KRATOS COMMUNICATIONS, INC.; KRATOS DEFENSE & ROCKET SUPPORT SERVICES, INC.; KRATOS INTEGRAL HOLDINGS, LLC; KRATOS INTEGRAL SYSTEMS INTERNATIONAL, INC.; KRATOS PUBLIC SAFETY & SECURITY SOLUTIONS, INC.; KRATOS SOUTHEAST, INC.; KRATOS SPACE & MISSILE DEFENSE SYSTEMS, INC.; KRATOS SYSTEMS AND SOLUTIONS, INC.; KRATOS TECHNOLOGY & TRAINING SOLUTIONS, INC.; KRATOS TEXAS, INC.; KRATOS UNMANNED AERIAL SYSTEMS, INC.; KRATOS UNMANNED SYSTEMS SOLUTIONS, INC.; LVDM, INC.; MADISON RESEARCH CORPORATION; MICRO SYSTEMS, INC.; MSI ACQUISITION CORP.; POLEXIS, INC.; REAL TIME LOGIC, INC.; REALITY BASED IT SERVICES LTD.; ROCKET SUPPORT SERVICES, LLC; SAT CORPORATION; SCT ACQUISITION, LLC; SCT REAL ESTATE, LLC; SECUREINFO CORPORATION; SHADOW I, INC.; SHADOW II, INC.; SUMMIT RESEARCH CORPORATION; WFI NMC CORP.; KRATOS SOUTHWEST L.P.
To: SUNTRUST BANK
Reel/Frame 044742/0845 →
SECURITY INTEREST Recorded Dec 1, 2017
From: AIRORLITE COMMUNICATIONS, INC.; CHARLESTON MARINE CONTAINERS, INC.; DIGITAL FUSION, INC.; HENRY BROS. ELECTRONICS, INC. (DE); HENRY BROS. ELECTRONICS, INC. (NJ); KRATOS INTEGRAL HOLDINGS, LLC; KRATOS TECHNOLOGY & TRAINING SOLUTIONS, INC.; KRATOS UNMANNED AERIAL SYSTEMS, INC.; GICHNER SYSTEMS GROUP, INC.; MICRO SYSTEMS, INC.; SAT CORPORATION; SECUREINFO CORPORATION
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 044593/0678 →
RELEASE OF SECURITY INTEREST Recorded Nov 21, 2017
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: AIRORLITE COMMUNICATIONS, INC.; CHARLESTON MARINE CONTAINERS INC.; KRATOS UNMANNED AERIAL SYSTEMS, INC.; DIGITAL FUSION, INC.; GENERAL MICROWAVE CORPORATION; HENRY BROS. ELECTRONICS, INC.; KRATOS INTEGRAL HOLDINGS, LLC; KRATOS TECHNOLOGY & TRAINING SOLUTIONS, INC.; KRATOS DEFENSE & SECURITY SOLUTIONS, INC.; SECUREINFO CORPORATION
Reel/Frame 044195/0924 →
CHANGE OF NAME Recorded Nov 14, 2017
From: COMPOSITE ENGINEERING, INC.
To: KRATOS UNMANNED AERIAL SYSTEMS, INC.
Reel/Frame 044752/0867 →
SECURITY INTEREST Recorded Jan 30, 2015
From: AIRORLITE COMMUNICATIONS, INC.; CHARLESTON MARINE CONTAINERS INC.; COMPOSITE ENGINEERING, INC.; DIGITAL FUSION, INC.; GENERAL MICROWAVE CORPORATION; HENRY BROS. ELECTRONICS, INC.; KRATOS INTEGRAL HOLDINGS, LLC; KRATOS TECHNOLOGY & TRAINING SOLUTIONS, INC.; KRATOS DEFENSE & SECURITY SOLUTIONS, INC.; SECUREINFO CORPORATION
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 034861/0796 →
RELEASE OF SECURITY INTEREST Recorded Jun 17, 2014
From: KEYBANK NATIONAL ASSOCIATION
To: COMPOSITE ENGINEERING, INC.
Reel/Frame 033188/0729 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Feb 12, 2013
From: COMPOSITE ENGINEERING, INC.
To: KEYBANK NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 029801/0285 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 28, 2008
From: WELLS, CLIFF
To: COMPOSITE ENGINEERING, INC.
Reel/Frame 021312/0286 →