# US 7,746,264 B1 · Low reflectance infrared camouflage system

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- Number: US 7,746,264 B1
- Document ID: US7746264B1
- Status: Granted
- Kind: B1
- Application number: 05/924,404
- Filed: 1978-07-11
- Granted: 2010-06-29
- Earliest claimed: 1978-07-11
- Assignees: The United States of America as represented by the Secretary of the Air Force
- Inventors: Hyman Kirtchik
- Web page: https://patentgrep.com/patent/US7746264B1

## CPC

- F41H 3/00: Camouflage, i.e. means or methods for concealment or disguise (for vessels B63G8/34, B63G13/02 {; sound camouflage, i.e. simulating gun fire noise, F41A33/04; dummy or decoy targets F41J; chaff per se F41J2/00; ammunition for dispensing chaff F42B5/15, F42B12/70; radar absorbing fabrics H01Q17/005})
- F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL

## Abstract

An infrared camouflage coating system for application to the strategic surfaces of jet engine components comprised of a metal alloy substrate having an oxidized surface and a ferrous sulfide containing silicate glass bonded thereto.

## Claims

### Claim 1

A low reflectance, high temperature infrared camouflage coating system for application to the strategic surfaces of jet engine components in order to reduce their level of emitted energy and render them undetectable by infrared detection devices which comprises:
(a) a metal alloy substrate having an oxidized surface; and
(b) a thin homogenous ferrous sulfide containing silicate glass mixture bonded to said oxidized surface.