Concept Group (West Berlin, NJ) is developing the Insulon® Thermal Cloak™ heat barrier for use on automatic weapons. The barrier, which is attached to the fore-end of the weapon, uses a hair-thin Shaped Vacuum™ layer to halt the convection of heat and prevent thermal imagers from seeing the barrel and gas tube after firing. Thermal imagers can “see” heat coming off a weapon long after firing, even though the soldier is in complete darkness. The new Insulon thermal cloaking technology eliminates this risk. A tube whose wall contains a hair-thin Shaped Vacuum layer surrounds the barrel and gas tube. It can completely stop the convection of heat, cloaking the weapon’s barrel and gas tube with a virtually impenetrable thermal shield. Even though the weapon’s fore-end parts are extremely hot –– hundreds of degrees –– the outside of the Insulon Thermal Cloak remains at ambient temperature, virtually invisible to thermal imagers.
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