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| Number | Title | Issue Date |
| 7963203 | Rifle A rifle with an upper receiver and a barrel attached to the upper receiver and including a bolt carrier, and operating, buffer, and cooling systems. The operating system includes a cylinder and a piston coupled to receive propelling gases from the barrel. As the pis... | 06/21/2011 |
| 7415918 | Fume extractor This invention relates to a fume extractor (10) for extracting fumes from a bore (12) of a barrel (14) of a gun and comprising an annular main reservoir (16); an annular inlet reservoir (18); and an annular auxiliary reservoir (... | 08/26/2008 |
| 7363741 | Hand guard assembly for firearms A hand guard assembly for a firearm including a barrel. The assembly includes a tubular unitary body mounted to surround a portion of the barrel substantially coaxially and in a transversely spaced relationship. The tubular body includes a plurality of air flow open... | 04/29/2008 |
| 7353740 | Rapid adjust muzzle system A gun barrel adaptor includes a body having a central bore therethrough and including a flange, the flange having a hole therethrough, the body having a lower side on one side of the flange and an upper side on another side of the flange; a flat spring attached to a... | 04/08/2008 |
| 7207252 | Determining cook-off time of weapon Determining cook-off time for a weapon is disclosed. A method determines a first barrel temperature next to a first energetic, such as a propellant charge, of ammunition within a gun barrel, and determines a second barrel temperature next to a second energetic, such... | 04/24/2007 |
| 7182014 | Gun barrel for launching projectiles A gun barrel that can be used to fire projectiles. The gun barrel may be used in satellite-launching operations, in artillery operations, or in fire-fighting operations. The gun barrel has an outer support layer, an inner support layer lining the bore of the gun bar... | 02/27/2007 |
| 7152357 | Composite firearm barrel assemblies A firearm barrel includes an elongate metal insert member and a rigid sleeve surrounding the insert member along a majority of the length of the insert member. A casing is formed around at least a portion of the sleeve, preferably by injection molding. Breech and mu... | 12/26/2006 |
| 7143821 | Apparatus for cooling metal tubes A cooler for one or a plurality of metal tubes with a cooler housing having intake vents, a powered turbine, at least one exhaust holes and metal tube supports. The one or a plurality of metal tubes received by metal tube supports and positioned to receive coolant f... | 12/05/2006 |
| 7143644 | Device for collecting statistical data for maintenance of small-arms A system and method for collecting data on small-arms usage in the form of a device which is mounted to the firearm so as to be able to sense at least an impulse in the firearm due to firing. The device is mounted to the gun so as to detect impulses due to firing. A... | 12/05/2006 |
| 7100437 | Device for collecting statistical data for maintenance of small-arms A device for collecting data on small-arms usage that senses when a shot has been fired from a gun using its acceleration, acoustic noise or RF emissions; measures the interval between shots so that the firing rate may be determined; measures the time at which each ... | 09/05/2006 |
| 7066072 | Determining cook-off time of weapon Determining cook-off time for a weapon is disclosed. A method determines a first barrel temperature next to a first energetic, such as a propellant charge, of ammunition within a gun barrel, and determines a second barrel temperature next to a second energetic, such... | 06/27/2006 |
| 7036261 | Holding devices to attach an accessory to a firearm A holding device to attach one or more accessories to a firearm is disclosed. An example holding device disclosed herein comprises a top mount to engage one or more accessories, a bottom mount to engage the firearm, a fixing bore in one of the top mount and the bott... | 05/02/2006 |
| 7025165 | Device to reduce the visible and infrared signature of a military vehicle A device to reduce the visible and infrared signature of a military combat vehicle by diluting the engine's exhaust and cooling gases. The device includes a caisson receiving both sources of heat flow to ensure a single outlet for both the exhaust gases and the cool... | 04/11/2006 |
| 6945154 | Finned carbine handguard assembly A gun barrel handguard includes half sections having longitudinally spaced apart fins of plastic material positioned around the exterior of the gun barrel for absorbing heat but preventing it from being quickly transmitted to the exterior of the handguard. ... | 09/20/2005 |
| 6885332 | Multi-piece gun barrel shroud system The present invention is a multi-piece barrel shroud which provides IR signature and radar backscatter reduction over the entire length of the barrel by utilization of special radar absorbing materials and shaped in accordance with commonly known radar signature red... | 04/26/2005 |
| 6705195 | Method and apparatus for gun barrel cooling Apparatus for cooling the barrel of a gun having a receiver configured to receive a magazine, has a housing dimensionally similar to a magazine for insertion into the receiver and contains a fan including a fan motor and shroud with an air inlet and outlet. An elect... | 03/16/2004 |
| 6694660 | Rifle handguard system with integrated barrel nut A handguard system for use on a rifle having a barrel and a receiver, the hand guard system includes a barrel nut having an inner surface with a threaded portion adapted to threadably engage the receiver for securing the barrel to the receiver and an oute... | 02/24/2004 |
| 6679156 | Weapon with rotating barrel A weapon for firing a projectile is provided that includes a receiver within which is disposed a loading mechanism for loading and unloading the weapon. A feed system supplies the loading mechanism with ammunition and a firing mechanism releases the loadi... | 01/20/2004 |
| 6508159 | Heat sink for firearm barrels and method for attachment and use A firearm heat sink is provided that may be easily affixed to, and removed from, a firearm. The heat sink is provided with a plurality of cooling fins. In a preferred embodiment, the firearm heat sink is held in place by a cooperating collet and ring on e... | 01/21/2003 |
| 6461752 | Portable electric generator with thermal electric co-generator The invention is an electric generator comprising a portable electric generator and a thermal electric co-generator. The co-generator converts heat produced by the portable electric generator into electricity. In one embodiment of the present invention, t... | 10/08/2002 |
| 6314857 | Weapon barrel A weapon barrel includes a liner having first and second circumferential regions; a jacket surrounding the liner; and an arrangement for effecting a heat transfer outwardly from the liner at a greater rate from the first circumferential region than from t... | 11/13/2001 |
| 6311602 | Device for cooling gun barrels of firearms The service life of gun barrels of firearms with a high cyclic rate can be extended by means of the cooling device of the invention. To this end, coolant (7) is conveyed from a reservoir (6) into a pressure cylinder (10) by drawing up a hydraulic cylinder... | 11/06/2001 |
| 6178769 | Cooling apparatus for the breech region of a weapon barrel A cooling apparatus for introducing a coolant fluid into a weapon barrel through a breech end thereof for cooling internal wall faces of a loading chamber of the barrel. The cooling apparatus includes a bellows having a circumference provided with a plura... | 01/30/2001 |
| 6167794 | Gun barrel vibration absorber A weapon system includes a gun barrel and a vibration absorber fitted onto a free end of the gun barrel. The vibration absorber includes a compliant energy storage device, such as a spring, and a mass secured to the energy storage device. The potential en... | 01/02/2001 |
| 6142057 | Tubular weapon A tubular weapon with a weapon tube (1) guided inside a cradle tube (2) which is mounted stationary in axial direction. In order to provide such a tubular weapon with a cooling system (12) between the weapon tube and the cradle tube (1, 2) and to avoid th... | 11/07/2000 |
| 5915937 | Primarily independent composite/metallic gun barrel A substantially nonbonded composite/metallic gun barrel is disclosed. The gun barrel has a metallic liner and a composite casing disposed thereabout. Unlike composite/metallic gun barrels of the prior art, the embodiments of the present invention provide ... | 06/29/1999 |
| 5837921 | Gun barrel with integral midwall cooling A composite gun barrel 10 with active cooling having a breech end and a dharge end. The barrel includes an outer jacket 11 having radially inwardly projecting ports 15 proximate the breech end 25 extending inwardly from the outer diameter of the jacket, ... | 11/17/1998 |
| 5726375 | Gun barrel shrouding system A gun barrel shrouding system is capable of significantly reducing the infrared signature of a gun barrel, without directly cooling the gun barrel. A shroud is placed around the gun barrel, but the shroud does not contact the gun barrel. Air is circulated... | 03/10/1998 |
| 5703318 | Artillery gun mount A gun mount system is described which is capable of firing long range protiles under rapid firing conditions with gun tube and recoil system replaceability under field conditions.... | 12/30/1997 |
| 5692334 | Primarily independent composite/metallic gun barrel A substantially nonbonded composite/metallic gun barrel is disclosed. The gun barrel has a metallic liner and a composite casing disposed thereabout. Unlike composite/metallic gun barrels of the prior art, the embodiments of the present invention provide ... | 12/02/1997 |
| 5650586 | Anti buckle fitting An anti-buckle fitting for a large caliber gun barrel, the fitting being constituted by an envelope that surrounds the barrel at a distance therefrom and of a length that is substantially equal to the outside portion of the barrel, the fitting comprising ... | 07/22/1997 |
| 5475940 | Firearm with gas-escape port A firearm. The rear end of the barrel is directly adjacent to the frontmost point traveled by a slide. The slide travels back and forth inside the weapon's housing. The outside of the barrel is fastened directly or by way of an intermediary to a housing. ... | 12/19/1995 |
| 5400691 | Rigid thermal sleeve for a gun barrel A rigid thermal sleeve 5 mountable over at least part of a gun barrel 3 in such a way that it is symmetrical about a longitudinal plane A--A to provide a reduced thermal image and radar cross section. The sleeve 5 comprises thermally insulating material 1... | 03/28/1995 |
| 5245905 | Continuous bore evacuation system A continuous bore evacuation system for aspirating the noxious gas products associated with the firing of tank rounds and for cooling all or part of the gun barrel between rounds. The bore evacuator employs an annular container which is fixed to the exter... | 09/21/1993 |
| 5202530 | Light armor piercing automatic rifle A light armor piercing weapon, which is hand carried by a single man, is provided for firing or launching armor piercing rocket propelled projectiles. A propellent pack is worn or carried by the soldier along with a launching rifle. Unsymmetrical dimethyl... | 04/13/1993 |
| 5198600 | Mount for rifle A mount for rifles is provided, located under the barrel to allow the rifles to carry accessories such as lights, lasers, grenade and flare launchers thereon which mount fits existing rifle configurations without modification to the basic rifle components... | 03/30/1993 |
| 5189245 | Thermally and mechanically stable muzzle reference system collimator assembly A thermally and mechanically stable muzzle reference system collimator asbly. The assembly comprises a muzzle reference system collimator and an adaptor plate to adapt the muzzle reference system collimator to the muzzle of a gun. The muzzle reference sy... | 02/23/1993 |
| 5117734 | Rifle bore cooler A rifle bore cooler is disclosed which is designed to be removably attachable to the end of a rifle barrel. The device includes a ventilating fan which may be battery powered and which may be selectively activated to either blow ambient air into the rifle... | 06/02/1992 |
| 5062346 | Heat protective covering for a pipe and a rod-shaped article, especially for gun barrels The heat protective covering comprises at least two concentric and cylindrical plate layers (6, 7) fixedly mounted round for instance a gun barrel (1). Rows of holes (12, 13, 14, 15) are shaped along and in, respectively, the upper and lower lines of gene... | 11/05/1991 |
| 5060552 | Rail guns A rail gun (10) comprising two spaced apart elongate co-extensive rail electrodes (11,12) having confronting surfaces which are of toothed cross-section configuration. Alternate tooth flanks (21) have the outlets of a plurality of nozzles (24) located the... | 10/29/1991 |
