Matches 1 - 50 out of 182 1 2 3 4 >
Match Document Document Title
7296504 Pyrotechnic actuator of the variable-thrust-acting type  
The technical field of the invention is that of pyrotechnic actuators comprising a piston, the basic function of which is to exert a thrust so as to displace an object by shooting out the piston. ...
7270044 Plasma firing mechanism and method for firing ammunition  
The invention comprises a device and method for firing firearm ammunition using a plasma torch generator. In a particular embodiment, the device relates to the control or management of the rate of...
7254914 Hydrogen operated recreational launcher  
A hydrogen operated gun for shooting projectiles such as a paint pellet. Hydrogen gas is supplied to a combustion chamber and is combusted by a trigger controlled piezo igniter. The hydrogen may be...
6595103 Inertial breechblock gun system  
A contained Davis gun system enables misfire and hang-fire handling for fire out of battery (also known as soft recoil). The gun system decreases structural dynamic activity of the gun barrel...
6374717 Device for provoking an avalanche  
The invention concerns a device ( 10 ) for provoking an avalanche comprising a gas gun ( 12 ) the end of which is fixed to a seat ( 13 ) solidly anchored to the mountain and the downstream end of...
6223642 Cannon for axially fed rounds with breeched round sealing breech chamber  
A projectile firing weapon for firing rounds of the type having a projectile and an associated bore seal which is radially expanded by relative axial displacement between the projectile and the...
6212988 Self sustained detonation apparatus  
A detonation coating apparatus that coats a substrate with a coating powder which is propelled by the products of a detonation. The present invention increases the rate at which the coating is...
6192612 Propulsion device  
A propulsion device including a fuel chamber and barrel constructed with off-the-shelf parts for propelling biodegradable objects. The fuel chamber includes a fuel nozzle actuator for receiving...
6142056 Variable thrust cartridge  
The present invention is a variable thrust cartridge comprising a water-molten aluminum reaction chamber from which a slug is propelled. The cartridge comprises a firing system that initiates a...
6125834 Free-piston cutting machine  
A cutting machine includes a gun barrel for receiving a projectile. A compression tube is disposed in flow communication with the barrel and includes a piston therein. A reservoir is disposed in...
5988039 Weapon simulator  
A collapsible diaphragm covers an exhaust port of a weapon simulator. The weapon simulator containing a combustion chamber with admitted fuel gas, an ignition assembly within the combustion...
5909000 System for shooting using compressed gas  
A shooting system providing a barrel with an open forward end and a closed rear end and a projectile containing a propellant under pressure located in the barrel. A wad in the bore has a forward...
5837920 Break action cannon  
The break action cannon invention disclosed herein enables weaponization and integration of complex fire control systems concurrent with projectile loading operations in a gun system such that...
5771621 Ball pitching machine  
A portable ball pitching machine for projecting a ball uses a combusting gas to drive a piston which compresses air behind a ball and propels the ball through a barrel. A combustible mixture of air...
5650585 Ignitor for use in a liquid monopropellant gas generator  
An initiator, for use in a gas generator, includes an enclosed volume in communication with apertures for introducing liquid propellant and pre-pressurization gas into a propellant ignition...
5646363 Free piston machine  
A free piston machine comprising a cylinder having a first and second closed ends, a piston slidable in the cylinder between the closed ends, a first conduit communicating between a source of gas...
5631436 Gun equipped with down-bore liquid propellant booster stage to increase projectile muzzle velocity  
A booster stage is positioned down-bore from the breech of a gun to contain a charge of liquid propellant that is ignited by the combustion gases of a detonated breech propellant charge trailing...
5608179 Catalytic ignitor for regenerative propellant gun  
An ignitor initiates combustion of liquid propellant in a gun by utilizing a heated catalyst onto which the liquid propellant is sprayed in a manner which mitigates the occurrence of undesirable...
5574244 Hypervelocity cutting machine and method  
A method and machine 14 are provided for cutting a workpiece 12 such as concrete. A gun barrel 16 is provided for repetitively loading projectiles 22 therein and is supplied with a pressurized...
5565642 Compressed gas weapon  
A compressed gas weapon (10) is configured in the breech portion (18) of its barrel (12) to accommodate a projectile (24) in a position of readiness to fire and to reproducibly caliber the...
5533434 Method and system for supplying a device with a volume of hydraulic fluid whose predetermined value according to operating conditions  
A system for supplying a hydraulic fluid to a device such as a combustion chamber of a barrel of a liquid-propellant weapon containing a hydraulic jack including a piston and a cylinder that define...
5528972 Bridge seal  
A bridge seal for a Regenerative Liquid Propulsion Gun System is compressly preloaded into interfacing gun tube cylinder and chamber cylinder seal seats providing an interference fit capable of...
5499567 Distillate fuel oil/air-fired, rapid-fire cannon  
A weapons system that fires projectiles of 20 to 500 millimeters or larger in diameter using a compression-ignition combustion of common fuel oils in conjunction with pre-compressed air as the...
5429030 Hybrid electrothermal light gas gun and method  
A pressurized light gas in a first chamber segment of a light gas gun is heated and highly pressurized by an electric discharge. Solid chemical propellant in a second chamber segment behind and...
5421237 Acceleration apparatus  
The invention relates to an acceleration apparatus comprising an accelerator surrounding an acceleration path with the exception of at least its mouth-side end and an acceleration body which is...
5381722 Liquid propellant weapon  
A liquid-propellant weapon includes an injection system composed of several variable-volume reservoirs in each of which a piston is translationally freely mounted. The reservoirs are made in an...
5359919 Method of confinement of propellants for ignition  
A method for confinement of a gun propellant during the initial stage of ignition provides the ignition by electrical, pyrotechnic, or laser irradiation means. A liquid and or a solid propellant is...
5303633 Shock compression jet gun  
A shock compression jet gun with associated explosive charge assembly. The shock compression jet gun features a breech for storage of the explosive charge assembly, a projectile tube, and an...
5303632 Projectile propelling system  
A projectile propelling system includes a gun barrel filled with a gaseous propulsive mixture, a projectile having a front cone wall and a rear cone wall, and a driver for initially propelling the...
5239930 Hypervelocity sabot  
A sabot for launching a sub-caliber projectile (7) comprising a rearwardly positioned projectile pusher member (1) and a forward support structure (2), the support structure comprises frangible...
5233903 Gun with combined operation by chemical propellant and plasma  
A hybrid gun for launching a projectile by a combined propulsion effect of a chemical propellant and electrothermal energy. The gun comprises a breech-associated electrothermal propulsion energy...
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...
5180878 Gunfire simulator  
A gunfire simulator has a combustion chamber, means for admitting fuel gas to the combustion chamber, inlet valve means for admitting oxygen or an oxygen containing gas to the combustion chamber,...
5149908 Combustion instability suppression in regenerative liquid propellant gun  
A regenerative liquid propellant gun and pertains includes a modified contional fixed bolt extending into a conventional combustion chamber of the regenerative liquid propellant gun. The modified...
5149907 Weapon  
A weapon including a barrel (2), with a charge chamber (5) and an arrangement for delaying a drop in the maximum gas pressure in the barrel after firing of a charge in the chamber, with the...
5140892 Automatic cannon for monergole liquid propellants  
An automatic cannon for a monergole liquid propellant which is designed as a continuously firing drum-type weapon whereby the supply of projectiles, the loading and the dosaging process take place...
5131313 Linear accelerator  
A linear accelerator mounted on a launcher that injects propellant into a launcher behind a projectile causing the projectile to achieve greater distances. The launcher has apertures along its...
5125320 Liquid propellant cannon  
A liquid propellant cannon includes an axially movable pump piston 25 which is exposed to propellant in a propellant chamber. The pump piston has a stroke that is shorter than the total length of...
5121670 Ram accelerator  
The invention comprises a method for ram accelerating a projectile which comprises charging a tube, having an inlet end for accepting the projectile and a muzzle end from which the projectile may...
5115743 Propellant casing assembly for an electrothermic projectile firing device  
A propellant casing assembly for an electrothermic projectile firing device has a casing and an electrically energizable coil disposed in the casing. The coil vaporizes at a predetermined current...
5097743 Method and apparatus for zero velocity start ram acceleration  
A method and apparatus for initiating a ram acceleration of a projectile that is at rest. A projectile (34) is positioned in a starting chamber (14) of a launch tube (12). Starting chamber (14) is...
5079987 Liquid propellant gun  
This invention provides a gun having a combustion chamber (combustor) which is filled with a charge of monopropellant or bi-propellant to less than full volume, (e.g. 30 to 90%) prior to ignition...
5063825 Injection device for fluid propellants for a gun and a fluid propellant gun itself  
An injection device for fluid propellants for a fluid propellant gun. The device includes at least one pump chamber for receiving a propellant, with one pump piston movable in each pump chamber. A...
5063824 Fluid propellant injection device for a gun and a fluid propellant gun itself  
An injection device for fluid propellants for a fluid propellant gun includes at least one pump chamber to accommodate a propellant, a pump piston movable therein and a device for the measured...
5060551 Solution monopropellant for liquid propellant gun application  
A method for firing a liquid propellant gun comprising the steps of injecg a liquid monopropellant made up of ammonia and ammonium perchlorate into a chamber behind the gun projectile and igniting...
5052272 Launching projectiles with hydrogen gas generated from aluminum fuel powder/water reactions  
A method of propelling a projectile from a device by applying a high power pulse of electrical current to a thin metal conductor wire causing the wire to explode and disperse hot spots of molten...
5047098 Liquid propellant  
A liquid propellant for use in a propellant medium combustion chamber of a gun barrel weapon. The liquid propellant is completely decomposed and its combustion velocity is adjusted to the...
5001963 Differential pressure piston-combustion chamber for barreled weapons  
A differential pressure piston-combustion chamber system for barreled or tube-firing weapons or guns with a regeneratively-actuated propellant injection device for the generation of propellant...
4993310 Sealing for the differential pressure piston-fuel chamber systems of firearms  
A sealing arrangement for differential pressure piston-combustion chamber systems, which serve for the generation of propellant gases for barreled firearms from liquid, in particular hypergolic...
4974487 Plasma propulsion apparatus and method  
A projectile is accelerated in a barrel bore by applying a plasma jet to a projectile propelling fluid. The plasma jet is derived from a structure forming a capillary passage having a wall formed...
Matches 1 - 50 out of 182 1 2 3 4 >