| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Gas powered fluid gun with recoil mitigation | US14055829 | 2013-10-16 | US09272296B1 | 2016-03-01 | Mark C. Grubelich; Gerold Yonas |
| A gas powered fluid gun for propelling a stream or slug of a fluid at high velocity toward a target. Recoil mitigation is provided that reduces or eliminates the associated recoil forces, with minimal or no backwash. By launching a quantity of water in the opposite direction, net momentum forces are reduced or eliminated. Examples of recoil mitigation devices include a cone for making a conical fluid sheet, a device forming multiple impinging streams of fluid, a cavitating venturi, one or more spinning vanes, or an annular tangential entry/exit. | ||||||
| 82 | COOLING DEVICE FOR COOLING COMBUSTION GASES FROM RECOILLESS ANTI-TANK WEAPONS | US13811036 | 2010-07-22 | US20130160427A1 | 2013-06-27 | Lars Nilsson |
| The present invention relates to a cooling device (2) for cooling combustion gases from a rocket motor (1) in an antitank weapon. The cooling device (2) comprises a coolant reservoir (3, 21) containing a coolant (4). The coolant reservoir (3, 21) is arranged such that the coolant (4) is transferred from the coolant reservoir (3, 21) to the combustion gases in the gas outlets (6) of the rocket motor (1) in response to a pressure increase in the rocket motor (1). The coolant reservoir (3, 21) constitutes an integral part of the rocket motor (1) and is connected to the combustion chamber (7) by at least two gas inlets (8) for pressurization of the coolant (4). The coolant reservoir is furthermore connected to the rocket motor nozzle (9) by at least two coolant outlets (10) for transfer of coolant (4) from the coolant reservoir (3, 21) to the rocket motor nozzle (9). | ||||||
| 83 | Countermass weapon | US12554051 | 2009-09-04 | US08220376B2 | 2012-07-17 | Richard Jonsson |
| A countermass weapon including a launching tube open or openable in both ends. The launching tube houses a launchable unit, a countermass, a pressure chamber, a propellant charge that upon firing and combustion of the charge in cooperation with the pressure chamber and the countermass accelerates the launchable unit forwards in the tube at the same time as the countermass accelerates backwards in the tube, and a firing and supporting unit connected to the outside of the launching tube. The countermass is designed such that a forward directed recoil is obtained and the launching tube is designed to be disengageable from the firing and supporting unit during the forward directed recoil. | ||||||
| 84 | INNER-BALLISTIC FOR RECOILLESS WEAPON | US13201571 | 2009-02-16 | US20110296977A1 | 2011-12-08 | Christer Regebro |
| The present invention relates in general to a recoilless weapon (1) and, in particular to a new high- and low pressure system for recoilless weapons (1). The invention provides a recoilless weapon (1) comprising a launch tube (2) open at muzzle (3) and breech (4) ends thereof, a projectile (5) and a counter mass (6) residing in said recoilless weapon (1), the recoilless weapon (1) further comprises a high pressure part (7) containing a propellant charge (8) for propelling the projectile (5) and the counter mass (6) out of the launch system (1), a low pressure part (9) containing the counter mass (6), a blocking element (16) in the rear part of the launch tube (2) and gas-openings (10) between the high pressure part (7) and the low pressure part (9) The invention is characterized in that the projectile (5) is positioned in a first start position, where the projectile (5) is blocking the gas-openings (10) and where the projectile (5), upon ignition of the propellant charge (8), moves to further positions (12′) in the launch tube (2), where the gas-openings, successively, are unblocked by the projectile (5). | ||||||
| 85 | WEAPON SYSTEM | US12336789 | 2008-12-17 | US20110005375A1 | 2011-01-13 | Rolf PETTERSSON; Eje Lantz; Lars Ax; Kent Norgren |
| A modular weapon system of a preloaded recoilless gun including a barrel provided with a shell, a propellant charge and a countermass. The weapon system is configured in two parts including a first part of the barrel and a second part of the barrel. The first part of the barrel includes the shell and the second part of the barrel includes the propellant charge and countermass. A releasable locking device interconnects the second part of the barrel with the first part of the barrel. | ||||||
| 86 | Countermass and countermass weapon | US11357191 | 2006-02-21 | US07823497B2 | 2010-11-02 | Jonas Östberg; Åke Jansson |
| A countermass for use in a weapon to balance the forces arising when a launch able unit is launched from a launcher tube of the weapon. The countermass includes a first container enclosing a liquid. A countermass weapon includes a launcher tube open or openable in both ends. The launcher tube houses a launch able unit, a countermass including a first container enclosing a liquid, a pressure chamber, and a propellant charge that upon firing and combustion of the charge in cooperation with the pressure chamber and the countermass accelerates the launch able unit forwards in the tube at the same time as the countermass accelerates backwards in the tube. The first container is made of a non-rigid material. A second container is provided to cover or almost cover the first container. The second container is designed with damping characteristics. | ||||||
| 87 | METHOD OF CONFIGURING WEAPON | US11653939 | 2007-01-17 | US20100031809A1 | 2010-02-11 | Eje Lantz; Kent Norgren; Lars Ax |
| A method of configuring a preloaded anti-armour weapon of the disposable type and including a countermass container in transport mode for restraining a shell loaded in a barrel of the weapon. The countermass container is replaced with a locking ring and the loaded barrel is placed in a first compartment and the countermass container is placed in a second compartment of a transport box. | ||||||
| 88 | System and method for low signature launch of projectile | US10390755 | 2003-03-19 | US20040020350A1 | 2004-02-05 | Zeev Ritman |
| A method and a device for the launching of a projectile is disclosed. A front and aft plate are coupled to an expansion vessel having an axis so that when the volume of the expansion vessel increases the pistons move in opposing directions along the axis. A projectile is so disposed that it is launched in a desired direction by the motion of the front plate. The motion of the plates along the axis is limited in that the two plates are connected to each other by an extendible coupling structure. | ||||||
| 89 | Triple-tube, dispersible countermass recoilless projectile launcher system | US09784105 | 2001-02-16 | US20020112601A1 | 2002-08-22 | Matthew J. Sanford; Gregory D. DuChane |
| A recoilless projectile launcher system has a projectile residing in a launch tube with a propellant charge coupled to the aft end of the projectile. A first tube is slidingly fitted in the launch tube, is coupled to the aft end of the projectile, and encases the propellant charge. The first tube has a first portion extending from the propellant charge and a second portion extending from the first portion towards the breech end. The first portion has a constant inside diameter while the second portion has a reduced inside diameter relative to the constant inside diameter of the first portion. A piston, slidingly fitted in the first portion of the first tube, is positioned adjacent the propellant charge. A second tube is coupled to the piston and extends towards the launch tube's breech end. The second tube has a constant inside diameter and a constant outside diameter with the constant outside diameter forming a sliding fit with the second portion of the first tube. A dispersible countermass resides in the second tube and is dimensionally stable independent of the second tube. | ||||||
| 90 | Shaped-charge projectile and weapon system for launching such a projectile | US09185068 | 1998-11-03 | US06318273B1 | 2001-11-20 | Jean-Luc Renaud-Bezot; Jean-Marie Montigny; Marc Reuche |
| A projectile (3) to be launched by a marksman toward a target using a launch device, the projectile comprising a shaped-charge warhead (14) whose axis (38) coincides with that of the projectile, initiation of which is caused by an igniter (17). The projectile is characterized by a shaped charge which generates a core, and igniter (17) initiates the shaped charge along the trajectory and at a given distance from the launch device so that the marksman is protected from projectile explosions. | ||||||
| 91 | Dispersible countermass system for a recoilless weapon | US359607 | 1994-12-20 | US5551330A | 1996-09-03 | Marc Reuche |
| A dispersible countermass system for a recoilless weapon, designed to be installed in a weapon barrel and to be ejected on firing through a rear portion thereof by a piston driven by the pressure of the combustion gases of a propellant charge while a projectile is simultaneously being launched towards the front portion of the barrel, the system comprising a charge of dispersible and inert matter disposed inside a case that is closed by a cover and by an end, wherein the case is formed by a cylindrical wall that fits inside the barrel and that is prevented from moving in translation relative thereto, and wherein the cover is connected to the case via connection means that are ruptured by the piston on firing, the case serving to guide the piston which has a peripheral rim that remains in contact with the case so as to provide sealing for the gases, the piston thus serving to eject the inert matter from the barrel. | ||||||
| 92 | Device for firing a projectile | US30206 | 1994-03-17 | US5515767A | 1996-05-14 | Robert J. Gilbert |
| A device for firing a projectile for de-arming purposes, comprises a barrel for housing a projectile and an explosive charge. A sleeve surrounds the barrel, so as to define an annular chamber accommodating solid or liquid recoil absorbing material. Radial ports interconnect the barrel and the annular chamber so that when the projectile is fired the annular chamber is pressurized and the recoil absorbing material is expelled rearwardly from the chamber, so as to counteract recoil. | ||||||
| 93 | System for anchoring a projectile launcher to the ground | US090175 | 1993-07-19 | US5345853A | 1994-09-13 | Roger Crepin; Thierry Bredy |
| An anchoring system for anchoring a projectile launcher to the ground. The launcher includes a tubular body accommodating at least a projectile to be fired and a propellant charge. The system further includes least one anchoring element that penetrates the ground when the projectile is fired. The anchoring element can be moved between a first position in which it is at a distance from the ground and held by a body of the launcher by means of a temporary attachment device, and a second position in which it penetrates the ground. A control system causes the anchoring spike to move automatically from its first to its second position and is constituted by the pressure of the gases resulting from ignition of propellant charge. | ||||||
| 94 | Countermass for recoilless weapons | US916104 | 1992-07-29 | US5337648A | 1994-08-16 | Anders N. Brage |
| A countermass for a recoilless weapon which is intended to be placed behind the propellant charge of the weapon projectile and intended to depart together with the propellant gases that exit from the rearward end of the weapon when the projectile is projected forward. The countermass includes a plurality of mutually sequential and separated countermass bodies, each of which has a gas throughflow passage. The throughflow passage in the countermass bodies is sized to have a larger inlet area in bodies at the forward end of the countermass and gradually smaller inlet area in bodies at the rearward end of the countermass. | ||||||
| 95 | Energy absorbing arrangements | US944765 | 1986-12-22 | US4759430A | 1988-07-26 | Arthur Kalin |
| In e.g. a projectile launcher, an arresting sleeve (12) absorbs energy by deformation, which is necessary to arrest a piston (15) from which a counter-mass or a projectile is ejected. The counter-mass (17) should be dispersed as rapidly as possible on exit, in order not to endanger those in the vicinity of the gunner. According to the invention the arresting sleeve (12) has annular peripheral grooves (13,14) on its outer face and also on its inner face of equilateral triangular cross-section, and the piston (15) has a cartridge (16) holding the counter-mass (17), which at its forward end has a greater wall thickness than at its rearward end. | ||||||
| 96 | Apparatus for recoilless firing of projectiles from a lauching tube | US930916 | 1986-11-17 | US4676136A | 1987-06-30 | Arthur Kalin |
| An apparatus for recoilless firing of projectiles from a launching tube comprises within the launching tube a forward brake ring, a forward sabot, a propellant charge with an ignition element or screw, a rear sabot, a counter-mass, and a rear brake ring, arranged within the launching tube in the sequence listed. Upon ignition of the propellant charge, high acceleration forces are created by the ensuing high peak pressures, which consequently requires a robust construction. In order to avoid this drawback, according to the invention the aforementioned disadvantage can be eliminated by using a propellant charge comprising a first cylindrical propellant charge body and a second annular propellant charge body which surrounds this first cylindrical propellant charge body. | ||||||
| 97 | Projectile for recoilless weapon | US513681 | 1983-07-14 | US4484524A | 1984-11-27 | Marcel L. Dawant; Pierre Guillemain |
| There is disclose a round of ammunition for a recoilless weapon of the type having a launch tube which is open at both ends, comprising a projectile, a propulsive charge positioned behind the projectile, a countermass positioned behind the propulsive charge, and a linking means connecting the countermass to the projectile. The linking means is formed of a plurality of small rigid linking rods of low mass and high ballistic coefficient fixed to the peripheral region of the countermass and on retaining elements located on the rear end of the projectile. The retaining elements are designed to shear during the launching of the projectile when the tensile load exerted on the retaining elements by the linking rods exceeds a predetermined level. | ||||||
| 98 | Projectile-firing weapons | US193598 | 1980-10-03 | US4406209A | 1983-09-27 | Francois Arene; Bernard Castagner; Jean-Serge Peyroux |
| A projectile-firing weapon wherein the firing of the projectile is brought about, at least partly, by the unfolding of a flexible bag under the effect of a pressure within the bag. | ||||||
| 99 | Method and device for launching missiles particularly antitank projectiles | US38211773 | 1973-07-24 | US3815469A | 1974-06-11 | SCHUBERT J; SCHNABELE W |
| A method of recoilless and concealed launching of missiles, particularly antitank projectiles, from launcher tubes open at both ends, comprises simultaneously accelerating the missile in the firing direction and a countermass in the opposite direction, using an inert, non-expansive and well dividable countermass of high specific gravity in a liquid, jelly-like, pulverulent, granular or mixed form, and imparting to the countermass a considerably higher, for example quadruple, exit velocity than to the missile, the weight and volume of the countermass being so dimensioned as to approximately balance the impulses and momenta at the two outlets. The acoustical and optical signs of the power gas expansion into the open air are prevented by closing the openings at both ends of the launcher tube at the moment the missile and the countermass have been expelled. A device for carrying out this method comprises, within a common pressureresistant tube or with pressure-resistant outer walls of the assembled parts, a missile compartment for receiving the missile and its driving piston, a countermass compartment for receiving the countermass and its driving piston, and a common cross-wall therebetween. The common cross-wall and the respective driving piston limit within the missile compartment a low pressure chamber, and within the countermass compartment, a high pressure chamber In these chambers, appropriately dimensioned power gas developing charges are placed or pressure gas is supplied therein from an outside source. The low pressure chamber may also be supplied with power gas from the high pressure chamber, through throttle openings which may be provided in the common cross-wall and, moreover, may be closed by inserts of fusible material permitting a control of the pressure development. To prevent signs of pressure gas expansion into the open air, the driving pistons in their outer positions close both ends of the device by abutting against annular stops. To simplify the recharge, the countermass compartment alone or together with the missile compartment are in the form of a preassembled package to be inserted in an outer tube. Also, the countermass compartment may be designed as a pressure-resistant case receiving a countermass quantity for several shots and a corresponding number of missile compartments in the form of launcher tubes may be joined thereto.
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| 100 | Launching device for projectiles | US3800656D | 1971-11-04 | US3800656A | 1974-04-02 | SCHNABELE W |
| A launching device for a projectile comprises a barrel having an interior projectile chamber directly adjacent a muzzle opening at one end. The projectile is positioned behind the muzzle opening and is sealed from a propellant chamber directly behind the projectile chamber by means of a sealing member which permits expansion of the propellant chamber during the discharge of the projectile through the muzzle opening. The sealing member moves outwardly along the interior of the barrel, but is maintained in sealing engagement with the barrel to close off the propulsion chmaber even after firing of the missile. In one embodiment, the sealing member comprises a piston which moves along the interior of the barrel and is retained at the outer end thereof by retaining elements formed inwardly at the muzzle opening. In another arrangement, the sealing means comprises a membrane having its outer edges sealed around the periphery of the end of the barrel at the muzzle opening but extending backwardly to envelop the missile and to seal off the remaining portion of the interior of the barrel from the missile at the propulsion chamber. The propulsion chamber may be sealed at opposite sides by a piston arranged on each side of a propulsion charge or means for generating and introducing high pressure gases between the piston at each end. Instead of a piston, the device may comprise a membrane which is engageable with the barrel or even a flexible member in the form of a bellows which is secured to the interior of the barrel and expands outwardly in one or both directions.
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