Patent application number | Description | Published |
20090320673 | GUN BARREL - A gun barrel with a gun barrel liner and a breech ring, which are joined with each other by a bayonet thread. A continuous cavity is left between adjacent bayonet ridges of the gun barrel liner and the bayonet ridges of the breech ring that are located axially behind them or in front of them. A locking segment is inserted in at least one of the cavities that is formed in the installed gun barrel liner between adjacent bayonet ridges of the gun barrel liner and the bayonet ridges of the breech ring to prevent unintentional detachment of the gun barrel liner from the breech ring. The locking segment can completely fill the corresponding cavity. | 12-31-2009 |
20100175549 | OBTURATION OF DRUM CANNONS - A seal is proposed between the drum ( | 07-15-2010 |
20100192445 | GUN BARREL FOR FIRING SPIN-STABILIZED PROJECTILES - A gun barrel for locking spin-stabilized projectiles using a driving band and a sealing ring disposed behind the driving band, the gun barrel comprising a breach area, a rifled barrel part, and a transitional cone disposed between the breach area and the rifled barrel part. In order to achieve a reliable initial seal between the projectile and the profile of the rifled barrel part against hot propulsion charge gases, a smooth barrel section is disposed between the transitional cone connected to the breach area and the rifled barrel part, wherein the interior diameter of the smooth barrel section is greater than or equal to the exterior diameter of the driving band, but is approximately equal to the exterior diameter of the sealing ring, wherein the length of the smooth barrel section corresponds to at least the lengths of the driving band and the sealing ring of the projectile. | 08-05-2010 |
20110005376 | TUBE WEAPON - A tube weapon comprises a weapon tube arranged in an exchangeable fashion using screw thread at a breech block of the tube weapon, and a cradle tube in which the weapon tube is axially and displaceably positioned. Despite using screw thread for connecting the weapon tube with the breech block, prevention of axial, and preferably also radial play, are assured, whereby the weapon tube is removable via a cradle tube in the front. The weapon tube is pre-loaded in the stress direction, which occurs with firing stress by a screw thread ring arranged in front at the breech block. The screw thread ring encircles the weapon tube and is preferably partially screwed in detachable fashion into the anterior end of the breech block facing the weapon tube muzzle, and efficiently supports itself, axially, with its anterior end located before the breech block against a collar of the weapon tube. | 01-13-2011 |
20110290103 | DRIVE AND QUICK STOP FOR A WEAPON WITH PREFERABLY LINEAR BREECH OR AMMUNITION FEED - A drive for a breech/breech carrier renders it axially adjustable relative to a weapon barrel. The drive includes a motor, two engaging cams mounted on a chain arranged below the breech and guided around two sprocket wheels. A slide is mounted in a guide at the bottom of the breech/breech carrier so as to move at a right angle to the direction of fire, with a groove extending over its entire width. The respective engaging cam entrains the breech in forward motion relative to the direction of fire, or in reverse motion, once the shot is fired, and transports the breech forwards, is displaced from the groove, and moves backwards without the breech, thereby allowing breech rest periods in a forward position. During firing, the slide moves, whereas it remains stationary when no shot is fired so no further engaging cam can entrain the breech backwards. | 12-01-2011 |
20110314996 | DRIVE AND QUICK STOP FOR A WEAPON WITH PREFERABLY A LINEAR BREECH OR AMMUNITION FEED - A drive, having a quick stop mechanism, for a breech is axially adjustable relative to a weapon barrel, and includes a motor, two counter-rotating chains and sprocket wheels that guide the chains. Engaging cams and control cams are integrated into the chains. A slide mounted at the bottom of the breech is displaceable transversely to the direction of fire and has a groove that the engaging cams engage to entrain the breech in a forward or reverse motion relative to the direction of fire. The engaging cam transporting the breech forwards is displaced from the groove while the control cam displaces the slide simultaneously to its center position via its ascent ramp, thereby allowing breech rest periods in the forward limit position. Firing causes the slide to move from the center position to the left hand side whereas it remains in the center position when no shot is fired. | 12-29-2011 |
20120132061 | BREECH DRIVE FOR A WEAPON WITH A LINEAR BREECH OR AMMUNITION FEED - A mechanism or drive ( | 05-31-2012 |
20120132062 | BREECH DRIVE FOR A WEAPON - A drive for a weapon is provided, wherein rotational motion of a motor is converted to a forward or reverse motion of the breech in a simple manner using the Scotch yoke principle. In order to allow rest periods of the breech in the end positions, the crank radius is defined by a control cam, which changes when the crank is rotated. The hinge pin of the crank may be externally driven via a pinion shaft. A yoke pin is arranged in a groove of the crank so as to be radially displaceable and carries the breech carrier or the breech in a groove extending transversely to the direction of fire via a sliding block. Two rollers are arranged on the crank pin and run in control cams in the weapon or crank housing. The control cam is subdivided into different sectors/sections, thereby achieving the desired motion of the breech. | 05-31-2012 |