Patents Assigned to Rheinmetall W & M GmbH
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Patent number: 6477932Abstract: RF beam sources (HPM sources) serve in the non-lethal destruction, interference or screening of targets. An explosive-triggered RF beam source (2) constructed solely from a pulse-generation device (4), whose generated pulses are radiated directly at a target is provided. The pulse generator (4) is a magnetic flux compressor, and has a coil (6) that is filled with explosive material (10). A capacitive load (CL) integrated into the RF beam source (2) is connected on the output side to the pulse-generator (4), and forms an electrical resonating circuit with the coil (6) and simultaneously functions as an antenna. Preferably, an element (14) is mounted in the region (13) between the coil body (6.1) and the windings (6.2) to increase the number of free electrons for supporting the plasma formation and attaining a higher conversion of chemical energy into electrical energy, and therefore inducing a higher frequency.Type: GrantFiled: September 12, 2001Date of Patent: November 12, 2002Assignee: Rheinmetall W & M GmbHInventor: Markus Jung
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Patent number: 6467213Abstract: A method of providing an inner surface of a weapon barrel with a hard chromium layer includes the steps of forming the hard chromium layer on the inner surface by galvanic separation; and thereafter heating the hard chromium layer beyond the re-crystallization temperature thereof for obtaining, upon conclusion of the heating step, a uniform re-crystallization of the hard chromium layer in its entirety.Type: GrantFiled: November 18, 1999Date of Patent: October 22, 2002Assignee: Rheinmetall W & M GmbHInventors: Gert Schlenkert, Horst Reckeweg, Hartmut Wagner
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Patent number: 6454205Abstract: A fin-stabilized projectile includes a projectile body having a rear portion defining a rearwardly open cavity and a stabilizing assembly which has an axially slidable fin support in the cavity. The fin support has a retracted position in which the fin support is withdrawn into the cavity and an outwardly shifted position in which the fin support projects from the projectile body. A plurality of fins are pivotally held in the fin support. Each fin has a folded state in which it is withdrawn in the fin support when the latter is in the retracted position and a deployed state in which it is unfolded and extends substantially externally of the fin support when the latter is in its outwardly shifted position. When the projectile has left the weapon barrel, the fin support is axially shifted and the fins move into the deployed state.Type: GrantFiled: March 30, 2001Date of Patent: September 24, 2002Assignee: Rheinmetall W & M GmbHInventors: Torsten Niemeyer, Frank Guischard, Horst Fritsch
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Publication number: 20020095846Abstract: A weapon barrel includes a hard chromium layer provided on an inner barrel surface. The hard chromium layer contains at least 500 fissures/cm in a cross-sectional plane.Type: ApplicationFiled: March 13, 2002Publication date: July 25, 2002Applicant: Rheinmetall W & M GmbHInventors: Gert Schlenkert, Hartmut Wagner, Horst Reckeweg
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Patent number: 6412419Abstract: A spin-stabilized projectile includes a projectile body having a longitudinal axis; a metal driving band mounted on the projectile body and having a circumferential groove surrounding the axis; and a plastic sealing ring seated in the groove and affixed to the projectile body.Type: GrantFiled: November 30, 1999Date of Patent: July 2, 2002Assignee: Rheinmetall W & M GmbHInventor: Fritz Brinkmann
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Patent number: 6408764Abstract: A case base (1; 1′) for large-caliber ammunition, in which the case jacket (2) comprises a combustible material, with the case base (1; 1′) comprising a metallic base plate (3) and a support ring (4; 4′) that projects axially beyond the surface of the base plate (3) at its edge, and an elastomer or thermoplastic obturation ring (5; 5′) that is disposed on the projectile side of the support ring (4; 4′). In order for the obturation ring (5; 5′) to be secured simply to the support ring (4; 4′) and removed again after the ammunition has been fired, the support ring (4; 4′) has, on its inner surface (6) facing the obturation ring (5; 5′), a groove-shaped undercut (7), into which the end (8) of the obturation ring (5; 5′) that faces the support ring (4; 4′) extends with a form-fit and/or positive lockup.Type: GrantFiled: September 18, 2000Date of Patent: June 25, 2002Assignee: Rheinmetall W & M GmbHInventors: Thomas Heitmann, Torsten Niemeyer
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Patent number: 6408557Abstract: An apparatus for producing rifling grooves in a weapon barrel, in which a drawing head (1) that rotates about its longitudinal axis (5) is drawn through the respective weapon barrel by a drawing rod (2), and the rifling grooves are cut into the inside surface of the weapon barrel with corresponding drawing knives (9) disposed on the drawing head (1). To produce the rifling grooves in the respective weapon barrel at a Low cost, the drawing head (1) is provided with a central adjusting arbor (6), with which all of the drawing knives (9) can be simultaneously displaced outwardly. In the production of the rifling grooves, therefore, the drawing knives (9) need no longer be exchanged in a time-consuming process. Instead, only the setting of the drawing knives (9) is modified with the aid of the adjusting arbor (6).Type: GrantFiled: September 18, 2000Date of Patent: June 25, 2002Assignee: Rheinmetall W & M GmbHInventors: Manfred Zaeper, Klaus Hogrebe
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Patent number: 6405652Abstract: A projectile includes a stabilizing band mounted on a rear projectile portion and having a folded state and a deployed state and a fuze assembly accommodated in the projectile. The fuze assembly includes a firing pin carrier supported for motion parallel to the longitudinal axis of the projectile; a firing pin secured to the firing pin carrier; a slide supported for motion transversely to the projectile axis and having a safety position and a firing position; and a detonator mounted on the slide. The detonator is out of alignment with the firing pin in the safety position of the slide and is in alignment with the firing pin in the firing position of the slide. A force-transmitting component is attached to the stabilizing band and the slide for moving the slide from the safety position into the firing position by a force generated by a motion of the stabilizing band from its folded state into its deployed state.Type: GrantFiled: April 17, 2000Date of Patent: June 18, 2002Assignee: Rheinmetall W & M GmbHInventors: Wolfgang Hoffmann, Michael Günther, Tobias Zerbe
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Patent number: 6401622Abstract: A spin-stabilized projectile includes a projectile body having a longitudinal axis, a forward and a rearward direction; a metal driving band mounted on the projectile body for transferring spinning forces to the projectile body; a circumferential groove provided in the outer surface of the projectile body rearwardly of the metal guide band; and a metal sealing ring seated in the groove and being freely rotatable relative to the projectile body.Type: GrantFiled: November 30, 1999Date of Patent: June 11, 2002Assignee: Rheinmetall W & M GmbHInventor: Fritz Brinkmann
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Patent number: 6381893Abstract: A weapon barrel includes a hard chromium layer provided on an inner barrel surface. The hard chromium layer contains at least 500 fissures/cm in a cross-sectional plane.Type: GrantFiled: July 30, 1999Date of Patent: May 7, 2002Assignee: Rheinmetall W & M GmbHInventors: Gert Schlenkert, Hartmut Wagner, Horst Reckeweg
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Patent number: 6380889Abstract: A reconnaissance sonde to be dropped and erected in an area for wirelessly transmitting data to a data processing apparatus.Type: GrantFiled: February 22, 2000Date of Patent: April 30, 2002Assignee: Rheinmetall W & M GmbHInventors: Ralf-Joachim Herrmann, Wolfgang Seidel
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Patent number: 6354218Abstract: A propellant system for launching a large-caliber projectile includes a propellant having at least three partial charges. The first partial charge is adapted to acceleration requirements of the projectile; the second partial charge has a higher combustion velocity than that of the first partial charge; and the third partial charge has a lower combustion velocity than that of the first partial charge. The propellant system further includes an electric energy supply and control device connected to the propellant for igniting the propellant. The electric energy supply and control device has a plasma generator for affecting a combustion behavior of the propellant such as to obtain for said first partial charge, after ignition of the propellant, a maximum gas pressure level of always the same magnitude independently from an initial propellant temperature, and to obtain, for the third partial charge, a conversion such as to prolong the maximum gas pressure level in a predeterminable manner.Type: GrantFiled: July 29, 1999Date of Patent: March 12, 2002Assignees: Rheinmetall W & M GmbH, TZN Forschungs-und Entwicklungszentrum Unterlüss GmbH, Nitrochemie Aschau GmbHInventors: Thomas Weise, Hans Karl Haak, Paul Schaffers, Peter Lange
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Patent number: 6352740Abstract: A method of coating an inner face of a weapon barrel with a coating material includes the following steps: introducing the coating material as a component in sheet or foil form into the weapon barrel; positioning the component in the weapon barrel such that a first face of the component is oriented toward the inner face of the barrel and a second face of the component is oriented away from the inner face of the barrel; maintaining an annular clearance between the inner face of the barrel and the component; providing the second face of the component with an explosive; and detonating the explosive for hurling the coating material of the component against the inner face of the barrel for effecting a cold welding between the coating material and the inner face of the barrel.Type: GrantFiled: June 9, 2000Date of Patent: March 5, 2002Assignee: Rheinmetall W&M GmbHInventor: Christian Warnecke
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Publication number: 20010047736Abstract: A cartridge ammunition includes a cartridge case having a front and a rear; a projectile inserted into the cartridge case at its front and extending into the cartridge case; an igniter provided in the rear of the cartridge case; and a propellant charge accommodated in the cartridge case. The propellant charge is formed of a compacted bulk propellant powder having a density of between 0.9 and 1.2 g/cm3.Type: ApplicationFiled: July 13, 2001Publication date: December 6, 2001Applicant: Rheinmetall W & M GmbH, Heinrich-Ehrhardt-StrasseInventor: Stefan Thiesen
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Patent number: 6318269Abstract: A projectile includes a fuze assembly which has a firing pin carrier supported for motion parallel to a longitudinal axis of the projectile; a firing pin secured to the firing pin carrier; a slide supported for motion transversely to the projectile longitudinal axis and having a safety position and a firing position; and a detonator mounted on the slide. The detonator is out of alignment with the firing pin in the safety position of the slide and is in alignment with the firing pin in the firing position of the slide. A holding shell is positioned in the projectile and is exposed to a force of an air current during projectile flight for causing the holding shell to fly off the projectile. A force-transmitting component connects the holding shell with the slide for displacing the slide from the safety position into the firing position upon movement of the holding shell away from the projectile.Type: GrantFiled: April 17, 2000Date of Patent: November 20, 2001Assignee: Rheinmetall W & M GmbHInventors: Wolfgang Hoffmann, Karlheinz Roosmann
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Patent number: 6318270Abstract: A projectile fuze includes a detonator carrier having a safety position and an armed position; a pin having a blocking position in which it holds the detonator carrier in the safety position and a releasing position in which the pin allows the detonator carrier to move into the armed position; a spring urging the pin into the releasing position; a pyrotechnical delay element exposed to hot propellant gases for causing ignition and combustion of the delay element; and a pin-supporting component maintaining the pin in the blocking position against a force of the spring. The pin-supporting component is held in the pin-maintaining state by the delay element until combustion thereof, whereby the pin is allowed to move into the releasing position upon combustion of the delay element.Type: GrantFiled: June 30, 2000Date of Patent: November 20, 2001Assignee: Rheinmetall W & M GmbHInventor: Adolf Weber
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Patent number: 6318015Abstract: A holder assembly for supporting a collimator of a field adjusting device on a weapon barrel includes a holder sled having a dovetail guide provided in the underface of the sled. The dovetail guide has lateral guide faces converging toward one another. A first groove is provided in the underface of the sled and extends transversely to the length of the dovetail guide. A dovetail receiver block is affixed to the weapon barrel in the muzzle region. The dovetail receiver block has lateral guide faces converging toward one another. A second groove, located on the weapon barrel, extends transversely to the barrel axis. The holder sled is removably mountable on the weapon barrel by sliding the dovetail guide onto the dovetail receiver block in a direction parallel to the barrel axis until an installed state of the holder sled is reached.Type: GrantFiled: September 10, 1999Date of Patent: November 20, 2001Assignee: Rheinmetall W & M. GmbHInventors: Berthold Baumann, Hartmut Wagner
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Patent number: 6314886Abstract: A projectile to be fired from a weapon barrel includes a projectile body and a plurality of stabilizing wings circumferentially distributed about a rearward portion of the projectile body. A pin pivotally attaches each stabilizing wing to the projectile body for pivotal motion about a pivot axis to assume a folded state and an outwardly pivoted, deployed state. In the folded state of the stabilizing wings the center of gravity of the respective stabilizing wings is at a greater radial distance from the longitudinal axis of the projectile body than the pivot axis. A gliding body is releasably mounted on each stabilizing wing. Each gliding body has a wing-shaped extension for contacting an inner surface of the barrel in the folded state of the stabilizing wings as the projectile travels in the barrel upon firing.Type: GrantFiled: February 22, 2000Date of Patent: November 13, 2001Assignee: Rheinmetall W & M GmbHInventors: Joachim Kuhnle, Thomas Heitmann, Torsten Niemeyer, Norbert Arendt
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Patent number: 6314857Abstract: 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 the second circumferential region.Type: GrantFiled: February 4, 2000Date of Patent: November 13, 2001Assignee: Rheinmetall W & M GmbHInventors: Bernd Schmidt, Berthold Baumann
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Patent number: 6302008Abstract: A process of producing a propellant charge igniter for cartridge ammunition of the type including an ignition tube with a booster charge, wherein the ignition tube is composed of a sheathing tube (4) with ignition openings (3) and a thin-walled protective tube (6) which is arranged inside the sheathing tube (4) in order to protect the booster charge, and wherein the external wall of the protective tube fits against the internal wall of the sheathing tube (4) and covers the ignition openings (3). To avoid microscopic gaps between the sheathing tube and the protective tube, which gaps influence the performance of the propellant charge igniter, a paste-like sealing agent (5) is introduced into the sheathing tube (4) before the protective tube (6) is inserted into the sheathing tube (4), and only then is the protective tube (6) inserted into the sheathing tube (4) to displace the sealing agent.Type: GrantFiled: September 2, 1998Date of Patent: October 16, 2001Assignee: Rheinmetall W&M GmbHInventors: Manfred Lübben, Stefan Thiesen, Klaus Unterstein