Patents Assigned to Bofors AB
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Patent number: 7658150Abstract: The material or fragment discharge is controlled by means of a device (4) in connection to the triggering, such as by means of an initiation charge (5), of the main charge (3) in the ammunition unit (1). The liner is devised as being exposable for effect from the explosive charge or charges (6) that are devised as being able to be initiated upon or shortly prior to the triggering of the main charge. The explosive charge achieves, upon initiation a pre-deformation of the liner (4) prior to the liner being affected by the triggering of the main charge for the material or fragment discharge The fragment forms can be rendered more effective in relation to design solution known by prior art by means of the choice explosive charge form and placement.Type: GrantFiled: June 9, 2004Date of Patent: February 9, 2010Assignee: BAE Systems Bofors ABInventors: Torsten Rönn, Christer Thuman, Peter Freij
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Patent number: 7659846Abstract: A method for creating jamming within an area and a jamming arrangement. The arrangement includes a plurality of distributed jammers. The jammers include a transmitter, receiver and logic unit and communication is established with the jammers. Communication is established directly between jammers included in the arrangement and information that is to be transmitted from one jammer to the other jammers is transmitted by superposing the information on the jamming signal that is produced by the jammers. An autonomous distributed arrangement is achieved that is difficult to disable and that can be made relatively simple, reliable and cost-effective.Type: GrantFiled: January 23, 2007Date of Patent: February 9, 2010Assignee: BAE Systems Bofors ABInventor: Fredrik Olsson
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Publication number: 20090205484Abstract: An electrical energy-insulating, preferably ceramic, insert (15) which is fitted in a barrel (2) is adapted in order to prevent electrical energy transmission (16) from an electric igniter (3) to a barrel body on firing of an ammunition unit (11) which can be initiated with the electric igniter (3). The insert is arranged in a position for firing of the ammunition unit. By means of the invention, a simple solution is obtained to the problem of electrical energy transmission by virtue of the fact that other measures do not have to be taken, for example the cases of the ammunition units do not have to be adapted by complicated and cost-increasing measures.Type: ApplicationFiled: May 2, 2006Publication date: August 20, 2009Applicant: BAE Systems Bofors ABInventors: Ola Stark, Stig Vitén, Lennart Gustavsson
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Publication number: 20090184870Abstract: A system suitable for displaying a target. A first unit is arranged to generate a first information unit including the target's position relative to a first position. The first information unit is arranged to transfer the first information unit to a second unit existing at a second position which is separate from the first position. The second unit is arranged to generate a second information unit including the target's position relative to the second position, depending on the first information unit. The second unit is arranged to indicate the target's position to allow localization of the target.Type: ApplicationFiled: May 24, 2006Publication date: July 23, 2009Applicant: BAE Systems Bofors ABInventors: Jan Christensen, Peter Freij, Jyri Viuhko, Johan Gunnarsson
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Publication number: 20090148549Abstract: The present invention relates to a method and a device for producing perforated propellant in the geometric form of block, stick, slab, cylindrical or tubular propellant (2) with high charge density and high progressivity. The propellant as claimed in the present invention is characterised by a large number of perforations, densely and evenly distributed over the entire propellant segments, made by perforation members (6) that are pressed down into the propellant. The perforations are thereby made in a plurality of steps with a predetermined step feed between each perforation operation. The device as claimed in the present invention also comprises a mobile pin die (5) away from but facing the feed path (1) for the propellant (2), and containing at least one row of pins for perforation of the propellant whereby each such row of pins comprises the number of pins (6) required to cover the complete width of the propellant segment across its direction of advance.Type: ApplicationFiled: February 12, 2009Publication date: June 11, 2009Applicant: Eurenco Bofors ABInventors: Johan Dahlberg, Lennart Selin
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Publication number: 20090126594Abstract: An ammunition device having two or more projectiles (2) arranged one after the other. Each projectile has allocated to it a propellant charge (5) substantially surrounding the projectile arranged for individual activation with an ignition ring and an ignition system (12, 13). The projectiles and their propellant charges are arranged one after the other in an enclosing unit (1), and the projectiles are so arranged as to leave the enclosing unit one at a time in its longitudinal direction at the time of the individual activations of the propellant charges (5). Shorter ammunition devices and opportunities for rapid firing sequences of the projectiles are achieved with the invention.Type: ApplicationFiled: July 4, 2006Publication date: May 21, 2009Applicant: BAE Systems Bofors ABInventors: Ola Stark, Lars-Peter Svanberg
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Publication number: 20090090809Abstract: The invention relates to a method for increasing the range of shells (1, 8, 13) charged with an explosive substance and other types of shell, which function as carriers of the one or other type of active payload. The method according to the invention thus provides an opportunity for increasing the range of fire of most types of artillery piece by increasing the muzzle velocity and the gliding flight capability of shells or projectiles fired from them, but without the need to increase the energy content in the propellant charges utilized for firing the shells or the projectiles concerned. The novelty proposed in accordance with the invention instead represents a radical modification to the design of the shell (1, 8, 13) utilized in conjunction therewith. The invention also relates to a shell charged with an explosive substance or provided with some other active payload which has been given a long range.Type: ApplicationFiled: September 14, 2006Publication date: April 9, 2009Applicant: BAE Systems Bofors ABInventors: Torsten Ronn, Thomas Pettersson, Ulf Heiche
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Publication number: 20090078147Abstract: The present invention relates to a method of initiating explosive charges by means of splinter bodies (5) directed towards these at high speed by an external explosion. According to the invention, these splinter bodies (5) are given large surfaces or broadsides compared with their own mass and are forced to hit the explosive charge with their broadsides (5?) first in order thereby to transfer sufficient kinetic impulse energy to initiate the explosive charge. The invention also comprises splinter bodies (5) specially configured for the implementation of the said method of initiating explosive-filled bodies (2) and explosive charges (3?), intended for the implementation of the said method and provided with a splinter shell (7) comprising the type of splinter bodies (5) characteristic of the invention.Type: ApplicationFiled: December 22, 2006Publication date: March 26, 2009Applicant: BAE Syetems Bofors ABInventor: Torsten Ronn
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Patent number: 7507308Abstract: The present invention relates to a method and a device for producing perforated propellant in the geometric form of block, stick, slab, cylindrical or tubular propellant (2) with high charge density and high progressivity. The propellant as claimed in the present invention is characterised by a large number of perforations, densely and evenly distributed over the entire propellant segments, made by perforation members (6) that are pressed down into the propellant. The perforations are thereby made in a plurality of steps with a predetermined step feed between each perforation operation. The device as claimed in the present invention also comprises a mobile pin die (5) away from but facing the feed path (1) for the propellant (2), and containing at least on one row of pins for perforation of the propellant whereby each such row of pins comprises the number of pins (6) required to cover the complete width of the propellant segment across its direction of advance.Type: GrantFiled: March 28, 2002Date of Patent: March 24, 2009Assignee: Eurenco Bofors ABInventors: Johan Dahlberg, Lennart Selin
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Patent number: 7487934Abstract: This disclosure relates to a method of limiting the yawing motion on the trajectory of an artillery shell during the firing phase using a sliding driving band and completely folded-in guide fins. The shell is converted as soon as possible outside the mouth of the barrel of the firing piece by fold-out of the guide fins into a fin-stabilized artillery shell. Any form of non-uniform fin fold-out is avoided by virtue of all the guide fins being interconnected to form a system which gives all the fins the same movement pattern and the same fold-out speed in each phase of fin fold-out. This disclosure also includes a shell in which synchronization of fin fold-out includes a rotatable control ring that is arranged around the axis of the shell and is connected to the rotation spindles of all the fins.Type: GrantFiled: September 11, 2006Date of Patent: February 10, 2009Assignee: BAE Systems Bofors ABInventor: Stig Johnsson
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Patent number: 7487705Abstract: This invention, as a unit, is a training adjustable combination sight, primarily intended to be mounted on a vehicle of smaller vessel for close-in defence of these against air and ground attacks. In its entirety, aside from the required sight sensors (16-18) situated in an intentionally elevatable sensor housing (4), the combination sight entails a weapon (8) that is controlled by the sensors. The sight sensors (16-18) included in the combination sight can also be utilized for fire control of exterior weapons located elsewhere as well as for gathering purely surveillance data.Type: GrantFiled: October 2, 2007Date of Patent: February 10, 2009Assignee: BAE Systems Bofors ABInventors: Rolf Persson, Ulf Palm-Löv, Jörgen Bergmark
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Publication number: 20090025545Abstract: This invention, as a unit, is a training adjustable combination sight, primarily intended to be mounted on a vehicle of smaller vessel for close-in defence of these against air and ground attacks. In its entirety, aside from the required sight sensors (16-18) situated in an intentionally elevatable sensor housing (4), the combination sight entails a weapon (8) that is controlled by the sensors. The sight sensors (16-18) included in the combination sight can also be utilized for fire control of exterior weapons located elsewhere as well as for gathering purely surveillance data.Type: ApplicationFiled: October 15, 2008Publication date: January 29, 2009Applicant: BAE Systems Bofors ABInventors: Rolf Persson, Ulf Palm-Lov, Jorgen Bergmark
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Publication number: 20080246601Abstract: The invention relates to a network for combat control of ground-based units, such as combat vehicles, in real time, in which information is obtained concerning the units comprised in the network for the evaluation of threats and the calculation of a response. According to the invention, the units are divided into clusters (20; 26) with a central unit (21; 27) in each cluster and at least one client unit (22-25; 28-32) in each cluster, which client units are arranged to communicate with the associated central unit. Each unit comprises a control computer, radio, amplifier and antenna for communication with other units.Type: ApplicationFiled: August 11, 2006Publication date: October 9, 2008Applicant: BAE Systems Bofors ABInventor: Kristoffer Biel
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Patent number: 7392745Abstract: An ammunition unit, for combating targets (10) with or without using shaped charge effect, that incorporates an openable or removable and replaceable hull or outer casing (2). The explosive charge in the ammunition unit comprises a charge section (3) with shaped charge function arranged to be able to assume either of two freely selectable positions in the ammunition unit, the first of which enables the charge to exert its shaped charge function and the second of which disables the shaped charge function and enables a different effect to be triggered.Type: GrantFiled: June 20, 2001Date of Patent: July 1, 2008Assignee: BAE Systems Bofors ABInventor: Nils Johansson
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Publication number: 20080053302Abstract: This invention, as a unit, is a training adjustable combination sight, primarily intended to be mounted on a vehicle of smaller vessel for close-in defence of these against air and ground attacks. In its entirety, aside from the required sight sensors (16-18) situated in an intentionally elevatable sensor housing (4), the combination sight entails a weapon (8) that is controlled by the sensors. The sight sensors (16-18) included in the combination sight can also be utilized for fire control of exterior weapons located elsewhere as well as for gathering purely surveillance data.Type: ApplicationFiled: October 2, 2007Publication date: March 6, 2008Applicant: BAE Systems Bofors ABInventors: Rolf Persson, Ulf Palmlov, Jorgen Bergmark
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Publication number: 20080047453Abstract: The resent invention relates to a method for producing propellant charges with progressive combustion characteristic and a higher charge density than previously considered possible to achieve, intended in the first instance for direct-firing barrel weapons such as tank cannons.Type: ApplicationFiled: December 8, 2004Publication date: February 28, 2008Applicant: Eurenco Bofors ABInventor: Johan Dahlberg
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Patent number: 7293493Abstract: This invention, as a unit, is a training adjustable combination sight, primarily intended to be mounted on a vehicle of smaller vessel for close-in defence of these against air and ground attacks. In its entirety, aside from the required sight sensors (16-18) situated in an intentionally elevatable sensor housing (4), the combination sight entails a weapon (8) that is sensors. The sight sensors (16-18) included in the combination sight can also be utilised for fire control of exterior weapons located elsewhere as well as for gathering purely surveillance data.Type: GrantFiled: October 9, 2002Date of Patent: November 13, 2007Assignee: BAE Systems Bofors ABInventors: Rolf Persson, Ulf Palmlöv, Jörgen Bergmark
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Patent number: 7226016Abstract: This disclosure relates to a method and an arrangement for low or non-rotating artillery shells fired from launch weaponry, and which introduces a portion of the barrel pressure built up in the barrel during the launch phase into a chamber arranged in the low or non-rotating artillery shell which is delimited in at least one direction by an element which is movable relative to the rest of the shell when a differential pressure between the chamber and the external environment of the shell is sufficient to move the element. The moveable element may be a protective casing covering fins of the artillery shell.Type: GrantFiled: March 28, 2005Date of Patent: June 5, 2007Assignee: BAE Systems Bofors ABInventors: Stig Johnsson, Ulf Hellman, Ulf Holmqvist
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Publication number: 20070114323Abstract: This disclosure relates to a method of limiting the yawing motion on the trajectory of an artillery shell during the firing phase using a sliding driving band and completely folded-in guide fins. The shell is converted as soon as possible outside the mouth of the barrel of the firing piece by fold-out of the guide fins into a fin-stabilized artillery shell. Any form of non-uniform fin fold-out is avoided by virtue of all the guide fins being interconnected to form a system which gives all the fins the same movement pattern and the same fold-out speed in each phase of fin fold-out. This disclosure also includes a shell in which synchronization of fin fold-out includes a rotatable control ring that is arranged around the axis of the shell and is connected to the rotation spindles of all the fins.Type: ApplicationFiled: September 11, 2006Publication date: May 24, 2007Applicant: BAE Systems Bofors ABInventor: Stig Johnsson
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Patent number: 7156024Abstract: A warhead charge device (18, 18?, 18?, 18??) arranged to carry liquid explosive (11), and which device is for use in an ammunition cargo unit such as a missile. The device incorporates at least two confined spaces (2, 6, 9) equipped with or, while the function of the device is in operation, capable of receiving liquid explosive (11) or components thereof via a device such as a pump device arranged to transfer completely or partially the explosive or components thereof from at least the first confined space to the other confined space, or vice versa.Type: GrantFiled: June 20, 2001Date of Patent: January 2, 2007Assignee: BAE Systems Bofors ABInventors: Torsten Ronn, Nils Johansson, Thomas Widlund