Patents by Inventor Torsten Ronn

Torsten Ronn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8689669
    Abstract: The present invention is directed to a method for production preformed fabrication casing or associated parts intended to generate fragments initiated by the explosive of contained warhead charges. Molded parts having fragmentation bodies (4, 21, 34) embedded therein are produced by a two-stage powder compaction method followed by sintering together the compacted powder metal. The method described in the present invention defines how in an initial stage the fragmentation bodies (4, 21, 34) are fixed in position using a fixture (2) after which the bodies are covered with powder metal that is then compacted until the powder forms a single molded part (2) after which the fixture is replaced with a secondary quantity of powder that is also compacted to form a self-supporting unit (12) together with the first quantity of powder.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: April 8, 2014
    Assignee: Bofors Defence AB
    Inventors: Torsten Rönn, Hans-Gunnar Larsson
  • Patent number: 8453574
    Abstract: A method for firing explosive-filled, fragmentation shells (1) that disperse fragments on the pre-programmed detonation of their own explosive (7) so as to reduce the risk of accidental injury to unprotected personnel and damage to materiel, which at the moment of firing are undeservedly situated between the firing weapon and the target is provided. Also provided are shells (1) produced or modified according to the method.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: June 4, 2013
    Assignee: BAE Systems Bofors AB
    Inventor: Torsten Rönn
  • Patent number: 8196514
    Abstract: The invention relates to a warhead comprising a first and a second part, the parts being arranged relative to one another along a longitudinal axis, the first part comprising a first explosive section, a casing, and a plurality of projectiles enclosed in the casing. The second part comprises an element designed to control the working of the warhead as a function of a control signal. The fact that the functioning of the warhead can be controlled means that the warhead can defeat a plurality of different targets, which makes the warhead versatile.
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: June 12, 2012
    Assignee: BAE Systems Bofors AB
    Inventors: Lennart Gustafsson, Torsten Rönn
  • Patent number: 8097838
    Abstract: 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: Grant
    Filed: September 14, 2006
    Date of Patent: January 17, 2012
    Assignee: BAE Systems Bofors AB
    Inventors: Torsten Rönn, Thomas Pettersson, Ulf Heiche
  • Patent number: 7739955
    Abstract: An explosive charge (3) can be equipped with two liners (4, 5) that can be attached to one another. The primary liner (4) is so devised that when choosing a first choice (11) of being able to work independently and by employing a symmetrical form achieving a forward-aimed Shaped Charge Warhead (SCW) effect upon explosive charge initiation by means of the material (7, 8) indicated for the primary liner. A secondary liner (5) is devised with a second choice (12) to be able to work together with the primary liner and together cause an asymmetric form that distributes the material (18, 19) from the liners at different velocities to thereby cause a forward-directed fragmentation effect. The ammunition unit (1) can, thus, be designed or prepared for two different combat cases in a technologically simple and unambiguous manner.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: June 22, 2010
    Assignee: BAE Systems Bofors AB
    Inventors: Torsten Rönn, Christer Thuman
  • Patent number: 7658150
    Abstract: 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: Grant
    Filed: June 9, 2004
    Date of Patent: February 9, 2010
    Assignee: BAE Systems Bofors AB
    Inventors: Torsten Rönn, Christer Thuman, Peter Freij
  • Publication number: 20090199736
    Abstract: The present invention relates to a method for firing explosive-filled, fragmentation shells (1) that disperse fragments on the pre-programmed detonation of their own explosive (7) so as to reduce the risk of accidental injury to unprotected personnel and damage to materiel, which at the moment of firing are undeservedly situated between the firing weapon and the target. The invention also encompasses shells (1) produced or modified according to said method.
    Type: Application
    Filed: October 10, 2006
    Publication date: August 13, 2009
    Applicant: BAE SYSTEMS BOFORS AB.
    Inventor: Torsten Ronn
  • Publication number: 20090145323
    Abstract: The present invention relates to a method in firing artillery projectiles, such as various types of shells (1, 26), from rifled barrels (5a, 5b) for preventing the degree of wear of the barrel from which the projectiles are fired from having a negative effect on the muzzle velocity of the projectiles. The invention also encompasses a number of artillery projectiles or shells (1, 26) designed according to said method, and a method of manufacturing these. The invention encompasses a number of different variants for solving the stated problem, the basic principle of all of these variants being to adjust the band positions of the shells to the degree of barrel wear, so that a perfect propellant gas obturation is at all times obtained between the band (9, 11-14, 19-21, 23 and 33) and the origin of the rifling in the barrel, regardless of the degree of barrel wear.
    Type: Application
    Filed: February 19, 2007
    Publication date: June 11, 2009
    Applicant: BAE SYSTEMS BOFORS AB
    Inventors: Lennart Gustavsson, Ulf Heiche, Torsten Ronn
  • Publication number: 20090090809
    Abstract: 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: Application
    Filed: September 14, 2006
    Publication date: April 9, 2009
    Applicant: BAE Systems Bofors AB
    Inventors: Torsten Ronn, Thomas Pettersson, Ulf Heiche
  • Publication number: 20090078147
    Abstract: 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: Application
    Filed: December 22, 2006
    Publication date: March 26, 2009
    Applicant: BAE Syetems Bofors AB
    Inventor: Torsten Ronn
  • Publication number: 20080307994
    Abstract: The invention relates to a warhead comprising a first and a second part, the parts being arranged relative to one another along a longitudinal axis, the first pail comprising a first explosive section, a casing, and a plurality of projectiles enclosed in the casing. The second part comprises an element designed to control the working of the warhead as a function of a control signal. The fact that the functioning of the warhead can be controlled means that the warhead can defeat a plurality of different targets, which makes the warhead versatile.
    Type: Application
    Filed: January 14, 2005
    Publication date: December 18, 2008
    Applicant: BAE SYSTEM BOFORS AB
    Inventors: Lennart Gustafsson, Torsten Ronn
  • Publication number: 20070214991
    Abstract: An explosive charge (3) can be equipped with two liners (4, 5) that can be attached to one another. The primary liner (4) is so devised that when choosing a first choice (11) of being able to work independently and by employing a symmetrical form achieving a forward-aimed Shaped Charge Warhead (SCW) effect upon explosive charge initiation by means of the material (7, 8) indicated for the primary liner. A secondary liner (5) is devised with a second choice (12) to be able to work together with the primary liner and together cause an asymmetric form that distributes the material (18, 19) from the liners at different velocities to thereby cause a forward-directed fragmentation effect. The ammunition unit (1) can, thus, be designed or prepared for two different combat cases in a technologically simple and unambiguous manner.
    Type: Application
    Filed: June 3, 2004
    Publication date: September 20, 2007
    Applicant: Bofors Defence AB
    Inventors: Torsten Ronn, Christer Thuman
  • Patent number: 7213517
    Abstract: A proximity-fuzed ammunition unit (1) that can approach a target and where during approach the proximity fuze function effects or gives rise to a voltage pulse pattern that is dependent on objects located along the flight path of the ammunition unit on its approach to the target. The voltage pulse pattern forms the basis for the actution of at least one triggering device (18) incorporated in the ammunition unit. The electrical circuit or circuits incorporated in or interacting with each triggering device is/are arranged to sense a voltage or amplitude value in the trailing edge of a pulse incorporated in or forming the pattern. If the pattern comprises a number of pulses an indication is given when a predetermined number of pulses has appeared to appears. Each electrical circuit causes or effects the opeation of the triggering device for its actuation depending on the said sensing and/or indication.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: May 8, 2007
    Assignee: Bofors Defence AB
    Inventors: Torsten Ronn, Nils Johansson
  • Patent number: 7156024
    Abstract: 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: Grant
    Filed: June 20, 2001
    Date of Patent: January 2, 2007
    Assignee: BAE Systems Bofors AB
    Inventors: Torsten Ronn, Nils Johansson, Thomas Widlund
  • Patent number: 7127995
    Abstract: An ammunition unit (1) designed to he adaptable to different types of targets (2,2?) or situations. The said ammunition unit comprises cylindrical warhead charges (4, 5) that confine or form explosive compositions (23), on or around the outside of which there are effect layers or casing containing effect elements (25, 27). These effect elements together with the explosive compositions (24) constitute the combatant function. Two or more cylindrical warhead charges (4, 5) are arranged essentially parallel alongside each other or inside each other. Each of the cylindrical warhead charges comprises effect layers around their cylindrical outer surface that provide different effects in target. The cylindrical warhead charges are rotatably arranged to assume different rotational setting modes, and in each such mode the same type or co-ordinated types of effect layers are directed outwards.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: October 31, 2006
    Assignee: BAE Systems Bofors AB
    Inventors: Torsten Ronn, Nils Johansson
  • Publication number: 20060180045
    Abstract: The material or fragment discharge is controlled by means of a device (4) in connection to the triggering, preferably by means if 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 initiate able 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 said 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, different fragment forms can obtain among different ammunition units.
    Type: Application
    Filed: June 9, 2004
    Publication date: August 17, 2006
    Applicant: BAE Systems Bofors AB
    Inventors: Torsten Ronn, Christer Thuman, Peter Freij
  • Patent number: 7066093
    Abstract: A warhead device comprising explosive charges and effect elements or effect agents for incorporation in a missile. The warhead device consists of a number of modules or modular charges (1a–1f) arranged to be actuatable between two or more pivotal positions in the cross-section of the warhead device. Each module comprises outer walls (9–14) that one by one are directed outwards depending on the position or pivotal position assumed by the module. Each outer wall of each module comprises warhead effect elements and/or effect agents that differ from the other warhead effect elements or agents. The outer walls that are directed outwards simultaneously form or are part of the common outer wall of the warhead device, and project a selectable warhead effect from the warhead device.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: June 27, 2006
    Assignee: BAE Systems Bofors AB
    Inventors: Torsten Ronn, Nils Johansson
  • Patent number: 7032521
    Abstract: A selectable mode multi-mode missile carrying submunitions and incorporating guidance and target seeking functions includes triggering or actuation of the submunitions by programming function on the ground or on board another weapon platform or via a link from the ground or said the weapon platform. The submunitions may also be actuated by an impact function. The programming function incorporates or interacts with mode determining or setting devices that cause the missile and its submunitions to selectively operate either in a penetrator mode, a distributed penetrator mode, or in a separation mode. The submunitions are actuated independently, in sequence, or in common with each other depending upon the operating mode selected.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: April 25, 2006
    Assignee: BAE Systems Bofors AB
    Inventors: Torsten Ronn, Ulf Heiche
  • Patent number: 7004075
    Abstract: An ammunition unit, such as a missile, the casing of which contains at least one explosive charge as well as warhead modules arranged in or on the fuselage or casing that comprise a constituent part of the unit's warhead function when the explosive charge is actuated. The warhead effect modules are of modular design, and the various modules are secured to the fuselage or casing by securing devices and/or retention parts. The device includes a range of modules pertaining to different types of warhead effects. When engaging an actual type of target the ammunition unit is assembled with an array of modules-selected from the range of modules-matched to different types of targets or engagement situations, with the array of modules secured to the fuselage or casing by securing devices.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: February 28, 2006
    Assignee: Bofors Defence AB
    Inventors: Torsten Ronn, Jan Fixell
  • Patent number: 6966265
    Abstract: An ammunition device (4) comprising one or more warhead effect jackets (17), each jacket containing warhead effect elements (18). The ammunition device also incorporates one or more explosive compositions arranged inside each warhead effect jacket that in or close to the target is/are triggerable by means of a triggering device. One or more separation charges is/are arranged adjacent to each warhead effect jacket that when actuated cause removel of one or more said warhead effect jacket(s). The actuation devices incorporate or interact with a programming device that operates with a first mode that can be an initial mode in which the actuation devices remain non-actuated, and a second mode in which the programming device actuates the actuation devices for initiating the separation charges, thereby causing ejection of each warhead effect jacket concerned.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: November 22, 2005
    Assignee: Bofors Defence AB
    Inventors: Torsten Ronn, Nils Johansson