Patents Assigned to Eurenco Bofors AB
  • Patent number: 10287219
    Abstract: A method for phlegmatizing an explosive in an aqueous suspension including a dispersed phlegmatizing agent. The phlegmatizing agent is deposited on a surface of the explosive at low temperature utilizing opposite electric charges of the phlegmatizing agent and the explosive. Also a device and a phlegmatized explosive.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: May 14, 2019
    Assignee: EURENCO BOFORS AB
    Inventors: Michal Mazurek, Karolina Mazurek
  • Publication number: 20160137566
    Abstract: A method for phlegmatising an explosive in an aqueous suspension including a dispersed phlegmatising agent. The phlegmatising agent is deposited on a surface of the explosive at low temperature utilizing opposite electric charges of the phlegmatising agent and the explosive. Also a device and a phlegmatised explosive.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 19, 2016
    Applicant: EURENCO BOFORS AB
    Inventors: Michal MAZUREK, Karolina Mazurek
  • Patent number: 8544387
    Abstract: 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. Combined in the charge are at least two radially perforated propellant tubes, which are arranged in their entirety inside or after one another, and which have at an e-dimension selected in relation to the actual type of propellant and its desired combustion characteristic, combustion or ignition channels, and which have circular outer and inner boundary surfaces, in conjunction with which, before initiation of the charge, at least one of the total number of outer surfaces of these propellant tubes that are available for initiation has been treated with an inhibition, surface treatment or surface intended to delay the propagation of ignition to that surface so that the combustion of the propellant tubes is partially mutually overlapping.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: October 1, 2013
    Assignee: Eurenco Bofors AB
    Inventor: Johan Dahlberg
  • Publication number: 20120097060
    Abstract: 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. Combined in the charge are at least two radially perforated propellant tubes, which are arranged in their entirety inside or after one another, and which have at an e-dimension selected in relation to the actual type of propellant and its desired combustion characteristic, combustion or ignition channels, and which have circular outer and inner boundary surfaces, in conjunction with which, before initiation of the charge, at least one of the total number of outer surfaces of these propellant tubes that are available for initiation has been treated with an inhibition, surface treatment or surface intended to delay the propagation of ignition to that surface so that the combustion of the propellant tubes is partially mutually overlapping.
    Type: Application
    Filed: April 4, 2011
    Publication date: April 26, 2012
    Applicant: EURENCO BOFORS AB
    Inventor: Johan Dahlberg
  • Patent number: 8156869
    Abstract: The present invention relates to a method of producing propellant charges (2) of multi-perforated stick propellant with maximized charge weights for sub-calibre, armour-piercing, high-velocity projectiles (3), which are provided, for example, with six to eight, fixed stabilizing fins (5-10). The invention also encompasses a multi-perforated stick propellant (11-12) intended for this purpose and a propellant charge produced from multi-perforated stick propellant according to the methods.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: April 17, 2012
    Assignee: Eurenco Bofors AB
    Inventor: Johan Dahlberg
  • Patent number: 7921777
    Abstract: The present invention relates to a method and an arrangement for the production of radially perforated, cylindrical propellant tubes (1, 23, 31). The invention is based on the underlying idea that the respective propellant tube (1, 23, 31) must be fixed and centred between its own open ends and thereafter to be perforated in stages in a large number of consecutive perforation operations by means of one or more pins (13) capable of displacement in a pin die (10) relative to the propellant tube towards and at least through the major proportion of the cylindrical wall of the propellant tube. Also included in the invention is the requirement for the displacement, between each perforation operation, of the propellant tube and the pin die (10) used for the preparation operation in such a way relative to one another that the propellant tube, after a complete perforation operation, shall be covered in its entirely by perforations (32, 33, 35, 36), which lie at a predetermined e-dimension distance from one another.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: April 12, 2011
    Assignee: Eurenco Bofors AB
    Inventor: Johan Dahlberg
  • Patent number: 7918163
    Abstract: 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: Grant
    Filed: December 8, 2004
    Date of Patent: April 5, 2011
    Assignee: Eurenco Bofors AB
    Inventor: Johan Dahlberg
  • Publication number: 20090148549
    Abstract: 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: Application
    Filed: February 12, 2009
    Publication date: June 11, 2009
    Applicant: Eurenco Bofors AB
    Inventors: Johan Dahlberg, Lennart Selin
  • Patent number: 7507308
    Abstract: 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: Grant
    Filed: March 28, 2002
    Date of Patent: March 24, 2009
    Assignee: Eurenco Bofors AB
    Inventors: Johan Dahlberg, Lennart Selin
  • Publication number: 20080282926
    Abstract: The present invention relates to a method and an arrangement for the production of radially perforated, cylindrical propellant tubes (1, 23, 31). The invention is based on the underlying idea that the respective propellant tube (1, 23, 31) must be fixed and centred between its own open ends and thereafter to be perforated in stages in a large number of consecutive perforation operations by means of one or more pins (13) capable of displacement in a pin die (10) relative to the propellant tube towards and at least through the major proportion of the cylindrical wall of the propellant tube. Also included in the invention is the requirement for the displacement, between each perforation operation, of the propellant tube and the pin die (10) used for the preparation operation in such a way relative to one another that the propellant tube, after a complete perforation operation, shall be covered in its entirely by perforations (32, 33, 35, 36), which lie at a predetermined e-dimension distance from one another.
    Type: Application
    Filed: December 8, 2004
    Publication date: November 20, 2008
    Applicant: EURENCO BOFORS AB
    Inventor: Johan Dahlberg
  • Publication number: 20080047453
    Abstract: 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: Application
    Filed: December 8, 2004
    Publication date: February 28, 2008
    Applicant: Eurenco Bofors AB
    Inventor: Johan Dahlberg