Patents by Inventor Jyrki Helander
Jyrki Helander 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: 7987789Abstract: A method for reducing the amount of ammunition types to be used against a wide set of targets. At least two explosive charges are made use of in cooperation. Each of the explosive charges has changeable characteristics and is arranged to mutually cooperate in different ways depending on the particular changeable characteristics given to the explosive charges in a specific case and the type of target to be combated. An ammunition device admitting a reduction of the amount of ammunition types to be used. At least two cooperating explosive charges are arranged in a row along the direction of movement of the ammunition device when activated. Each of the explosive charges is switchable between at least two operating conditions having different operating characteristics.Type: GrantFiled: March 8, 2007Date of Patent: August 2, 2011Assignee: SAAB ABInventors: Christer Regebro, Jyrki Helander
-
Publication number: 20100242769Abstract: An ammunition unit suitable for combat in urban terrain. The ammunition unit includes a warhead including a kinetic pre-cursor, a main charge, an impact sensor and an ignition system. A pre-charge is accommodated in the kinetic pre-cursor. The ignition of the pre-charge is controlled by the ignition system by introducing a time delay between a sensed impact and the ignition of the pre-charge and the ignition of the main charge is controlled by the ignition system by introducing a further time delay before ignition of the main charge.Type: ApplicationFiled: June 30, 2006Publication date: September 30, 2010Applicant: SAAB ABInventor: Jyrki Helander
-
Patent number: 7699005Abstract: The invention relates to an ammunition arrangement. The ammunition arrangement comprises at least two active parts (2, 3), each with its own active charge (4, 6), arranged axially one behind the other. In order to make large holes in walls and the like without problems of great weight, the second active charge (6) is designed to act essentially in the radial direction at right angles to the direction of movement of the active charge.Type: GrantFiled: June 11, 2002Date of Patent: April 20, 2010Assignee: SAAB ABInventor: Jyrki Helander
-
Patent number: 7658139Abstract: An electricity generating device for use in an armor arrangement, and to an armor arrangement. The armor arrangement includes two inert reactive armor modules arranged one behind the other, which each include a plate made of inert material, interposed between steel plates. Sheet-shaped members are mounted or baked onto the inert material. The sheet-shaped members are provided with a number of mutually separate regions in which, or next to which, there are disposed elements which convert mechanical vibrations or shock waves in the inert material into electrical voltage. The elements can include crystals or piezoelectric layers. The ammunition part or ammunition effect which penetrates the inert reactive armor modules and which generates the mechanical vibrations or shock waves provokes in one or more elements the generation of a voltage which can be used to initiate counteragents against the penetration.Type: GrantFiled: December 18, 2007Date of Patent: February 9, 2010Assignee: SAAB ABInventor: Jyrki Helander
-
Publication number: 20090151549Abstract: An electricity generating device for use in an armor arrangement, and to an armor arrangement. The armor arrangement includes two inert reactive armor modules arranged one behind the other, which each include a plate made of inert material, interposed between steel plates. Sheet-shaped members are mounted or baked onto the inert material. The sheet-shaped members are provided with a number of mutually separate regions in which, or next to which, there are disposed elements which convert mechanical vibrations or shock waves in the inert material into electrical voltage. The elements can include crystals or piezoelectric layers. The ammunition part or ammunition effect which penetrates the inert reactive armor modules and which generates the mechanical vibrations or shock waves provokes in one or more elements the generation of a voltage which can be used to initiate counteragents against the penetration.Type: ApplicationFiled: December 18, 2007Publication date: June 18, 2009Applicant: SAAB ABInventor: Jyrki Helander
-
Publication number: 20080141891Abstract: A method for reducing the amount of ammunition types to be used against a wide set of targets. At least two explosive charges are made use of in cooperation. Each of the explosive charges has changeable characteristics and is arranged to mutually cooperate in different ways depending on the particular changeable characteristics given to the explosive charges in a specific case and the type of target to be combated. An ammunition device admitting a reduction of the amount of ammunition types to be used. At least two cooperating explosive charges are arranged in a row along the direction of movement of the ammunition device when activated. Each of the explosive charges is switchable between at least two operating conditions having different operating characteristics.Type: ApplicationFiled: March 8, 2007Publication date: June 19, 2008Applicant: SAAB ABInventors: Christer Regebro, Jyrki Helander
-
Patent number: 6901864Abstract: The present invention relates to a method for attacking a target by means of a missile (1) with at least one shaped charge, the direction of action of which differs from the direction of flight of the missile, and to a missile (1) comprising at least one shape charge (2) arranged to act in a direction (4) that differs from the direction of flight (5) of the missile. The shaped charge jet is corrected for the speed of the missile (1). According to the invention, the correction of the shaped charge jet is adjustable, whereby the lethality of the missile can be achieved within a wide range of speeds of the missile.Type: GrantFiled: September 3, 2001Date of Patent: June 7, 2005Assignee: Saab ABInventor: Jyrki Helander
-
Publication number: 20040211335Abstract: The invention relates to an ammunition arrangement. The ammunition arrangement comprises at least two active parts (2, 3), each with its own active charge (4, 6), arranged axially one behind the other. In order to make large holes in walls and the like without problems of great weight, the second active charge (6) is designed to act essentially in the radial direction at right angles to the direction of movement of the active charge.Type: ApplicationFiled: May 25, 2004Publication date: October 28, 2004Inventor: Jyrki Helander
-
Publication number: 20040094060Abstract: The present invention relates to a method for attacking a target by means of a missile (1) with at least one shaped charge, the direction of action of which differs from the direction of flight of the missile, and to a missile (1) comprising at least one shape charge (2) arranged to act in a direction (4) that differs from the direction of flight (5) of the missile. The shaped charge jet is corrected for the speed of the missile (1). According to the invention, the correction of the shaped charge jet is adjustable, whereby the lethality of the missile can be achieved within a wide range of speeds of the missile.Type: ApplicationFiled: July 2, 2003Publication date: May 20, 2004Inventor: Jyrki Helander
-
Patent number: 6032583Abstract: The present invention relates to an ammunition unit in the form of a shell or the like, with at least two warheads connected via a supporting structure. In order to prevent the impact from the first activated warhead reaching the warheads situated to the rear, and to prevent an interference effect on these warheads, according to the invention a structure-dividing charge is arranged in the supporting structure in order to divide the structure into two separate parts.Type: GrantFiled: October 19, 1998Date of Patent: March 7, 2000Assignee: Bofors ABInventors: Gustav Karlstedt, Jyrki Helander, Lennart Sjoo, Miroslaw Benendo, Par Andersson, Richard Lindvall
-
Patent number: 5952604Abstract: A joint for a shell with at least a first charge unit and a second charge unit arranged in series one after the other is provided. The charge units include one shaped charge each. The charges are designed to be detonated one after the other with a time separation between the detonations. In order to suppress the interference to an undetonated charge by a shock wave generated by the detonation of a previously detonated charge, the joint that connects the charge units has been designed in a special way. The joint includes a damping section parallel to the longitudinal axis of the device, that mechanically fastens together the two charge units. In addition a rigid support device is connected to the damping section and dimensioned so that when the damping section is in an unstressed state there is a clearance in the longitudinal axis of the device between the two charge units.Type: GrantFiled: January 8, 1998Date of Patent: September 14, 1999Assignee: Bofors ABInventor: Jyrki Helander