Patents by Inventor Jurg Meister

Jurg Meister 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: 6672218
    Abstract: A self-propelling projectile allowing restricted local target effects comprises a penetrator core, a charge for at least partially fragmenting the core at a target, and autonomous ignition device for the charge. The penetrator core has a stepped tip with a forward exterior dart angle and a larger following acute angle and a dart shank that tapers towards a rear end of the core. A coaxial cavity is located within at least a rear portion of the core carries an active substance is next to an explosive charge for opening the cavity at the target. The active substance can either be of lethal or non-lethal characteristics. The projectile can be configured to be usable with conventional launchers and auxiliary equipment.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: January 6, 2004
    Assignee: Ruag Munition
    Inventors: Rolf Oechslin, Jürg Meister
  • Publication number: 20030205160
    Abstract: A self-propelling projectile allowing restricted local target effects comprises a penetrator core, a charge for at least partially fragmenting the core at a target, and autonomous ignition device for the charge. The penetrator core has a stepped tip with a forward exterior dart angle and a larger following acute angle and a dart shank that tapers towards a rear end of the core. A coaxial cavity is located within at least a rear portion of the core carries an active substance is next to an explosive charge for opening the cavity at the target. The active substance can either be of lethal or non-lethal characteristics. The projectile can be configured to be usable with conventional launchers and auxiliary equipment.
    Type: Application
    Filed: December 18, 2002
    Publication date: November 6, 2003
    Inventors: Rolf Oechslin, Jurg Meister
  • Patent number: 6453788
    Abstract: To remove means of combat such as mines and unexploded ordnance increasing use is made of hollow charges. Inherent in these is the risk of triggering premature ignition since their liners contain metals. According to the invention a hollow charge (4) suitable for eliminating means of combat is configured largely free of metals and has a liner (3) made of an electrically non-conductive, amorphous material. The material of choice is glass, which when configured correspondingly in addition has a projectile-forming effect and thus raises penetration capability. Apart from lowering environmental pollution the use of metal-free devices also eliminates false alarm messages in metal detectors during mine clearance and therefore significantly improves the safety of mine clearance personnel. The support (16) carrying the hollow charge (4) is fitted with a ball joint (13, 14), resulting in high adaptability to the place of use and type of combat means (M) concerned.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: September 24, 2002
    Assignee: SM Schweizerische Munitionsunternehmung AG
    Inventors: Francis Lebet, Jürg Meister
  • Patent number: 6443068
    Abstract: Hollow charges are often used for combating moving, lightly armored targets and do not fulfill their task due to relatively small effective charges which arrive at the target. When using blasting charges for civilian purposes, large borings must often be made at inaccessible positions without substantially affecting the environment. A shape charge (8) having a lining (3) which explodes outward in the axial area thereof punches an overcalibrated opening in the target area. A large effective charge (7) or other elements can be inserted through said opening. According to the invention, the delayed ignition of a large effective charge (7) results in a massively increased effect thereof in the target. The ammunition body (1) is provided for use predominantly in combating moving, lightly armored targets, but can also be used for oil exploration and delivery.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: September 3, 2002
    Assignee: Ruag Munition
    Inventor: Jurg Meister
  • Patent number: 4920079
    Abstract: A water-filled pressure chamber (7) loaded by conventional pumps at pressures of several thousand bars is used to isostatically press explosive charges. Inside this pressure chamber (7) is a compression mold (6) having an inner/outer mold (1) consisting of several components. Explosives in the mold are subjected through an elastic sleeve (3) to liquid pressure (p), so that the interior pressure in the chamber will be nearly isostatic. Following pressure relief, Dimensionally accurate and homogeneous precision explosive charges are obtained.The present invention also includes the process using the pressure chamber. The invention increases manufacturing output and quality of explosive charges so produced.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: April 24, 1990
    Assignee: Schweizerische Eidgenossenschaft Vertreten Durch: Eidg. Munitionsfabrik Thun Der Gruppe Fur Rustensdienste
    Inventors: Rudolf Kaeser, Jurg Meister