Patents Assigned to Dynamit Nobel Aktiengesellschaft
  • Patent number: 6026666
    Abstract: A flow-turning process for manufacturing internally geared parts, including a press mandrel (10) comprising a mandrel (1) on which is fitted a forming tool (2) and one or more pressure rollers (3). A workpiece (4) is held between the forming tool (2) or press mandrel (10) and press rollers (3) and undergoes plastic deformation under the force exerted by the press rollers (3). The forming tool comprises chromium- and molybdenum-containing materials and is tempered and surface-hardened, and the distance between the forming tool (2) and the mounting of the press mandrel (10) in the machine is sufficient to permit a degree of deviation (.alpha.) by the forming tool (2) relative to the machine axis (5).
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: February 22, 2000
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Willi Zimmermann, Bernd Stein, Jurgen Zimmermann
  • Patent number: 5783987
    Abstract: A pyrotechnic high-current fuse element in which a current conductor located in a circuit to be protected is interrupted or displaced by ignition of a pyrotechnic charge when the current strength in the circuit exceeds a threshold value includes a separate component that can be installed in the circuit to be protected, to which component the ends of a current conductor to be cut are connected.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: July 21, 1998
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Heinz Kern, Gerhard Kordel
  • Patent number: 5750920
    Abstract: The current invention treats .alpha.-octogene which, with the aid of a new procedure, has been coated with synthetic materials in such a manner that it does not convert into .beta.-octogene at room temperature The coating is done at temperatures between 30.degree. and 60.degree. C. from an aqueous slurry; this causes granulates to form which can be heated to temperatures of 100.degree. C. without a rearrangement to .beta.-octogene to occur; even a grain growth does not take place. The granulates according to the invention are pourable and can be easily dosaged. .beta.-octogene can be coated in the same manner, particularly if it is coated as very fine grain of less than 50 .mu.m according to the invention. Thus, the current invention includes also the particularly fine .beta.-octogene, coated according to the current procedure, which shows the same properties as the required .alpha.-octogene.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: May 12, 1998
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Klaus Redecker, Gunter Schreiner, Wolfgang Spranger
  • Patent number: 5746026
    Abstract: A method for unlocking a window pane secured by a fastening element to a frame element of a window frame, with an inflatable pressure tube being located between the window pane and the frame element, said tube, upon being inflated, forcing the window pane out of the frame element. For reliable and improved element unlocking of the window pane, the pressure tube is inflated by actuation of at least one pyrotechnic gas generator connected to the pressure tube.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: May 5, 1998
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Brede, Anton Bretfeld, Joachim Fibranz, Gerhard Kordel, Josef Kraft, Peter Lehniger, Jens-Peter Reimer
  • Patent number: 5660803
    Abstract: A liquified gas-containing generator has a casing in which a reaction container containing liquified gas is accommodated. So as to trigger combustion of the liquified gas a puncture element with an overflow channel is driven into the reaction container. The kinetic energy for the puncture element is generated pyrotechnically by initiation of an ignition element. The ignition gases of the ignition element pass via the overflow channel into the interior of the reaction container where these gases induce combustion of the liquified gas. The combustion gases arising thereby pass via the overflow channel out of the reaction container into a hollow space in which the puncture element is arranged. The hollow space is sealed in relation to a discharge passage by a bursting membrane. This bursting membrane bursts open when a minimum pressure of the combustion gases is reached and thereby opens the way for discharge of the combustion gases out of the casing via the discharge passage.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: August 26, 1997
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Brede, Alfred Horr, Josef Kraft, Heinz Riess
  • Patent number: 5589657
    Abstract: A detonating system includes a detonator within a thermal insulating container. In order for the detonator, especially an electronic detonator, to be usable at higher temperatures, the detonator is surrounded by the thermal insulating container especially a Dewar vessel.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: December 31, 1996
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Gessel, Rolf Rospek, Helmut Zollner
  • Patent number: 5578785
    Abstract: Metal complex compounds having the general formula Me(DADPyOx).sub.x wherein Me stands for a transition metal ion, DADPyOx stands for 2,6-diamino-3,5-dinitropyridine-1-oxide and x represents an integer of 1, 2, 3, or 4. These compounds are useful as insensitive, high-energy explosives.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: November 26, 1996
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventor: Nikolaus Fiederling
  • Patent number: 5495748
    Abstract: The invention relates to a method and an apparatus for monitoring of gas leakage from a gas or liquefied gas container. For simple and reliable monitoring of gas leakage, parts of the container (1) where there is a risk of leakage are connected to an at least partially evacuated measuring chamber (2) and a change in the pressure in the measuring chamber (2) is employed as a measure of the gas-tightness of the container (1).
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: March 5, 1996
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Brede, Josef Kraft
  • Patent number: 5492065
    Abstract: A plastics cartridge has a cartridge body provided with a flange which has a plastic casing body, open on one side, is for accommodating a propellent charge and an ignition charge for igniting the propellant charge and has a plastics cover for closing the open end of the casing body. A flange is located on the end of the casing body on the cover side. if the cartridge body is inserted into the firing device, the flange extends into a space which passes out of a receiving chamber of a cartridge recess and is formed by cartridge recess and bottom of the breech of the firing device. In the section in which it extends in the propagation direction of the pressure wave arising on ignition of the propellent charge, the flange of the cartridge body is tapered--in the propagation direction--at least over a part of said section. The flange therefore forms a wedge which is inserted into the wedge-shaped space between the cartridge recess and bottom of the breech.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: February 20, 1996
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Hans Jena, Kurt Ballreich
  • Patent number: 5481978
    Abstract: A cartridge case especially for firing in handguns has a primer receiving pocket provided in the bottom or rear portion as a cylindrical recess, into the top of which at least one flash hole terminates, a primer cap mounted flush in the primer receiving pocket including a cup-shaped capsule having a capsule bottom and a cylindrical side wall, and with a primer charge and an anvil located inside the capsule.To improve gas tightness in the direction of the breech of the gun, especially in the use of pollutant-free primer charges, the primer receiving pocket is provided in the vicinity of a side wall of the capsule with an annular circumferential expansion zone, so that the anvil has room to deflect after ignition of the primer charge and expansion of the capsule.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: January 9, 1996
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Friedrich Muller, Heinz Riess
  • Patent number: 5471932
    Abstract: A gas generator, especially for an airbag of a vehicle having a cylindrical outer tube, open end faces of which are closed by cover elements, comprising an inner tube of smaller diameter which is arranged coaxially inside the outer tube and which has outflow openings, an ignitable gas-generating material inside the inner tube, filter elements in an annular space arranged between the inner tube and the outer tube, and an igniter unit for igniting the gas-generating material. In order to improve the damming and sealing of the outflow openings, there is arranged in the inner tube a rolled-up, self overlapping damming strip adjoining the wall at least partially. Also, the outflow openings are covered on the outside of the inner tube by a sealing strip having at least two mutually overlapping portions of differing widths.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: December 5, 1995
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Josef Kraft, Gerrit Scheiderer
  • Patent number: 5471903
    Abstract: A device for igniting a propellant charge is provided with a housing defining a cavity wherein a piston is displaceably guided. The cavity is connected via a bore acting as a nozzle to a chamber wherein a case member of a cartridge is arranged for accommodating the propellant charge. A bottom wall of the case member is equipped with a bore aligned with the bore acting as a nozzle. A primer wafer is disposed on the inner surface of the bottom wall, this wafer being thinner in its central zone than in its marginal zone. The central zone of the primer wafer is a region under mechanical thermal stress during compression, the ignition energy being introduced to the primer wafer via this region in the form of hot compressed air from the compression chamber.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: December 5, 1995
    Assignees: Dynamit Nobel Aktiengesellschaft, Hilti Aktiengesellschaft
    Inventors: Uwe Brede, Alfred Horr, Hans Jena, Bodo Preis, Wolfgang Spranger
  • Patent number: 5466313
    Abstract: A gas-producing material for a gas generator, particularly for a belt tightener or for an inflatable impact cushion (airbag) to protect motor vehicle occupants, containing a liquefied gas mixture in which the liquefied gas components consist of a mixture of one or more ethers, olefins, ammonia or hydrogen and nitrous oxide (N.sub.2 O).
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: November 14, 1995
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Brede, Rainer Hagel, Klaus Redecker
  • Patent number: 5446986
    Abstract: In a multiple-barrel firearm with removable lock housing, the two axially moveable strikers are arranged in superposed relationship, preferably being angular and provided with grooves or edges; this arrangement permits, even in case of only one solid sidewall, a favorable guidance of the strikers and contributes considerably toward making the lock housing very narrow. Since, in this firearm, the movement of a cocking bar just as the movement of firing pins takes place approximately in parallel to the movement of the strikers, the advantage is obtained in addition to a relatively simple structure that the energy for cocking coil springs guided by means of guide pins can be at a minimum as well. The guide pins connected with the strikers also take over safety functions.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: September 5, 1995
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventor: Horst Blaser
  • Patent number: 5433147
    Abstract: An electrical ignition device (1) has a metal container (2) for a firing resistor or bridge, a first (3) and a second (4) terminal pin and at least one ignition charge (5, 6).So that firing of the ignition charge does not occur in the event of electrical discharges between terminal pins and a housing, it is proposed that the container (2) be capable of being embedded in a plastic material by injection moulding and inserted in the housing, that a first outward extension (8) be provided on the container (2) which is electrically conductively connected to the first terminal pin (3), and that a second outward extension (9) be provided on the container (2) which can be formed so as to extend to the housing leaving a small clearance and of which an outer end is not embedded in the plastic material.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: July 18, 1995
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Brede, Anton Bretfeld, Peter Cornelius, Hans Jena
  • Patent number: 5415105
    Abstract: The invention relates to a tandem warhead with a preliminary charge (1) and a main charge (2) respectively each with an associated fuse (3, 4).So that on ignition two fuses (3, 4) which are completely identical can be used, piezoelectrical percussion fuses (3, 4) are used which can be triggered by shockwaves. To establish the delay period of the fuses (3, 4) the housing construction, the arrangement of the fuses (3, 4) and the material composition of the housing (5) are to be selected in such a way that the propagation time of the shockwave imparts the required delay period.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: May 16, 1995
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Alfred Voss, Wolfgang Poetes
  • Patent number: 5394801
    Abstract: One fuse head has an insulating pole body with electrically conducting longitudinal strips, an incandescence bridge arranged on the pole body between the strips and connecting wires. The glow bridge and the connecting wires each being connected via soldered joints to the longitudinal strips. The fuse head also has at least one priming explosive and an external varnish finish coating covering the at least one priming explosive. To improve adherence, to facilitate the manufacturing process, to reduce the size of the solder joints, and to reduce the weight distribution of the priming explosive, it is proposed to arrange on the pole body, perpendicular to the pole body axis, grooves which are filled with priming explosive. Another fuse head has a basic module with electrically conducting pole supports running through it, the ends of the supports being connected on the ignition side via an incandescence bridge.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: March 7, 1995
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Gunther Faber, Hans Florin
  • Patent number: 5388860
    Abstract: The safety device has a gas generator for generating gas, which is accommodated in a rigid housing. The housing is open at one side and is sealed in this region by an originally folded sheet of a gas cushion. When igniting the gas generator, the sheet unfolds outwards over the open side and forms the gas cushion filled with gas under pressure. The gas escapes by way of at least one escape opening, formed in a housing wall, with a variable effective cross-sectional area, when the passenger pitches into the gas cushion. The effective cross-sectional area is altered by a temperature-controlled escape opening-adjusting device so that at high gas internal pressures, the cross-sectional area is greater than at lower gas internal pressures. With this arrangement, the temperature-dependent alterations in the catching or impact reduction characteristic of the gas cushion are thereby compensated for.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: February 14, 1995
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Brede, Josef Kraft
  • Patent number: 5355766
    Abstract: A magazine for cartridges ignitable by adiabatic compression is especially useful for stud driving or setting tools. The magazine has a plurality of cartridges made of synthetic resin and a magazine belt made of synthetic resin for connecting the plurality of cartridges together. The magazine belt forms bottom walls of the cartridges and in the region of each of the bottom walls is provided with an intentional separation zone. A primer wafer is provided on the magazine belt in the region of the bottom wall near the intentional separation zone. Each primer wafer in an area near the intentional separation zone is thinner than in the remaining zone surrounding the area.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: October 18, 1994
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Uwe Brede, Alfred Horr, Hans Jena, Bodo Preis, Wolfgang Spranger
  • Patent number: 5309855
    Abstract: In a submarine weapon, particularly for combating submarines, a rocket engine with continuous rocket thrust is utilized as the submarine drive unit. An actively locating, acoustic target seeking device is provided for target detection and target pursuance, the ranging frequency of which is selected so that the echo level to be expected from its detection range lies above the noise level of the rocket engine.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: May 10, 1994
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Wolfgang Bottger, Uwe Kellermeier, Gerrit Plumecke, Rainer Schoffl