Patents Assigned to Dynamit Nobel AG
  • Patent number: 5571988
    Abstract: A gas-producing material for a gas generator, particularly, for an inflatable impact cushion for protecting motor vehicle passengers is made up of a combustible liquid gas mixture of one or several short-chain hydrocarbons and nitrogen monoxide. As a result of exothermic action during combustion there is a multifold increase in volume so that no filters which are required for solid matter generators, are necessary.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: November 5, 1996
    Assignee: Dynamit Nobel AG
    Inventors: Rainer Hagel, Uwe Brede
  • Patent number: 5335600
    Abstract: The invention relates to a propellant charge igniter mountable in a propellant charge carrier or in a cartridge. Propellant charge igniter is provided with an expulsion charge to avoid breech flash, said charge being suitable for driving an ignition guide tube completely out of an annular chamber formed between a bottom part and a flame guide tube of the propellant charge igniter.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: August 9, 1994
    Assignee: Dynamit Nobel AG
    Inventors: Alfred Horr, Heinz Reiss, Uwe Brede
  • Patent number: 5330730
    Abstract: Gas generator for an inflatable impact cushion for protecting an occupant of a motor-vehicle from injury, has a housing, in which is formed a storage chamber for liquified gas. The storage chamber is separated by a partition wall from a combustion chamber also formed in the housing. An ignition device is positioned in a precombustion chamber, and has an ignition charge to generate combustion gases during ignition. In the precombustion chamber there is guided, in a displaceable manner, a piston which, because of the combustion gases of the ignition charge, moves into and through the combustion chamber in a direction of the partition wall, in order to penetrate the partition wall. When the partition wall is penetrated there is a connection between the storage chamber and the combustion chamber by way of a liquified gas channel system so that liquified gas can flow into the combustion chamber.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: July 19, 1994
    Assignee: Dynamit Nobel AG
    Inventors: Uwe Brede, Josef Kraft, Wolfram Seebeck
  • Patent number: 5311692
    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: July 9, 1992
    Date of Patent: May 17, 1994
    Assignee: Dynamit Nobel AG
    Inventor: Horst Blaser
  • Patent number: 5259318
    Abstract: An expansive smoke configuration can be produced manually or automatically by the rapid, repeated discharge of smoke-forming liquid jets. A suitable device consists essentially of one or several movable tubes, each equipped with a nozzle, in conjunction with cartridges occupying the entire tube volume and having a liquid chamber and a propellant charge chamber. In case of two-component smokes, cartridges filled respectively with the two components (N1, N2) are fired in alternation. The device lends itself very well to automatic operation.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: November 9, 1993
    Assignee: Dynamit Nobel AG
    Inventors: Erich Alker, Johannes Eich
  • Patent number: 5259643
    Abstract: A gas generator is provided with a housing which is open at two opposing end faces and a housing wall in which several gas orifices are arranged. The housing is formed as an extruded hollow profile of aluminum or an aluminum alloy. A combustion chamber is accommodated in the housing, in which combustion chamber gas-generating material which is ignitable by means of an ignition unit is accommodated. The combustion gases arising with the ignition of the gas-generating material are cleaned within the housing by filter elements and discharged by means of the gas orifices. The filter elements are supported by holding sections integral with the extruded hollow profile and are inserted by means of one of the open end faces of the extruded hollow profile. In the installed state the filter elements extend in a straight line between the holding sections associated therewith.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: November 9, 1993
    Assignee: Dynamit Nobel AG
    Inventors: Josef Kraft, Gerrit Scheiderer, Hans Winkler
  • Patent number: 5252287
    Abstract: A method and apparatus for injection molding of thermoplastic material to form a hollow article in a closed mold in which a molten thermoplastic material is introduced from an injection nozzle into a mold cavity through an opening in the mold, and a pressurized gas is introduced together with the molten thermoplastic material through said opening so that the gas forms a hollow cavity under pressure within the thermoplastic material filling the mold. After the thermoplastic material is solidified to form a hollow article within the closed mold, the gas pressure in the hollow cavity of the article is reduced and the mold is opened. The pressurized gas is introduced into the mold from a gas source and the gas pressure is subsequently reduced by recycling at least a portion of the gas in the hollow cavity to the gas source, thereby avoiding loss of the gas to the surrounding atmosphere.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: October 12, 1993
    Assignee: Dynamit Nobel AG
    Inventor: Bernd Fries
  • Patent number: 5237926
    Abstract: By means of multi-member, spreadable righting assemblies, a supporting area can be enlarged in connection with a rightable drop unit, the torque required for righting can be reduced, and the stability can be enhanced. In order to provide that a base of each righting assembly does perform the desired, defined movement, at least one guide member (for example a parallel guide means) is included. The afore-mentioned improvements can be attained practically without an increase in the volume or in the weight of the drop unit.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: August 24, 1993
    Assignee: Dynamit Nobel AG Aktiengesellschaft
    Inventor: Johannes de la Haye
  • Patent number: 5160804
    Abstract: The present invention pertains to fin-stabilized projectile ammunition, in which fin-stabilized projectiles are arranged in a cartridge case filled with propellant charge powder. According to the present invention, the spaces between the fins of the tail plane (4) of the fin-stabilized projectile (13) are filled with prefabricated shaped bodies (7) made from propellant charge powders. These shaped bodies in the ammunition are adjacent to the propellant charge powder in the cartridge case, and permit optimal utilization of the free space between the tail plane fins (20) of the projectiles being filled with high-energy propellant charge. Furthermore, the shaped bodies according to the present invention prevent corrosion of the tail plane fins during the burning off of the ammunition, and facilitate the manufacture of the ammunition.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: November 3, 1992
    Assignees: Mauser-Werke Oberndorf GmbH, Dynamit Nobel AG
    Inventors: Gero Wahner, Dieter Girke
  • Patent number: 5125319
    Abstract: A safety mounting system in a launching device for rockets also provides a safe rocket conveying device by virtue of an additional locking arrangement. The locking arrangement establishes a shape-mating connection between the rocket and a launch tube preferably by use of a pin engaging into a bore in the launch tube. Prior to launching of the rocket, the pin is retracted by a pyrotechnical power element. The firing ballistics of the rocket are not impaired by this additional safety feature.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: June 30, 1992
    Assignee: Dynamit Nobel AG
    Inventors: Detlef Goricke, Manfred Rudiger
  • Patent number: 5111607
    Abstract: The fixation of the barrel housing to the breech housing in a break-open gun is controlled by a top lever breechblock, the bottom of which carries, in a groove, countersunk, a connecting member with an eccentric tenon in a displaceable fashion, the tenon being insertable in one of two bores in a control part, and the control part driving the breechblock wedge or wedges, wherein at least one spring between the control part and the breechblock wedge absorbs, when the control wedge is not worn, a distance increment so that the breechblock lever during locking can always go back into a central position. The gun can readily be refitted from a right-hand shooter to a left-hand shooter: the connecting member is rotated by 180.degree. and inserted in the opposite bore, the spring stop is likewise turned, and the breech spring is exchanged with the pressure bolt and the stop bolt.
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: May 12, 1992
    Assignee: Dynamit Nobel AG
    Inventor: Horst Blaser
  • Patent number: 5056407
    Abstract: By the installation of elastic elements between a rocket and a retaining sleeve (or, respectively, a retaining sleeve and a launching device, or within a launching device), peak loads are reduced and breakage of a connecting member or, respectively, of the parts of the retaining sleeve corresponding to this connecting member is avoided.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: October 15, 1991
    Assignee: Dynamit Nobel AG
    Inventor: Christoph Mathey
  • Patent number: 5011614
    Abstract: A process for effecting thermal decomposition of explosive nitric acid esters in wastewater effluents of the explosives industry wherein no additional by-products are produced and wherein the danger of explosions is avoided. In this process, the dissolved esters are exposed to a temperature of between 150.degree. and 300.degree. C. under pressure lying above the boiling pressure of the wastewater. During this step, the nitric acid esters are completely decomposed, and the wastewater treated in this way can then be passed on to further processing and purification. In a preferred embodiment, the hot wastewater exiting from a decomposer unit is exploited for preheating the effluent before it enters the decomposer unit.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: April 30, 1991
    Assignee: Dynamit Nobel AG
    Inventors: Wilhelm Gresser, Klaus Schelhase, Heinz Frisch, Klaus Kaschel, Berent Reinecke, Wilhelm H. Trautmann
  • Patent number: 4952460
    Abstract: An improvement in a method for manufacturing a composite safety glass wherein one or more silicate glass panes is bonded to a plasticized synthetic resin film at an elevated temperature, the improvement residing in employing as the plasticized synthetic resin film a soft film of a polymer of ethylene and/or propylene and effecting the bonding under pressure at a temperature of at least 120.degree. C. and up to 200.degree. C.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: August 28, 1990
    Assignee: Dynamit Nobel AG
    Inventors: Rolf Beckmann, Wilhelm Knackstedt
  • Patent number: 4909686
    Abstract: A pyrotechnical dowel has a shank and a deformation chamber located at the forward end of the shank. The chamber contains a blasting cap. Triggering of the blasting cap takes place from the rearward end of the shank by means of a triggering tool which is introduced into a longitudinal duct within the shank and which comes into direct contact with a bottom of the blasting cap.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: March 20, 1990
    Assignee: Dynamit Nobel AG
    Inventors: Richard Bender, Anton Bretfeld, Axel Homburg
  • Patent number: 4889875
    Abstract: The present invention relates to hard foams having foamed and hardened phenolic resins as binding agents, and in which over 90% of the filler is aluminum hudroxide. The filler content is more than 100% with respect to the resin content of the foams. The foamble, filler-containing composition used for the production of the foams is very fluid and can be used directly for the production of moldings of any desired geometry. The aluminum hydroxide used has a grain size distribution such that between 30 to 60% of the filler is in the grain size range under 5 microns. The moldings containing the hard foam can also be in the form of composites. They are characterized not only by their good insulating properties but also by improved compressive strength, extremely little shirinkage tendency and extraordinarily high fire resistance. They are used mainly in the construction industry.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: December 26, 1989
    Assignees: Dynamit Nobel AG, Isobloc GmbH
    Inventors: Aloys Aust, Josef Tiroux, Franz Weissenfels
  • Patent number: 4888145
    Abstract: A process for the production of thick synthetic resin sheets having a multicolor pattern, involves processing heated thermoplastic chips into a coherent sheet by means of a pair of rolls profiled to a depth of about 0.1-0.5 mm which effect partially differing densification.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: December 19, 1989
    Assignee: Dynamit Nobel AG
    Inventors: Kurt Allner, Hans Brinkmann, Bernhard Kraemer, Herbert Schulte
  • Patent number: 4868239
    Abstract: Disclosed are casting resins made from acrylic acid esters with a high content of finely dispersed fillers. The casting resins contain a polymeric organosilicon compound having functional and nonfunctional groups. As functional groups, the copolymer contains one or more alkoxysilyl groups and one or more (meth)acryloxysilyl groups. The copolymer furthermore contains by copolymerization at least one nonfunctional comonomer having an ethylenically unsaturated grouping as well as an additional comonomer of the group of the vinyl carboxylic acid esters and (meth)acrylic acid esters, if desired. The addition of these polymeric organosilanes to known casting resins brings about a greater lowering of the viscosity of these resins, which are used, for example, for the manufacture of sanitary appliances.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: September 19, 1989
    Assignee: Dynamit Nobel AG
    Inventors: Gunther Bernhardt, Horst Hanisch
  • Patent number: 4790970
    Abstract: A process for the manufacture of a launching tube with an internal guide surface for effecting controlled spin missiles, such as rockets, wherein the launching tube is provided on the inside with helically extending grooves and/or ridges contacting guide cams or the like of the missiles for guiding therealong; this launching tube is extruded, and sized, from a molding composition containing fiber-reinforced thermoplastic synthetic resin, to have integrally formed, slightly helically extending grooves and/or ridges.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: December 13, 1988
    Assignee: Dynamit Nobel AG
    Inventors: Josef Kurth, Christoph Mathey, Waldemar Wissinger
  • Patent number: 4772327
    Abstract: Disclosed is a spray concrete which, even at a water-cement ratio of 0.45 to 0.55, is still easy to work, can be sprayed well, and sets and hardens rapidly. It contains, in addition to the conventional additives, additions of naphthalinesulfonicacid-formaldehyde condensation products and highly concentrated alkaline aqueous solutions of potassium aluminate, potassium carbonate and caustic potash. The concrete according to the invention displays an especially rapid solidification when it contains up to 3% by weight alkali silicates or an adequate amount in highly dispersed silicic acid (SiO.sub.2). The additives are incorporated into the concrete preferably directly at the worksite prior to spraying.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: September 20, 1988
    Assignee: Dynamit Nobel AG
    Inventors: Kurt Allemann, Klaus Deneke, Hansjurgen Hass, Gunter Vogel