Patents Assigned to Bofors Explosives AB
  • Patent number: 6013794
    Abstract: The present invention relates to a method of working up and recovering returned explosives which are principally of the military type and which contain both fusible and non-fusible crystalline substances. In accordance with the invention, the returned explosive is treated in a multi-stage process which includes a first leaching stage for removing the non-crystalline, preferably fusible, component of the explosive in the form of trotyl, wax or plastic. The substance used in the leaching stage, principally toluene, does not affect the crystalline components of the explosive. The collected leaching liquid is separated off and the toluene, together with its dissolved content of trotyl or wax, is conveyed onwards for working up.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: January 11, 2000
    Assignee: Bofors Explosives AB
    Inventor: Jan-Olof Nyqvist
  • Patent number: 5695216
    Abstract: An airbag device including a gas-emitting substance chamber having an opening. A gas-emitting substance is provided in the gas-emitting substance chamber including between about seventy-six to about eighty percent by weight of a high energy explosive and about twelve to about fifteen percent by weight of a combustible binder. An igniter provided within the gas-emitting substance chamber ignites the gas-emitting substance. A pressure reducing valve arranged in the opening of the gas-emitting substance chamber maintains a desired pressure in the gas-emitting substance chamber during burning of the gas-emitting substance. A gas container having an opening contains a gas for oxidizing gas produced by burning of the gas-emitting substance. A closure closes the opening in the gas container. A mixing chamber is joined to the gas-emitting substance chamber and the gas container in the vicinity of the opening of the gas-emitting substance chamber and in the vicinity of the opening of the gas container.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: December 9, 1997
    Assignee: Bofors Explosives AB
    Inventors: Jorgen Sandstrom, Anders Hafstrand, Per Sjoberg