Patents Assigned to Nordsec Security AB
  • Refractory material and its use
    Patent number: 4806168
    Abstract: Refractory material based on grog and hydraulic or chemical binder. The refractory material contains a substantially evenly distributed content of a heat-resistant fiber reinforcement and cutting-material in individual pieces; the use of such refractory material as a constructional material in units for storing valuables, such as bank vaults, safes and the like; and a unit for storing valuables including such refractory material.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: February 21, 1989
    Assignees: Hoganas AB, Nordsec Security AB
    Inventors: Lennart Ivarsson, Rolf Lundqvist