Patents Assigned to PIO AB
  • Compacted metallic wire element
    Patent number: 4853293
    Abstract: The invention relates to methods for producing a metallic element such as a gasket (12) or a filter. The production methods relate to compacting of a stud (10) of coiled wire (11) having a rectangular cross-section into a compacted metallic element (12) and sintering of said element at an elevated temperature. The wires of the compact and sintered metallic element (12) are mutually interlocked.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: August 1, 1989
    Assignees: Sandvik AB, Pio AB
    Inventors: Lars Andersson, Berndt Stenlund, Rolf Wiberg
  • Device for purification of exhaust gases
    Patent number: 4818497
    Abstract: An exhaust gas purifier of the type wherein a catalytic body is elastically supported within a metal casing. This is achieved by at least partly filling a space between the catalytic body and the metal casing with a dampening member comprising one or more wire blocks. The wire is preformed of a screw shape and that preformed wire is wound into the shape of the block. This block is stretched to elastically fit over the body, and the block is compressed between the body and the casing.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: April 4, 1989
    Assignees: Sandvik AB, PIO AB
    Inventors: Lars Andersson, Berndt Stenlund, Rolf Wiberg