Patents Assigned to Expand International AB
  • Patent number: 6836988
    Abstract: The present invention relates to an arrangement enabling edge-to-edge joining, by means of a magnetic attractive force, of a first edge portion 811a) of a first panel (11) in a display system to a second edge portion (12b) of a second panel (12), a first magnetised strip (11e) being applied to said first edge portion (11a) and a second magnetised strip (12b) being applied to said second edge portion (12b). The magnetised strips (11e, 12d) are assigned such magnetisation directions (s-n; n-s) that, in a position where the edge portions are in proximity and/or co-operating with each other, they assume a position attracted to each other. Said strips (11e, 12d) consist of a material different from the material of the panel (11, 12). The modulus of elasticity and the thickness (2600 MPa; 0.2 mm) of said panel (11) and the modulus of elasticity and the thickness (100 MPa; 0.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: January 4, 2005
    Assignee: Expand International AB
    Inventor: Christer Zarelius
  • Patent number: 5161344
    Abstract: A portable display structure comprising a number of upright columns joined by a number of horizontally extending beams, the columns and/or beams being formed in a similar manner of a central structural member made of a number of units and each unit comprising a plurality of rod elements connected at their ends to associated hubs.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: November 10, 1992
    Assignee: Expand International AB
    Inventor: Hannu Kahonen
  • Patent number: D483188
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: December 9, 2003
    Assignee: Expand International AB
    Inventor: Christer Zarelius
  • Patent number: D499907
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: December 21, 2004
    Assignee: Expand International AB
    Inventor: Christer Zarelius