Patents Assigned to Variform Oy
  • Patent number: 6558070
    Abstract: A protective arrangement comprising one or several plane structures such as protective plates or elements, each one of which is meant to be used with one or several similar ones and are removably attached to one another. The structural part is stiffened in proportion to bending and has stiffening ribs. The arrangement is meant for temporarily protecting a field of grass and/or ice. One or several plastic based thermal insulation assemblies are attached to the downward side of the supporting structural part. A supporting structure is formed from the thermal insulation assembly that projects from the downward surface of the stiffening ribs.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: May 6, 2003
    Assignee: Variform Oy
    Inventor: Jarkko Valtanen
  • Patent number: 6455127
    Abstract: A surface-covering protective structure. A thermal insulation layer has a basic wall thickness, fastening elements and a support arrangement integral with and projecting from the basic wall thickness of the thermal insulation layer. The support arrangement includes a plurality of supporting feet each comprising a supporting surface being operable to engage a protected surface that the protective structure is arranged on. The support arrangement is operable to physically separate the basic wall thickness of the thermal insulation layer from the protected surface. The fastening elements are operable to couple adjacent protective structures together. The protective structure, including the basic insulation layer, the fastening elements, and the support arrangement, includes thermally insulating plastic material operable to thermally insulate the protected surface.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: September 24, 2002
    Assignee: Variform Oy
    Inventor: Jarkko Valtanen