Patents Assigned to Billingsfors Bruks Aktiebolag
  • Water barrier flotation curtain
    Patent number: 4333726
    Abstract: The present invention relates to a so-called water barrier flotation curtain, i.e., a device for confining floating water contaminants, particularly oil, and is more particularly concerned with a curtain of the type comprising an elongated barrier provided with floating means and sinkers or weights to maintain the curtain in an essentially vertical floating position having its upper elongated edge area positioned above water level, wherein the barrier is constructed of water-resistant paper.
    Type: Grant
    Filed: May 11, 1977
    Date of Patent: June 8, 1982
    Assignee: Billingsfors Bruks Aktiebolag
    Inventor: Kaj O. H. Fuxelius