Patents by Inventor Jari Viljakainen

Jari Viljakainen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pressure-loaded panel and use for boat and container construction
    Patent number: 6861119
    Abstract: A substantially laterally pressure-loaded panel has a side aspect ratio of at least 1.5, is formed of at least two reinforcement layers of substantially unidirectional fibers. The predominant orientation of the fibers form an angle of between about ±55°-±75° (preferably about 60°) with the longer side of the panel, with about one-half of the layers having a positive (+) angle and about one-half a negative (?) angle, within the range. The panel preferably has about 60-100% of its thickness formed by the reinforcement layers. The panels can be used can be used in boat and/or shipbuilding structural panels, pressure-loaded tanks, pressure-vessels and other corresponding structures that are subjected to a lateral pressure load.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: March 1, 2005
    Assignee: Ahlstrom Glassfibre Oy
    Inventors: Rainer Bergström, Jari Viljakainen
  • Pressure-loaded panel and use for boat and container construction
    Publication number: 20040102121
    Abstract: A substantially laterally pressure-loaded panel has a side aspect ratio of at least 1.5, is formed of at least two reinforcement layers of substantially unidirectional fibers. The predominant orientation of the fibers form an angle of between about ±55°-±75° (preferably about 60°) with the longer side of the panel, with about one-half of the layers having a positive (+) angle and about one-half a negative (−) angle, within the range. The panel preferably has about 60-100% of its thickness formed by the reinforcement layers. The panels can be used can be used in boat and/or shipbuilding structural panels, pressure-loaded tanks, pressure-vessels and other corresponding structures that are subjected to a lateral pressure load.
    Type: Application
    Filed: October 20, 2003
    Publication date: May 27, 2004
    Applicant: Ahlstrom Glassfibre Oy
    Inventors: Rainer Bergstrom, Jari Viljakainen
  • PRESSURE-LOADED PANEL AND ITS USE AT BOAT OR CONTAINER CONSTRUCTIONS
    Publication number: 20030129906
    Abstract: A substantially laterally pressure-loaded panel has a side aspect ratio of at least 1.5, is formed of at least two reinforcement layers of substantially unidirectional fibers. The predominant orientations of the fibers form an angle of between about ±55°-±75° (preferably about 60°) with the longer side of the panel, with about one-half of the layers having a positive (+) angle and about one-half a negative (−) angle, within the range. The panel preferably has about 60-100% of its thickness formed by the reinforcement layers. The panels can be used in boat and/or shipbuilding structural panels, pressure-loaded tanks, pressure-vessels and other corresponding structures that are subjected to a lateral pressure load.
    Type: Application
    Filed: March 10, 2000
    Publication date: July 10, 2003
    Inventors: RAINER BERGSTROM, JARI VILJAKAINEN