Patents by Inventor Aira Liitola

Aira Liitola 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).

  • Publication number: 20170275823
    Abstract: The invention relates to a dryer fabric, which is woven of machine direction yarns (2) and cross machine direction yarns (3). The machine direction yarns (2) have free long float above at least seven cross machine yarns on a paper side (P) of the dryer fabric (1). Further, the fabric has double cloth structure having machine direction yarns in two successive layers (2a, 2b).
    Type: Application
    Filed: March 18, 2016
    Publication date: September 28, 2017
    Inventors: Rauno Enqvist, Aira Liitola
  • Patent number: 7624767
    Abstract: A dryer fabric and a seam area of a dryer fabric. The basic structure of the dryer fabric having at least two superposed machine direction yarn systems. Some yarns of a paper side machine direction yarn system form seam loops at connecting ends and some of the paper side machine direction yarns form an edge of the seam area. All the machine direction yarns of the paper side system make a backward turn at the connecting end and they are fastened off on the backside. The paper side machine direction yarns are cut at a cutting point. Cutting points form a fasten-off row. Yarns that form seam loops are fastened off in a first fasten-off row and yarns that form an edge of the seam area are fastened off in one or more second fasten-off row. One fasten-off row is situated at the beginning line of the seam area.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: December 1, 2009
    Assignee: Tamfelt PMC Oy
    Inventors: Rauno Enqvist, Aira Liitola