Two-weft Planes Patents (Class 139/413)
  • Patent number: 4228829
    Abstract: Webbing is formed by weaving wefts and warps of high extensibility and has warp threads of low or medium extensibility suitably spaced apart in the widthwise direction of the webbing and woven into the webbing to form energy absorbing portions.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: October 21, 1980
    Assignees: NSK-Warner K.K., Kikuchi Kogyo K.K.
    Inventor: Kouichi Kikuchi
  • Patent number: 4171009
    Abstract: An endless forming fabric for paper-making machine comprises at least two layers of transverse threads and one layer of longitudinal threads. The upper loops formed by the longitudinal threads cover from three to seven transverse threads of the upper layer. The leading crossing points of these upper loops with the transverse threads are distributed in a weave pattern using at least five longitudinal threads. The weave pattern on the paper side of the fabric is selected so as to avoid alignment of the upper loops of adjacent threads and diagonal effects. The lower loops formed by the longitudinal threads, on the machine side of the fabric, pass each time only underneath a single transverse thread of the lower layer.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: October 16, 1979
    Assignee: Etablissements Martel, Catala & Cie S.A.
    Inventor: Robert Karm
  • Patent number: 4116756
    Abstract: A processing housing containing a primary stage spray chamber, a filter stage and redryer chamber, a second stage drying chamber and a cooling stage chamber all in communication one with the other. The primary stage spray chamber has an outlet at the lower end thereof and at least one hot gas inlet port thereof in the upper portion thereof with a source of drying gas connected thereto. At least one spray nozzle extends into the spray chamber and a draft producing means is provided to force the drying gas from the gas source through the spray chamber and out through the outlet thereof. An endless connecting belt is supported for horizontal movement adjacent the outlet of the spray chamber, said belt traveling from the primary stage spray chamber through the filter stage redryer chamber, then through the second stage drying chamber and then through the cooling stage chamber.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: September 26, 1978
    Assignee: Dec International, Inc.
    Inventor: Jack A. Quee
  • Patent number: 4071050
    Abstract: A double-layer forming wire for paper-making, cellulose and similar machines, said wire being particularly arranged to prevent marking on the material to be formed. The wire comprises two layers of weft yarns interconnected by warp threads, the weft layer intended to face the material to be formed (top layer) and said warp threads being essentially tangents to the plane of the wire intended to face said material. In accordance with a special arrangement the warp threads also bind separately with the layer of weft threads (top layer) intended to face said material. The invention likewise concerns a method of producing a forming wire of the above structure.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: January 31, 1978
    Assignee: Nordiska Maskinfilt Aktiebolaget
    Inventor: Francisco Lorente Codorniu
  • Patent number: 4041989
    Abstract: A forming fabric for use in paper-making, cellulose or similar machines. The fabric comprising two layers of synthetic weft threads and synthetic warp threads. The latter interconnecting the weft thread layers but also binding separately the weft threads of the layer forming the paper making side of the fabric. The weft thread layer which forms the wear side of the fabric is tangent to a plane which is positioned outside the plane which is tangent to the warp threads interconnecting the weft layers.
    Type: Grant
    Filed: September 30, 1975
    Date of Patent: August 16, 1977
    Assignee: Nordiska Maskinfilt Aktiebolaget
    Inventors: Arne Boris Johansson, Francisco Lorente Codorniu, Ingvald Strandly