Patents by Inventor Friedrich Postl

Friedrich Postl 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).

  • Patent number: 12281440
    Abstract: An endless-woven dryer fabric for a papermaking machine includes: a plurality of upper warp yarns; a plurality of lower warp yarns; and a plurality of weft yarns interwoven with the plurality of upper and lower warp yarns in a series of repeat units. Each weft yarn includes upper and lower portions, the upper portions interwoven with the upper warp yarns, and the lower portions interwoven with the lower warp yarns. The upper portion of each weft yarn includes a first seam loop and the lower portion of each weft yarn includes a second seam loop. The first and second seam loops of the weft yarns are interdigitated to form a seam, the seam receiving a pintle so that the fabric forms an endless loop.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: April 22, 2025
    Assignee: Huyck Licensco Inc.
    Inventors: Friedrich Postl, Klaus Haiden
  • Publication number: 20220186439
    Abstract: An endless-woven dryer fabric for a papermaking machine includes: a plurality of upper warp yarns; a plurality of lower warp yarns; and a plurality of weft yarns interwoven with the plurality of upper and lower warp yarns in a series of repeat units. Each weft yarn includes upper and lower portions, the upper portions interwoven with the upper warp yarns, and the lower portions interwoven with the lower warp yarns. The upper portion of each weft yarn includes a first seam loop and the lower portion of each weft yarn includes a second seam loop. The first and second seam loops of the weft yarns are interdigitated to form a seam, the seam receiving a pintle so that the fabric forms an endless loop.
    Type: Application
    Filed: November 22, 2021
    Publication date: June 16, 2022
    Inventors: Friedrich Postl, Klaus Haiden
  • Patent number: 10982389
    Abstract: A method of making a fabric for a press felt for a papermaking machine includes: (a) forming a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of cross machine direction (CMD) yarns and a plurality of machine direction (MD) yarns interwoven with the CMD yarns, wherein the machine direction yarns comprise a first set of MD yarns and a second set of MD yarns, comprising a plurality of repeat units, each of the repeat units comprising a plurality of cabled cross machine direction (CMD) yarns and a plurality of machine direction (MD) yarns interwoven with the CMD yarns, wherein the machine direction yarns comprise a first set of MD yarns and a second set of MD yarns, wherein the first set of MD yarns include seam loops at their ends that capture a first pintle, and wherein the second set of MD yarns include loops at their ends that capture a second pintle that is positioned above the first pintle; and (b) removing the second pintle from the ends of the second s
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: April 20, 2021
    Assignee: Huyck Licensco Inc.
    Inventors: Friedrich Postl, Klaus Haiden
  • Publication number: 20180347113
    Abstract: A method of making a fabric for a press felt for a papermaking machine includes: (a) forming a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of cross machine direction (CMD) yarns and a plurality of machine direction (MD) yarns interwoven with the CMD yarns, wherein the machine direction yarns comprise a first set of MD yarns and a second set of MD yarns, comprising a plurality of repeat units, each of the repeat units comprising a plurality of cabled cross machine direction (CMD) yarns and a plurality of machine direction (MD) yarns interwoven with the CMD yarns, wherein the machine direction yarns comprise a first set of MD yarns and a second set of MD yarns, wherein the first set of MD yarns include seam loops at their ends that capture a first pintle, and wherein the second set of MD yarns include loops at their ends that capture a second pintle that is positioned above the first pintle; and (b) removing the second pintle from the ends of the second s
    Type: Application
    Filed: May 30, 2018
    Publication date: December 6, 2018
    Inventors: Friedrich Postl, Klaus Haiden
  • Publication number: 20170037573
    Abstract: A press felt for a papermaking machine includes: (a) a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of cross machine direction (CMD) yarns and a plurality of machine direction (MD) yarns interwoven with the CMD yarns, wherein the machine direction yarns comprise a first set of MD yarns and a second set of MD yarns, wherein the first yarns include seam loops at their ends and the second yarns are devoid of seam loops at their ends; and (b) at least one batt layer overlying the base fabric.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 9, 2017
    Inventor: Friedrich Postl
  • Patent number: 9005399
    Abstract: A press felt includes: a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of exterior machine direction (MD) yarns, each of which includes an upper run and a lower run merging with seam loops at each end, a plurality of middle MD yarns positioned between the upper and lower runs of the exterior MD yarns, a plurality of cross machine direction (CMD) yarns interwoven with the exterior MD yarns and the middle MD yarns in a predetermined regular weave pattern, the seam loops defining the longitudinal ends of the press felt; and a batt layer overlying the base fabric.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: April 14, 2015
    Assignee: Huyck Licensco, Inc.
    Inventors: Hans-Peter Breuer, Friedrich Postl
  • Publication number: 20140190645
    Abstract: A press felt includes: a base fabric comprising a plurality of repeat units, each of the repeat units comprising a plurality of exterior machine direction (MD) yarns, each of which includes an upper run and a lower run merging with seam loops at each end, a plurality of middle MD yarns positioned between the upper and lower runs of the exterior MD yarns, a plurality of cross machine direction (CMD) yarns interwoven with the exterior MD yarns and the middle MD yarns in a predetermined regular weave pattern, the seam loops defining the longitudinal ends of the press felt; and a batt layer overlying the base fabric.
    Type: Application
    Filed: November 8, 2013
    Publication date: July 10, 2014
    Inventors: Hans-Peter Breuer, Friedrich Postl