Patents by Inventor William D. Aldrich

William D. Aldrich 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: 7901530
    Abstract: A method of manufacturing a fabric seam in a fabric for use as papermachine clothing, the fabric having loops at each of the fabric's transverse ends adapted for interconnection by way of a pintle to make the fabric endless, including the steps of bringing the ends into end-to-end disposition in order to interdigitate the loops, inserting a pintle in the interdigitated loops, heat setting to fix base yarns and the loops of the fabric in place, inserting at least one stuffer yarn, at least a part of which includes a low melt component, into selected void areas in the loops adjacent the pintle, adhering at least one batt layer to the seam by needling, and further heat setting to at least partially melt the stuffer yarn such that it deforms to substantially take on the shape of the void areas at the pintle joint, to bind fibers of the batt needled into the void areas and to bind adjacent yarns of the fabric.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: March 8, 2011
    Assignee: Voith Fabrics Patent GmbH
    Inventor: William D. Aldrich
  • Publication number: 20090151861
    Abstract: A method of manufacturing a fabric seam in a fabric for use as papermachine clothing, the fabric having loops at each of the fabric's transverse ends adapted for interconnection by way of a pintle to make the fabric endless, including the steps of bringing the ends into end-to-end disposition in order to interdigitate the loops, inserting a pintle in the interdigitated loops, heat setting to fix base yarns and the loops of the fabric in place, inserting at least one stuffer yarn, at least a part of which includes a low melt component, into selected void areas in the loops adjacent the pintle, adhering at least one batt layer to the seam by needling, and further heat setting to at least partially melt the stuffer yarn such that it deforms to substantially take on the shape of the void areas at the pintle joint, to bind fibers of the batt needled into the void areas and to bind adjacent yarns of the fabric.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 18, 2009
    Inventor: William D. Aldrich
  • Patent number: 7089968
    Abstract: Paper making machine fabric comprising weft yarns extending in the machine direction (MD) and forming seaming loops at each end of the fabric, cross machine direction (CD) warp yarns being interwoven with the weft yarns, wherein that at least one multifilament warp yarn is inserted so that there is at least one standard warp yarn between the multifilament yarn and the seaming loops on each side of the seam.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: August 15, 2006
    Assignee: Voith Fabrics GmbH & Co.
    Inventor: William D. Aldrich
  • Publication number: 20040216798
    Abstract: Paper making machine fabric comprising weft yarns extending in the machine direction (MD) and forming seaming loops at each end of the fabric, cross machine direction (CD) warp yarns being interwoven with the weft yarns, wherein that at least one multifilament warp yarn is inserted so that there is at least one standard warp yarn between the multifilament yarn and the seaming loops on each side of the seam.
    Type: Application
    Filed: April 30, 2004
    Publication date: November 4, 2004
    Inventor: William D. Aldrich