Patents by Inventor H. Thomas Sanders

H. Thomas Sanders 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).

  • Papermakers wet press felt with high contact, resilient base fabric
    Patent number: 6179965
    Abstract: Hollow synthetic monofilament yarns are used in the construction of a base fabric for a papermakers wet felt. The synthetic hollow monofilament yarns have selected interior void, compressibility and resiliency characteristics and are interwoven with other yarns to form a woven base fabric with the hollow monofilament yarns predominating, on at least the paper carrying side of the base fabric. The weaving and finishing of the base fabric results in the hollow monofilament yarns retaining a substantially unflattened cross-section. Accordingly, substantially unflattened portions of the hollow monofilament yarns predominate the paper carrying side of the base fabric thereby providing a cushioning surface which is compressibly resilient to assist in the dewatering of the aqueous paper web as it is transported through a press nip during the manufacture of the paper.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: January 30, 2001
    Assignee: AstenJohnson, Inc.
    Inventors: Francis J. Cunnane, III, H. Thomas Sanders
  • Papermakers wet press felt having high contact, resilient base fabric with hollow monofilaments
    Patent number: 5368696
    Abstract: Hollow synthetic monofilament yarns are used in the construction of a base fabric for a papermakers wet felt. The synthetic hollow monofilament yarns have selected interior void, compressibility and resiliency characteristics and are interwoven with other yarns to form a woven base fabric with the hollow monofilament yarns predominating, on at least the paper carrying side of the base fabric. The weaving and finishing of the base fabric results in the hollow monofilament yarns retaining a substantially unflattened cross-section. Accordingly, substantially unflattened portions of the hollow monofilament yarns predominate the paper carrying side of the base fabric thereby providing a cushioning surface which is compressibly resilient to assist in the dewatering of the aqueous paper web as it is transported through a press nip during the manufacture of the paper.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: November 29, 1994
    Assignee: Asten Group, Inc.
    Inventors: Francis J. Cunnane, III, H. Thomas Sanders