Patents by Inventor Frederick R. Smart

Frederick R. Smart 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: 4503113
    Abstract: Disclosed is a papermakers felt comprising a woven three-layered base fabric construction and a non-woven batting material. The bottom layer of the base fabric is made from coarse yarns with large diameters and the top two layers of fine yarns with smaller diameters. There are fewer yarns in the bottom layer of the base fabric than in either of the top two layers.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: March 5, 1985
    Assignee: Huyck Corporation
    Inventor: Frederick R. Smart
  • Patent number: 4382987
    Abstract: A papermaking felt having interwoven warp and filling yarns on its face side and bulky rib forming yarns on its machine side, the rib forming yarns lying in spaced apart relation to define water conveying channels therebetween, there being a batt surface on the face side of the fabric needled through the warp and filling yarns and into the rib forming yarns, the rib forming yarns being heat fused following needling to render them essentially incompressible, the rib forming yarns being initially attached to the warp yarns by holding yarns which may be removed prior to the heat fusing or retained as a permanent part of the felt.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: May 10, 1983
    Assignee: Huyck Corporation
    Inventor: Frederick R. Smart
  • Patent number: 4119753
    Abstract: A papermaking felt having interwoven warp and filling yarns on its face side and bulky rib forming yarns on its machine side, the rib forming yarns lying in spaced apart relation to define water conveying channels therebetween, there being a batt surface on the face side of the fabric needled through the warp and filling yarns and into the rib forming yarns, the rib forming yarns being impregnated following needling with a resin which renders them essentially incompressible, the rib forming yarns being initially attached to the warp yarns by holding yarns which may be removed prior to the application of the resin or retained as a permanent part of the felt.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: October 10, 1978
    Assignee: Hyyck Corporation
    Inventor: Frederick R. Smart