Patents by Inventor Frank J. Fillwalk

Frank J. Fillwalk 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: 4392861
    Abstract: A delaminatable two-ply diaper facing material is provided in which an outer ply, or layer, is made of irregularly arranged, intersecting, overlapping, mechanically interengaged, loosely assembled natural wood pulp fibers and an inner ply, or layer, contains similarly disposed natural wood pulp fibers and thermoplastic synthetic wood pulp fibers having a melting point lower than that of other fibers in the layer, the latter being in contact with and heat fused with other fibers to provide structural integrity to the inner layer, with fibers in both layers being bonded to each other by a water soluble adhesive binder.The material is prepared by bringing together the aforementioned layers, applying heat in the absence of pressure to fuse the thermoplastic synthetic wood pulp fibers in the inner layer to each other and to other fibers, introducing a water soluble adhesive binder into the two layers and then drying and curing the binder.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: July 12, 1983
    Assignee: Johnson & Johnson Baby Products Company
    Inventors: George A. M. Butterworth, Frank J. Fillwalk