Patents by Inventor William F. Trask

William F. Trask 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: 4662037
    Abstract: An apparatus for ultrasonically providing selvedge on separable fasteners of the hook and loop-type. Portions of the separable fastener member are ultrasonically softened or melted and pressed toward the surface of the base member so as to be combined, or in some instances, consolidated therewith. The portions may be given a textured appearance by use of a textured anvil having either a simulated selvedge surface or even a trademark or logo impressed, machined or etched thereon. The tape may be provided with several selvedge portions and then slit medially of the portions to provide at least two separable fasteners of smaller width from a separable fastener of wider width.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: May 5, 1987
    Assignee: Actief, N.V.
    Inventors: George A. Provost, William F. Trask, Gerald F. Rocha