Patents by Inventor Robert A. Schofield

Robert A. Schofield 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).

  • Polypropylene core composite structural member
    Publication number: 20020106503
    Abstract: Core for a composite structural member comprises rigid, extruded, closed-cell polypropylene foam in which the surfaces are skived to provide adhesive bonding to structural skin layers. Panel made from core in accordance with the invention has shear strength of from about 60 to 200 psi at a density of 3 to 8 pcf and is suitable for use in marine craft, vehicles, and in building construction. The core is kerfed or “kiss cut” prior to application of adhesive for use in forming curved surfaces without a scrim layer.
    Type: Application
    Filed: February 2, 2001
    Publication date: August 8, 2002
    Applicant: Sealed Air Corporation (U.S.)
    Inventors: Russell Allen Monk, Robert A. Schofield, Shau-Tarng Lee
  • Boom for sprayer
    Patent number: D410656
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: June 8, 1999
    Assignee: AGCO Corporation
    Inventors: Michael M. Thyberg, Oryn B. Wagner, Robert A. Schofield, Gary F. Langer