Patents by Inventor Larry J. Walden

Larry J. Walden 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).

  • Molding method using a mandrel stabilizer
    Patent number: 5092950
    Abstract: A molding apparatus and method are provided for molding hollow articles. Resin impregnated fibers are passed through a mold cavity as defined by a heated die and around a mandrel which extends through the mold cavity. The mandrel is stabilized by a mandrel stabilizer fixedly positioned downstream from the inlet end of the die. The mandrel stabilizer includes a plurality of elongated members spaced around the mandrel, wherein each elongated member has an end in contact with the outer surface of the mandrel.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: March 3, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Kevin J. Spoo, Larry J. Walden, Michael D. Irvine
  • Composite article having insert
    Patent number: 4783052
    Abstract: A fiber reinforced composite article such as a valve element is provided with a reinforcing insert.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: November 8, 1988
    Assignee: Phillips Petroleum Company
    Inventor: Larry J. Walden