Patents by Inventor Darren W. Martindill

Darren W. Martindill 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).

  • Method to straighten cross linked polyethylene high voltage power cable
    Patent number: 5213750
    Abstract: A method for forming cable which is insulated with a rigid insulating layer into a desired shape, comprising the steps of wrapping the a portion of the cable with a heater tape that houses heater elements, causing the elements to become hot and heat the cable portion so that its insulating layer is heated and loses its molecular memory of its prior configuration, and reconfiguring the cable portion into the desired shape.
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: May 25, 1993
    Assignee: Cooper Power Systems, Inc.
    Inventors: Todd K. Knapp, Darren W. Martindill, Paul M. Roscizewski