Patents by Inventor Kevn J. Allen

Kevn J. Allen 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).

  • Plastic sealing of solenoid bobbins
    Patent number: 7532100
    Abstract: A method and apparatus for overmolding a plastic shroud onto a bobbin including the step of providing a protrusion ring on the surface of the bobbin surrounding each standoff between the bobbin and a mold wall and extending outwards from the surface of the bobbin. A plurality of standoffs and protrusion rings is presently preferred. The protrusion rings are small relative to the standoffs, have low thermal mass, and thus are readily melted by the injected molten plastic, causing interstitching between the bobbin material and the overmolding material. The interstitching creates a highly effective hermetic seal against moisture leakage along the surface of the bobbin away from the standoff site. Perfect melting of the standoffs is no longer required, and standoffs can be designed to assure proper positioning of the bobbin during the complete overmolding process.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: May 12, 2009
    Assignee: Delphi Technologies, Inc.
    Inventors: James P. Henry, Gary J. DeAngelis, Kevn J. Allen, Peter R. Wendt
  • Plastic sealing of solenoid bobbins
    Patent number: 7187262
    Abstract: A method and apparatus for overmolding a plastic shroud onto a bobbin including the step of providing a protrusion ring on the surface of the bobbin surrounding each standoff between the bobbin and a mold wall and extending outwards from the surface of the bobbin. A plurality of standoffs and protrusion rings is presently preferred. The protrusion rings are small relative to the standoffs, have low thermal mass, and thus are readily melted by the injected molten plastic, causing interstitching between the bobbin material and the overmolding material. The interstitching creates a highly effective hermetic seal against moisture leakage along the surface of the bobbin away from the standoff site. Perfect melting of the standoffs is no longer required, and standoffs can be designed to assure proper positioning of the bobbin during the complete overmolding process.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: March 6, 2007
    Assignee: Delphi Technologies, Inc.
    Inventors: James P. Henry, Gary J. DeAngelis, Kevn J. Allen, Peter R. Wendt