Patents by Inventor James G. Dunbar

James G. Dunbar 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: 5221216
    Abstract: An electrical connector 1 comprising: a conductive contact 6 connected to a circuit board mounting terminal 17, an insulative body 3 surrounding the contact 6, a conductive shell 2 surrounding the insulative body 3, a base 11 surrounding the shell 2, conductive circuit board mounting posts 13 on the base 11, the shell 2 being insulated from the base 11, electrical capacitor elements 26 between the base 11 and a conductive platform 31, and circuit board engaging terminals 34 extending from the platform 31.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: June 22, 1993
    Assignee: AMP Incorporated
    Inventors: Andrew J. Gabany, James G. Dunbar
  • Patent number: 5192230
    Abstract: An electrical connector 1 comprising: a conductive contact 6 connected to a circuit board mounting terminal 17, an insulative body 3 surrounding the contact 6, a conductive shell 2 surrounding the insulative body 3, a base 11 surrounding the shell 2, conductive circuit board mounting posts 13 on the base 11, the shell 2 being insulated from the base 11, and an electrical capacitor comprised of a dielectric element 26 between the shell 2 and the base 11.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: March 9, 1993
    Assignee: AMP Incorporated
    Inventors: Andrew J. Gabany, James G. Dunbar
  • Patent number: 5073123
    Abstract: Ends of electrical cable are joined to corresponding self terminating, shielded connectors 1, each comprising, a conductive shell 2, a dielectric support 11 in the shell 2, a conductive switch contact 5, an electrical terminal 16 intimately connected to electrical equipment with the switch contact 5 carried by the dielectric support 11 for disconnect connection to an electrical contact inserted into the shielded connector 1, and an electrical circuit element 6 in contact with the shell 2 constructed for disconnect coupling with the switch contact 5 upon withdrawal of the electrical contact from the shielded connector 1, whereby the switch contact 5 is terminated electrically to the shell 2 through the circuit element 6.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: December 17, 1991
    Assignee: AMP Incorporated
    Inventors: Norman R. Birch, James G. Dunbar, Harold W. Kerlin, Wilmer L. Sheesley, Edward C. Vees
  • Patent number: 5030122
    Abstract: Ends of electrical conductors 5 of an electrical cable are joined to corresponding self terminating, shielded connectors 4, each comprising, a conductive shell 20 connected to at least one corresponding sheath 8, a dielectric support 29 in the shell 20, a conductive switch contact 23 connected to a corresponding signal transmitting conductor 5 and carried by the dielectric support 29 for disconnect connection to an electrical contact inserted into the shielded connector 4, and an electrical circuit element 24 in contact with the shell 20 constructed for disconnect coupling with the switch contact 23 upon withdrawal of the electrical contact from the shielded connector 4, whereby the switch contact 23 is terminated electrically to the shell 20 through the circuit element 24.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: July 9, 1991
    Assignee: AMP Incorporated
    Inventors: Norman R. Birch, James G. Dunbar, Harold W. Kerlin, Wilmer L. Sheesley, Edward C. Vees