Patents by Inventor David F. Fusselman

David F. Fusselman 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: 5135405
    Abstract: The present invention relates to electrical connectors with a ground structure for impedance and cross talk control between signal carrying conductors.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: August 4, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David F. Fusselman, Peter K. Townsend
  • Patent number: 5133679
    Abstract: This invention relates to electrical connectors with a ground structure for impedance and cross talk control between signal carrying conductors and, in particular, where the connector is a angled or right angle receptacle.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: July 28, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David F. Fusselman, Joseph A. Oswald, Jr., Peter K. Townsend
  • Patent number: 5117671
    Abstract: The present invention relates to methods and apparatus for forming features on an elongated metal wire and, in particular to making features, such as pin tips, compliant sections and retention sections on electrical terminal pins for use in interconnecting electrical leads, plated through holes in printed circuit boards and/or connector contacts.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: June 2, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Paul W. Aikens, David F. Fusselman, James D. Strong
  • Patent number: 5055069
    Abstract: This invention relates to electrical connectors with a ground structure for impedance and cross talk control between signal carrying conductors and, in particular, where the connector is a right angle or angled receptacle.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: October 8, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Peter K. Townsend, David F. Fusselman
  • Patent number: 4973258
    Abstract: A grounding clip has a bridge portion with a first and a second tine extending therefrom. The tines are subdivided by a line of demarcation into first and second portions respectively defining the parts of the tine received in respective first and second housing sections. Each tine has a protrusion on each portion thereof. The protrusions are sized so that the protrusions snugly contact the housing section in which they are received in an interference fit.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: November 27, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: David F. Fusselman
  • Patent number: 4898546
    Abstract: A ground plane shield device for retro-fit application to a connector having columns of tails with a right angle bend that is previously mounted to a board includes a generally U-shaped conducting member having a closed face and three open faces. Two of the faces have clips which are arranged in corresponding pairs and which respectively grasp and electrically interconnect the member to a first and a second portion of a tail in one of the columns that is connected to ground potential.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: February 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Richard A. Elco, David F. Fusselman
  • Patent number: 4735582
    Abstract: A positioning apparatus for locating conductor wires of a cable over mounting pads on a substrate is characterized by a base having a recess into which the conductors are introduced. The base has grooves which support the conductor wires in parallel. A portion of the conductor wires extend cantilever fashion past the forward edge thereof. A cover has an array of resilient fingers which impart a biasing force to extending wires of a multiconductor cable to urge these wires into contact with conductive mounting pads provided on a substrate as the base and cover are drawn together.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: April 5, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David F. Fusselman, Timothy A. Lemke
  • Patent number: 4723916
    Abstract: A circular pin plug and socket connector has a conductor support block with a central axial bore therethrough and with a plurality of grooves extending radially from the bore. A cable having a plurality of conductors is received through the bore, with the conductors in the cable flaring radially into an individual ones of the grooves. The grooves are arranged to receive and to orient the individual conductors of the cable along a predetermined presentment angle. Each groove has a pair of slots associated therewith. The slots are sized to receive the tines of insulation displacement contact. The slots are arranged on a circular locus centered on the axis of the bore.
    Type: Grant
    Filed: October 23, 1986
    Date of Patent: February 9, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David F. Fusselman, Timothy A. Lemke
  • Patent number: 4641902
    Abstract: A shielded connector for electrical circuits comprising a non-conducting housing containing electrically conductive terminals and an electrically conductive housing, said electrically conductive housing comprising at least two elements, each of said elements being capable of mating with the other of said elements, at least one of said elements having at least one recessed pocket having an aperture open to the exterior of said element, each of said pockets being adapted to hold a projection on a latch, the interior walls of said pocket being continuous with the exterior walls of said electrically conductive housing and either a portion of said pocket also being located in a second element or at least one wall of said pocket being contributed by a second element.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: February 10, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: David F. Fusselman
  • Patent number: 4416501
    Abstract: A terminal for establishing electrical contact with the conductive shield of a cable having an aluminized Mylar.RTM. layer surrounded by an outer braid and then a layer of insulation forming a jacket. A ferrule is inserted between the outer braid and the Mylar.RTM. and is locked in place by an insulator displacement device which penetrates the insulation jacket to establish electrical contact with the shield.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: November 22, 1983
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventors: David F. Fusselman, Timothy A. Lemke