Patents by Inventor Siegfried A. De Jong

Siegfried A. De Jong 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).

  • Connector with internal electrical connections to be made optionally
    Patent number: 4720267
    Abstract: A connector comprising at least two groups of electrically conducting elements extending outside of said connector, wherein for a first group, each element comprises a pin and for a second group, each element comprises a sleeve, the elements being separated by a distance from each other and being fixed to a fixing piece in a cavity formed by a base part and a closure part, and the elements being connected to conductor tracks of a printed wiring card provided in the cavity at the fixing piece. Conductors of a cable extending into the cavity are connected to the conductor tracks. Dependent on the arrangement of the conductor tracks on the card, strings of geophones, or other electrical devices, may be electrically connected in series or in parallel.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: January 19, 1988
    Inventor: Siegfried A. De Jong
  • Electrical connector
    Patent number: D298313
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: November 1, 1988
    Assignee: Sensor Nederland B.V.
    Inventor: Siegfried A. De Jong