Patents by Inventor George Edward Zenk

George Edward Zenk 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).

  • Membrane-type touch panel
    Patent number: 4085302
    Abstract: A location sensitive touch panel for use on a rigid substrate. The substrate carries a first set of conductive strips. A resilient plastic membrane overlaying it carries a second set of conductive strips orthogonal to and spaced from the first set. Finger pressure can cause electrical contact between any one of the first set of strips and any one of the second set of strips. The substrate may be either flat or curved, with the membrane conforming to its contour.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: April 18, 1978
    Assignee: Control Data Corporation
    Inventors: George Edward Zenk, Robert Joseph Johnson, Charles Newell Miller
  • Vented membrane-type touch panel
    Patent number: 4066855
    Abstract: A location sensitive touch panel for use on a rigid substrate. The substrate carries a first set of conductive strips. A resilient plastic membrane overlaying it carries a second set of conductive strips orthogonal to and spaced from the first set. Finger pressure can cause electrical contact between any one of the first set of strips and any one of the second set of strips. The substrate may be either flat or curved, with the membrane conforming to its contour. A vent in the membrane allows the membrane to assume its natural shape more quickly by allowing air to flow between the substrate and the membrane.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: January 3, 1978
    Assignee: Control Data Corporation
    Inventor: George Edward Zenk
  • Membrane type touch panel employing piezoresistant anti-short means
    Patent number: 4066853
    Abstract: A location sensitive touch panel for use on a rigid substrate. The substrate carries a first set of conductive strips. A resilient plastic membrane overlaying it carries a second set of conductive strips orthogonal to and spaced from the first set. Finger pressure can cause electrical contact between any one of the first set of strips and any one of the second set of strips. The substrate may be either flat or curved, with the membrane conforming to its contour.A piezoresistant coating is interposed between the sets of conductive strips and may be disposed on either or both sets if strips.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: January 3, 1978
    Assignee: Control Data Corporation
    Inventor: George Edward Zenk
  • Membrane-type touch panel employing a photo-resist insulating grid anti-short means
    Patent number: 4066852
    Abstract: A location sensitive touch panel for use on a rigid substrate. The substrate carries a first set of conductive strips. A resilient plastic membrane overlaying it carries a second set of conductive strips orthogonal to and spaced from the first set. Finger pressure can cause electrical contact between any one of the first set of strips and any one of the second set of strips. The substrate may be either flat or curved, with the membrane conforming to its contour.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: January 3, 1978
    Assignee: Control Data Corporation
    Inventor: George Edward Zenk
  • Membrane-type touch panel employing insulating grid anti-short means
    Patent number: 4066854
    Abstract: A location sensitive touch panel for use on a rigid substrate. The substrate carries a first set of conductive strips. A resilient plastic membrane overlaying it carries a second set of conductive strips orthogonal to and spaced from the first set. Finger pressure can cause electrical contact between any one of the first set of strips and any one of the second set of strips. The substrate may be either flat or curved, with the membrane conforming to its contour.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: January 3, 1978
    Assignee: Control Data Corporation
    Inventors: George Edward Zenk, Richard Joseph Ditzik