Patents Assigned to Piezo Switch Development Inc.
  • Patent number: 6064141
    Abstract: A piezoelectric switch comprises a housing having an inner surface and an outer surface. A piezoelectric element is mounted on the inner surface of the housing. The piezoelectric element has a top layer made of piezo crystal and a bottom layer made of a conductive metal such as brass. A printed circuit board is disposed within the housing for controlling the state of the switch. The printed circuit board is electrically connected to the piezoelectric element by an electrical conductor. In one embodiment, the electrical conductor is in the form of a flex circuit which has a positive terminal, a negative terminal and a printed circuit board overlay portion that is affixed to the printed circuit board. The flex circuit sandwiches the piezoelectric element therewithin so that the positive terminal contacts the top layer and the negative terminal contacts the bottom layer.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: May 16, 2000
    Assignee: Piezo Switch Development Inc.
    Inventor: Richard D. Wiciel