Patents by Inventor Nick Calandrello

Nick Calandrello 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).

  • Touchpad keyboard
    Patent number: 4439647
    Abstract: An improved capacitive keyboard uses a standard printed circuit board provided in various locations with spaced conductor pairs. A conductive disc with a flat insulated lower surface is aligned above each conductor pair. All of the discs are suspended above the printed circuit board within apertures of a web of polymer foam material and held in position by a sheet of adhesive covered plastic that covers and adheres to the entire upper surface of the web and each of the discs.
    Type: Grant
    Filed: July 14, 1982
    Date of Patent: March 27, 1984
    Inventors: Nick Calandrello, Robert Dimodana, Louis Skarbek, Don Gove, Edwin Cooper, John McKenzie