Patents by Inventor Pietro Capula

Pietro Capula 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).

  • Pressure-sensitive signalling device for detecting intrusion into an enclosed area
    Patent number: 4270122
    Abstract: A signalling apparatus with pressure sensors, in particular for sensing intrusion into a closed surface area, with a yielding pipe embedded underground along the periphery of the surface area and filled with fluid; the pipe being divided into two separate sections by a deformable baffle plate to which are connected sensor means for supplying a signal depending on the deformation of said baffle plate, for initiating signalling means when said baffle plate is deformed.
    Type: Grant
    Filed: July 31, 1979
    Date of Patent: May 26, 1981
    Inventor: Pietro Capula