Patents by Inventor Peter Helliker

Peter Helliker 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 sensor
    Publication number: 20030154797
    Abstract: A resistance welding apparatus comprises a piston having opposing faces for applying welding electrodes to a workpiece, means for measuring a pressure ratio across opposing faces of the piston and means for controlling the supply of welding current to the electrodes in dependence on the pressure ratio. A method of resistance welding and a pressure sensor for use in the resistance welding apparatus are also provided.
    Type: Application
    Filed: October 11, 2002
    Publication date: August 21, 2003
    Inventors: Peter Helliker, Olivier Tiberghein