Patents by Inventor Barry Jennis

Barry Jennis 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).

  • Ignitron with arc-centering magnetic field
    Patent number: 4833363
    Abstract: An ignitron device is provided in which a permanent annular magnet at least partly surrounds the region between the ignitron anode and the surface of a mercury pool connected to the cathode terminal, the magnet being effective to create an axial magnetic field in the aforementioned region which tends to constrain the discharge arc of the device towards the center of the pool and away from the envelope walls of the device.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: May 23, 1989
    Assignee: English Electric Valve Company Limited
    Inventor: Barry Jennis