Patents Assigned to Plasma Materials, Inc.
  • Plasma jet torch having gas vortex in its nozzle for arc constriction
    Patent number: 4570048
    Abstract: An electric arc or plasma jet torch or heater has water-cooled electrode structures and a working gas injection arrangement which produce efficiently a very stable arc of maximum length at operating currents ranging from 20 amps to more than 400 amps so that the same torch can be used to satisfy a wide range of heating requirements.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: February 11, 1986
    Assignee: Plasma Materials, Inc.
    Inventor: John W. Poole