Patents Represented by Law Firm Cargill and Associates
  • Apparatus for heating substrate having electrically-conductive and non-electrically-conductive portions
    Patent number: 5438181
    Abstract: An apparatus includes (a) a device which is capable of selectively generating heat in electrically-conductive material without substantially generating heat in non-electrically-conductive material, (b) a device capable of heating non-electrically-conductive material, and (c) an insulating shield between the two devices to help focus the energy generated by at least one of the devices.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: August 1, 1995
    Assignee: Essex Specialty Products, Inc.
    Inventors: Curtis L. Volkmann, Frederick A. Buck