Patents Assigned to Desert Glassworks, Inc.
  • Quartz tank member and method of production thereof
    Patent number: 5322539
    Abstract: A quartz tank member produced by a new method of production having continuous inner corner surfaces formed through bending and welding processes with welded seams being smooth without any hills, valleys, pits, crevasses, or irregularities therein.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: June 21, 1994
    Assignee: Desert Glassworks, Inc.
    Inventors: Melvin P. Mathisen, David L. Butler, Jeffrey F. White