Patents Assigned to Harold Sponseller and Associates, Inc.
  • Apparatus and method for testing tube welds
    Patent number: 4425802
    Abstract: This invention relates to apparatus and method for testing tube welds, and more specifically the seams or joints of tubular metal pipe which may be tested rapidly and efficiently under mechanical load conditions which are applied stepwise.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: January 17, 1984
    Assignee: Harold Sponseller and Associates, Inc.
    Inventor: Harold P. Sponseller