Patents Assigned to Sperry Rail Service, Inc.
  • Compact ultrasonic calibration block
    Patent number: 5837880
    Abstract: An ultrasonic test standard is formed by a metal block having a unique shape incorporating an arcuate surface and a series of reflectors that enable discreet instrument measurement verifications in a relatively small area. This calibration block, though relatively small and light in weight, will perform all of the functions of a standard IIW (International Institute of Welding) type block and additional functions.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: November 17, 1998
    Assignee: Sperry Rail Service, Inc.
    Inventors: Michael L. Shakinovsky, Robert E. Lucas