Patents Assigned to Magnaflux Pipeline Services, Inc.
  • Pipeline inspection device using ultrasonic apparatus for corrosion pit detection
    Patent number: 4641529
    Abstract: A pipeline inspection apparatus is disclosed for the detection of corrosion pit type defects, employing one or more ultrasonic transducers to produce a parallel beam for direction toward the pipe wall from inside a pipe, with a sufficiently large beam width to permit comparison of time displayed signal components in defect depth determination, with the signal propagating through a gaseous medium. An additional embodiment combines the same with photographic apparatus.
    Type: Grant
    Filed: April 12, 1984
    Date of Patent: February 10, 1987
    Assignee: Magnaflux Pipeline Services, Inc.
    Inventors: Donald E. Lorenzi, Helmut F. Wagerer, Lev Spevak
  • Corrosion sensor device including side-by-side bar magnets surrounded by a coil
    Patent number: 4598250
    Abstract: A corrosion probe is disclosed which includes two permanent bar magnets in side-by-side relation, with opposite magnetic orientation and with poles of opposite polarity adjacent a sensing end of the probe, a sensing coil being disposed around the magnets adjacent the sensing end. The probe is disclosed in use in a pipe inspection pig for controlling operation of a camera.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: July 1, 1986
    Assignee: Magnaflux Pipeline Services, Inc.
    Inventors: Donald E. Lorenzi, Helmut F. Wagerer