Patents by Inventor Siemen Roelof Van der Heide

Siemen Roelof Van der Heide has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for the internal inspection of pipes and tubes and the like
    Patent number: 6978690
    Abstract: An apparatus for the internal inspection of pipes and tubes or the like, comprising an ultrasonic measuring head and a cable coupled to the measuring head, which cable can be coupled outside the pipe or tube to be measured to a device processing the measuring data, the apparatus being provided at its distal end but behind the measuring head, with a reel for winding the cable on and off.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: December 27, 2005
    Assignee: A. Hak Industrial Services B.V.
    Inventors: Siemen Roelof Van der Heide, Leonardus Johannes Gruitroij, Joost Martinus Hermanus Parent, Christiaan Willem Schomper
  • Ultrasonic measuring instrument
    Patent number: 6295872
    Abstract: The invention relates to an ultrasonic measuring instrument comprising a housing which contains a transducer for transmitting and receiving ultra-sound waves, and a rotatable mirror placed inside the housing for directing ultra-sound waves coming from the transducer through a tapering window comprised in the housing to an object of measuring outside the housing, and for directing ultra-sound waves which are reflected by the object of measuring and which enter the housing through the window to the transducer. Around, and rotating with the mirror a tube is provided, comprising a recess for the passage of ultra-sound waves.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: October 2, 2001
    Assignee: A Hak Industrial Services B.V.
    Inventor: Siemen Roelof Van Der Heide