Patents by Inventor Wouter De Waal

Wouter De Waal 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).

  • Method And Apparatus For Detecting A Crack In A Pipeline From Inside The Pipeline With Ultrasound
    Publication number: 20080236287
    Abstract: A method for detecting a crack in a pipeline from an inside of the pipeline, wherein, with the aid of at least one ultrasonic transmitter in the pipeline, successively ultrasonic pulses are transmitted in a direction of an inner wall of the pipeline and wherein, with the aid of at least one ultrasonic receiver in the pipeline, reflections of the ultrasonic pulses on the pipeline are received. The ultrasonic transmitter and the ultrasonic receiver are mutually separated at a distance from each other, wherein the ultrasonic transmitter and the ultrasonic receiver are moved together along the inner wall in tangential direction of the pipeline and at a distance from the inner wall for scanning the pipeline. The pipeline is filled with a liquid such as water for obtaining an immersion between the ultrasonic transmitter, the ultrasonic receiver and the inner wall of the pipeline.
    Type: Application
    Filed: July 1, 2005
    Publication date: October 2, 2008
    Applicant: RÖNTGEN TECHNISCHE DIENST B.V.
    Inventors: Robert Van Agthoven, Bernard Spree, Wouter De Waal