Patents by Inventor Sven Gwildies

Sven Gwildies 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).

  • Device for nondestructive testing of pipes
    Patent number: 8344725
    Abstract: A device for nondestructive testing of a pipe made of ferromagnetic steel for detection of longitudinal, transverse or inclined flaws using magnetic or magnetic-induction test procedures is disclosed. The device includes a magnetizing yoke which transmits the magnetic flux contactless into the pipe and at least two magnetic-field-sensitive scanning probes having GMR sensors. The GMR sensors are combined into sensor groups in form of a sensor array and electrically connected in parallel. A single preamplifier connected to each sensor group in one-to-one correspondence. The device further includes an evaluation unit.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: January 1, 2013
    Assignee: V & M Deutschland GmbH
    Inventors: Gert Fischer, Sven Gwildies, Michael Kaack, Alfred Graff, Ashraf Koka, Stefan Nitsche
  • DEVICE FOR NONDESTRUCTIVE TESTING OF PIPES
    Publication number: 20100219818
    Abstract: A device for nondestructive testing of a pipe made of ferromagnetic steel for detection of longitudinal, transverse or inclined flaws using magnetic or magnetic-induction test procedures is disclosed. The device includes a magnetizing yoke which transmits the magnetic flux contactless into the pipe and at least two magnetic-field-sensitive scanning probes having GMR sensors. The GMR sensors are combined into sensor groups in form of a sensor array and electrically connected in parallel. A single preamplifier connected to each sensor group in one-to-one correspondence. The device further includes an evaluation unit.
    Type: Application
    Filed: February 24, 2010
    Publication date: September 2, 2010
    Applicant: V & M DEUTSCHLAND GMBH
    Inventors: GERT FISCHER, Sven Gwildies, Michael Kaack, Alfred Graff, Ashraf Koka, Stefan Nitsche