Patents by Inventor Cornelus Van T'Hul

Cornelus Van T'Hul 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).

  • Publication number: 20050067608
    Abstract: A cable is installed in a protective duct or guide tube by means of blowing (and, optionally, synergetic pushing) and lubricating the cable during installation. Lubricating the cable is done after the cable exits from the cable blowing equipment and hence takes place in a pressurized airflow passage. A hollow chamber filled with foam-plugs saturated with lubricant forms the cable lubricator. Lubricant is wiped onto the cable as it moves through the pressurized lubrication compartment. A portion of the airflow used for propelling the cable during blowing installation is bypassed around the lubricator and injected into the duct trajectory downstream of the lubricator.
    Type: Application
    Filed: November 17, 2004
    Publication date: March 31, 2005
    Applicant: NKF KABEL, B.V.
    Inventors: Willem Griffioen, Maja Keijzer, Cornelus Van T'Hul, Willem Greven
  • Patent number: 6848541
    Abstract: A cable is installed in a guide tube by means of blowing (and, optionally, synergetic pushing) and lubricating the cable during this installation. Lubricating the cable is done after the cable has passed the cable blowing equipment and hence takes place in a pressurized airflow passage. A hollow chamber filled with foam-plugs saturated with lubricant forms the cable lubricator. To avoid buckling, cable guide blocks are placed, which also divide the lubricator in different sub-chambers, each with its own foam-plug and content of lubricant. The airflow, needed to propel the cable during blowing, can bypass the lubricator.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: February 1, 2005
    Assignee: NKF Kabel B.V.
    Inventors: Willem Griffioen, Maja Keijzer, Cornelus Van T'Hul, Willem Greven