Patents by Inventor Marc Derdeyn

Marc Derdeyn 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).

  • Guiding bow
    Patent number: 5509260
    Abstract: A guiding bow (1) for an elongated element (3) in a twisting or winding apparatus. At least part of the length of the guiding bow (1) has a transversal cross-section which is streamlined. The core (5) of the guiding bow may be made of a load carrying material, the sheath (7) of a synthetic material.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: April 23, 1996
    Assignee: N.V. Bekaert S.A.
    Inventor: Marc Derdeyn
  • Double-twisting device with magnetic device for elevating axial forces
    Patent number: 5341631
    Abstract: A double-twisting device (2) includes two half-shafts (4) and at least one flyer (6). The flyer (6) connects the two half-shafts (4) and causes axial forces F.sub.a which are exerted upon the half shafts (4) during rotation. The double-twisting device (2) further includes a magnetic device (22, 24) which are suited to compensate at least partially for the axial forces F.sub.a. This increases the life span of the bearings (8) and considerably reduces the maintenance costs of the double-twisting device.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: August 30, 1994
    Assignee: N. V. Bekaert S.A.
    Inventors: Peter Boesman, Marc Derdeyn