Patents by Inventor Bernard Kerrest

Bernard Kerrest 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).

  • Hydrodynamic trawl opening device
    Patent number: 5201137
    Abstract: A hydrodynamic trawl opening device is disclosed consisting of a structure 11) with at least two flexible superimposed wings (12, 13), joined together by a plurality of flexible dividing walls (14) which are transverse with respect to said wings. Fixing means (15a, 15b) are further provided for rigging it to the trawl, close to the opening, so that the wings are incident with respect to the flow direction and so that said dividing walls are oriented in the flow direction.Besides its excellent lift performances at normal trawling speeds, the device of the invention is very easy to rig and has negligible space requirement.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: April 13, 1993
    Assignee: Institut Francais de Research pour l'Exploitation de la Mer
    Inventors: Francois Theret, Herve Guigo, Bernard Kerrest