Patents by Inventor Jean-Pierre Fail

Jean-Pierre Fail 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).

  • Process for optimizing the frequency spectrum of pulses emitted by an emission device comprising several seismic implosion forces
    Patent number: 4712198
    Abstract: A process is provided for optimizing the frequency spectrum of pulses emitted by implosion sources by attenuating the tripping or precursor peak preceding the main peak due to the implosion.A plurality of immersed sources are used at different depths and, by successive tripping of the sources in time defined sequence, all their implosion peaks are phased while attenuating to a very large extent the resultant of the different tripping peaks, which increases the acoustic power emitted and makes the frequency spectrum more homogeneous.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: December 8, 1987
    Assignee: Institute Francais du Petrole
    Inventor: Jean-Pierre Fail
  • Device for generating acoustic waves in a liquid medium
    Patent number: 3949831
    Abstract: A device for generating acoustic waves in a liquid, comprising two hollow enclosures communicating through a narrow passageway, a valve interposed in said passage way for controlling said communication, means for feeding a first one of said enclosures, in free communication with the ambient liquid, with pressurized fluid and suction means for reducing the pressure in the second enclosure to a level considerably lower than that prevailing in the first one.
    Type: Grant
    Filed: April 29, 1974
    Date of Patent: April 13, 1976
    Assignee: Institut Francaise de Petrole, des Carburants et Lubrifiants
    Inventors: Jean Cassand, Jean-Pierre Fail