Patents by Inventor Sebastien Reboul

Sebastien Reboul 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).

  • Fixed cutter drill bit having core receptacle with concave core cutter
    Patent number: 10329843
    Abstract: A drill bit includes a shank having a threaded coupling formed at an upper end thereof; a bit body mounted to a lower end of the shank and having a plenum; a gage section forming an outer portion of the drill bit; a cutting face forming a lower end of the drill bit and including: a core receptacle formed at a center of the cutting face, operable to receive a core of earth, and including: a concave core cutter mounted to a bottom of the bit body; and a core port extending from the plenum through the bottom of the bit body and operable to discharge drilling fluid onto the core and core cutter; a plurality of blades protruding from a bottom of the bit body and extending from a periphery of the core receptacle to the gage section; and a plurality of leading cutters mounted along each blade.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: June 25, 2019
    Assignee: VAREL EUROPE S.A.S.
    Inventors: Sebastien Reboul, Bruno Cuillier De Maindreville, Alfazazi Dourfaye, Gilles Gallego
  • FIXED CUTTER DRILL BIT HAVING CORE RECEPTACLE WITH CONCAVE CORE CUTTER
    Publication number: 20170335630
    Abstract: A drill bit includes a shank having a threaded coupling formed at an upper end thereof; a bit body mounted to a lower end of the shank and having a plenum; a gage section forming an outer portion of the drill bit; a cutting face forming a lower end of the drill bit and including: a core receptacle formed at a center of the cutting face, operable to receive a core of earth, and including: a concave core cutter mounted to a bottom of the bit body; and a core port extending from the plenum through the bottom of the bit body and operable to discharge drilling fluid onto the core and core cutter; a plurality of blades protruding from a bottom of the bit body and extending from a periphery of the core receptacle to the gage section; and a plurality of leading cutters mounted along each blade.
    Type: Application
    Filed: May 3, 2017
    Publication date: November 23, 2017
    Inventors: Sebastien Reboul, Bruno Cuillier De Maindreville, Alfazazi Dourfaye, Gilles Gallego