Patents by Inventor Bernard Ponineau

Bernard Ponineau 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).

  • Divergent fluid nozzle for drilling tool
    Patent number: 5293946
    Abstract: A drilling fluid nozzle 12 mounted in the end of an earth drilling tool 10 has a flow channel defined by a surrounding wall 16 which diverges at an angle of 30.degree. or less, such that the exiting fluid "adheres" to the wall in a laminar manner due to the Coanda effect. This configuration minimizes clogging, and implements ready unclogging.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: March 15, 1994
    Assignees: Total, Diamant Boart Stratabit
    Inventors: Alain Besson, Bernard Ponineau