Patents by Inventor Alain Guyonnet

Alain Guyonnet 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).

  • Method for unclogging a pipe carrying dangerous substances
    Patent number: 5198037
    Abstract: So as to unclog a pipe (16) carrying dangerous and accessible substrances after the removal of a movable member (24, 26), this member is replaced by a guiding member (42), a hydraulic shuttle (66) then being introduced into this guiding member, this shuttle being connected to a high pressure hydraulic source (70) through a box (56) equipped with means for washing the shuttle at the time the latter is withdrawn and means for recovering effluent. The shuttle is then conditioned in a winder connected directly on the box (56).
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: March 30, 1993
    Assignee: Cogema-Compagnie Generale des Matieres Nucleaires
    Inventors: Alain Guyonnet, Eric Lestournel