Patents by Inventor Christian H. Pech

Christian H. Pech 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).

  • Reservoir for storing hydrocarbon liquids and process for fabricating the same
    Patent number: 3943721
    Abstract: A reservoir for hydrocarbon liquids is formed by a hollow in the ground lined with a gas-tight sheet and covered by a roof floating on the liquid in the hollow, the roof comprising a non-metallic rigid body which is gas-tight and of low density, a meter cube of the body weighing between 15 kgs and 100 kgs, a layer of earth or the like covering the surface of the body, and auxilliary gas-tight means connecting the circumference of the roof body to the circumference of the hollow.
    Type: Grant
    Filed: July 19, 1974
    Date of Patent: March 16, 1976
    Assignee: Campagnie Francaise des Petroles, Societe Anonyme
    Inventors: Jean-Paul Azalbert, Adrien Giraud, Claude J. Tassin, Christian H. Pech
  • Method and apparatus for moulding protective tubing simultaneously with bore hole drilling
    Patent number: 3935910
    Abstract: In a method of drilling a bore-hole, the bore-hole is protected against caving in as the drilling proceeds by the simultaneous moulding of a tubing on the bore-hole wall immediately above the drill tool. Preferably a sleeve is first moulded onto the bore-hole wall and the tubing is moulded onto the sleeve.
    Type: Grant
    Filed: June 25, 1974
    Date of Patent: February 3, 1976
    Assignee: Compagnie Francaise des Petroles
    Inventors: Claude Francois Gaudy, Adrien Giraud, Claude J. Tassin, Christian H. Pech