Patents by Inventor Hubert Perrier

Hubert Perrier 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 and device for placing a construction material in a liquid environment
    Patent number: 4674917
    Abstract: A continuous linear element is used in the form of a fine fibrous trap, delivered in a continuous manner by an ejector (11) placed in a gaseous atmosphere established in an open-bottomed bell (8) immersed in the liquid medium with its open bottom close to the deposition site of the construction material. A slurry of solid particles is injected into the fibrous trap when it is still in the gaseous atmosphere of the bell and the trap charged with said particles is then deposited on the construction site (1). The ejector (11) can be part of a device (12) for breaking up textile cable (17) and is connected with a floating platform (3).
    Type: Grant
    Filed: July 24, 1985
    Date of Patent: June 23, 1987
    Assignee: Laboratoire Central des Ponts et Chaussees
    Inventors: Hubert Perrier, Didier Faucon