Patents by Inventor Jean-Claude Le Dall

Jean-Claude Le Dall 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).

  • Patent number: 5694834
    Abstract: A device for forming in series flat objects and notably thin cakes of particular shape, on any application wall, from a substance of sufficiently fluid consistency is disclosed. The device comprises a hollow feeding drum mounted rotatably on a hollow shaft, suited to be placed in contact with application surface, the surface of the feeding drum comprising at least one opening whose shape is selected in accordance with the shape to be given to each flat object. A feeding system is connected to the shaft for feeding the fluid substance into the drum comprising a radially extending spreading element for applying the fluid substance onto the application surface through the opening. The radially extending spreading element communicates with the inside of the shaft and is set radially between the shaft and the inner face of the drum wall. A guide is provided for keeping the radially extending spreading element in contact therewith.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: December 9, 1997
    Assignees: Institut Francais Du Petrole, Jean-Claude Le Dall
    Inventors: Jean-Claude Le Dall, Marcel Madec
  • Patent number: 4874328
    Abstract: The invention concerns a connection device for providing mechanical and electric connection between a multi-conductor cable and a well-probe, comprising a separation disk through which pass a plurality of pins, connected on the probe side to a female electric connector and at the opposite side to a hollow rods connected electrically to the conductors of the cable, an insulating sleeve having an end-piece for fixing the cable, inside which the connections of the rods to the conductors of the cable are made, the sleeve is fitted on the end of the probe body and is fixed thereto by a nut and a lock-nut providing, at the same time, sealed insulation between the inside of the body and the sleeve and interconnection of the electric conductors of the cable with those of the probe.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: October 17, 1989
    Assignee: Institut Francais du Petrole et Geomecanique
    Inventors: Jean-Claude Le Dall, Jean-Claude Marchand
  • Patent number: 4229142
    Abstract: A single motor 25 simultaneously drives two pump elements mounted on its shaft ends. The hydraulic circuit, the motor and the pump elements are contained within a one-piece 3-part assembly comprising a central part 2 placed between two end parts 1 and 3. It is merely necessary to change the relative orientation of one of the end parts, the movable part 1, through 180.degree. in order to couple the two pump elements in series or in parallel as required. The pumping device operates immersed.Suitable for several applications to meet domestic and light industrial requirements.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: October 21, 1980
    Assignee: Le Materiel Telephonique
    Inventors: Jean-Claude Le Dall, Jean-Claude M. Pasquet