Patents by Inventor Alain Courtois

Alain Courtois 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: 6257939
    Abstract: An insert for the binding of an electric connector terminal to a thin wall, and the methods for mounting and dismounting same.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: July 10, 2001
    Assignee: Societe Anonyme Dubuis
    Inventors: Alain Courtois, Jean-Pierre Huet
  • Patent number: 6244517
    Abstract: System for attaching an electric terminal connector to an element, including a threaded rod being one of, integral with, or fixed to the element and a nut, provided with a clamping washer adapted to clamp a terminal connector on one of, the element, or an electrically conductive member attached to the element. The clamping washer has a surface thereon adapted to be positioned across a surface on a terminal connector. The surfaces across from a terminal connector and the clamping washer are rotatable relative to each other without unscrewing the nut.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: June 12, 2001
    Assignee: Dubuis, Societe Anonyme
    Inventors: Alain Courtois, Jean-Pierre Huet
  • Patent number: 5472322
    Abstract: Positive displacement vacuum pump is provided with a pump body, and a piston is positioned in the pump body with the piston being mounted for actuation by alternative linear movement. An elastic element biases the piston in a first direction, and a cam acts on a first end of the piston, with the cam being rotatably movable along an axis that is coaxial with the longitudinal axis of the piston to drive the piston in an alternating linear movement. A transverse bar is positioned between a first end of the piston and the cam, and the transverse bar is rotatably fixed but translationally guided in the direction of alternative linear movement of the piston. Additionally, the cam comprises a double surface to equally bias the transverse bar at two positions along the length of the bar.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: December 5, 1995
    Assignee: Dubuis, Societe Anonyme
    Inventors: Jean-Pierre Huet, Alain Courtois
  • Patent number: 4823588
    Abstract: The present invention is a hydraulic hand-tool which includes an elongate piston having at least two sections of different transverse cross-sectional areas, a housing including a hollow front end portion having an interior surface defining a plurality of sections with different inner diameters corresponding in size, position and number to accommodate the sections of the piston in a manner which permits the piston to slide in a reciprocating manner within the hollow forward end of the housing and to define a main chamber and at least one auxiliary chamber for receiving hydraulic fluid as the piston slides in a forward direction; an hydraulic fluid conduit having a primary line with an end opening directly into the main chamber and at least one supplemental line communicating with at least one of the auxiliary chambers after the piston slides in a forward direction a predetermined distance; an hydraulic fluid or reservoir adapted to supply hydraulic fluid to another end of the primary line; and a pump in commun
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: April 25, 1989
    Assignee: Societe D'Etudes Et De Methode D'Applications
    Inventors: Marcel Bussereau, Alain Courtois, Jean-Pierre Huet
  • Patent number: 4186911
    Abstract: The jack includes conventionally a rod mounted in the cylinder and moved in translation with respect to the latter by any known means. This jack is characterized in that the rod is fast in rotation with a bearing in which it is slideably mounted if necessary in fluid-tight manner, said bearing being mounted in the cylinder head end or in an element fast to the latter. A rotation actuating device is provided to directly or indirectly rotate the bearing so that the rod can be driven at will with a translation movement or a rotation movement or with a combination of these two movements. The invention is particularly useful in automation.
    Type: Grant
    Filed: May 17, 1978
    Date of Patent: February 5, 1980
    Inventors: Jean P. Huet, Alain Courtois