Patents by Inventor Pascal Bigras

Pascal Bigras 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).

  • Parallel manipulator
    Patent number: 7673537
    Abstract: A manipulator for supporting and displacing an object comprises a base. A moving portion supports the object. Two articulated mechanisms each having five rotational joints between links, with each articulated mechanism being connected to the base by two of the rotational joints. The moving portion is connected to both the articulated mechanisms by moving-portion joints. The articulated mechanisms and moving-portion joints are arranged with respect to each other between the base and the moving portion so as to constrain movement of the moving portion to displacements in two translational degrees of freedom and two rotational degrees of freedom with respect to the base. Four actuators are each operatively connected to a different one of the rotational joints between the base and the articulated mechanisms so as to selectively control the displacements of the moving portion in any one of the four degrees of freedom of the moving portion.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: March 9, 2010
    Assignee: Socovar, Société En Commandite
    Inventors: Simon Lessard, Ilian Bonev, Pascal Bigras
  • PARALLEL MANIPULATOR
    Publication number: 20080295637
    Abstract: A manipulator for supporting and displacing an object comprises a base. A moving portion supports the object. Two articulated mechanisms each having five rotational joints between links, with each articulated mechanism being connected to the base by two of the rotational joints. The moving portion is connected to both the articulated mechanisms by moving-portion joints. The articulated mechanisms and moving-portion joints are arranged with respect to each other between the base and the moving portion so as to constrain movement of the moving portion to displacements in two translational degrees of freedom and two rotational degrees of freedom with respect to the base. Four actuators are each operatively connected to a different one of the rotational joints between the base and the articulated mechanisms so as to selectively control the displacements of the moving portion in any one of the four degrees of freedom of the moving portion.
    Type: Application
    Filed: June 2, 2008
    Publication date: December 4, 2008
    Inventors: Simon LESSARD, Ilian Bonev, Pascal Bigras