Patents by Inventor Jacques Michel Hennequin

Jacques Michel Hennequin 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).

  • Inductive device for precisely positioning a movable member
    Patent number: 3988657
    Abstract: A device for precisely positioning a movable member along a rectilinear path, wherein a plane conductive winding is attached to and moves with said member, wherein sensors are spaced apart along said path opposite to said winding, and wherein a control circuit responds to the signals generated by said sensors for servoing the motor that drives said movable member.
    Type: Grant
    Filed: December 30, 1971
    Date of Patent: October 26, 1976
    Assignee: Societe Industrielle Honeywell Bull
    Inventors: Guy Prival, Jacques Michel Hennequin, Yves-Jean Francois Brette
  • Position detecting system
    Patent number: 3953816
    Abstract: A position detecting system includes a sending unit in the form of a continuous conductor describing a Greek key pattern surrounded by a return-path conductor arrangement. The return-path conductor is so arranged as to provide additional legs of the pattern with the widths and spacings of such additional legs with respect to adjacent legs of the pattern being such as to assure a magnetic effect producing well defined and evenly spaced node and antinode signals in an associated pick-up head.
    Type: Grant
    Filed: October 1, 1973
    Date of Patent: April 27, 1976
    Assignee: Compagnie (Societe) Anonyme
    Inventor: Jacques Michel Hennequin