Patents by Inventor Jean-Marie Jollois

Jean-Marie Jollois 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).

  • Speed reducing equipment, particularly for vehicles
    Patent number: 4292556
    Abstract: The invention concerns speed reducing equipment for vehicles, comprising an eddy current speed reducer itself comprising four inductor windings, a battery, and control means actuated by a five-position lever.Safety means are provided for automatically preventing the maintenance of the energization of the speed reducer corresponding respectively to positions 4 and 3 after respectively time delays of the order of 20 seconds and 3 minutes and the inductor windings are reinforced so that they may generate a number of ampere-turns greater than that which they are usually capable of producing, which makes it possible to obtain high torques when cold for a speed reducer of given dimensions.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: September 29, 1981
    Assignee: Labavia-S.G.E.
    Inventor: Jean-Marie Jollois
  • Eddy-current retarders whose stator comprises a ring of electro-magnets
    Patent number: 4135106
    Abstract: The invention concerns an eddy-current retarder whose stator comprises a ring of electro-magnets mounted on a transverse common support 4, each electro-magnet comprising a core surrounded by a coil of wire 2. Each coil 2 is entirely enveloped in a case of hard insulating material moulded thereon and this case is wedged angularly on support 4 by cooperation of bosses 7 moulded therewith and notches 6 or other depressions hollowed out in support 4.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: January 16, 1979
    Assignee: Labavia S.G.E.
    Inventor: Jean-Marie Jollois