Patents by Inventor Francois Dolle

Francois Dolle 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: 4022307
    Abstract: The invention relates to a device for driving a transfer beam for handling relatively heavy loads, comprising in the case of a beam having a rack rigidly associated therewith. Said device consists essentially of a transmission incorporating between the driving motor and the pinion in meshing engagement with the rack a clutch and a brake both controlled by electromagnetic means, servo means for supplying electric current to each electromagnetic control of said clutch and brake, and a pair of servo-generators adapted to monitor the one the acceleration phase of the transfer beam from the standstill position of said beam and the other the deceleration phase before stopping the beam.
    Type: Grant
    Filed: November 14, 1975
    Date of Patent: May 10, 1977
    Assignees: Regie Nationale des Usines Renault, Automobiles Peugeot
    Inventors: Yves Berrie, Claude Sebire, Francois Dolle