Patents by Inventor Jacques Petres

Jacques Petres 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).

  • Device for vibrating the pin of a viscometer
    Patent number: 4312216
    Abstract: The present invention relates to a device for vibrating the pin of a viscometer, wherein the emitter arm of the pin is fixed to the end of a spring leaf pivoted about a fixed point, said leaf abutting on a ball bearing whose inner race is moved in rotation by a drive shaft eccentric with respect to the axis of the bearing and whose outer race is locked in rotation. The invention is more particularly applied to vibrating viscometers of the type comprising a pin.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: January 26, 1982
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Paul Beaudoin, Patrick Gilbert, Jacques Petres