Patents by Inventor Jean Plazenet

Jean Plazenet 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: 6020589
    Abstract: To reduce the costs of manufacture of a nuclear medicine machine, there is provided a machine whose detector is not mobile. In order, nevertheless, to give it extensive possibilities of adaptation, an input face of the detector is made in a concave curved shape. As a variant, with a mobility that is simple to achieve, it is even possible to take account of the differences in size among patients.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: February 1, 2000
    Assignee: SMV International
    Inventors: Jean Plazenet, Philippe Van Boxem
  • Patent number: 5243902
    Abstract: A bending press is equipped with a movable lower platen actuated by at least three hydraulic jacks, two of which are placed at the lateral ends of the movable platen and at least one of which is placed at the center along the axis of the platen. The hydraulic circuit is associated with a device for detecting the presence of any tilting torque on the movable platen, and with a comparator and computer system connected to the detection device. The jacks are connected to a common directional distributor via pressure control units controlled by the comparator and computer system. This system is capable of producing a continuous reduction in pressure exerted on the jack located on the side opposite to the direction of the tilting torque and possibly also on the jack located at the center so as to produce a torque in opposition to the tilting torque.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: September 14, 1993
    Assignee: Amada Co.
    Inventor: Jean Plazenet