Patents by Inventor Pierre G. Cros

Pierre G. Cros 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: 4331020
    Abstract: This dimension indicator for sheet-metal folding, bending or shearing machine tools comprises a measuring apparatus capable of displaying the distance from the adjustable stop member provided for positioning the workpiece to a reference plane. The device comprises structure for correcting the consequence of a displacement of the reference plane, in the form of a mechanical device coupled to the machine adjustment member and adapted to act directly or indirectly upon one of the component elements of a coupling or a data transmission disposed between the member controlling the stop member and the measuring apparatus, so as to actuate this apparatus.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: May 25, 1982
    Assignee: Promecam Sisson-Lehmann
    Inventor: Pierre G. Cros
  • Patent number: 4252041
    Abstract: The shearing machine comprises a stationary apron and a moving apron carried by lateral upright members and provided with cutting blades, the moving apron being guided at both ends by means of roller devices adapted to cooperate with guide ramps mounted on bottom lateral extensions of the moving apron. The guiding devices are placed substantially at the level of the horizontal cutting plane while another guiding device is located in the bottom portion of the shearing machine. The extensions are adapted to receive and transmit the cutting power developed by jacks mounted on the stationary apron.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: February 24, 1981
    Assignee: Promecam Sisson-Lehmann
    Inventor: Pierre G. Cros