Patents by Inventor Fernand Tenand

Fernand Tenand 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 positioning a machining spindle using its pilot rod
    Patent number: 5769576
    Abstract: The means for aligning this device comprise a sphere holder (17) placed on a support (4) with the possibility, in the phase of positioning the spindle (6), of it shifting in all directions of the horizontal plane, a spherical core (13) mounted in the sphere holder (17) with the possibility of rotating freely, a substantially vertical sheath (10) which can be shifted axially in the core (13) and carries the spindle for driving the tool.
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: June 23, 1998
    Assignee: Machines Serdi
    Inventors: Daniel Gerard, Fernand Tenand
  • Tool-holder spindle for a fine-grinding machine, in particular a machine for grinding the valve seats of heat engines
    Patent number: 4913601
    Abstract: The present invention concerns a tool holder spindle for a fine-grinding hine, in particular a machine for grinding the valve seats of heat engines.According to the invention, an antivibration device (50), which is separate from the cutting tool (4), is removably mounted on the free end of the spindle (1). This device comprises a sliding block (10) arranged on the opposite side to the cutting tool (4), relative to the axis of movement of the spindle (1), and this sliding block itself has a face (11) bearing against the surface (6) to be machined, which has already been roughed down but is still to be finished.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: April 3, 1990
    Assignee: Societe D'Etude, de Realisation et de Diffusion Industrielles - Serdi
    Inventors: Fernand Tenand, Daniel Gerard