Patents by Inventor Alphonse Ferrari

Alphonse Ferrari 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).

  • Drawing machine having automatically replaced writing members and apparatus therefor
    Patent number: 4683476
    Abstract: The body of a writing member is movable in translation between a rest position and a work position, at least partly under the action of a magnetic force, and is permanently held against at least one guide element carried by the support, by means of a magnetic attraction force acting transversely relative to the direction of displacement in translation of the writing member.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: July 28, 1987
    Assignee: Benson S.A.
    Inventors: Alphonse Ferrari, Michel Roche, Jean-Claude Dard