Patents by Inventor Jacques Roland Deproux

Jacques Roland Deproux 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).

  • Striking device for dot printer
    Patent number: 3971311
    Abstract: Striking device for a dot printer, comprising an electrodynamic coil connected with a striking hammer, subjected to the action of at least one magnetic field substantially perpendicular to its plane and connected to a fixed support by means of a deformable elastic suspension unit. The device is characterized in that the electrodynamic coil is formed by at least one spiral cut in a thin metal foil and in that the elastic suspension unit is formed by narrow metal strips which are coplanar with each other and with the spiral.
    Type: Grant
    Filed: February 15, 1974
    Date of Patent: July 27, 1976
    Assignee: Compagnie Honeywell Bull (Societe Anonyme)
    Inventor: Jacques Roland Deproux