Patents by Inventor Leon Harlan Ivy

Leon Harlan Ivy 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).

  • Galvanometer mechanism mounted on printed circuit board having plug portion for insertion into control console receptacle
    Patent number: 4105969
    Abstract: A galvanometer mechanism including a circuit board having an electrical circuit printed thereon and defining a plug portion for insertion into a galvanometer control console receptacle. The circuit board further includes a magnet fixed thereto. A torsion bar secured between legs of the magnet supports an electrical coil which is responsive to an applied signal and is operatively connected to printing apparatus.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: August 8, 1978
    Inventor: Leon Harlan Ivy