Patents Assigned to Numerical Control Program Service, Inc.
  • Method and apparatus for engraving characters
    Patent number: RE28747
    Abstract: A method and apparatus for engraving characters by the use of numerically controlled machine tools. The characters are engraved by moving a first machine tool about the outline of the desired character. Where the character has inside corners, a second numerically controlled machine tool is moved about the outline at the inside corner at a plurality of depths to reduce the radius of the curvature at the inside corner.
    Type: Grant
    Filed: December 10, 1974
    Date of Patent: March 30, 1976
    Assignee: Numerical Control Program Service, Inc.
    Inventor: Herman Graboyes