Patents by Inventor Frederick S. Beckman

Frederick S. Beckman 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).

  • Stamper having adjustable die depth
    Patent number: 5115729
    Abstract: A pre-inked stamper has an adjustable die depth to accommodate shrinkage and to vary die impression. Adjustment is accomplished by rotation of a handle about a shaft which is attached to the die to thereby alter the stroke. A ratchet and pawl mechanism includes a plurality of grooves having camming surfaces formed on an end of the shaft located adjacent the handle. A pawl selectively engages the grooves and biases the handle against unintended rotation.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: May 26, 1992
    Assignee: Superior Marking Equipment Co.
    Inventors: Frederick S. Beckman, Paul Down