Patents by Inventor David Plahm

David Plahm 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).

  • Patent number: 4587735
    Abstract: A knife guard suitable for various type cutting or chopping blades is provided and utilizes a plurality of elongated members which are hinged together and biased by the hinges and/or separate a biasing arm toward a first closed position wherein at least one of the elongated members covers or protects the blade. The guard can be moved to a stable, second open position wherein the one elongated element is moved out in front of the blade, but yet can move quickly back into its closed first position to prevent unintentional injury or damage.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: May 13, 1986
    Inventors: Charles J. Walters, David Plahm