Patents by Inventor Ralph D. Mellinger

Ralph D. Mellinger 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).

  • Variable length tool handle
    Patent number: 4300607
    Abstract: A segmented handle is characterized by an upper gripping member having an opening which partially extends therethrough. At least one lower gripping member is positioned adjacent the upper gripping member and has an opening extending therethrough to permit communication with the opening in the upper gripping member. An apparatus for releasably securing the gripping members in a fixed, coaxial relationship is positioned on adjacent portions of said members. Alternatively, the above apparatus may be disposed in the opening of the upper gripping member.
    Type: Grant
    Filed: March 7, 1980
    Date of Patent: November 17, 1981
    Inventor: Ralph D. Mellinger