Patents by Inventor Ken D. Livingston

Ken D. Livingston 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).

  • Single brake spring tool and method of removal of drum brake spring
    Patent number: 8707533
    Abstract: A brake drum spring release tool includes a straight elongate rod member with a laterally projecting lever arm extending from one side and an extended hook member from the end of the rod member. The lever arm acts as a fulcrum when positioned on a drum brake spring simultaneously engaged by a hook member. Placing a generally lateral force on the grip end of the tool will cause rotational force imparted by the hook member on the spring typically with a mechanical advantage associated with the fulcrum of the lever arm to thereby release the spring from a drum brake shoe.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: April 29, 2014
    Assignee: Lisle Corporation
    Inventors: Ken D. Livingston, Randall J. Ploeger
  • Single Brake Spring Tool and Method of Removal of Drum Brake Spring
    Publication number: 20130097837
    Abstract: A brake drum spring release tool includes a straight elongate rod member with a laterally projecting lever arm extending from one side and an extended hook member from the end of the rod member. The lever arm acts as a fulcrum when positioned on a drum brake spring simultaneously engaged by a hook member. Placing a generally lateral force on the grip end of the tool will cause rotational force imparted by the hook member on the spring typically with a mechanical advantage associated with the fulcrum of the lever arm to thereby release the spring from a drum brake shoe.
    Type: Application
    Filed: October 24, 2011
    Publication date: April 25, 2013
    Applicant: Lisle Corporation
    Inventors: Ken D. Livingston, Randall J. Ploeger