Patents by Inventor Donald W. Cooper

Donald W. Cooper 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).

  • Leverage adapter for use in combination with an elongated hand tool
    Patent number: 6845692
    Abstract: A leverage assembly is used in combination with an elongated hand tool. The hand tool has a first end adapted for engaging an object and a second end opposite the first end. The leverage assembly includes an adapter bar having first and second ends. A U-bolt attaches the first end of the adapter bar to the second end of the hand tool. A leverage bar engages the second end of the adapter bar. A receptacle is formed with the adapter bar for receiving the leverage bar. The leverage bar, adapter bar, and hand tool cooperate to multiply a force applied by the user to the object to manipulate the object.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: January 25, 2005
    Inventor: Donald W. Cooper
  • Leverage adapter for use in combination with an elongated hand tool
    Publication number: 20040055428
    Abstract: A leverage assembly is used in combination with an elongated hand tool. The hand tool has a first end adapted for engaging an object and a second end opposite the first end. The leverage assembly includes an adapter bar having first and second ends. A U-bolt attaches the first end of the adapter bar to the second end of the hand tool. A leverage bar engages the second end of the adapter bar. A receptacle is formed with the adapter bar for receiving the leverage bar. The leverage bar, adapter bar, and hand tool cooperate to multiply a force applied by the user to the object to manipulate the object.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 25, 2004
    Inventor: Donald W. Cooper
  • Leverage adapter for use in combination with an elongated hand tool
    Patent number: 6626069
    Abstract: A leverage assembly is used in combination with an elongated hand tool. The hand tool has a first end adapted for engaging an object and a second end opposite the first end. The leverage assembly includes an adapter bar having first and second ends. A U-bolt attaches the first end of the adapter bar to the second end of the hand tool. A leverage bar engages the second end of the adapter bar. A receptacle is formed with the adapter bar for receiving the leverage bar. The leverage bar, adapter bar, and hand tool cooperate to multiply a force applied by the user to the object to manipulate the object.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: September 30, 2003
    Inventor: Donald W. Cooper
  • Hand tool adapter
    Patent number: D567645
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: April 29, 2008
    Inventor: Donald W. Cooper