Patents by Inventor James R. Donohue

James R. Donohue 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).

  • Weighted jump rope handle
    Patent number: 4647037
    Abstract: Variable weight jump or skip rope handles which have a handle grip member which is rotatably mounted on, and is axially aligned with, a centrally extending end-connect bar with end weight members of variable weight designation removably mounted on the ends of the end-connect bar adjacent to the ends of the grip member. A swivel connector is mounted on one of each pair of end weight members for attachment of each handle assembly to an end of a skip or jump rope.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: March 3, 1987
    Inventor: James R. Donohue