Patents by Inventor Walter Arnott

Walter Arnott 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).

  • Bowling ball
    Patent number: 4603861
    Abstract: A bowling ball having a spherical solid core and a spherical mantle which is hollow in the center to accommodate the core in closely adjacent surrounding relationship. A layer of lubricant, such as oil or polytetrafluoroethylene, around the core allows for independent rotation of the core and the mantle to increase the "mixing" action of the ball then it strikes the pins due to separation of active and passive masses of the mantle and the core.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: August 5, 1986
    Inventor: Walter Arnott