Patents by Inventor Ralph D. Anderson

Ralph D. Anderson 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).

  • Patent number: 6453820
    Abstract: A rotating tubular projectile for increasing the stability of the projectile and the accuracy of the firearm. The rotating tubular projectile includes a cylindrical body having an open first end. The cylindrical body has an axial passageway that extends through the open first end. Additionally, a spiraled airfoil is mounted in the axial passageway of the cylindrical body for impinging a flow of air flowing through the axial passageway. In one embodiment of the present invention the spiraled airfoil rotates the cylindrical body with respect to a longitudinal axis of the cylindrical body as it travels through the barrel and away from the firearm.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: September 24, 2002
    Inventor: Ralph D. Anderson