Patents by Inventor Ronald W. Arntzen

Ronald W. Arntzen 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: 5299105
    Abstract: A new and improved broken tap extraction apparatus for a broken tap in a material undergoing thread tapping, wherein the broken tap has thread cutting portions and has noncutting portions located between the cutting portions. The broken tap extraction apparatus of the invention includes a head portion adapted to receive a torque applying tool, a shank portion connected to the head portion, and at least two tap engaging portions projecting from the shank portion. The shank portion receives torque applied at the head portion and transmits the torque to the tap engaging portions that project from the shank portion. The tap engaging portions engage the noncutting portions of the tap, such that when torque is applied to the head portion, the torque is transmitted to the tap engaging portions for exerting the torque against the noncutting portions of the broken tap for turning the broken tap out of the material undergoing tapping.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: March 29, 1994
    Inventor: Ronald W. Arntzen