Patents by Inventor Ryan F. Hall

Ryan F. Hall 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).

  • Step drill for wood
    Patent number: 9156094
    Abstract: A wood drill bit has a plurality of step sections where each step section has at least one flute that terminates in a cutting edge. The effective diameter of each of the plurality of step sections is different than the diameter of the other of the plurality of step sections such that a single bit may be used to bore holes in wood of different diameters.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: October 13, 2015
    Assignee: Irwin Industrial Tool Company
    Inventors: LaVerne R. Durfee, Ryan F. Hall
  • STEP DRILL FOR WOOD
    Publication number: 20130189044
    Abstract: A wood drill bit has a plurality of step sections where each step section has at least one flute that terminates in a cutting edge. The effective diameter of each of the plurality of step sections is different than the diameter of the other of the plurality of step sections such that a single bit may be used to bore holes in wood of different diameters.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 25, 2013
    Inventors: LaVerne R. Durfee, Ryan F. Hall