Patents by Inventor Charles M. O'Keefe

Charles M. O'Keefe 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: 8360696
    Abstract: An arbor is provided for small diameter quick change and standard hole saws. Each hole saw defines an outer diameter of less than 1¼ inches, a central aperture and at least one drive pin recess. The arbor comprises an arbor body including an end portion engageable within the central aperture, and a drive member having at least one drive pin receivable in a corresponding drive pin recess of the hole saw for rotatably driving the hole saw.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: January 29, 2013
    Assignee: Irwin Industrial Tool Company
    Inventors: Charles M. O'Keefe, James E. Pangerc
  • Patent number: 8328476
    Abstract: An arbor is provided for small diameter quick change and standard hole cutters. Each hole cutter defines an outer diameter of less than 1¼ inches, a central aperture and at least one drive pin recess. The arbor comprises an arbor body including an end portion engageable within the central aperture, and a drive member having at least one drive pin for engaging a corresponding drive pin recess of the hole cutter for rotatably driving the hole cutter.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: December 11, 2012
    Assignee: Irwin Industrial Tool Company
    Inventors: Charles M. O'Keefe, Joseph Thomas Novak, James E. Pangerc
  • Publication number: 20090279971
    Abstract: An arbor is provided for small diameter quick change and standard hole cutters. Each hole cutter defines an outer diameter of less than 1¼ inches, a central aperture and at least one drive pin recess. The arbor comprises an arbor body including an end portion engageable within the central aperture, and a drive member having at least one drive pin for engaging a corresponding drive pin recess of the hole cutter for rotatably driving the hole cutter.
    Type: Application
    Filed: March 18, 2009
    Publication date: November 12, 2009
    Inventors: Charles M. O'Keefe, Joseph Thomas Novak, James E. Pangerc
  • Publication number: 20090238653
    Abstract: An arbor is provided for small diameter quick change and standard hole saws. Each hole saw defines an outer diameter of less than 1¼ inches, a central aperture and at least one drive pin recess. The arbor comprises an arbor body including an end portion engageable within the central aperture, and a drive member having at least one drive pin receivable in a corresponding drive pin recess of the hole saw for rotatably driving the hole saw.
    Type: Application
    Filed: March 18, 2008
    Publication date: September 24, 2009
    Inventors: Charles M. O'Keefe, James E. Pangerc
  • Patent number: 7073992
    Abstract: An arbor is provided for a hole cutter having an outer surface defining a threaded hole, and a pair of pin holes spaced radially relative to the threaded hole. The arbor has an arbor body defining a threaded end portion threadedly engageable with the threaded hole of the hole cutter, a stop surface formed adjacent to the threaded end portion and spaced radially outwardly therefrom; a drive shank located on another end portion of the arbor body; and a pair of first bearing surfaces located on opposite sides of the arbor body relative to each other and extending axially along a portion of the arbor body between the stop surface and drive shank.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: July 11, 2006
    Assignee: Irwin Industrial Tool Company
    Inventors: William B. Korb, Charles M. O'Keefe
  • Patent number: D642028
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: July 26, 2011
    Assignee: Irwin Industrial Tool Company
    Inventors: Douglas K. Fosberg, Jr., Charles M. O'Keefe
  • Patent number: D693661
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: November 19, 2013
    Assignee: Irwin Industrial Tool Company
    Inventors: Douglas K. Fosberg, Jr., Charles M. O'Keefe
  • Patent number: D714602
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: October 7, 2014
    Assignee: Irwin Industrial Tool Company
    Inventors: Douglas K. Fosberg, Jr., Charles M. O'Keefe