Patents Assigned to Irwin Industrial Tool Company
  • COATED HOLE CUTTER
    Publication number: 20110170972
    Abstract: A coated hole cutter including an ink-based colored coating applied only to the external surface of the cylindrical blade body of the hole cutter, but not to the surfaces of a circumferentially-extending cutting edge or to the interior surface of the blade body. The ink-based color coating is an ultraviolet activated ink that cures when the coating is exposed to a specific ultraviolet light intensity and wavelength. At least the surfaces of the cutting edge and the internal surface of the blade body, which do not include the coating, have a steam tempered oxide finish that imparts a color that contrasts with the color imparted by the coating.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 14, 2011
    Applicant: Irwin Industrial Tool Company
    Inventors: Robert Richard Zielonka, Joseph H. DeSantis, Christopher F. Fitzgerald, Peter Weremchuk
  • HOLE CUTTER WITH EXTRUDED CAP
    Publication number: 20110170965
    Abstract: A hole cutter having an extruded plate cap and methods and apparatuses for making such caps and hole cutters. The plate cap has planar opposing external and internal surfaces with an extruded hub extending axially inwardly from the internal surface. An aperture extends axially through the hub from the external surface. At least a portion of the aperture can be threaded for threaded engagement with a driving arbor. The hub is long enough so that the threaded portion contains at least two full threads. A blade body with a cutting edge is attached to the cap to form a hole cutter.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 14, 2011
    Applicant: Irwin Industrial Tool Company
    Inventors: Joseph Thomas Novak, Robert Richard Zielonka, William B. Korb
  • Hole Cutter with Axially-Elongated Aperture Defining Multiple Fulcrums
    Publication number: 20110170969
    Abstract: A hole cutter has a cylindrical blade body including a cutting edge and one or more axially-elongated apertures formed within a side wall of the blade body. The axially-elongated aperture is configured to receive a lever, such as a screwdriver, therethrough. Each axially-elongated aperture includes a first fulcrum axially spaced adjacent to the cutting edge, a second fulcrum axially spaced further away from the cutting edge than the first fulcrum, and a third fulcrum axially spaced between the first and second fulcrums. A lever, such as a screwdriver, can be inserted into the aperture and placed against each of the fulcrums to lever slugs out of the interior of the blade body.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 14, 2011
    Applicant: Irwin Industrial Tool Company
    Inventors: Joseph Thomas Novak, Matthew Christopher Green
  • Hole Cutter With Minimum Tooth Pitch to Blade Body Thickness Ratio
    Publication number: 20110170970
    Abstract: A hole cutter for cutting a work piece, such as a wood and/or metal work piece, has a substantially cylindrical blade body defining a wall thickness within the range of about 0.032 inch to about 0.038 inch, and a cutting edge formed on one end of the blade body including a plurality of teeth defining an average tooth pitch within the range of about 3.5 TPI to about 5.5 TPI for cutting the work piece and forming chips therefrom. The substantially cylindrical blade body and cutting edge define an average tooth pitch to blade body thickness ratio of at least about 110.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 14, 2011
    Applicant: Irwin Industrial Tool Company
    Inventors: Charles E. Kalomeris, Joseph Thomas Novak, William B. Korb, Christopher F. Fitzgerald
  • Hole Cutter With Chip Egress Aperture
    Publication number: 20110170971
    Abstract: A hole cutter has a substantially cylindrical blade body defining a blade body circumference, a cutting edge formed on one end of the blade body, and an axially-elongated slot formed through the substantially cylindrical blade body. The axially-elongated slot is configured to receive chips flowing from the cutting edge within the interior of the blade body and (i) into the slot, and/or (ii) through the slot, to prevent the collection of such chips within the interior of the blade body and/or at an interface between the blade body and work piece. The axially-elongated slot defines a first end adjacent to the cutting edge, a second end axially spaced further from the cutting edge, and a slot area. The hole cutter further defines a total slot area to blade body circumference ratio within the range of about 0.1 to about 0.3 depending on the size of the hole cutter.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 14, 2011
    Applicant: Irwin Industrial Tool Company
    Inventors: Joseph Thomas Novak, Matthew Christopher Green
  • Laser guide
    Patent number: 7966738
    Abstract: A laser guide for rotating tools comprises a first housing portion and a second housing portion. A seal is provided between the first housing portion and the second housing portion. A lens is located in the first housing portion or second housing portion. A seal is provided between the lens and the first housing portion. A method of testing a laser guide comprising applying a pressure to an internal chamber of the laser guide. Monitoring the laser guide for pressure gains or losses in the chamber.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: June 28, 2011
    Assignee: Irwin Industrial Tool Company
    Inventors: Derek J. Nash, Matthew Scott Anderson, Paul Hemingfield, Craig Peter Ernest Davidson
  • Safety mechanism for a torch
    Patent number: 7967601
    Abstract: A device for creating an electrical potential, such as a piezoelectric igniter, is connected to a conductor that conducts current to a burn tube to create a spark that ignites the fuel in the burn tube. In one embodiment a gap is formed in the conductor. An insulator is located in the gap such that is can be selectively moved between an insulating position where the flow of electricity over the gap is prevented such that no spark is created in the burn tube and a non-insulating position where electricity is allowed to flow over the gap such that a spark is created in the burn tube. In another embodiment the piezoelectric igniter forms part of the electrical circuit and is in electrical conductive contact or proximity to an electrical conductor that forms part of the ignition circuit. An insulator may selectively located between the igniter and the conductor.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: June 28, 2011
    Assignee: Irwin Industrial Tool Company
    Inventors: Michael R Johnston, Thomas A. Burdsall
  • SPADE BIT
    Publication number: 20110150588
    Abstract: The drill bit comprises a cutting blade formed at one end of a shank. The cutting blade has a pair of cutting shoulders that extend inwardly from the outer sides of the blade toward the bit axis. A tip having converging sides that create a point extends from the shoulders. The cutting edge of each shoulder is beveled with respect to the plane of the face of the blade. A flute is provided on the leading portion of each blade face adjacent the cutting edges. Each flute is a smooth curve that creates a substantially uninterrupted recess on each face of the blade that facilitates chip removal, increases the drill rate and lowers the power required to drill a hole. A non-stick coating may be applied to the blade to further facilitate chip removal.
    Type: Application
    Filed: February 28, 2011
    Publication date: June 23, 2011
    Applicant: IRWIN INDUSTRIAL TOOL COMPANY
    Inventor: Laverne R. Durfee
  • Assembly method and apparatus
    Patent number: 7954794
    Abstract: The assembly method of the invention uses a cartridge that is separate from the housing of the device being manufactured. The cartridge is configured such that the location of the various components is defined and the components are easily accessed. The cartridge and its components may be assembled off of the main assembly line. Once the cartridge is assembled, the cartridge and assembled components can be placed in the housing. The assembly of the device can then be completed.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: June 7, 2011
    Assignee: Irwin Industrial Tool Company
    Inventors: Anthony B. Fuller, Ralf Strauβ, Matthew Shute
  • Release explosion damper
    Patent number: 7942392
    Abstract: A clamping and/or spreading tool comprising a push or pull rod to which a mobile jaw is fixed, a fixed jaw, a gear mechanism which can be used to move the mobile jaw towards or away from the fixed jaw by moving the push or pull rod in a clamping or spreading direction, and to apply clamping and/or bracing forces between the jaws, and a lock used to block movement of the push or pull rod in an opening direction opposing the clamping or spreading direction, in order to maintain clamping and/or spreading forces produced between the jaws. A mechanism for dissipating the stored clamping and/or spreading forces enables an absorption movement of the push or pull rod in the opening direction along a pre-determined absorption course, and especially detachably blocks an absorption movement of the push or pull rod over the predetermined absorption course, in the opening direction.
    Type: Grant
    Filed: March 12, 2005
    Date of Patent: May 17, 2011
    Assignee: Irwin Industrial Tool Company GmbH
    Inventors: Manfred Geier, Ralf Strauβ
  • Spade bit
    Patent number: 7922429
    Abstract: The drill bit comprises a cutting blade formed at one end of a shank. The cutting blade has a pair of cutting shoulders that extend inwardly from the outer sides of the blade toward the bit axis. A tip having converging sides that create a point extends from the shoulders. The cutting edge of each shoulder is beveled with respect to the plane of the face of the blade. A flute is provided on the leading portion of each blade face adjacent the cutting edges. Each flute is a smooth curve that creates a substantially uninterrupted recess on each face of the blade that facilitates chip removal, increases the drill rate and lowers the power required to drill a hole. A non-stick coating may be applied to the blade to further facilitate chip removal.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: April 12, 2011
    Assignee: Irwin Industrial Tool Company
    Inventor: Laverne R. Durfee
  • Four point utility blade
    Patent number: 7921568
    Abstract: A utility blade for use with conventional retractable and fixed blade utility knives comprising a blade body having a generally trapezoidal configuration defined by a cutting edge, an opposite back edge, a pair of opposing side edges and a pair of cutting points defined by the points of intersection between the side edges and the cutting edge. The blade further defines a pair of score lines, each proximate to one of the side edges. The score lines enable the user to remove a dulled or damaged cutting point, which in turn provides the user with two additional cutting points defined by the points of intersection between the score lines and the cutting edge. Further, the blade is configured with one or more notches strategically located on the back edge of the blade, such that each cutting point can extend from the utility knife at approximately the same distance.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: April 12, 2011
    Assignee: Irwin Industrial Tool Company
    Inventor: Matthew C. Green
  • Spade bit
    Patent number: 7905690
    Abstract: The drill bit comprises a cutting blade formed at one end of a shank. The cutting blade has a pair of cutting shoulders that extend inwardly from the outer sides of the blade toward the bit axis. A tip having converging sides that create a point extends from the shoulders. The cutting edge of each shoulder is beveled with respect to the plane of the face of the blade. A flute is provided on the leading portion of each blade face adjacent the cutting edges. Each flute is a smooth curve that creates a substantially uninterrupted recess on each face of the blade that facilitates chip removal, increases the drill rate and lowers the power required to drill a hole. A non-stick coating may be applied to the blade to further facilitate chip removal.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: March 15, 2011
    Assignee: Irwin Industrial Tool Company
    Inventor: Laverne R. Durfee
  • Hard metal plate for rock drill and rock drill
    Patent number: 7900721
    Abstract: In a hard metal plate for insertion in to a seat formed at one end of a drill shaft of a rock drill, comprising a substantially rectangular base shape having two opposed long sides extending in the axial direction of the drill shaft which are at least partially covered by the seat, two opposed, substantially axial free short sides, a radial bottom side facing towards the seat and a cutting face facing away from the seat, both short sides are formed by an axial section having a purely axial direction component and a conical section inclined towards the axial direction, so that at the short side, the substantially rectangular plate tapers towards the bottom side.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: March 8, 2011
    Assignee: Irwin Industrial Tool Company
    Inventor: Kirpal Singh Sian
  • Torch
    Publication number: 20110053103
    Abstract: A torch and a burn tube for a torch are provided. The torch comprises a burn tube having a first end and a second end remote from the firsts end secured to a torch body for receiving a fuel. The first end has an orifice through which a flame is discharged. The burn tube is one-piece from the first end to the second end. The burn tube has an expanded portion located adjacent to the first end and a flame guide located entirely inside of the burn tube adjacent the first end. A method of making the burn tube and torch is also provided.
    Type: Application
    Filed: August 16, 2010
    Publication date: March 3, 2011
    Applicant: IRWIN INDUSTRIAL TOOL COMPANY
    Inventors: Thomas A. Burdsall, Norman Leblanc
  • Simple high force clamp
    Patent number: 7896322
    Abstract: A clamping and/or spreading tool including a push or pull rod, comprises at least one lock blocking displacement of the push or pull contrary to the clamping and/or spreading direction by it being canted by at least one biasing mechanism, such as a spring, relative to the push or pull rod, and a releasing mechanism which when actuated cancels the blocking effect of the lock such that the biasing mechanism and the releasing mechanism functionally engage the lock at least at opposite sides of the push or pull rod.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: March 1, 2011
    Assignee: Irwin Industrial Tool Company GmbH
    Inventors: Manfred Geler, Ralf Strauβ
  • BIT HOLDER
    Publication number: 20110031145
    Abstract: A bit holder comprises a body defining at least one cavity. The cavity includes a first pathway for receiving a bit and a second pathway for holding a bit. The first and second pathways intersect to define an open area between the first pathway and the second pathway such that a bit can be rotated between the first pathway and to a locked position in second pathway. The first pathway is disposed at an angle relative to the second pathway. The bit is retained by an interference fit with the body. The holder may be releasably retained in a case using mating structures on the case and holder. In a method for retaining a bit in a holder, the bit is inserted into the holder along the first pathway. The bit is rotated through the open area to position the bit in the second pathway where it is held.
    Type: Application
    Filed: August 6, 2009
    Publication date: February 10, 2011
    Applicant: Irwin Industrial Tool Company
    Inventors: Matthew Steven Larson, Derek James Nash
  • Hole saw blade
    Patent number: D634343
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: March 15, 2011
    Assignee: Irwin Industrial Tool Company
    Inventor: William A. Burke, III
  • Locking pliers jaw
    Patent number: D635427
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: April 5, 2011
    Assignee: Irwin Industrial Tool Company
    Inventors: Thomas M. Chervenak, David P. Engvall, Brett Lucus
  • Locking pliers jaw
    Patent number: D635428
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: April 5, 2011
    Assignee: Irwin Industrial Tool Company
    Inventor: Brett Lucus