| IRWIN INDUSTRIAL TOOL COMPANY Patent applications |
| Patent application number | Title | Published |
|---|
| 20120055031 | CUTTING EDGE FOR A CUTTING TOOL - A cutting tool comprises a first cutting edge and a second cutting edge where the cutting edges are movable into engagement with one another. At least one of the cutting edges comprises an edge tip extending along at least a portion of the cutting edge. The edge tip has a curved outer surface that in cross-section is bounded by a first line defined by the equation y=74x | 03-08-2012 |
| 20120055030 | CUTTING EDGE FOR A CUTTING TOOL - A cutting tool comprises a first cutting edge and a second cutting edge movable into engagement with one another. The first cutting edge comprises an edge tip extending along at least a portion of the cutting edge. The edge tip has a geometry that lowers the cutting force required to cut hard articles and minimizes damage to the cutting edge. The edge tip has a flat end face defining a first edge and a second edge. A first side face extends from the first edge and a second side face extends from the second edge where the first side face and the second side face extend at an angle relative to one another such that the first side face and the second side face diverge as they extend away from the flat end face. | 03-08-2012 |
| 20120042523 | Utility Knife - A utility knife comprises a blade carrier movable between retracted, extended and positions. A latch is movable with the blade carrier for locking the blade carrier in position. The blade carrier comprises a locking tab movable between a first position where the locking tab is engaged with the blade and a second position where the locking tab is released from the blade. An actuator moves the locking tab from the first position to the second position when the blade carrier is in the intermediate position and the actuator is moved to the unlocked position. The latch is engageable with a holder when the blade carrier is in the intermediate position. A retention member holds the blade on the plate where the retention member cannot be inserted into a notch on the blade. A blade guide guides the blade between the retention member and the plate. | 02-23-2012 |
| 20120042522 | Utility Knife - A utility knife comprises a first housing portion carrying a strike plate and a second housing portion movable relative to the first housing portion between a closed position and an open position. The second housing portion carries a locking member. An overlapping locking mechanism locks the first housing portion to the second housing portion in a first direction when the first housing portion is moved relative to the second housing portion in a second direction. The locking member is movable between a first position in which it engages the strike plate to prevent the first housing from moving relative to the second housing in the first direction and a second position in which it does not engage the strike plate and allows the first housing to move relative to the second housing in the first direction. | 02-23-2012 |
| 20120042521 | Utility Knife - A utility knife comprises a first housing portion carrying a strike plate and a second housing portion carrying a sliding nut assembly comprising a rotatable screw and a sliding nut. The sliding nut engages the strike plate upon rotation of the screw to draw the first housing portion toward the second housing portion. | 02-23-2012 |
| 20110259149 | METHOD AND APPARATUS FOR A CUTTING TOOL - A method of making a cutting tool comprises providing a lever with a jaw having a cutting edge and a body arranged such that the cutting edge is offset from the body; providing a rotary cutting tool with an edge profile that may be complex and/or non-planar to form a complementary edge profile geometry on the cutting edge by moving the edge profile geometry of the rotary cutting tool along the length of the cutting edge. | 10-27-2011 |
| 20110258860 | OPTIMIZED MECHANICAL ADVANTAGE CUTTING TOOL - A cutting tool and method comprises a first lever having a first jaw at one end. A second lever is connected to the first lever at a first pivot where the second lever has a second jaw that is opposed to the first jaw. A third lever is connected to the first lever at a second pivot and connected to the second lever at a third pivot such that relative movement of the third lever relative to the first lever between an open position and a closed position defines a stroke of the tool that corresponds to movement of the hand contact points on the levers toward one another. The third pivot comprises a pin engaging a cam surface where the cam surface has a shape such that the mechanical advantage may increase and decrease through the stroke of the tool and may be variable through the stroke of the jaws. | 10-27-2011 |
| 20110203421 | LOCKING PLIERS - A locking tool is provided that comprises an adjustment mechanism that can adjust the distance between the jaws, and the clamping force exerted by the jaws on a workpiece, using the same hand that grips the handles of the tool. A locking tool is also provided where the tool can be locked by moving the handles toward one another. Once locked, the pliers can be unlocked and the jaws opened by squeezing the handles toward one another in the same manner, in the same direction and using the same hand as was done to lock the pliers. As a result the pliers can be locked and unlocked using one-hand and using the same hand movement to both lock and unlock the pliers. | 08-25-2011 |
| 20110170972 | COATED HOLE CUTTER - 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. | 07-14-2011 |
| 20110170971 | Hole Cutter With Chip Egress Aperture - 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. | 07-14-2011 |
| 20110170970 | Hole Cutter With Minimum Tooth Pitch to Blade Body Thickness Ratio - 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. | 07-14-2011 |
| 20110170969 | Hole Cutter with Axially-Elongated Aperture Defining Multiple Fulcrums - 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. | 07-14-2011 |
| 20110170965 | HOLE CUTTER WITH EXTRUDED CAP - 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. | 07-14-2011 |
| 20110150588 | SPADE BIT - 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. | 06-23-2011 |
| 20110053103 | Torch - 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. | 03-03-2011 |
| 20110031145 | BIT HOLDER - 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. | 02-10-2011 |
| 20100221077 | TAP WITH CHIP BREAKING CHAMFER - The tap comprises a shank portion and a threaded portion connected to the shank portion. The threaded portion includes a plurality of lands separated by flutes where each of the lands has threads formed thereon. Each of the plurality of lands including a chamfer formed at an end thereof where the chamfer is formed with a cutting edge and a heel edge. The cutting edge is formed with a first positive relief angle and the heel edge is formed with a second positive relief angle. | 09-02-2010 |
| 20100219594 | QUICK CHANGE TOOL BIT HOLDER - The quick change tool bit holder comprises a bore for receiving a bit. A retaining tooth, or plurality of teeth, is movable into engagement with the bit when the bit is inserted into the bore to retain the bit in the bore. An ejector ejects the bit from the bore when the retaining tooth is moved out of engagement with the bit. The ejector may comprise a spring that is compressed when the bit is inserted in the bore and a push button is biased by the spring into engagement with the bit. A sleeve forces the retaining tooth into engagement with the bit when said sleeve is in the locking position where the tooth moves at an angle relative to a longitudinal axis into contact with the bit. A method of operating the quick change tool bit holder is also disclosed. | 09-02-2010 |
| 20100218648 | LOCKING PLIERS WITH ONE-HAND ADJUSTMENT - A locking pliers comprises a fixed assembly comprising a first handle and a first jaw. A second jaw is movable relative to the first jaw. A second handle moves relative to the first handle to move the second jaw. A toggle-link locking mechanism locks the second jaw in the closed, locked position. An adjusting screw is provided for adjusting the geometry of the locking mechanism to thereby adjust the jaw spacing and the force exerted by the jaws is provided. The adjusting screw includes a wheel that can be rotated by running the wheel along an object. In another embodiment the adjusting screw includes a sleeve that extends partially over the fixed assembly such that it can be manipulated by the same hand that holds the locking pliers. | 09-02-2010 |
| 20100192734 | SELF-ADJUSTING LOCKING PLIERS - The self-adjusting locking pliers include a fixed assembly having a fixed jaw supported at one end. A moveable jaw is pivotably supported on the fixed assembly at a slidable pivot connection. The slidable pivot connection includes a pawl provided with teeth. A rack of teeth includes first and second sets of teeth offset from one another by ½ of the pitch that may each be engaged by the teeth formed on pawl. A lever is attached to the fixed assembly and a linkage transmits a force applied to the lever to the jaws and locks the jaws in the clamping position. The linkage allows the angle between the links to be preset to thereby control the clamping force applied to the work piece. The movable jaw is selectively attached to the linkage in one of two positions such that the jaw span may be adjusted without affecting the geometry of the linkage. | 08-05-2010 |
| 20100154603 | WRENCH - A wrench comprises a handle connected to a housing. A socket is rotatably supported in the housing for ratcheting movement relative to the housing. A retaining member releasably secures a device in the socket. A retainer is supported on the housing and is movable between a first position and a second position. The retainer, when in the first position, at least partially overlays the socket. A plurality of guides orient a member relative to the socket. The guides are mounted in a rotatable body. A first handle is permanently connected to the housing and a second handle is removably connected to the housing. | 06-24-2010 |
| 20100108400 | HARD METAL PLATE FOR ROCK DRILL AND ROCK DRILL - 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. | 05-06-2010 |
| 20100104387 | SPADE BIT - 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. | 04-29-2010 |
| 20100084798 | CLAMPING AND OR SPREADING TOOL - A clamping and/or spreading tool comprises a drive for displacement of a push or pull rod to which a movable jaw is fixed with respect to a support carrying a stationary jaw in longitudinal direction of the push and pull rod, said drive comprising a torsion spring and being adapted to enter torque transmitting engagement with the push or pull rod for displacement of the same. | 04-08-2010 |
| 20100072093 | PACKAGE FOR A SAW BLADE - A package for a saw blade comprises a housing defining a space for receiving a saw blade. A first cover is attached to the housing at a hinge, and is pivoted at the hinge so as to overlay the saw blade and retain the saw blade in the housing. The cover is dimensioned to extend over less than the entire saw blade. A compartment may be attached to the housing where a security device is located in the compartment. A second cover seals the security element in the compartment. A second cover may be attached to the housing at a second hinge, and pivoted at the second hinge so as to overlay the saw blade and retain the saw blade in the housing. The second cover is dimensioned so as to extend over less than the entire saw blade. | 03-25-2010 |
| 20100018364 | QUICK ADJUSTING MULTI-POSITION PLIERS - A first member defines an aperture between the jaw and the handle that is defined by a first side wall and a second side wall where the first side wall, second side wall and handle may be integrally formed as a unitary piece. The jaws may also be formed integrally with the handle and side walls. The second member includes an elongated slot and a row of teeth. A pivot member extends along the axis of rotation and includes a tooth engageable with the row of teeth. The pivot member moves between a first position where the teeth are engaged and movement of the first jaw away from the second jaw is prevented and a second position where the teeth are disengaged and movement of the first jaw away from the second jaw is permitted. | 01-28-2010 |
| 20100018363 | LOCKING PLIERS - A lockable pliers comprises a fixed assembly comprising a first handle supporting a first jaw. A second jaw is movable relative to the first jaw between an open position and a closed, locked position. A second handle is movable relative to the first handle and is connected to the second jaw at a fixed pivot. A toggle-link locking mechanism locks the second jaw in the closed, locked position. A movable pivot connects the second jaw to the fixed assembly such that the second jaw can move relative to the fixed assembly when the second jaw is in the closed, locked position and a torque is applied to the pliers. | 01-28-2010 |
| 20100018362 | LOCKING PLIERS - A lockable pliers comprises a fixed assembly comprising a first handle supporting a first jaw. A second jaw is movable relative to the first jaw between an open position and a closed, locked position. A second handle is movable relative to the first handle and is connected to the second jaw at a fixed pivot. A locking mechanism locks the jaws in the closed, locked position. A movable gripping member can move relative to the jaws when the jaws are in the closed, locked position and a torque is applied to the pliers. | 01-28-2010 |
| 20100018361 | LOCKING PLIERS - The pliers comprise a fixed assembly and a second jaw movable relative to the first jaw between an open position and a closed, locked position. A movable pivot connects the second jaw to the fixed assembly such that the movable pivot can move relative to the fixed assembly when the second jaw is in the closed, locked position and a torque is applied to the pliers. The second jaw is configured such that a resultant force on the second jaw is inside of the fixed pivot, between the fixed pivot and the movable pivot. | 01-28-2010 |
| 20100013136 | CLAMP WITH A SWIVELING JAW - A jaw assembly for a clamp is provided that comprises a jaw body having a jaw rotatably mounted on the jaw body. A locking member is movable between a first position where the jaw is locked relative to the jaw body and a second position where the jaw is unlocked relative to the jaw body such that it can rotate relative thereto. A clamp is also provided that incorporates the jaw assembly. In the unlocked position the jaw can pivot such that it can orient itself relative to the workpiece and in the locked position the jaw is fixed such that it can clamp the edges of a workpiece. A method of operating a clamp is also set forth. | 01-21-2010 |
| 20100013133 | CLAMP WITH A SUPPORT - A clamp comprising a bar supporting a movable jaw having a first support surface. The bar is slidably received in a jaw body and the jaw body supports a fixed jaw. A support is slidably disposed on the bar and has a second support surface that is coplanar with the first support surface such that the clamp can be supported on the first support surface and the second support surface on a surface. In one method of operating the clamp a work piece is positioned directly on the bar. In another method of operating the clamp the movable jaw is moved relative to the fixed jaw and is stopped by the engagement of the support with the body. | 01-21-2010 |
| 20100011599 | CHALK LINE - The chalk line comprises a housing that supports the spool having a string or line wound thereon in a chalk chamber. The transmission for rewinding the spool is located in a separate compartment. The chalk filled chamber is isolated from the transmission such that the components located in the chamber are the spool, line and chalk. A door for allowing access to the chamber is opened by manually operating a latch. A safety interlock is also provided such that the latch cannot be inadvertently unlocked. | 01-21-2010 |
| 20100003094 | DRILL BIT - A cutting head is formed at one end of the shank and comprises a cylindrical member having an annular wall defining a circular cutting edge. A cutting blade having a sharp cutting edge extends from adjacent a centering point to adjacent the cutting edge. The cutting head is formed of a first material and the cutting blade is formed of a second material. The cutting blade is brazed to the cutting head. A method of making a drill bit comprises investment casting a shank and a cutting head of a first material. A pocket is formed that extends to the cutting edge. A coupon of a second material is brazed in the pocket. A sharp edge is ground in the coupon. | 01-07-2010 |
| 20090308209 | FLEXIBLE THREADING SYSTEM - A wrench has a socket defined by a plurality of flat faces and a handle. A first threading tool is provided having a shape and dimension to fit into the socket. An adapter that retains a second threading tool includes a connector having the same shape and the dimension as the first threading tool that fits into the socket. A retaining member is rotatably mounted to the body for movement between a first position and a second position for locking the adapter and the die in the socket. The retaining member has a second plurality of flat faces defining an opening where the second plurality of faces are coextensive with the faces of the socket when the retaining member is in the first position and are offset from the faces of the socket when the retaining member is in the second position. | 12-17-2009 |
| 20090278643 | MAGNET ASSEMBLY - A magnet assembly is provided including a housing having a first end and a second end. A magnet is placed within a recess formed in the first end of the housing and a spring is positioned in at least a portion of the second end of the housing. A method of mounting a magnet assembly in a tool is provided. The method includes providing a magnet assembly including a housing having a recess formed in a first end of the housing and a spring positioned in a second end of the housing. The method further includes placing the magnet assembly into an opening defined in a tool and placing a magnet into the recess, and pressing the magnet against the spring to position the magnet within the tool. | 11-12-2009 |
| 20090261005 | PACKAGE FOR A SAW BLADE OR SIMILAR PRODUCT - A package is provided for a saw blade that includes a paperboard back secured to a transparent plastic front. The plastic front includes an edge border that is reinforced to support the weight of the saw blade and that may extend over the edge of the paperboard back for the periphery thereof. The plastic front includes a pocket for receiving the blade where the pocket is provided with projections for engaging the blade to keep the blade from moving once inside the package. A peg is also provided in the plastic cover that engages a portion of the saw blade to ensure that the saw blade is properly oriented in the package during the packaging process. A portion of the back is not adhered to the plastic front to provide an easy opening access between the plastic front and the paperboard back. | 10-22-2009 |
| 20090208302 | MULTI-BLADE SELF FEED BIT - The self feeding drill bit comprises a shank that has one end adapted to be connected to a chuck of a rotary tool. The opposite end of the shank supports a cutting head having a series of teeth formed on the edge thereof for cutting the periphery of the hole. A screw tip may be provided for feeding the bit into and through the wood. A plurality of cutting blades is provided for boring the interior of the hole. The cutting blades define a plurality of cutting edges that are disposed at different angles to a plane perpendicular to the axis of rotation. | 08-20-2009 |
| 20090208300 | SELF FEED BIT - The self feeding drill bit comprises a shank that has one end adapted to be connected to a chuck of a rotary tool such as a drill or power driver. The opposite end of the shank supports a cutting member where the cutting member is a cup shaped member having a series of teeth formed on the edge thereof. A screw tip is provided for feeding the cutting member into and through the wood. A removable cutting blade is provided for boring the interior of the hole. A kit including a self feed bit and a plurality of replacement bits is also provided. | 08-20-2009 |
| 20090191977 | SELF ALIGNING DIE - The die has a bore that is generally sized to fit onto a like-sized stud. Threads are formed on the interior of the bore for cutting the threads on the stud. The die includes an integrated alignment mechanism to ensure that the die is aligned with respect to the stud as the die is rotated onto the stud. | 07-30-2009 |
| 20090094846 | MAGNET ASSEMBLY - A magnet assembly is provided including a housing having a first end and a second end. A magnet is placed within a recess formed in the first end of the housing and a spring is positioned in at least a portion of the second end of the housing. A method of mounting a magnet assembly in a tool is provided. The method includes providing a magnet assembly including a housing having a recess formed in a first end of the housing and a spring positioned in a second end of the housing. The method further includes placing the magnet assembly into an opening defined in a tool and placing a magnet into the recess, and pressing the magnet against the spring to position the magnet within the tool. | 04-16-2009 |
| 20090092939 | TORCH AND CANISTER - A fuel canister is provided comprising a vessel for containing a fuel. A fitment is located in a wall of the vessel and a gripping portion is located in another wall of the vessel. The gripping portion may include a rib formed by raised and recessed areas. The rib may also reinforce the wall of the canister. A torch is also provided comprising a torch body that is releasably connected to the fuel canister. A method of making a fuel canister is also provided comprising forming a vessel having a top wall and a side wall. The bottom wall is formed having at least one portion defining a flat or nearly flat surface. The bottom wall is welded or brazed to the side wall. External ribs may be formed in the bottom wall. | 04-09-2009 |
| 20080282561 | LASER REFERENCE DEVICE - The laser reference tool of the invention consists of a base that can be releasably mounted to a surface. A housing is mounted on the base such that it can be repositioned relative to the base in a direction parallel to the surface. A turret carrying the laser module is rotatable about first and second orthogonal axes. The laser module is also rotatable relative to the turret about a third axis orthogonal to the first and second axes. | 11-20-2008 |
| 20080279647 | SPADE BIT - 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. | 11-13-2008 |
| 20080256808 | SLIDE ASSEMBLY DEVICE FOR A SNAP-OFF BLADE UTILITY KNIFE - A utility knife includes a body having a groove adapted to receive a blade. The groove has a plurality of tabs defined on at least a first side. The utility knife also includes a slide assembly device positioned in the body for sliding movement with respect to the body. The slide assembly device includes a housing with a first engaging member having a first protrusion and a second engaging member having a second protrusion releasably engaged with the tabs. The slide assembly device also includes a rocker attached to the housing that is operatively connected to at least one of the engaging members. The rocker is operable for disengaging the first protrusion or second protrusion with respect to the tabs. Disengaging one of the first and second protrusions by the rocker allows sliding movement of the slide assembly device with respect to the body. | 10-23-2008 |
