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| Number | Title | Issue Date |
| 8113748 | Hole saw and slug remover A hole saw with slug remover including a top cylindrical housing; a bottom cylindrical housing attached to the top cylindrical housing, the bottom cylindrical housing having teeth for cutting; a pilot drill extending through the top cylindrical housing and bottom cy... | 02/14/2012 |
| 7934893 | Quick-change and plug eject arbor for a hole saw Described is a quick-change arbor for a tool, in particular a hole saw (2), the arbor comprising a longitudinal body (3) having a drive end and a tool end, means (6) for attaching the tool which are provided with a central hole allowing a slidin... | 05/03/2011 |
| 7559726 | Drill plug ejection system A drill plug ejection system includes a drill and a drill bit coupled to the drill. The drill rotates the drill bit. A hole saw is mounted on the drill bit and includes a base wall and a perimeter wall that is attached to and extends away from the base wall. The per... | 07/14/2009 |
| 7371034 | Drilling attachment A drilling attachment for use in wet and dry drilling operations includes a housing having first and second fluid conduits, and a drive shaft mounted within the housing and having fluid transmitting first and second end portions in fluid communication with a respect... | 05/13/2008 |
| 7326214 | Bone cutting device having a cutting edge with a non-extending center Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleev... | 02/05/2008 |
| 7326008 | Servo tapping unit with built in shock protection A servo motor in die tapping unit provides built in shock protection for the motor by fixing a shock plate to the servo motor and floatingly mounting the shock plate to a base structure attachable to a stripper plate in a press. Sets of opposing springs allow moveme... | 02/05/2008 |
| 7316690 | Angled driver with depth gauge An angled driver assembly including a rotatable shaft rotatable about a first axis, a rotatable cutting device rotatable about a second axis, the first rotatable portion being coupled to the second rotatable portion, a reference device associated with the rotatable ... | 01/08/2008 |
| 7311481 | Milling cutter Milling cutter (1), which can rotate about a cutter longitudinal axis (A), comprises a sleeve-shaped shaft (2) provided with an inner lying chip evacuation channel (11), which is arranged, in essence, symmetric to the cutter longitudinal axis (A... | 12/25/2007 |
| 7264428 | Hole saw and cutter A hole saw cap for a hole cutter, the cap includes a plate defining a substantially circular peripheral groove and an annular shelf extending radially outwardly from the peripheral groove, the peripheral groove has a recess and a threaded hole extending through a ce... | 09/04/2007 |
| 7214012 | Multi-shaft spindle head of machine tool A multi-shaft spindle head, wherein a plurality of spindles (11) having tools at the tips thereof are disposed in the same direction, the rear ends of cutting fluid feed passages (21a) formed as the inner holes of cutting fluid feed tubes (21... | 05/08/2007 |
| 7189036 | Coring bit A coring bit provides easy core removal by utilizing a series of lateral blades which extend from the top cutting surface to the base of the bit. The lateral blades and inner faces of the coring bit are biased to provide a conical shape to the core thus permitting t... | 03/13/2007 |
| 7175372 | Quick release arbor An arbor system includes an arbor, a clamp body of a power tool, a tightening feature and an optional snap feature. The arbor has a flanging feature, a thread and a number of circumferentially arranged driving pins. The clamp body is sandwiched between the arbor and... | 02/13/2007 |
| 7163070 | Drill head A drill head for use in drilling bores in mines and tunnels has a bit and at least one suction opening (5) for removing drillings and having a crushing profile. ... | 01/16/2007 |
| 7160064 | Hole saw slug removal device The hole saw slug removal device is a device constructed to fit within a hole saw that provides for automatic ejection of waste slugs from within the hole saw. The hole saw slug removal device generally consists of two discs affixed on either end of a compression sp... | 01/09/2007 |
| 7101124 | Hole saw assembly A hole-saw assembly including a hole-saw having at one end a plurality of cutting teeth and at the other end two shafts. The assembly includes a mandrel coaxially aligned with said hole-saw and including a body having two bores therethrough coaxially aligned with sa... | 09/05/2006 |
| 7073797 | Tool holder for annular core bit A tool holder (1) and a shank (8) for quick mounting and dismounting an annular core bit (2) both include cooperating respective guide members (4, 4′) provided at their bit-side ends, flanges (3, 9) arranged coaxially with the gu... | 07/11/2006 |
| 7073992 | Arbor for hole cutter and related method of use 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 o... | 07/11/2006 |
| 7048481 | Cutting fluid device for a spindle of a machine tool A spindle device of a machine tool, which can prevent the liquefaction of atomized cutting fluid in atomized cutting fluid passage downstream of a straightening unit 14, enhance a responsiveness to an ejecting start or stop instruction, and prevent a waste of... | 05/23/2006 |
| 7008149 | Tool kit and method of using A new and improved tool kit and method of using the tool kit for use in making a substantially perpendicular indented surface around an existing threaded bolt hole in a workpiece is disclosed. The kit comprises a guide rod and a grinder drill bit. The guide rod has ... | 03/07/2006 |
| 7000604 | Cutting tool A cutting tool, in particular a tile cutting tool, with a base body, which can be clamped into a tool-holding device of a machine tool and driven to rotate, and with a cutting head that is set with cutting particles, and at least the cutting head and the base body a... | 02/21/2006 |
| 7001119 | Arbor apparatus for rotary tools An arbor apparatus for mounting an attachment to a rotary tool includes a mandrel with a drive stage insertable into a passage in a drive boss such that rotation of the mandrel rotates the boss. The boss has a polygonal drive head engageable with the drive opening o... | 02/21/2006 |
| 7001116 | Workpiece removal device for a hole saw A workpiece removal device 10 for a hole saw 8 includes a positioning member 12 joined to the hole saw 8, a first securing member 14 joined to the positioning member 12, a biasing member 16 having a first end 18 | 02/21/2006 |
| 6976909 | Extended sanding support An extended sanding support tool, consistent with certain embodiments of the present invention has an elongated metal housing having first and second ends. A first bearing is coupled to the housing adjacent the first end and a second bearing is within the housing cl... | 12/20/2005 |
| 6948574 | Ultrasonic annular core bit A core bit for abrasive cutting including a cylindrical tube (3) provided at its end surface with cutting or abrasive bodies (2) and a cover (4) provided at an opposite end surface of the cylindrical tube (3) and secured thereto and havin... | 09/27/2005 |
| 6935325 | Method and apparatus for cutting and polishing stone articles A method for making a stone article includes the steps of providing a block of material having substantially square top and bottom surfaces, impacting the top and bottom surfaces with a non-square blade so as to split off-excess material from the top and bottom surf... | 08/30/2005 |
| 6926474 | Disassemblable drill guide for use in drilling angulated holes A central piece of a drill guide is formed by a pair of opposing boards having elongated slots formed therein. A second pair of boards similar to the first set also has elongated angulated slots formed therein. The slots of the two boards are fitted into each other ... | 08/09/2005 |
| 6857830 | Roof core cutter A roof core-drilling apparatus and drilling guide adapted to be used in combination with a rotary drive means in which the mandrel portion of the roof core-cutter operates not only to mechanically connect the saw body to the drive means for cutting the core, but als... | 02/22/2005 |
| 6705807 | Hole saw and connection method The hole saw assembly provides a structure and method for efficiently and securely connecting a hole saw to an arbor and easily connecting a pilot bit to the arbor. The arbor has a shank opposite the coupling end and a receiving slot proximate to the coupling end. T... | 03/16/2004 |
| 6599063 | Hole saw having efficient slug removal A hole saw having efficient slug removal includes a saw cup, a shank portion, and a location drill. A plurality of cutting teeth are formed on an open end of the saw cup and the shank portion is attached to the other end of the saw cup. The location drill... | 07/29/2003 |
| 6409436 | Plug ejecting hole saw with twist-locking interchangeable saw cups A plug ejecting hole saw includes a cylindrical saw cup provided with front cutting teeth, and an end wall having therethrough a non-circular concentric aperture; and an arbor holder removably attachable to a saw cup that includes a collar slidably holdin... | 06/25/2002 |
| 5934845 | Hole saw with modified pilot and plug biasing A hole saw includes a mandrel having a central pilot drill bit having a tapered shank to facilitate removal of the plug and an annular cutting saw blade. A helical spring is preferred coaxially mounted between the saw blade and the pilot. The spring biase... | 08/10/1999 |
| 5919010 | Apparatus for forming inspection openings in asbestos insulation cladding An evacuated enclosure is provided around a circular cutter to collect the cutting dust produced while forming inspection apertures in insulation cladding. The enclosure includes an upper and lower coaxial chamber, the upper chamber provided with an air p... | 07/06/1999 |
| 5816752 | Knock out device A slug removal system for a hole saw including a spring and a knock-out device are disclosed. The knock-out device has a bore longitudinally through its center to allow a drill bit, which acts as a guide for the hole saw, to pass therethrough. The knock-o... | 10/06/1998 |
| 5813802 | Drilling tool assembly and its center drill and cup shape drill A center drill used for machining a hole in a work piece which is adapted to be partially enclosed in a cup shape drill member in a side view thereof, includes a drill portion provided on a leading end of the center drill, and a dust extractor radially ou... | 09/29/1998 |
| 5715735 | Workpiece ejector A workpiece ejector has an air actuator mounted within a lathe spindle for rotation therewith. The ejector actuator is controlled to extend its piston and piston rod to eject a workpiece from the lathe collet. A removable ejector nosepiece may be connecte... | 02/10/1998 |
| 5632577 | Drill for drilling rails and track rigs for railroad applications Drill for drilling rails and track rigs, in railroad applications, including a body which supports a motor driving a drilling tool through a reduction unit. Elements are provided for the translatory motion of the drilling tool with respect to the body. Th... | 05/27/1997 |
| 5435672 | Hole saw having plug ejection feature A hole saw having plug ejection feature. Using the arbor and arbor nut of the present invention, the arbor of an ordinary commercially available hole saw is replaced, the arbor nut of the present invention being threaded into the hole saw cup axial thread... | 07/25/1995 |
| 5226762 | Sealed hole-saw arbor A sealed, quick-disconnect, hole-saw arbor is disclosed for affixing a hole saw to a drill. The arbor enables a standard hole saw to be firmly "snugged up" to a shoulder on the arbor, and then rotated without being "backed off" the shoulder, in order to a... | 07/13/1993 |
| 5141368 | Automated side-drilled device and method for catheters A device and method are provided for side-drilling of catheters. The method comprises storing side-drilling hole patterns, selecting a side-drilling hole pattern, positioning the catheter at successive locations defined by the pattern, and drilling holes ... | 08/25/1992 |
| 5096341 | Hole saw and drive A hole saw and drive includes a cup-shaped saw body having a closed end and a plurality of cutting teeth. A left-hand threaded collar is secured to the closed end and defines one or more drive tabs extending into the saw body interior. A left-hand threade... | 03/17/1992 |
