| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 408227000 |
Having peripherally spaced cutting edges
| 122 |
| 408204000 |
Having axial, core-receiving central portion
| 77 |
| 408200000 |
With work-engaging structure detachable from cutting edge
| 50 |
| 408223000 |
Having stepped cutting edges
| 37 |
| 408226000 |
Including detailed shank
| 32 |
| 408215000 |
With pitch-stabilizing ridge
| 20 |
| 408207000 |
Having product-receiving chamber
| 8 |
| 408213000 |
Having axially extending peripheral cutting spur
| 7 |
| 408214000 |
Having central lead-screw
| 6 |
| 408203500 |
Hollow milling tool
| 6 |
| 408211000 |
Having inversely angled cutting edge | 3 |
| 20080219790 | CONDUIT REAMER TOOL ELEMENT - A conduit reamer for a cutting tool includes a generally cylindrical body having a longitudinal axis and a blade coupled to the generally cylindrical body. The blade includes a first blade portion defining a first height of the conduit reamer with respect to the longitudinal axis and a second blade portion defining a second height of the conduit reamer with respect to the longitudinal axis, wherein the first height is different than the second height. The conduit reamer further includes a shank end having a shank configured to be received and driven by the cutting tool, a bit end opposite the shank end and having a cavity configured to receive a tool bit, and a locking mechanism positioned proximate the bit end and configured to secure the tool bit within the cavity. | 09-11-2008 |
| 20090097930 | REAMING APPARATUS - Tubing reaming apparatus comprises a housing adapted to be mounted to tubing to be reamed. The housing provides mounting for a reamer shaft adapted to mount a cutter within the tubing. The housing also provides mounting for a drive arrangement. A gear arrangement is provided between the drive arrangement and the reamer shaft. The housing may comprise a clamping arrangement adapted to reduce residual bend and ovality of the tubing. | 04-16-2009 |
| 20090269155 | Alignment Structure for a Wood Flat Drill Bit - An alignment structure for a wood flat drill bit comprises a flat drill bit and a connecting assembly. The drill bit has a flat drilling end and the other end of the drill bit is provided for positioning the connecting assembly. The connecting assembly and the flat drill bit are formed with conical portions for abutting against each other. Hence, the flat drill bit can be automatically aligned by abutting the conical portion of the flat drill bit against that of the connecting assembly. | 10-29-2009 |
| 408210000 |
Helical ribbon tool | 1 |
| 20130266388 | Anchor Installation Tool - An anchor installation tool has an elongated driving member with a body portion and a head portion. A retaining mechanism retains the anchor installation to the drill bit. The mechanism has a housing on the body portion with a pair of bias lugs that project through the body portion to contact the drill bit. An anchor guide slides on the body and head portion and has a holding member to hold an anchor. The anchor is held in the anchor guide and a drill bit is inserted into the driving member. Axial movement of the drill bit is transferred into axial movement of the driving member. The movement strikes the anchor and ejects the anchor from the anchor guide into a surface. | 10-10-2013 |
| Entries |
| Document | Title | Date |
|---|
| 20090003948 | EJECTOR DRILL SYSTEM - A drilling head for a tubular shank having an inside diameter and threads may comprise an axial body comprising a duct exiting through a first end; threads adjacent the first end corresponding to the threads on the shank and aligning the duct with the shank inside diameter; a bore from an outer surface of the body to the duct; and two axially extending approximately parallel and offset surfaces adjacent a second end; and an insert affixed between the offset surfaces, the insert comprising: a first face at least partially contacting one offset surface and a second face at least partially contacting the other offset surface; one or more cutting edges adjacent the first face, the second face, or both; and a cutting lip adjacent one or more cutting edges. | 01-01-2009 |
| 20090257839 | COATING METHOD FOR DRILL BITS - A method for film-coating drill bits comprises the steps of: providing a core drill bit; cleaning and further heating the core drill bit; forming an adherent film on the core drill bit; forming a mixing film on the adherent film; and forming a non-crystalline diamond-like film on the mixing film. The finish film-coated drill bit comprises an inner adherence film, a middle mixing film and an outer non-crystalline diamond-like carbon (DLC) film. The mixing film is composed of a non-crystalline diamond-like material and compositions of the adherence film. In the mixing film, the composition of the non-crystalline diamond-like material is higher in a position close to the DLC film. | 10-15-2009 |
| 20100003096 | RING-ROLLING BEARING WITH AXIAL DISPLACEMENT AND SHAPING TOOLING EQUIPPED WITH SUCH A BEARING - The invention relates to a rolling bearing ( | 01-07-2010 |
| 20100008738 | FIBER-CONTAINING SINTERED CUTTING TOOLS - Fibers for diamond-impregnated cutting tools and their associated methods for manufacture and use are described. A matrix is formed that contains fibers made from carbon, glass, ceramic, polymer, and the like. The matrix is then sintered to form a cutting portion of a drill bit. The type and concentration of the fibers can be modified to control the tensile strength and the erosion rate of the matrix to optimize the cutting performance of the tools. Additionally, the fibers may be added to the cutting section to weaken the structure and allow higher modulus binders to be used for the cutting tools at a lower cost, allowing the amount of fibers to be tailored to retain the diamonds in the cutting portion for the desired amount. As the cutting portion erodes, the fibers may also increase the lubricity at the face of the cutting portion. | 01-14-2010 |
| 20100092255 | CONTROLLED SPARK PLUG ORIENTATION - A spark plug orientation method may include forming a spark plug housing by advancing a tool a first distance in a first axial direction into a spark plug bore to create a spark plug seat using a seat forming portion of the tool. The tool may be displaced a second distance in a second axial direction generally opposite the first axial direction to provide a predetermined axial orientation between the thread forming portion of the tool and the spark plug seat. The spark plug bore may be engaged at a first predetermined rotational position and the tool may be displaced in an orbital motion and in the second axial direction at a predetermined rate to form a threading on the spark plug bore providing a starting point of the threading at a second predetermined rotational position proximate the spark plug seat. | 04-15-2010 |
| 20100278604 | CASTING OF TUNGSTEN CARBIDE MATRIX BIT HEADS AND HEATING BIT HEAD PORTIONS WITH MICROWAVE RADIATION - A method of making a drill bit having the following steps: placing matrix material in a bit body mold; placing a metal blank in the bit body mold; placing a binder material in the bit body mold with the binder material proximate the matrix material and the metal blank; and exposing hinder material to microwave radiation, whereby hinder material and other constituents is heated to a selected temperature to allow hinder material to melt and to infiltrate matrix material. A method of heating selected portions of a drill bit comprising: placing the drill bit in an insulative oven having a wave guide of microwave radiation from a microwave generator; positioning a portion of the drill bit to be heated proximate the wave guide; and exposing the portion of the drill bit to be heated to microwave radiation, wherein the portion of the drill bit is heated without overheating remaining portions of the drill bit. | 11-04-2010 |
| 20110135414 | Method of increasing the fracture toughness of the outer layer of a carbide cutting bit of a drill - A method of increasing fracture toughness of an outer layer of a carbide cutting bit of a drill for impact drilling of hard materials, preferably of rock or concrete. The invention is characterized by combination of the following steps:
| 06-09-2011 |
| 20110243674 | CUTTING TOOL FOR BORING - A cutting tool for boring including a cutting insert fixed at a front end of a bar-shaped holder. The holder includes a cutting surface-sided chip pocket that is concave with respect to the outer circumferential surface of the holder, the cutting edge end of the cutting insert protruding from the outer circumferential surface of the holder, and the cutting surface-sided chip pocket having a bottom surface facing the portion of outer circumferential surface where the cutting edge overhangs. Further, an cutting edge-sided chip pocket is formed at the portion of outer circumferential surface where the cutting edge overhangs such that the edge of the portion of outer circumferential surface where the cutting edge overhangs is concave with respect to the outer circumferential surface of the holder, on the bottom of the cutting surface-sided chip pocket when viewed from the cutting surface. | 10-06-2011 |
| 20110268521 | MACHINE TOOL WITH FLOATING CARRIER DEVICE - A machine tool is provided, comprising a machine frame, at least one carrier device for a tool or a workpiece by means of which a tool acting on a workpiece or a workpiece being acted upon by a tool is held during the machining of a workpiece, and a holding device holding the at least one carrier device in a non-movable or movable manner relative to the machine frame, wherein a bearing device is provided by means of which the at least one carrier device is mounted in a floating manner on the holding device with displaceability in a direction of displacement along a displacement path, and wherein an adjusting device is provided by means of which the position of the at least one carrier device along the displacement path can be adjusted and fixed. | 11-03-2011 |
| 20120107063 | THREAD FORMING TAP - A thread forming tap has a full thread portion and a leading portion contiguous with the full thread portion and reducing in diameter toward its tip. The full thread and leading portions are provided with external thread on which lobes and recesses are alternately formed. When δ represents an angle around a tool center line toward a thread forming side, the shape of the lobe varies along a quadratic curve relative to angle δ so that relief amount increases toward inflection point angle θ. However, in a rough plastic deformation section where angle δ is greater than inflection point angle θ and exceeds the working region, the shape varies along an Archimedean curve with clearance angle α1 so that the relief amount increases linearly relative to angle δ, and a margin section is substantially zero or within a range where angle δ is less than or equal to 1°. | 05-03-2012 |
| 20120121350 | DRILL HAVING MULTIPLE FLANKS - A drill capable of suppressing inter-layer peeling (delamination) while keeping hole diameter accuracy even if the number of holed to be worked increases is provided. The drill includes a first flank which has a ridge line forming a cutting edge, a second flank which is adjacent to the first flank and has a ridge line forming a land portion, and a third flank which is adjacent to the first flank and has a ridge line forming a chisel edge. The drill further includes a fourth flank which is surrounded by a ridge line forming the first flank, a ridge line forming the third flank, and a trough line forming the second flank | 05-17-2012 |
| 20120237307 | BORING TOOL - Provided is a boring tool which not only is lightweight but also has both abrasion resistance and high stiffness. More specifically, provided is a boring tool wherein a shaft-like tool body ( | 09-20-2012 |
| 20120301238 | Chisels - A point chisel includes a substantially cylindrical shank and a working end region that tapers to a point. The working end region has at least three converging substantially planar surfaces, each with a protruding elongate rib extending along at least part of its length. Adjacent surfaces meet along at least part of their length at substantially straight edges between adjacent ribs. A flat chisel includes a substantially cylindrical shank and a working end region with a pair of converging substantially planar surfaces that include a plurality of protruding elongate ribs extending along at least part of its length. Each rib has, along the majority of its length, a substantially constant height above the surface from which it protrudes. Each chisel is made from steel, with the shank having a bainitic microstructure and the working end region having a martensitic microstructure. | 11-29-2012 |
| 20140003876 | Handheld drill/driver device | 01-02-2014 |
| 20140003877 | DRILL | 01-02-2014 |
| 20140030038 | HOLE-MAKING TOOL - A hole-making tool includes a body having a seat, which is delimited by a tangential support surface, an axial support surface, and a radial support surface. A cutting insert is fixed in the seat. A pair of female- and male-like securing means is arranged in the interface between the tangential support surface of the seat and the underside of the cutting insert. The female-like securing means includes a guide surface. The male-like securing means is spaced from the guide surface to form a gap between the securing means when the cutting insert is pressed against the axial and radial support surfaces. If the feeding direction of the tool is reversed, the cutting insert may become detached from the seat and the securing means is activated to direct the cutting insert inward toward the radial support surface to prevent the peripheral portion of the cutting insert from scratching the generated hole. | 01-30-2014 |
| 20140286719 | CUTTING INSERT WITH A LINEAR AND A CONCAVE CUTTING EDGE PORTION - A cutting insert includes a top face, a bottom face and a plurality of side walls extending between the top face and the bottom face. A peripheral cutting edge is defined at the juncture of each side wall and the top face. Each cutting edge includes a linear cutting edge portion and a concave cutting edge portion that curves inwardly in a plane that is perpendicular to a plane containing a central axis of the cutting insert. A radiused corner portion connects two adjacent cutting edges. Each linear cutting edge portion extends from one radiused corner portion to the concave cutting edge portion and the concave cutting edge portion extends from the linear cutting edge portion to another radiused corner portion. | 09-25-2014 |
| 20150016908 | DRILL BLANK, METHOD FOR MANUFACTURING DRILL BLANK, DRILL, AND METHOD FOR MANUFACTURING DRILL - Provided are a drill blank, a method for manufacturing a blank, a drill, and a method for manufacturing a drill which allow a step of brazing to be easy and allow the brazing to be precise. | 01-15-2015 |
| 20150147128 | Coupling Device and Cutting Tool - A coupling device couples a first member and a second member. The coupling device includes: two protruding portions provided on the first member; a through hole formed to pass through the second member; two reception holes provided in the second member and each formed to connect to the through hole; and a fixing member having a first pressing portion and a second pressing portion. The fixing member is configured to, when being disposed in the through hole, change a distance between the first pressing portion and the second pressing portion due to application of a force to one end portion of the fixing member. The first pressing portion and the second pressing portion are formed to exert a fixing force on either corresponding one of the two protruding portions received in the two reception holes. | 05-28-2015 |
| 20150336182 | DRILL AND METHOD OF MANUFACTURING DRILL - According to one implementation, a drill has at least one cutting edge. A projected shape of a passing area of a ridgeline of the at least one cutting edge when the at least one cutting edge is rotated around a tool axis becomes a line-symmetric and discontinuous line along a parabola, two parabolas, an ellipse or two ellipses. The projected shape is drawn on a projection plane parallel to the tool axis. | 11-26-2015 |
| 20160144437 | CUTTING TOOL AND METHOD FOR PRODUCING A CUTTING TOOL - The cutting tool ( | 05-26-2016 |
| 20160375499 | ROTARY TOOL, IN PARTICULAR A DRILL FOR SUCH A ROTARY TOOL - The rotary tool comprises a support and a cutting head which can be inserted into a pin receptacle of the support via a coupling pin. The support and the cutting head have mutually corresponding surface sections for transferring a radial clamping force and have mutually corresponding torque sections for transferring torque. For an axial pull-out stop device, effective stop surfaces are formed on the pin receptacle and on the coupling pin in the axial direction, wherein, to do this, a stop element is formed, the radial extension of which is smaller than or equal to a radial extension (r | 12-29-2016 |
| 20170232531 | METHOD FOR RELOADING A SINGLE-FLUTE DRILL, AND SINGLE-FLUTE DRILL | 08-17-2017 |
