Including Detailed Shank Patents (Class 408/226)
  • Patent number: 10265781
    Abstract: The invention relates to a single-lip deep hole drill comprising a drill head, wherein the drill head has a drill diameter, a blade and a channel for chip removal, wherein the blade extends outwards from a rotational axis up to the perimeter of the drill head, wherein the blade has a cutting surface and wherein the channel is bordered by a chip forming surface, wherein the chip forming surface has two sections such that a first section of the chip forming surface extends in the radial direction from the rotational axis up to a first diameter, a second section of the chip forming surface connects to the first section in the radial direction, the first section is positioned above the cutting surface, and the second section is positioned nearer to the cutting surface than the first section.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: April 23, 2019
    Assignee: botek Praezisionsbohrtechnik GmbH
    Inventor: Juergen Deeg
  • Patent number: 10220501
    Abstract: A pocket door repair tool for removing a pocket door track and installing a new pocket door track including an illuminated powered screwdriver having a pivotable drill bit.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: March 5, 2019
    Inventor: George P. Davidson
  • Patent number: 10099298
    Abstract: The present disclosure relates to a cutting insert and an indexable drill. The cutting insert and the indexable drill according to the present disclosure are configured such that when the cutting insert is mounted on the indexable drill, the cutting insert is easily inserted into the indexable drill at the initial time, and strong coupling force is implemented between the indexable drill and the cutting insert at a point of time at which the cutting insert is completely mounted. In addition, the cutting insert, according to the present disclosure, has excellent rigidity, when compared to cutting inserts in the related art that perform identical/similar cutting processing, since a portion, which is weak in rigidity, is provided as a thick portion.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: October 16, 2018
    Assignee: KORLOY INC
    Inventors: Hong Seung Son, Chan Kyu Park, Hyo Joon Lim, Sung Hyun Kim, Sun Yong Ahn, Young Heum Kim
  • Patent number: 10080579
    Abstract: A surgical cutting tool includes an elongated shaft and a cutting head. The shaft defines a coupling portion terminating at a proximal end of the shaft, a stem portion, and a distal portion. The stem portion defines a central axis. The coupling portion optionally defines a deflection surface positioned oblique with respect to the central axis and connected with a first driven surface and a second driven surface. Upon insertion into a drive chuck, the deflection surface promotes self-alignment of the cutting tool and the drive chuck.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: September 25, 2018
    Assignee: Medtronic PS Medical, Inc.
    Inventors: Paul Cihak, Zachary Heiliger
  • Patent number: 10071438
    Abstract: A method of forming a shank comprises arranging first structures in a first set of the first structures and second structures in a second set of the second structures such that the first structures and the second structures extend away from a longitudinal central axis in a direction normal to the longitudinal central axis and such that ends of the first structures and the second structures, farthest away from the longitudinal central axis, form cylindrical surfaces, parallel to the longitudinal central axis and equidistant from the longitudinal central axis. The method further comprises indirectly bonding the first set of the first structures to the second set of the second structures, thereby forming the shank. At least one of the first structures consists of a first material. At least one of the second structures consists of a second material, such that the first material is different from the second material.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 11, 2018
    Assignee: The Boeing Company
    Inventor: Steven Graham Wallace
  • Patent number: 9999929
    Abstract: A cutting head for a cutting tool includes a cutting portion and a shank portion. The cutting portion has a plurality of integrally formed cutting edges and the shank portion has a first end adjacent the cutting portion and a second end. The first portion of the shank portion is closer to the first end of the shank portion than the second and third portions of the shank portion and the third portion of the shank portion is disposed closer to the second end of the shank portion than the first and second portions. The first portion of the shank portion has an exterior surface including at least one axially extending recess extending from an end of the first portion closest to the second portion toward the first end of the shank portion. The cutting head is formed of a pressed and sintered cemented carbide material.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: June 19, 2018
    Assignee: SECO TOOLS AB
    Inventor: Lilian Rimet
  • Patent number: 9937567
    Abstract: A drill has a replaceable cutting head mounted to a shank in an interlocking fashion. The shank has a pocket with at least one flat, vertically-angled retention surface located closer to a rotational axis than at least one driving surface. Similarly, the cutting head has at least one vertically-angled retention surface located closer to the rotational axis of the drill than at least one driven surface. As a result of the relative locations between the surfaces with respect to the rotational axis, the stresses and fatigue imposed on the drill are minimized, thereby prolonging tool life.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: April 10, 2018
    Assignee: KENNAMETAL INC.
    Inventor: Ruy Frota de Souza Filho
  • Patent number: 9839966
    Abstract: A quick-release arbor is adapted for a cylindrical hole saw that has a bottom wall having a threaded central aperture and opposing indexing holes. The arbor has a central hexagonal passage with opposing key slots passing therethrough and a threaded hole saw fitting axially aligned with the hexagonal passage. The arbor has a hexagonal pilot shaft securely holding a pilot drill bit and intermediate opposing keys forming a position lock. The pilot shaft is adapted to freely pass through the passage. Within the arbor is a button chamber that is transverse to the hexagonal passage with a rear wall. A biased button is located within the button chamber having upper and lower cuts outs to permit the pilot shaft to freely pass through the cut outs of the button when the button is depressed and having rear pocket to capture one of the pilot shaft opposing keys when the button is released.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: December 12, 2017
    Assignee: Maclo Products, Inc.
    Inventor: Thomas A. Batho
  • Patent number: 9782841
    Abstract: The invention relates to a cutting tool, particularly for use in a tool chuck of a machine tool, including a tool shaft with a center longitudinal axis and a tool head. The tool head is connected to the tool shaft via a positive-locking connection, which locks the movement in the direction of the center longitudinal axis and the positive-locking connection is supplemented by a bonded connection, particularly a soldered connection.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: October 10, 2017
    Assignee: KENNAMETAL INC.
    Inventor: Herr Bernd Pfeuffer
  • Patent number: 9630267
    Abstract: The thread generating tool for producing a thread in a workpiece has the following features: a) the tool is rotatable about a tool axis (A), b) the tool has a number n?1 of groove generating regions for generating in each case one groove in the workpiece and a number m?1 of thread generating regions for generating the thread in the workpiece, c) each of the m thread generating regions is arranged behind one of the n groove generating regions as viewed in an axial projection parallel to the tool axis (A), and has a smaller extent than said groove generating region as viewed in cross section in the axial projection.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: April 25, 2017
    Assignees: EMUGE-WERK RICHARD GLIMPEL GMBH & CO. KG FABRIK FUER PRAEZISIONSWERKAEUGE, AUDI AG
    Inventors: Helmut Glimpel, Dietmar Hechtle, Peter Kopton
  • Patent number: 9623489
    Abstract: The invention relates to a rotary tool (2), in particular a drill, having a cutting part (10) that extends in a longitudinal direction (8) from a clamping shank (6) arranged in a rearward region (22) to a tool front (12) arranged in a forward region (20), and in which helically running chip flutes (14) and continuously helically running coolant channels (36) are fashioned, such that an exit opening (42) of each coolant channel (36) is arranged in the respective chip flute (14), wherein the chip flutes (14) are each shaped with an angle of twist (?) varying in the longitudinal direction (8) such that, in the forward region (20) facing towards the tool front (12), the respective coolant channel (36) is intersected by the respective chip flute (14) so as to fashion the exit opening (42).
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: April 18, 2017
    Assignee: KENNAMETAL INC.
    Inventor: Tim Guter
  • Patent number: 9592061
    Abstract: A reamer assembly, comprising a modular drill tip having a cutting edge proximate a first end, a pair of flexible arms extending from and proximate to a second end and a first through-hole positioned between the first and second ends along a longitudinal axis, wherein the first through-hole is configured to receive a guide wire during a reaming process; and a reamer shaft having a receiving end that is configured to receive and releasably hold in axial alignment thereto the pair of flexible arms, the reamer shaft having a second through-hole that is configured to receive the guide wire during the reaming process, wherein the first and second through-holes together create a common through-hole that is positioned along the longitudinal axis.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: March 14, 2017
    Assignee: Biomet Manufacturing, LLC
    Inventors: Daniel Norton, Kevin T Stone
  • Patent number: 9579782
    Abstract: A tool attachment has: (i) a drive shaft driven rotationally; (ii) a locking section for locking on a mounting interface of a hand-held machine tool, the machine tool including a tool holder having a receiving member for receiving an insert tool and a first locking sleeve preloaded by a first spring element in an axial direction pointing away from the hand-held machine tool; and (iii) an actuating element configured to shift, upon mounting the tool attachment on the hand-held machine tool, the first locking sleeve against a spring force applied by the first spring element, in the direction of the hand-held machine tool.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: February 28, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventor: Torsten Tussing
  • Patent number: 9498829
    Abstract: The invention is directed to a drill system that better uses the power curve of modern machine tools. The drill system uses a two-step drill, utilizing IC inserts to perform the major hole diameter cutting, and a central drilling system. In examples, the IC inserts can be set in a drill head in a single or double effective configuration. A central drilling system cuts the remaining minor diameter portion of the hole, and is configured to see less cutting surface footage, due to its position from the rotating center of the tool. The central drilling system may include a “self-centering” geometry, such that the drill head of the tool with be guided throughout the depth of the hole. The drill system allows for a large diameter deep hole that remains straight throughout to be drilled at higher speed and lighter feed rates thus offering a more productive tool that takes advantage of the power curves and lower thrust capabilities of modern machine tools.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: November 22, 2016
    Assignee: Allied Machine & Engineering Corp.
    Inventor: Jared R. Zabrosky
  • Patent number: 9415449
    Abstract: A rotary cutting tool, in particular a drill or milling cutter for heavy-duty cutting applications, is provided, said rotary cutting tool having at least one cutting edge and a shank having a free end. The shank has in its circumferential surface a groove for receiving a pull-out prevention element, wherein the groove extends axially and at the same time at least partially along the circumference of the shank and, starting at a distance from the free end of the shank, in the direction of the opposite free end. Also provided is a tool unit for a rotary cutting tool.
    Type: Grant
    Filed: December 28, 2013
    Date of Patent: August 16, 2016
    Assignee: KENNAMETAL INC.
    Inventor: Josef K. Herud
  • Patent number: 9402638
    Abstract: A cutting burr that includes a pair of axially spaced diamond-shaped portions designed to be keyed into a spindle of a locking mechanism of a high speed surgical drilling instrument and adapted to fit into a single pawl thereof to lock said cutting burr in place so as to prevent axial movement thereof and provide concentric rotation of said cutting burr without any wobbling. The orientation of both portions may be identical with respect to a center plan and diamond shape in the portion at the proximal end of the shank of the cutting tool may be larger than the intermediately located diamond shape of the other portion. The apexes of the facets of the six-sided diamond shape may be disposed below the surface of the shank of the cutting burr.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: August 2, 2016
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Eddy H. del Rio, Duane Jeffrey Enck
  • Patent number: 9266173
    Abstract: The invention relates to a milling tool (1) having a length ltotal and diameter dtotal and having blades (2) for the milling of mostly metal workpieces. In order to prevent an uncontrolled failure of the milling tool, it is proposed that the blades (2) are partially or entirely made of polycrystalline cubic boron nitride (PcBN) or polycrystalline diamond (PCD) and the diameter dtotal of the milling tool lies between 7 mm and 40 mm.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: February 23, 2016
    Assignee: CeramTec GmbH
    Inventor: Raouf Ben Amor
  • Patent number: 9120163
    Abstract: A pressure medium controlled counterbore tool with one or multiple cutters for metal cutting, which can be actuated in their swivel position by supplying a pressure medium, wherein the actuation of at least one cutter is performed by at least one cutter by means of at least one piston-cylinder unit actuated by the pressure medium.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: September 1, 2015
    Assignee: Heule Werkzeug AG
    Inventor: Ulf Heule
  • Patent number: 9113917
    Abstract: A surgical apparatus having a locking mechanism that receives a cutting burr and that may include a loading and running position. The locking mechanism may include a motor driven spindle that carries a locking pawl and a detent pawl that lock the cutting burr in place an prevent the cutting burr from inadvertently falling out of the surgical drill instrument when in its load position. A diamond-shaped portion of the cutting burr may be formed in a six-sided diamond configuration and a perpendicular back end surface. The end of the cutting burr may include another diamond-shaped portion formed in a six-sided diamond shape surface that mates with a complementary surface formed in the receiving end of the spindle of the motor/locking mechanism. In an aspect, the attachment of the cutting burr is such that the cutting burr has substantially zero axial movement and runs true in the running condition.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: August 25, 2015
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Eddy H. del Rio, Duane Jeffrey Enck
  • Publication number: 20150104264
    Abstract: A drilling tool is disclosed. The drilling tool includes a drilling stub, a cutting element attached to the drilling stub, and a fastening section for fastening onto a tool holder. The fastening section is divided into at least one guide region and one locking region, where at least one interlocking geometry, which protrudes in the axial direction beyond the remaining locking region, and which in particular is a bulge, is designed for transmission of a torque from the tool holder to the drilling tool, and the at least one interlocking geometry has two abutting surfaces each in the tangential direction. One first abutting surface of the two abutting surfaces is designed essentially parallel to a longitudinal axis of the drilling tool and the first abutting surface serves to transmit the torque.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 16, 2015
    Applicant: Hilti Aktiengesellschaft
    Inventors: Andreas Vogel, Taack-Trakranen Van John
  • Patent number: 8992143
    Abstract: The invention relates to a modular drill including a shank part with an end side. A cutting part can be connected to the shank part at its end side. The shank part has at least one torque transmission element which projects on the end side and has at least one torque transmission face for transmitting a torque in the rotational direction from the shank part to the cutting part. The cutting part has at least one torque receiving region for receiving the torque. The at least one torque receiving region has at least one torque receiving face which corresponds with the torque transmission face. The cutting part has at least one centering element for radially centering the cutting part in relation to the shank part. The cutting part is clamped to the shank part via a clamping element which acts at least predominantly in the axial direction.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: March 31, 2015
    Assignee: EMUGE-Werk Richard Glimpel GmbH & Co. KG, Fabrik für Präzisionswerkzeuge
    Inventors: Helmut Glimpel, Bernhard Borschert
  • Patent number: 8992142
    Abstract: A cutting tool has a tool shank and a replaceable cutting head resiliently secured to the tool shank by an interference fit between a male fixation member of the cutting head and a female fixation member of the tool shank. The male fixation member has a resilience slit. In each cross section of the cutting tool taken perpendicular to an axis of rotation of the cutting tool through mutual abutment regions, the cross sectional profiles of the mutual abutment regions are arcuate sectors.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: March 31, 2015
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8944728
    Abstract: A screw tap includes a shaft having at least one cutting portion and a drive portion. The drive portion is of a cross-section complimentary to tools adapted to act upon the drive portion. The shaft is provided with a recess extending axially thereof and adapted to receive drive device having a cross-section corresponding to the cross-section of the recess.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: February 3, 2015
    Inventor: Klaus Peter Vökel
  • Patent number: 8944732
    Abstract: A machining head replaceable rotating tool having a fastening male screw and a fastening female screw disposed on respective shaft centers of one and the other of a machining head and a holder, the fastening male and female screws being threadably engaged with each other to concentrically and removably attach the machining head to a tip portion of the holder, the machining head and the holder being disposed with abutting surfaces abutted against each other in a fastened state when the fastening male and female screws are threadably engaged, the machining head replaceable rotating tool being integrally and rotationally driven via the holder in a tool rotation direction causing the fastening male and female screws to be fastened by a machining load to perform predetermined machining with the machining head, the abutment of the abutting surfaces preventing the fastening male and female screws from being further fastened by a machining load, the fastening male and female screws being saw-tooth buttress screws hav
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: February 3, 2015
    Assignee: OSG Corporation
    Inventors: Jiro Osawa, Tasuku Itoh
  • Publication number: 20150030398
    Abstract: A rotary cutting tool includes a cutter of generally cylindrical shape disposed about a central longitudinal axis. The cutter has a first end having an active fluted portion and an opposite second end, the second end having a male threaded portion disposed thereabout. The cutting tool further includes a shank of generally cylindrical shape disposed about the central longitudinal axis, the shank having a recessed female threaded portion formed in a first end. The male threaded portion includes a number of threads disposed at a first pitch and the female threaded portion includes a number of threads disposed at a second pitch different than the first pitch. The cutter and the shank are selectively coupled via threaded engagement of the male threaded portion and the female threaded portion.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 29, 2015
    Applicant: KENNAMETAL INC.
    Inventors: RUY FROTA DE SOUZA, LEONID B. SHARIVKER, SERGEI BOULAKHOV, CHRISTOPH GEY, YOSI HARUSH, ALAN BOOKHEIMER, UZI LEVY, STEPHEN MICHAEL GEORGE
  • Publication number: 20150016906
    Abstract: A drill bit system and associated methodology enables a user to quickly and easily interchange drill bits upon a primary shank during drilling operations. The drill bit system optionally comprises a primary, flexi-shank, a series of drill bits, a set screw, an extension adapter, and quick change or secondary shank. The primary shank has a notched, bit-engaging end. Each drill bit has a shank-engaging end and a bit axis. Each shank-engaging end has female structure for receiving the bit-engaging end. Each female structure has a substantially uniform inner bit diameter sized for receiving the shank. The bit-engaging end is receivable by the shank-engaging ends, and the set screw is threadably receivable by both (a) threaded apertures formed in the bits and (b) the notch for removably and interchangeably fastening the drill bits to the flexi-shank. The extension adapter and secondary, quick change shank enable added interchangeability and drilling capabilities.
    Type: Application
    Filed: September 19, 2014
    Publication date: January 15, 2015
    Inventor: Colleen F. York
  • Patent number: 8931982
    Abstract: A throw-away rotating tool includes plural protrusions formed in a part of an outer peripheral wall of a projecting coupling portion. Since the twist angle and a twist direction of the protrusions are set in such a way that with relative rotation when coupling the projecting coupling portion and erected portions together, due to the reaction force received by the protrusions from inner peripheral walls, the projecting coupling portion is pulled to the rear and side of the erected portions and the projecting coupling portion is stably held between the erected portions. Since the number of portions that require stringent dimension control and high machining accuracy can be reduced, productivity can be improved.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: January 13, 2015
    Assignee: OSG Corporation
    Inventors: Jiro Osawa, Takuma Aoyama, Tasuku Itoh, Ikuo Takikawa
  • Publication number: 20150003936
    Abstract: In a part having a surface, a bolt hole is provided extending into the part from the surface. Threads in the hole have crests with a fishmouth shape at the crests defined by a central concave portion and raised corner portions at ends of the concave portion. At least one start thread preceding the threads with the fishmouth shape crests is provided having a substantially flat crest without the fishmouth shape. A tap for manufacturing the threaded bolt hole has a first thread section and a second thread section. The second thread section has a plurality of threads for creating at least one improved start thread in the hole to be threaded, minor diameters at valleys between the threads of the second thread section being greater than minor diameters at valleys between threads of the first thread section or major diameters at crests of the threads of the second thread section being greater than major diameters at crests of the first thread section.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Applicant: MEADVILLE FORGING CO. LP
    Inventors: Kenneth P. Griffard, Carl P. McLean, Michael Rhoades
  • Publication number: 20140363246
    Abstract: A tool for machining a wall of a workpiece, made from a composite material, that can cut a groove in the wall, the tool including a head mounted integrally with a rod having a longitudinal axis and capable of being driven in rotation about the longitudinal axis. The head includes at least one main protruding annular rib with an outer surface covered with abrasive grains of predetermined particle size and with a radial height corresponding to the depth of the groove to be cut, and at least one auxiliary protruding annular rib with an outer surface covered with abrasive grains of predetermined particle size and with a radial height less than the radial height of a main rib. The auxiliary rib includes two circular ridges separated by a ring band that is flat and that can be conical in shape.
    Type: Application
    Filed: January 3, 2013
    Publication date: December 11, 2014
    Applicant: SNECMA
    Inventors: Christophe Grosbois, Mathias Seve
  • Patent number: 8882413
    Abstract: A cutting insert has a head portion and a coupling portion protruding rearwards from the head portion, along a longitudinal insert axis. The head portion has a base surface at a rearward end thereof, defining a base plane, and two major surfaces. A coupling portion rear surface is longitudinally spaced apart from the base surface and a cylindrical coupling peripheral surface extends between the coupling portion rear surface and the base surface. A resilience slit has two opposite inner walls converging forwards towards a slit inner end terminating at a slit inner end plane. The slit inner end plane is parallel to the base plane and spaced apart therefrom by a longitudinal distance. The inner walls of the resilience slit form an acute slit angle therebetween.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: November 11, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Publication number: 20140328641
    Abstract: A drill bit has a shank (4) between a drilling head (3) and an insertable end (5) along an axis (2). The shank (4) is provided with at least two first flutes (34) that run along the axis (2) and at least a second helical flute (31). The first flutes (34) and the second flute (31) cross each other at several crossings (41).The width (35) of the first flute 34 steadily decreases over the area between two adjacent crossings (41) from one of the crossings (41) all the way to the narrowest place (42) and subsequently steadily increases all the way to the other crossing (41).
    Type: Application
    Filed: July 18, 2012
    Publication date: November 6, 2014
    Applicant: Hilti Aktiengesellschaft
    Inventors: Carsten Peters, Guenther Domani, Marcel Roessner, Josef Starkmann
  • Patent number: 8834077
    Abstract: A method of fabricating a micro drill, which includes a drill part for machining a hole and a shank part fixed to a motor, the drill part and the shank part being made of different materials. The method includes the steps of forming a drill part-forming powder compact having a recess in one end thereof, and forming a shank part-forming powder compact having a protrusion, the protrusion intended to be fitted into the recess of the drill part-forming powder compact, forming an assembly of the drill part-forming powder compact and the shank part-forming powder compact, with the protrusion fitted into the recess, and simultaneously sintering the assembly of the drill part-forming powder compact and the shank part-forming powder compact.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: September 16, 2014
    Assignee: Bestner Inc.
    Inventors: Tae Sik Yoon, Soon Jin Cho, Seung Hyun Cho, Jae Joon Lee
  • Patent number: 8813617
    Abstract: A cutting insert has a longitudinal insert axis A, a cutting head and an insert shank which extends rearwardly from the cutting head. The insert shank includes an insert clamping portion with an asymmetric cross section taken perpendicular to the insert axis A. The insert shank has a peripheral surface extending along at least a portion of the total length of the insert shank. The cutting insert has a first dividing plane P1 which contains the insert axis A. The first dividing plane P1 may be parallel to a line L which extends along the longest cross-sectional dimension of the insert clamping portion 40. On one side of the first dividing plane P1, the peripheral surface comprises first and second longitudinally extending depressions. On the other side of the first dividing plane P1, the peripheral surface comprises first and second abutment surfaces separated by a third depression, the first and second depressions being separated by a third abutment surface.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: August 26, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8807888
    Abstract: A tool shank for use with a cutting insert in a rotary cutting tool includes a body having, and adapted to be rotated about, a central longitudinal tool axis, the body having a tip portion structured to receive at least a portion of the cutting insert therein. The shank also includes a pair of chip flutes formed in the body and a pair of recesses, each recess bordering a respective chip flute. Each recess includes a rim portion extending perpendicular to the tool axis and a bearing surface extending at an incline relative to the tool axis. Each rim portion is adapted to engage a corresponding surface on the cutting insert. Each bearing surface is adapted to engage a corresponding bearing surface on the cutting insert in a manner such that the cutting insert is pulled against the body when the rotary cutting tool is rotated about the tool axis.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: August 19, 2014
    Assignee: Kennametal Inc.
    Inventors: Bernhard Borschert, Dieter Muhlfriedel, Jurgen Schwagerl, Ruy Frota de Souza, Jr., Michael D. Shultz, Michael R. McCormick, Robert A. Erickson
  • Patent number: 8801342
    Abstract: There is provided a drill bit comprising a bit body having a receptor portion formed therein, the receptor portion being filled with a cutting oil; a drilling portion extended from one end of the bit body, having a channel coupled to the receptor portion formed therein, and having an opening formed in one end thereof and connected to the channel; and a cutting portion provided at a periphery of the opening of the drilling portion for drilling a workpiece, wherein the channel of the drilling portion has a small diameter in order that the cutting oil is not discharged outside of the channel by external pressure or gravitational force, and the channel of the drilling portion has a structure in which capillary action occurs due to cut chips flowing through the channel during drilling of the workpiece so that the cutting oil may be discharged by the capillary action.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: August 12, 2014
    Assignee: EHWA Diamond Industrial Co., Ltd.
    Inventors: Jae-Hyun Hong, Jong-Suk Choi, Do-Ui Hong
  • Patent number: 8790052
    Abstract: A bolt on drive assembly for a core drill which utilizes an improved high strength spoked reinforcer mounted beneath a disc. The disc and high strength spoke reinforcer are removably mounted on the tube by bolt fasteners. A drive connection is removably mounted and centrally located on a outer disc of the pair of discs. The drive connection is adapted to connect with a drive shaft to cause rotation of the tube. The system can also include a split in the disc when the high strength spoked reinforcer is not welded thereto thereby providing a means of water control. The high strength spoked reinforcer can be a separate piece that is bolted to the disc or can be integrally formed as one piece therewith.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: July 29, 2014
    Assignee: Western Saw
    Inventor: Anthony Baratta
  • Publication number: 20140193219
    Abstract: A rotary cutting tool, in particular a drill or milling cutter for heavy-duty cutting applications, is provided, said rotary cutting tool having at least one cutting edge and a shank having a free end. The shank has in its circumferential surface a groove for receiving a pull-out prevention element, wherein the groove extends axially and at the same time at least partially along the circumference of the shank and, starting at a distance from the free end of the shank, in the direction of the opposite free end. Also provided is a tool unit for a rotary cutting tool.
    Type: Application
    Filed: December 28, 2013
    Publication date: July 10, 2014
    Applicant: Kennametal Inc.
    Inventor: Josef K. Herud
  • Publication number: 20140183827
    Abstract: A tool arrangement and chuck apparatus for quick change of a range of tools; particularly, a quick change chuck adapted to engage various diameter drill bits, tools and tool holders. The tools are rotatable in a chuck or adaptor and have at one end a centering shaft portion having a constant diameter for multiple tool end diameters and shapes, a drive shoulder portion and a lock portion. The chucks have a tool centering arrangement for accommodating the constant diameter centering shaft. The chucks are also described as having tool bit release mechanism operable to disengage the tool from a retention mechanism when a force is applied inwards of the body of the chuck by the user to allow the tool bit to be removed longitudinally from the chuck but also arrange to allow the tool bit to be inserted longitudinally into the chuck without requiring any other user operation.
    Type: Application
    Filed: April 23, 2012
    Publication date: July 3, 2014
    Applicant: Inovec Pty Ltd
    Inventor: Kym Keightley
  • Publication number: 20140147224
    Abstract: A cutting insert has a head portion and a coupling portion protruding rearwards from the head portion, along a longitudinal insert axis. The head portion has a base surface at a rearward end thereof, defining a base plane, and two major surfaces. A coupling portion rear surface is longitudinally spaced apart from the base surface and a cylindrical coupling peripheral surface extends between the coupling portion rear surface and the base surface. A resilience slit has two opposite inner walls converging forwards towards a slit inner end terminating at a slit inner end plane. The slit inner end plane is parallel to the base plane and spaced apart therefrom by a longitudinal distance. The inner walls of the resilience slit form an acute slit angle therebetween.
    Type: Application
    Filed: November 26, 2012
    Publication date: May 29, 2014
    Applicant: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8727680
    Abstract: A cutting drill includes a shank having a hole and formed to be gripped in a tool holder, and a drill body having a rod shape and locked into the hole of the shank. The shank has an axis around which the drill body rotates. The drill body has a cutting-edge portion forming a tip portion of the drill body and a neck portion having a diameter smaller than a diameter of the cutting-edge portion. The cutting-edge portion has a first cutting-edge portion and a second cutting-edge portion formed between the first cutting-edge portion and the neck portion. The first cutting-edge portion is contiguous to the second cutting-edge portion by a step portion such that the second cutting-edge portion has a diameter which is smaller than a diameter of the first cutting-edge portion.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: May 20, 2014
    Assignees: Ibiden Co., Ltd., Ibidenjushi Co., Ltd.
    Inventors: Susumu Wada, Shunsuke Takeichi, Tomoko Sugiyama
  • Patent number: 8721235
    Abstract: The invention relates to a drilling tool with a base, having a central axis of rotation, and a drill bit, detachably connected to the base. The drill bit has a coupling part, which can be coupled with a coupling receptacle on the face of the base and has at least two convexly curved centring portions, which are arranged such that they are distributed over the circumference and engage with an exact fit in complementary concavely curved centring portions of the coupling receptacle. The coupling part has a complementary driver stop, meshing with a rotary driver of the coupling receptacle. It is claimed as novel that the centring portions of the coupling part and/or of the coupling receptacle have clamping surfaces, which run onto each other in the manner of a rotary wedge until the driver stop and the rotary driver come up against each other counter to a predetermined direction of rotation.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: May 13, 2014
    Assignees: Komet Group GmbH, Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventors: Uwe Kretzschmann, Rico Schneider, Henry Schuett, Matthias Luik, Matthias Oettle
  • Publication number: 20140126972
    Abstract: A drill bit has a shank portion having a plurality of SDS-type slots, a cutting portion comprising at least one cutting flute, and an intermediate portion connecting the shank to the cutting portion, the intermediate portion including at least one longitudinal slot. A depth gauge includes a body configured to receive the drill bit, a retention mechanism coupled to the body and having an inward projection to removably couple the body to the at least one additional slot in the drill bit, and a cap coupled to the body such that the cap contacts a workpiece surface to prevent the drill bit from entering the workpiece more than a predetermined depth, wherein the cap is movable relative to the body among a plurality of positions, wherein each of the plurality of positions corresponds to a different predetermined drilling depth.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 8, 2014
    Applicant: Black & Decker Inc.
    Inventors: ALAND SANTAMARINA, JOSEPH KELLEHER, SCOTT MUHLBAIER, DARREN B. MOSS, MARK BRUNSON, DAVID LEE, MICHAEL PETERS, RICKEY J. THOMAS, CRAIG A. SCHELL, ROBERT S. GEHRET
  • Patent number: 8708611
    Abstract: A cutting head (14) for a T-slot cutter (10) includes opposing cutting head top and intermediate surfaces (18, 20) extending perpendicular to a head rotation axis (A), and a head peripheral surface (22) extending therebetween. The cutting head (14) also includes cutting portions (24) located along the head peripheral surface (22) and a head protrusion (32). The head protrusion (32) extends from the cutting head intermediate surface (20) and includes a head torque-transfer portion (42). The cutting head (14) further includes a cutting head abutment surface (34), and a head bore (36) coaxial with the head rotation axis (A). The head bore (36) extends between, and opens out to, the cutting head top surface (18) and the head protrusion (32). The cutting head (14) also includes a head centering portion (40) distinct from the head torque-transferring portion (42) and located at an axial position different therefrom, along the head rotation axis (A).
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: April 29, 2014
    Assignee: Iscar, Ltd.
    Inventor: Amir Marshansky
  • Patent number: 8702356
    Abstract: A fluted drill has a drill body with a fluted drill cutting head removably secured thereto. The cutting head has two drilling portions facing axially opposite directions. In axial view, the cutting head has at least four through openings. Each drilling portion includes a plurality of head flute portions and a plurality of cutting head coupling portions.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: April 22, 2014
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Danny Chen
  • Patent number: 8696270
    Abstract: A cutting tool having a cutting head removably secured to a shank by frictional forces maintained between a male coupling member located in a female coupling member. Support surfaces of the male coupling member engage support walls of the female coupling member. The support surfaces lie on a common cylinder having a larger diameter than a common cylinder on which the support walls lie. The support walls are located on a circumferentially continuous bore wall of the female coupling member.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: April 15, 2014
    Assignee: Iscar, Ltd.
    Inventors: Shim'on Shitrit, Hanoch Guy
  • Patent number: 8690876
    Abstract: A cutting burr that includes a pair of axially spaced diamond-shaped portions designed to be keyed into a spindle of a locking mechanism of a high speed surgical drilling instrument and adapted to fit into a single pawl thereof to lock said cutting burr in place so as to prevent axial movement thereof and provide concentric rotation of said cutting burr without any wobbling. The orientation of both portions may be identical with respect to a center plan and diamond shape in the portion at the proximal end of the shank of the cutting tool may be larger than the intermediately located diamond shape of the other portion. The apexes of the facets of the six-sided diamond shape may be disposed below the surface of the shank of the cutting burr.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: April 8, 2014
    Assignee: Depuy Synthes Products, LLC
    Inventors: Eddy H. del Rio, Duane Jeffrey Enck
  • Publication number: 20140086698
    Abstract: A drilling tool for the installation of elongate members in walls comprises an elongate hollow shaft. The shaft has a proximate end and a distal end, the proximate end is provided with means for connection to a drill and the distal end is provided with means for connection to a drill bit so shaped and dimensioned that the drill bit forms a hole of a diameter greater than the maximum diameter of the shaft. The shaft comprises an aperture located at the proximate end of the shaft and adjacent to the means for connection to a drill, and an aperture located at the distal end of the shaft and adjacent to the means for connection to a drill bit.
    Type: Application
    Filed: September 25, 2012
    Publication date: March 27, 2014
    Inventor: Ken Huddleston
  • Patent number: 8678722
    Abstract: A rotatable tool for chip removing machining, including a basic body having front and rear ends between which a first center axis (C1) extends around which the basic body is rotatable, and a loose top having front and rear ends between which a second center axis (C2) extends. The front end of the basic body includes a jaw which is delimited by two torque-transferring drivers and an intermediate bottom in which a part of the loose top is receivable, and a center hole that mouths in the bottom of the jaw and has a hole wall which extends axially inside the basic body and in which a threaded hole mouths for a screw to co-operate with a centering pin that protrudes axially rearward from the loose top, the centering pin being insertable into the center hole. The centering pin has a cross-sectional area that is less than a cross-sectional area of the center hole.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: March 25, 2014
    Assignee: Sandvik Intellectual Property AB
    Inventor: Magnus Aare
  • Patent number: 8678723
    Abstract: A throw-away rotating tool improves workability of detaching a throw-away tip and prevents from damaging a body. In the throw-away tool, a convex connection for the throw-away tip has protrusions, each of the protrusion includes a sliding contact portion detachably fitted into the inner peripheral groove recessed in the inner peripheral wall of a body. The protrusion has a first tilt portion continuous to the sliding contact portion. In detaching the throw-away tip from the body, the first tilt portion rotates ahead of the sliding contact portion, and a standing portion is elastically deformed due to a wedge effect of the first tilt portion. As a result, the protrusion can be gently removed from the inner peripheral groove.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: March 25, 2014
    Assignee: OSG Corporation
    Inventors: Jiro Osawa, Takuma Aoyama, Tasuku Itoh
  • Patent number: 8668411
    Abstract: A cutting tool has a cutting insert and a holder. The cutting insert has a cutting portion and an insert shank with a cylindrical portion and a non-cylindrical portion. The holder has a clamping portion which has a clamping sleeve and a cage located therein. The cage includes a load member housing with a load member. The cage has a major abutment wall adjacent to a minor abutment wall. The clamping sleeve has first and second inner sections defined by points P1 and P2. A point P3 divides the second inner section into first and second portions. The clamping sleeve is rotatable between a secured and a released position of the cutting tool. In the secured position, the non-cylindrical portion abuts the major abutment wall, the cylindrical portion abuts both the minor abutment wall and the load member, and the load member abuts the first portion.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: March 11, 2014
    Assignee: Iscar, Ltd.
    Inventor: Hanoch Guy