Screw Driven Means Patents (Class 408/233)
  • Patent number: 11325193
    Abstract: A cutting tool comprises a shank having an insertion portion protruding from a shank main body, a head in which an insertion hole into which the insertion portion is inserted is formed, and a spacer disposed in a gap between the shank main body and the head. The insertion portion has a tapered outer circumferential surface which gradually decreases in diameter from the other side toward one side in the axial direction. The insertion hole has a tapered inner circumferential surface coming into surface contact with the tapered outer circumferential surface. A head end surface of the head which faces the other side in the axial direction comes into surface contact with a surface facing one side in the axial direction of the spacer.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: May 10, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Hiroki Takagi, Yoshiki Tazawa
  • Patent number: 10744575
    Abstract: A drill tip may include a first part and a second part. The first part includes a cutting edge located at a side of a first end, and a recess located at a side of a second end, where the first end is one side of a central axis and the second end is another side of the central axis. The second part includes a shank portion extending along the central axis, and an engaging portion which connects to the shank portion at a side of the first end and includes a diameter greater than the shank portion. The engaging portion is located in the recess.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: August 18, 2020
    Assignee: KYOCERA CORPORATION
    Inventor: Katsura Hayashi
  • Patent number: 9302334
    Abstract: The embodiments described herein relate to methods, systems, and structures for cutting a part to form a highly reflective and smooth surface. In some embodiments, the part includes substantially horizontal and vertical surfaces with edges and corners. In described embodiments, a diamond cutter can be used to cut a surface of the part during a milling operation where the diamond cutter contacts the part a number of times with each rotation of the spindle of a milling machine. In some embodiments, a complex feature having planar and curved surfaces is cut into a part.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 5, 2016
    Assignee: Apple Inc.
    Inventors: Napthaneal Y. Tan, Chien-Ming Huang, Yu Yundi, Zhoujun Lu
  • Patent number: 9089911
    Abstract: A side milling cutter arbor for mounting a selected milling cutter on a vertical milling machine that includes first, second and third interconnected members. The first member has a generally cylindrical body portion and a reduced diameter shank portion connected to the body portion. The body portion is provided with a longitudinal bore having a first portion having a key way and a second portion, the second portion being generally rectangular in cross-section. The second member has a flange portion, an intermediate portion having a key receivable within the key way and an end portion, the end portion being generally rectangular in cross-section and being closely receivable within the second portion of the longitudinal bore of the first member. The third member functions to removably interconnect the first and second members.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: July 28, 2015
    Inventor: Gil Espinosa
  • Patent number: 9073129
    Abstract: A rotary cutting tool includes a replaceable cutting tip having a cutting portion structured to perform cutting operations on a workpiece and a first threaded portion disposed generally opposite the cutting portion. The cutting tool further includes a generally cylindrical tool body disposed about a central longitudinal axis. The tool body has a first end portion adapted to be coupled to a machine tool and an opposite second end portion having a second threaded portion cooperatively engaged to the first threaded portion. The second threaded portion is moveable with respect to the tool body in a manner that selectively couples the cutting tip to the tool body.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: July 7, 2015
    Assignee: KENNAMETAL INC
    Inventors: Karen A. Craig, Philip M. Mileca
  • Patent number: 9004827
    Abstract: An adjustable drill is provided comprising a drill body having at least one face surface with a plurality of serrations provided therewith. The drill further has at least one cartridge having a cooperating plurality of second serrations, to be driven with the drill body when assembled therewith. The at least one cartridge includes at least one insert pocket, and at least one insert is releasably affixed in the insert pocket provided in the cartridge. In further examples, the adjustable drill may have a central cutting system in combination with the adjustable cartridge type system, wherein the central cutting system may be modular. There may also be provided a modular type of holder arrangement to provide flexibility to adapt the system for various applications.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 14, 2015
    Assignee: Allied Machine & Engineering Corp.
    Inventors: Mark D. Meyer, Kevin D. Myers
  • Patent number: 8992136
    Abstract: A rotary-driven tool for cutting machining, in particular a drilling tool with a cutting body and a holder with a shaft piece is disclosed, with at least a cutter and a dovetail-shaped region on the cutting body and a matching dovetail recess on the holder. The cutting body can only be inserted in the holder laterally to a longitudinal axis of the holder. In order to fix the cutting body, opposing flank sections of the dovetail recess, between which the dovetail-shaped region fits can be moved over each other by means of a screw connection in the holder and on fixing the cutting body said body is subjected to a force on the axial direction by the screw connection. In one aspect, the cutting body is a cutting head and the axial force is exclusively generated by the dovetail-shaped region in cooperation with the dovetail recess in the holder.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: March 31, 2015
    Assignee: Guehring OHG
    Inventors: Markus Klettenheimer, Uwe Schlagenhauf
  • 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: 8956091
    Abstract: In a drilling tool including: a shank located at a tip side of a tool main body; and a bit located at a tip side of the shank, the shank and the bit (connection body) are connected to each other via screws, and a guide part for center alignment for aligning the centers of the shank and the bit is formed in the vicinity of screw portions of the shank and the bit.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: February 17, 2015
    Assignee: Max Co., Ltd.
    Inventors: Takuma Nonaka, Terufumi Hamano, Michio Yamashita
  • Patent number: 8931983
    Abstract: A milling tool assembly has a replaceable cutter and a reusable shank connected to the cutter with a detachable joint. The joint may be, for example, a threaded connection. An intermediate alignment sleeve made of an elastic or semi-elastic material, is positioned between the cutter and the shank about the axis of rotation of the shank.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: January 13, 2015
    Assignee: Kennametal Inc.
    Inventors: Leonid B. Sharivker, Sergei V. Boulakhov, Vladimir Galipko, Vladimir D. Volokh, Shay Zeidner
  • Patent number: 8876446
    Abstract: A cutting tool has a cutting insert secured in a tool shank by means of a clamping bolt, whereby two opposing side surfaces of a body portion of the cutting insert are located between two spaced apart protuberances of the tool shank. The body portion includes a cut-out extending between the two opposing side surfaces and opening out to a bottom surface. The cut-out includes an undercut with at least one undercut sub-surface with respect to a forward direction. The clamping bolt can be rotated from a locked position wherein the bolt shank has a threaded portion engaged in one of the protuberances and a bolt locking portion located directly forward of the at least one undercut sub-surface, to an un-locked position wherein the threaded portion remains engaged in the protuberance and no portion of the bolt shank is located directly forward of the at least one undercut sub-surface.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: November 4, 2014
    Assignee: Iscar, Ltd.
    Inventor: Philip Shaheen
  • Patent number: 8864425
    Abstract: A bevel head replaceable rotary tool is provided. The rotary tool includes a coupling protrusion and a coupling recess, plural sets of serrations provided on an outer circumferential surface of the coupling protrusion and an inner wall surface of the coupling recess, circumferential abutting portions provided on the tool body and the bevel head, and axial tight-contact portions, provided on the tool body and the bevel head. The serrations of the coupling protrusion and the serrations of the coupling recess arranged such that curvatures of circumferential circular arcs of the serrations of the coupling protrusion are greater than those of the serrations of the coupling recess or the serrations of the coupling protrusion and the serrations of the coupling recess have circumferential circular arcs with centers deviated from each other.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: October 21, 2014
    Assignee: OSG Corporation
    Inventors: Jiro Osawa, Tasuku Itoh
  • Patent number: 8845243
    Abstract: Reaming tool includes a head and one or more detachable cutting inserts fixed in seats. The seat includes radial, tangential and axial support surfaces, while the cutting insert has a mirror-symmetrical polyhedron shape comprising six limiting surfaces, viz. two chip surfaces and four clearance surfaces, a number of alternately usable identical cutting edges formed in the transitions between the chip and clearance surfaces. The cutting insert has a rhombic cross-sectional shape with four clearance surfaces, which meet each other in pairs at obtuse angles in two opposite corners, and which, along each individual chip surface, form two cutting edges alternately usable by indexing the cutting insert. The seat additionally includes a slope surface forming an obtuse angle with the radial support surface, suitably of the same magnitude as the obtuse angle between the clearance surfaces of the cutting insert. Tool head and reaming insert for the tool are disclosed.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: September 30, 2014
    Assignee: Sandvik Intellectual Property AB
    Inventor: Per Hansson
  • Patent number: 8784018
    Abstract: A drilling tool of the loose top type includes a basic body having two bendable branches having inner support surfaces that are resiliently pressable against side contact surfaces of a replaceable loose top. The mounting of the loose top is affected by turning-in from an initial position to an operative end position. An abutting edge along each side contact surface then bends out the branches and subjects the branches to a spring force that reaches a maximum in a dead position so as to then decrease somewhat up to the operative end position. During the final phase of the rotary motion, the operator obtains, in a tactile and/or auditory way, confirmation of the loose top indeed reaching its operative end position.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: July 22, 2014
    Assignee: Sandvik Intellectual Property AB
    Inventor: Helena P{hacek over (a)}bel
  • Patent number: 8764355
    Abstract: A step drill bit comprises a body. A cutting edge insert is removably attached to the body. The body may be made of a first material and the cutting edge insert may be made of a second material where the second material is different than the first material. The cutting edge insert may define a plurality of progressively larger cutting diameters.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: July 1, 2014
    Assignee: Irwin Industrial Tool Company
    Inventor: Laverne R. Durfee
  • Publication number: 20140154023
    Abstract: A rotary cutting tool includes a cutting tip having a cutting portion adapted to perform cutting operations on a workpiece and a threaded aperture defined therein generally opposite the cutting portion. The cutting tool further includes a generally cylindrical tool body disposed about a central longitudinal axis, the tool body having a first end portion adapted to be coupled to a machine tool and an opposite second end portion including an aperture having a coupling mechanism disposed therein. The coupling mechanism includes a first threaded portion cooperatively engaged to the threaded aperture of the cutting tip. The first threaded portion is moveable with respect to the tool body in a manner that selectively couples the cutting tip to the tool body.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 5, 2014
    Applicant: KENNAMETAL, INC.
    Inventor: KAREN A. CRAIG
  • 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: 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: 8668409
    Abstract: A twist drill includes a drill body having a chip flute extending a distance along the drill body. The chip flute has a leading edge and a run-out edge running along the chip flute. The run-out edge is disposed behind the leading edge in a direction of rotation of the twist drill. The chip flute, viewed cross-sectionally in a direction perpendicular to the longitudinal axis, includes a first wall portion and a second wall portion. The first wall portion extends along a curve between the run-out edge and the second wall portion. The second wall portion extends in a straight line from between the leading edge and the first wall portion. The first wall portion and the second wall portion are disposed adjoining one another and together define a J-shaped cross-sectional profile perpendicular to the longitudinal axis.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: March 11, 2014
    Assignee: Kennametal Inc.
    Inventor: Peter Karl Mergenthaler
  • Patent number: 8596937
    Abstract: A rotary cutting tool for reaming operations, including a generally cylindrically shaped tool shank with a longitudinal axis having a plurality of radially protruding and generally axially extending clamping wings, and a cylindrically shaped cutting head having a central bore and a plurality of axially extending cutting edges with an outer cutting diameter. The central bore has a plurality of circumferentially and alternately spaced bore sectors and bore recesses, where each bore sector has an outwardly inclined female clamping surface in clamping contact with an outwardly inclined male clamping surface of each clamping wing. A cylindrical shaped locking sleeve and a cylindrical shaped clamping nut assembled to the tool shank provide a means to adjust the clamping contact forces and the cutting diameter of the cutting head, and also enable removal and replacement of the cutting head without removal of the locking sleeve and clamping nut.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: December 3, 2013
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8573909
    Abstract: In a tool coupling in the form of a cutting tool used for internal machining operations, a second component having a single cutting portion is clamped to a first component by means of a clamping screw. The second component has a mounted surface with three male engaging members interfacing with three female engagement members on a mounting surface of the first component. Each of the three female engagement members has two sets of side surfaces located on a shared portion, the shared portion exhibiting mirror symmetry about a first plane, and each set of side surfaces having two opposing flank surfaces separated by the first plane. Only one of the two flank surfaces of each of the two sets of side surfaces is in clamping contact with a corresponding abutment surface on each of the three male engaging members.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: November 5, 2013
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8517644
    Abstract: An adjustable drill has a drill body having a face surface with a directional feature provided therewith. At least one cartridge is mounted adjacent the face surface and selectively slidable along the directional feature to provide adjustment. At least one insert is releasably affixed in an insert pocket provided in the cartridge. In further examples, the adjustable drill may have a central cutting system in combination with the adjustable cartridge type system, wherein the central cutting system may be modular. There may also be provided a modular type of holder arrangement to provide flexibility to adapt the system for various applications.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: August 27, 2013
    Assignee: Allied Machine & Engineering Corporation
    Inventors: Mark D. Meyer, Kevin D. Myers
  • Patent number: 8506212
    Abstract: An adjustable drill has a drill body having a face surface with a directional feature provided therewith. At least one cartridge is mounted adjacent the face surface and selectively slidable along the directional feature to provide adjustment. At least one insert is releasably affixed in an insert pocket provided in the cartridge. In further examples, the adjustable drill may have a central cutting system in combination with the adjustable cartridge type system, wherein the central cutting system may be modular. There may also be provided a modular type of holder arrangement to provide flexibility to adapt the system for various applications.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: August 13, 2013
    Assignee: Allied Machine & Engineering Corporation
    Inventors: Mark D. Meyer, Kevin D. Myers
  • Patent number: 8485765
    Abstract: An indexable insert for solid drills has four identical cutting edges (30) arranged at a distance above a supporting base (42) and each extending between two cutting-edge corners (28?, 28?). The cutting edges are each bounded by a cutting face (46) and a clearance face (48), with the inclusion of a wedge angle (b). Of the cutting edges (30), one in each case is in an active operating position during the drilling operation. To permit optimum adaptation to the cutting conditions and drilling characteristics, varying over the length of the cutting edge of the drilling tool, it is proposed according to the invention that the height (h) of the four cutting edges (30), measured from the plane of the supporting base (42), and/or the clearance angle (a) varies over the length of the respective cutting edges (30).
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: July 16, 2013
    Assignee: Komet Group GmbH
    Inventors: Jacek Kruszynski, Uwe Kretzschmann, Hendrik Nitzsche, Henry Schuett
  • Patent number: 8480338
    Abstract: An adjustable drill having a drill body having a longitudinal axis, and a face surface including an aperture extending into the drill body. A directional feature adjacent the aperture extends toward an edge of the drill body, and a longitudinal gullet extends from the face surface along at least a portion of the drill body. A cartridge adjacent the face surface is selectively slidable along the directional feature, and a cutting face having an insert pocket positioned adjacent the edge of the drill body in which an insert is releasably affixed.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: July 9, 2013
    Assignee: Allied Machine & Engineering Corporation
    Inventors: Mark D. Meyer, Kevin D. Myers
  • Patent number: 8480337
    Abstract: A drill has inner and outer inserts. The drill includes a drill body having a rotational axis; an inner insert mounted adjacent to the axis at a proximal end of the drill body having an axis-symmetrical contour having four cutting edges and four rounded corners; and an outer insert identical to the inner insert being mounted farther away from the axis than the inner insert. Loci of the inner and the outer insert partially overlap. At the overlapping region, the cutting edge of the inner insert and the cutting edge of the outer insert extend toward the axis in a direction to a workpiece and the locus of the cutting edge of the inner insert protrudes in a direction to the workpiece along the axis of the drill body compared to the locus of the cutting edge of the outer insert.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: July 9, 2013
    Assignee: TaeguTec, Ltd.
    Inventor: Byung Gyun Bae
  • Patent number: 8449227
    Abstract: A rotatable tool for chip removing machining including a basic body and a loose top; the body includes two torque-transferring drivers and an intermediate bottom in which a rear coupling part of the loose top is receivable, and a center hole that mouths in the intermediate bottom. A centric pin is insertable into the center hole, and a screw is accessible from the outside of the basic body. The coupling part includes a pair of side contact surfaces which cooperate with a pair of side support surfaces on the drivers of the basic body for the transfer of torque and negative axial forces between the coupling part and the drivers.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: May 28, 2013
    Assignee: Sandvik Intellectual Property AB
    Inventor: Åke Danielsson
  • Patent number: 8403604
    Abstract: Rotatable multi-operation tool including replaceable cutting inserts of different types, and a basic body rotatable around a center axis with rear and front ends from which there is extending rearward an envelope surface in which at least one chip space is countersunk, which opens in the envelope surface and in the front end. A first cutting insert type is mounted in a first insert seat formed in one side surface of the chip space in the immediate vicinity of the front end and included in a cavity opening in the front end for the cutting insert to partly protrude axially forward from the front end. A second cutting insert type is mounted in a second insert seat formed in the same side surface as the first insert seat and situated axially behind the first insert seat and included in a cavity opening in a part of the envelope surface.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: March 26, 2013
    Assignee: Sandvik Intellectual Property AB
    Inventor: Sture Sjöö
  • Patent number: 8393832
    Abstract: The invention relates to a tool (1) for machining workpieces, having a base body (3), at least one geometrically defined culling edge (15, 17) on which a face (21) abuts, a chip space (47, 53) associated with the cutting edge for receiving the chips removed by the cutting edge (15, 17), and a chip guide element (27, 29) associated with the cutting edge (15, 17). The tool is characterized in that the cutting edge (15, 17) together with the chip guide element (27, 29) forms a receiving gap (43, 45) which merges into the chip space (47, 53) and into which the chips removed by the cutting edge (15, 17) are introduced, and the chip guide element (27, 29) has a guide surface (39, 41) which, together with the face (21), forms a receiving channel (51) which abuts the receiving gap (43, 45).
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 12, 2013
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Patent number: 8393831
    Abstract: An indexable drill includes an insert attachment seat and a chip discharging groove formed so as to extend from a leading end surface to a trailing end side of the drill in the direction of the axis of rotation and through which chips generated by the cutting insert are discharged, and in that a wall surface defining the chip discharging groove at least partly includes a smoothed surface with a surface roughness of at most 0.5 ?m in terms of arithmetic average roughness Ra, the wall surface of the chip discharging groove is partly formed on a thinned wall portion thinned by the central edge attachment seat and the outer peripheral edge attachment seat, and a crossing portion between the first wall surface and the second wall surface in the thinned wall portion is rounded.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: March 12, 2013
    Assignee: Tungaloy, Corporation
    Inventor: Satoshi Onozawa
  • Patent number: 8376669
    Abstract: A drill includes a tool body having a fluted portion having a second end and a tool head portion, having a cutting tip and at least one cutting edge, removably connected to the second end of the fluted portion. The fluted portion includes a receiving pocket disposed in the second end and is defined by a peripheral side wall extending about the periphery of the receiving pocket. The tool head portion includes a driving projection configured to be inserted into the receiving pocket. The driving projection and receiving pocket have corresponding elongated, curvilinear, dog-bone shapes. The driving projection includes a first end portion, a second end portion, and a central portion disposed between connecting the first end portion and the second end portion. The first end portion and the second end portion each have a width that is substantially greater than a width of the central portion.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: February 19, 2013
    Assignee: Kennametal Inc.
    Inventors: Horst Manfred Jaeger, Peter Karl Mergenthaler, Berthold Heinrich Zeug
  • Patent number: 8371778
    Abstract: A cutting tool insert and holder therefore, the drill insert having a helical geometry corresponding to helical flutes in a drill body holder which enable the drill tool assembly to more efficiently remove chips from a hole during operation, the drill insert comprising a drill insert body having a first end opposite a second end, a plurality of helical flutes formed in the drill insert body, a plurality of cutting edges formed at the interfaces of the plurality of helical flutes and the first end of the drill insert body, and an aperture formed in each helical flute.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: February 12, 2013
    Assignee: Allied Machine & Engineering Corp.
    Inventors: Steven R. Stokey, Martin Alan Jackson, Joseph P. Nuzzi, Wendell E. Mast
  • Patent number: 8371777
    Abstract: A cutting tool including a body, a blade, a feed shaft, and a locking member. The body defines an axis and is adapted to be received by a spindle of a power tool. The blade is removably supportable on the body and rotatable about the axis for cutting a workpiece. A feed shaft is removably supportable in the body and rotatable about the axis for engaging a workpiece, the feed shaft being mountable in the cutting tool to engage and at least partially restrain the blade. The feed shaft further includes an opening transverse to the axis. The locking member is engageable with the body and with the opening in the feed shaft. Advancement of the locking member into the opening tightens both the blade and the feed shaft to the body.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: February 12, 2013
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Douglas Allen, Richard Hohnl, Jr.
  • Patent number: 8360694
    Abstract: A rotatable multi-operation tool for chip removing machining, including a plurality of replaceable cutting inserts of different types, and a basic body that is rotatable around a center axis and includes a rear end and a front end from which there is extending rearward an envelope surface in which at least one chip space, delimited by two opposite side surfaces, is countersunk, which opens in the envelope surface and in the front end. A first cutting insert is mounted in a first insert seat that is formed in one side surface of the chip space and situated in the immediate vicinity of the front end and included in a cavity that opens in the front end for the cutting insert to partly protrude axially forward from the front end. A second cutting insert, of a type other than the first cutting insert, is mounted in a second insert seat, which is formed in the same side surface as the first insert seat and situated axially behind the first insert seat.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: January 29, 2013
    Assignee: Sandvik Intellectual Property AB
    Inventor: Sture Sjöö
  • Patent number: 8360693
    Abstract: In one advantageous embodiment, an apparatus may comprise a boring bar, a slot, a channel, a centering pin, and an adjustment system. The slot may extend substantially perpendicular to an axis extending through the boring bar. The slot may be configured to receive a cutting unit. The channel may be located within the boring bar extending substantially along the axis. The centering pin may be moveably located within the channel and configured to selectively engage a centering feature in the cutting unit. The adjustment system may be configured to position the centering pin relative to the channel in a plurality of axes.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: January 29, 2013
    Assignee: The Boeing Company
    Inventors: Michael D. Katzenberger, Ike C. Schevers, James A. Hammond, Jr., George E. Anderson
  • Patent number: 8328477
    Abstract: A cutting tool including a body, a blade, a feed shaft, and a locking member. The body defines an axis and is adapted to be received by a spindle of a power tool. The blade is removably supportable on the body and rotatable about the axis for cutting a workpiece. A feed shaft is removably supportable in the body and rotatable about the axis for engaging a workpiece, the feed shaft being mountable in the cutting tool to engage and at least partially restrain the blade. The feed shaft further includes an opening transverse to the axis. The locking member is engageable with the body and with the opening in the feed shaft. Advancement of the locking member into the opening tightens both the blade and the feed shaft to the body.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: December 11, 2012
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Douglas Allen, Richard Hohnl, Jr.
  • Patent number: 8317438
    Abstract: A twist drill having at least two cutting inserts at the tip each with its own J-shaped chip guiding flute and a method for the production thereof.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: November 27, 2012
    Assignee: Kennametal Inc.
    Inventor: Peter Karl Mergenthaler
  • Publication number: 20120257939
    Abstract: Reaming tool includes a head and one or more detachable cutting inserts fixed in seats. The seat includes radial, tangential and axial support surfaces, while the cutting insert has a mirror-symmetrical polyhedron shape comprising six limiting surfaces, viz. two chip surfaces and four clearance surfaces, a number of alternately usable identical cutting edges formed in the transitions between the chip and clearance surfaces. The cutting insert has a rhombic cross-sectional shape with four clearance surfaces, which meet each other in pairs at obtuse angles in two opposite corners, and which, along each individual chip surface, form two cutting edges alternately usable by indexing the cutting insert. The seat additionally includes a slope surface forming an obtuse angle with the radial support surface, suitably of the same magnitude as the obtuse angle between the clearance surfaces of the cutting insert. Tool head and reaming insert for the tool are disclosed.
    Type: Application
    Filed: December 23, 2011
    Publication date: October 11, 2012
    Inventor: Per Hansson
  • Patent number: 8257001
    Abstract: A tool system having at least two tool parts with opposed end contact surfaces which bear against one another in the region of an interface. The contact surfaces have a tooth system thereon including intermeshing teeth and recesses. The tooth system is shaped and positioned such that the contact surfaces can be fitted together only in at least one defined rotary angle position with respect to the center axis of the tool parts.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: September 4, 2012
    Assignee: Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
    Inventors: Dieter Kress, Friedrich Häberle
  • Patent number: 8226333
    Abstract: A cutting tool, and a loose top therefore, includes two parts detachably connected to each other via a threaded joint in which co-operating male and female threads are included in the form of helicoidal ridges. The profile shape of each helicoidal ridge is defined by a top and two flanks, which delimit a helicoidal groove having a bottom. The first flank is inclined in relation to a center axis of the tool at a first angle that is smaller than a second angle of the second flank in relation to the center axis. Accordingly, the thread ridge is reinforced in comparison with thread ridges having a symmetrical profile shape, whereby larger tensile forces than compressive forces can be applied to the threaded joint while avoiding damage to the thread ridges.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: July 24, 2012
    Assignee: Sandvik Intellectual Property AB
    Inventors: Isak Kakai, Ralf Lehto, Kenneth Larsson, Magnus Örtlund
  • Patent number: 8192114
    Abstract: A drill holding tool includes a shaft and a drill-holding portion which has a recess defined axially in an outer periphery thereof so as to receive a flat center drill therein which has one end protrudes out from the distal end of the drill-holding portion. The recess is defined by two sidewalls and a bottom surface, and a threaded hole is defined through the bottom surface. Two semi-circular reception holes are defined in two insides of the two sidewalls and two positioning pieces are received in the reception holes. The center drill includes a positioning hole corresponding to the threaded hole in the recess and two semi-circular positioning notches in which the two positioning pieces are partially received. The center drill is a flat piece which saves material required and the positioning notches allow the center drill to be quickly and precisely positioned.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: June 5, 2012
    Inventor: Hsin-Tien Chang
  • Patent number: 8092126
    Abstract: An indexable drill is offered which enables suitable integration of a drill body and cutting insert. The crosshatch angles of clamp receiving faces of a cutting insert which are respectively pressed by clamp faces and of torque receiving faces which cross the clamp receiving faces and are adjacent thereto and to which is transmitted the rotary force of the drill body from the torque transmission faces are formed smaller within a range of 2° or less which is less than the crosshatch angles of clamp faces which clamp and hold the cutting insert of the drill body and torque transmission faces which cross these clamp faces and are adjacent thereto and which transmit the rotary force of the drill body to the cutting insert.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: January 10, 2012
    Assignee: Mitsubishi Materials Corporation
    Inventor: Shogo Tanaka
  • Patent number: 8066457
    Abstract: The invention relates to a machine tool, particularly a machine reamer, comprising a shaft-type base and a replaceable cutter head which frontally protrudes from the base. An axially protruding extension of said cutter head engages into a frontal receptacle that is fixed to the base, the cutter head being removably clamped in said receptacle by means of a clamping screw which penetrates the replaceable cutter head in a truly axial direction. The screw head of the clamping screw rests against a face of the replaceable cutter head. The extension of the replaceable cutter head is provided with a polygonal part which is complementary to a truly axial polygonal hole that is fixed to the base and is penetrated by the polygonal part.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: November 29, 2011
    Assignee: Komet Group GmbH
    Inventors: Otto Buettiker, Roman Eigenmann, Jacek Kruszynski
  • Patent number: 8061938
    Abstract: A twist drill has double margins and a chisel edge angle of between 80 degrees and 100 degrees to maximize hole straightness and to minimize “walking” of the drill upon a workpiece. The drill may be modular having a removable tip body or the drill may be of a solid configuration. A tip body is consumable and may be removed and replaced as required.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: November 22, 2011
    Assignee: Kennametal Inc.
    Inventors: Karthik Sampath, Juergen Schwaegerl
  • Publication number: 20110236145
    Abstract: A rotatable tool for chip removing machining, including a basic body having front and rear ends between which there extends a first geometrical center axis (C1) around which the basic body is rotatable in a predetermined direction of rotation, and a loose top having front and rear ends between which a second geometrical center axis (C2) extends. The front end of the basic body includes a jaw, which is delimited by two drivers and an intermediate bottom and in which a part of the loose top is received. A centering pin protrudes axially rearward from the loose top and is inserted in an axial center hole, which mouths in the bottom of the jaw and in which a threaded hole mouths for a screw co-operating with the center pin. The center hole includes a cylindrical support surface, which is concentric with the center axis (C1) of the basic body and against which the centering pin of the loose top is pressed by the screw.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 29, 2011
    Applicant: Sandvik Intellectual Property AB
    Inventors: Helena PÄBEL, Magnus Aare
  • Patent number: 7997836
    Abstract: An indexable type cutting tool includes a drill having a shank and a drill body which extends from the shank, the drill body being defined with body flutes, and being formed with an insert seat which has seat side surfaces and a seat bottom surface and body flank surfaces and body thinning surfaces; a drill insert fitted into the insert seat of the drill body, having cutting edges and an insert bottom surface which is brought into close contact with the seat bottom surface, formed with insert flutes and insert side surfaces which are brought into close contact with the seat side surfaces, and defined with a through-hole which passes through the insert side surfaces; and a fastening screw for fastening the drill insert fitted into the insert seat to the drill.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: August 16, 2011
    Assignee: Korloy Inc.
    Inventors: Young-Heum Kim, Joo-Oh Kim, Kwan-Hee Lee, Hak-Kyu Kim
  • Patent number: 7980794
    Abstract: A ring with a cutting edge detachably fixed to a drilling tool, and machines the peripheral edge of a hole bored by the drilling tool can be simply attached to the drilling tool.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: July 19, 2011
    Assignee: Mitsubishi Materials Corporation
    Inventor: Yasuhiko Kawade
  • Patent number: 7980795
    Abstract: A multi-piece tool assembly includes a male threaded member having an external thread, and a female threaded member having an opening adapted to receive at least part of the male threaded member up to a predetermined depth and an internal thread adapted to mate with the external thread of the male threaded member. When the male threaded member is received in the opening to the predetermined depth, substantially all forces between the external thread and the internal thread are oriented along an axis of the female threaded member, a working portion of the tool assembly being provided on one of the male threaded member and the female threaded member.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: July 19, 2011
    Assignee: Seco Tools AB
    Inventors: Karl-Erik Berglöw, Christer Jönsson
  • Patent number: 7972094
    Abstract: A rotary cutting tool having a longitudinal axis defining forward and rearward directions and a direction of rotation, includes a cutting head releasably mounted to a front end of a tool shank. The cutting head includes a cap portion and a rearwardly extending tail portion. The cap portion is provided with a plurality of head segments, each head segment having a rotationally leading end facing the direction of rotation and a rotationally trailing end. The trailing end of each head segment is provided with a locking member which extends in a direction opposite the direction of rotation. The tool shank has a forward end provided with a corresponding plurality of locking recesses opening out to the direction of rotation, and a shank pocket recess. In the assembled tool, the tail portion of the cutting head is received into the shank pocket recess and each of the plurality of locking members is received into a corresponding locking recess.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: July 5, 2011
    Assignee: Iscar, Ltd.
    Inventors: Daniel Men, Philip Shaheen