Wear Shield Or Replaceable Wear Sleeve Patents (Class 299/104)
  • Patent number: 10458234
    Abstract: A pick for mineral winning includes an elongate shank configured to be positioned into a cavity of a holder. A profile is defined on an outside surface of the shaft which includes a first surface formed into the profile and disposed to receive a leveraging device to enable a first forced translational movement of the shaft relative to the holder, and a second surface formed into the profile and disposed to receive the leveraging device to enable a second forced translational movement of the shaft relative to the holder.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 29, 2019
    Assignee: ESCO GROUP LLC
    Inventors: Mark Alexander Cheyne, Jack Charles Rickey
  • Patent number: 10450579
    Abstract: This disclosure describes screening a population of transgenic plants derived from plant cells transformed with recombinant DNA for expression of proteins with homeobox domains to identify plant cells of specific transgenic events that are useful for imparting enhanced traits to transgenic crop plants. Traits include enhanced nitrogen use efficiency, increased yield, enhanced water use efficiency, enhanced tolerance to cold stress and/or improved seed compositions. Also disclosed are transgenic seeds for growing a transgenic plant having the recombinant DNA in its genome and exhibiting the screened enhance trait. Also disclosed are methods for generating seed and plants based on the transgenic events.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: October 22, 2019
    Assignee: Monsanto Technology LLC
    Inventors: Paul S. Chomet, Donald C. Anstrom, Jacqueline E. Heard, Adrian Lund, Jill Deikman
  • Patent number: 10260341
    Abstract: The present invention relates to a pick, in particular, a round shaft pick, having a pick head and a pick shaft, having a support element which has a centring lug on the underside thereof, wherein the centring lug has a centring surface which extends inclined with respect to the central longitudinal axis of the pick and merges into a seat surface. To this end circumferential channel according to the present invention is disposed in the transition region from the centring surface to the seat surface and the depth of the channel relative to the seat surface is greater than or equal to 0.3 mm. The pick has an optimised rotatability and thus a low wear.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 16, 2019
    Assignee: Betek GmbH & Co. KG
    Inventors: Karl Kammerer, Heiko Friederichs
  • Patent number: 10233751
    Abstract: A tool adapter comprises a body including at least one elongated portion defining a longitudinal axis, a first end and a second end disposed along the longitudinal axis, a flange disposed between the first and second ends along the longitudinal axis, and an exterior surface extending along the longitudinal axis, and a collar portion defining a collar outer surface and the body defines a first groove disposed adjacent the first end extending along the longitudinal axis on the outer collar surface along the majority of the longitudinal length of the collar portion.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: March 19, 2019
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Kevin James Magee, Mario Persano, Dario Sansone
  • Patent number: 10184336
    Abstract: A tool holder is disclosed for use with a milling drum. The tool holder may have a cylindrical body defining a first end and a second end, the first end configured to be received within a tool mounting block of the milling drum, the second end configured to receive a cutting bit. A flange may be located between the first and second end with respect to an axial direction, and a first bore, with a first opening defined by the second end and extending towards the first end. A frustoconical portion may be located between the flange and the first end with respect to the axial direction and a cylindrical portion located between the flange and the first end. At least one radial opening may pass through at least the wall of the cylindrical portion to intersect or be open to the first bore.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Paving Products Inc.
    Inventor: Dario Sansone
  • Patent number: 10167720
    Abstract: A tool holder is disclosed for use with a milling drum. The tool holder may have a cylindrical body defining a first end and a second end, the first end configured to be received within a tool mounting block of the milling drum, the second end configured to receive a cutting bit. A flange may be located between the first and second end with respect to an axial direction, and a first bore, with a first opening defined by the second end and extending towards the first end. A frustoconical portion may be located between the flange and the first end with respect to the axial direction and a cylindrical portion located between the flange and the first end. At least one radial opening may pass through at least the wall of the cylindrical portion to intersect or be open to the first bore.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: January 1, 2019
    Assignee: Caterpillar Paving Products Inc.
    Inventor: Kevin Magee
  • Patent number: 10113424
    Abstract: A tool holder is disclosed for use with a milling drum. The tool holder may have a cylindrical body defining a first end and a second end, the first end configured to be received within a tool mounting block of the milling drum, the second end configured to receive a cutting bit. A flange may be located between the first and second end with respect to an axial direction, and a first bore, with a first opening defined by the second end and extending towards the first end. A frustoconical portion may be located between the flange and the first end with respect to the axial direction and a cylindrical portion located between the flange and the first end. At least one radial opening may pass through at least the wall of the cylindrical portion to intersect or be open to the first bore.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 30, 2018
    Assignee: Caterpillar Paving Products Inc.
    Inventor: Dario Sansone
  • Patent number: 10072501
    Abstract: An improved bit holder includes a larger bit shank bore and an enlarged upper shank segment or band with a taper of up to 7 degrees per side that provides an interference fit between the top of the shank and top of the bit block bore when the bottom of the bit holder body seats on the top of the bit block bore. An annular tapered void adjacent the bit holder tire portion provides for ease of bit holder extraction.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: September 11, 2018
    Assignee: The Sollami Company
    Inventor: Phillip Sollami
  • Patent number: 9879531
    Abstract: Improved bit holder/bit holder block structure provides increased access to the rear of the assembly allowing bit holder blocks to be mounted closer to each other for micro-milling operations. Shortened bit holder shanks are reconfigured from prior art to provide increased holding power between the bit holder shank and bit holder block bore.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: January 30, 2018
    Assignee: The Sollami Company
    Inventor: Phillip Sollami
  • Patent number: 9803479
    Abstract: In such fields as road milling, mining and trenching it is often desirable to engage and degrade tough materials such as asphalt, concrete and rock. To do so, degradation picks comprising hardened tips may be secured to an exterior of a rotatable drum so as to be repeatedly brought into contact with a surface of a material to be degraded. To secure such degradation picks to the rotatable drum, a toroidal body comprising an interior surface rigidly attachable to the rotatable body and an exterior surface comprising a plurality of bore holes disposed there around may receive a plurality of degradation picks secured within the bore holes.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: October 31, 2017
    Assignee: NOVATEK IP, LLC
    Inventors: David R. Hall, Ronald B. Crockett, Dwain Norris
  • Patent number: 9790790
    Abstract: The present invention relates to a chisel device for a ground milling machine, comprising a chisel holder having a mounting orifice and a milling chisel, wherein the milling chisel has a basic body of, in particular, a uniform material and has a shaft and a tool region, said shaft being held, under working conditions, in the mounting orifice while the tool region (P) protrudes, under working conditions, from the chisel holder, wherein said milling chisel has a wear protection cap consisting of carbide and having a tip and a protective jacket, wherein the wear protection cap is positioned on the tool region (P) in such a manner that it covers at least 70% of the external surface of the tool region (P). The present invention also relates to a milling chisel for such a chisel device.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: October 17, 2017
    Assignee: BOMAG GmbH
    Inventors: Robert Laux, Joachim Hermes, Arne Schlichting, Daria Hefter, Monica Wolf, Domenico Muscara, Bernd Raufelder
  • Patent number: 9695688
    Abstract: The present invention relates to a round-shaft chisel arrangement with a chisel, comprising a chisel shaft and a chisel tip, a clamping sleeve and a retaining ring. The present invention further relates to a retaining ring for such a round-shaft chisel arrangement and a set comprising a clamping sleeve and a retaining ring. A further aspect of the present invention relates to a method for securing a round-shaft chisel against axial displacement in a chisel retainer.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: July 4, 2017
    Assignee: BOMAG GmbH
    Inventors: Steffen Wachsmann, Monica Wolf
  • Patent number: 9605486
    Abstract: A cutting element is disclosed that includes a sleeve, a rotatable cutting element, and at least one retaining ring. The sleeve has a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. The rotatable cutting element has an axis of rotation extending therethrough, a cutting face, a body extending axially downward from the cutting face, wherein the body has a shaft that is disposed within the sleeve, and a circumferential groove formed around an outer surface of the shaft. The at least one retaining ring is disposed in the circumferential groove and extends at least around the entire circumference of the shaft, wherein the at least one retaining ring protrudes from the circumferential groove, thereby retaining the rotatable cutting element within the sleeve.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: March 28, 2017
    Assignee: Smith International, Inc.
    Inventors: Yuri Burhan, Jibin Shi, Chen Chen, Youhe Zhang
  • Patent number: 9441421
    Abstract: An improved tooth for a roller crusher is presented. The tooth can include a first tungsten carbide overlay layer plasma-transfer arc welded on a recessed hemispherical end of the tooth, which is covered by a wearable cap placed over the first overlay layer, the cap welded to the tooth. A second tungsten carbide overlay layer can then be plasma-transfer arc welded over the cap to, thereby, provide a tooth having two tungsten carbide overlay wear layers.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: September 13, 2016
    Assignee: Bradken Canada Ltd.
    Inventors: Jonathan Daniel Curlett, Nolan Brian Serink
  • Patent number: 9422812
    Abstract: A cutting tool mounting assembly adapted for receiving a cutting tool includes a base having a bottom portion and a front portion that defines a receptacle having an inner wall and a bushing configured for receipt in the receptacle of the base. The bushing includes: a forward face defining an aperture for receiving the cutting tool; a shoulder generally opposite the forward face, the shoulder configured for cooperating with the front portion of the base; and a shank portion extending rearward from the shoulder, the shank portion having an outer surface configured for cooperating with the inner wall of the receptacle. A first elastomeric layer is positioned between the shoulder of the bushing and the front portion of the base and a second elastomeric layer is positioned between the outer surface of the shank portion and the inner wall of the receptacle.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: August 23, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Nicholas J. Paros, Chad A. Swope, Donald E. Keller
  • Patent number: 9399914
    Abstract: The invention relates to a bit holder for a road milling machine or the like, having a base part on which a bit shank and a projection are shaped, the projection comprising a bit receptacle, and the bit receptacle being constituted from a socket-shaped insert made of hard material. With a bit holder of this kind, good rotational behavior of the bit can be assisted and stable bracing thereof can be guaranteed, with little parts outlay, if provision is made that the bit receptacle is embodied as a stepped bore that comprises a first and a second diameter region, the first diameter region having a larger inside diameter than the second diameter region.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: July 26, 2016
    Assignee: Wirtgen GmbH
    Inventors: Markus Roth, Thomas Allgaier, Thomas Lehnert
  • Patent number: 9359894
    Abstract: A cutting bit and bit assembly for mounting at a cutting machine. The bit includes an axially tapered bit body having a recess extending axially within the body. The recess has an innermost region and a mouth region that is generally convex and/or tapered radially outward to abut a corresponding concave or tapered surface of a projection to secure the cutting bit at a holder body. An annular step is positioned within the recess at the mouth region to prevent dust and contaminant fluid or particles from passing axially into the recess.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: June 7, 2016
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Hannes Voitic, Joe Fader
  • Patent number: 9234424
    Abstract: A bit assembly includes a bit having a bit head and a bit shank, a mounting sleeve being held in the region of the bit shank, and a support element that comprises a guidance region being associated with the bit. To allow the bit to be easily deinstalled from the bit receptacle and allow it, if applicable, to be easily installed again, provision is made that the support element comprises, in the region of its underside facing away from the bit head, a deflection segment.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: January 12, 2016
    Assignee: BETEK GmbH
    Inventors: Thomas Lehnert, Heiko Friederichs
  • Patent number: 9222354
    Abstract: The invention relates to a tool system having a bit holder and a shank bit, the bit holder comprising a bit receptacle that comprises a first and a second diameter region that lead into one another via a transitional segment (taper), a bit shank of the shank bit comprising a first and a second cross-sectional region that lead into one another via a transitional segment. With a tool system of this kind, a wear-optimized design results from the fact that the transitional segments of the shank bit and of the bit holder are arranged spaced away from one another in the direction of the longitudinal center axis of the shank bit, in order to form a resetting space.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: December 29, 2015
    Assignee: Wirtgen GmbH
    Inventors: Thomas Allgaier, Thomas Lehnert, Markus Roth
  • Patent number: 9074472
    Abstract: A bit assembly includes a bit having a bit head and a bit shank, a mounting sleeve being held in the region of the bit shank, and a support element that comprises a guidance region being associated with the bit. To allow the bit to be easily deinstalled from the bit receptacle and allow it, if applicable, to be easily installed again, provision is made that the support element comprises, in the region of its underside facing away from the bit head, a deflection segment.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: July 7, 2015
    Assignee: BETEK GmbH & Co. KG
    Inventors: Thomas Lehnert, Heiko Friederichs
  • Patent number: 9028008
    Abstract: A cutting tool assembly for mounting in a bore of a holder includes a cutting tool having a head, a shank and a collar therebetween having an axially rearward surface that defines an annular channel adjacent an axially forward end of the shank. The assembly also includes a retainer sleeve substantially surrounding the shank and defining a slot that extends from an axial forward end to an axial rearward end of the retainer sleeve. The retainer sleeve is compressible between an expanded state and a compressed state. The assembly further includes a compression band removably attached to the retainer sleeve. The compression band in a first position is attached to the retainer sleeve and compresses the retainer sleeve to the compressed state and in a second position is not attached to the retainer sleeve and the retainer sleeve is in the expanded state.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: May 12, 2015
    Assignee: Kennametal Inc.
    Inventor: Paul A. Bookhamer
  • Publication number: 20150091365
    Abstract: The present invention relates to a chisel device for a ground milling machine, comprising a chisel holder having a mounting orifice and a milling chisel, wherein the milling chisel has a basic body of, in particular, a uniform material and has a shaft and a tool region, said shaft being held, under working conditions, in the mounting orifice while the tool region (P) protrudes, under working conditions, from the chisel holder, wherein said milling chisel has a wear protection cap consisting of carbide and having a tip and a protective jacket, wherein the wear protection cap is positioned on the tool region (P) in such a manner that it covers at least 70% of the external surface of the tool region (P). The present invention also relates to a milling chisel for such a chisel device.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 2, 2015
    Inventors: Robert Laux, Joachim Hermes, Arne Schlichting, Daria Hefter, Monica Wolf, Domenico Muscara, Bernd Raufelder
  • Patent number: 8911024
    Abstract: A tool holder is disclosed for use with a milling drum. The tool holder may have a generally cylindrical body defining a first end configured to be received within a tool mounting block of the milling drum, and a second end configured to receive a cutting bit. The tool holder may also have a flange located between the first end and the second end, and a first blind bore initiating at the second end and stopping at the flange such that the generally cylindrical body is substantially solid at the flange. The tool holder may further have at least one sloped surface located at a side of the flange facing the first end of the generally cylindrical body.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: December 16, 2014
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Anne K. Fundakowski, Benjamin T. Schafer, Joseph D. Koehler, David N. Peterson
  • Patent number: 8870297
    Abstract: A kicker paddle is disclosed for use with a reclaiming drum. The kicker paddle may have a block with a first end and a second end. The kicker paddle may also have a mounting mechanism located between the first and second ends. The kicker paddle may be symmetric relative to a plane passing through the mounting mechanism that is parallel to the first and second ends.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: October 28, 2014
    Assignee: Caterpillar Inc.
    Inventors: Nicholas R. Pederson, Brian J. Schlenker, Maria L. Biberdorf, Jason W. Muir
  • Patent number: 8857918
    Abstract: A cutting tool holding device includes a base, a positioning tube and a positioning member. The base includes a mounting hole and a through hole, and the through hole is formed at a side of the mounting hole and communicated with the mounting hole. The positioning tube includes an axial receiving hole, an accommodated portion and a limiting groove. The axial receiving hole is formed within the positioning tube for receiving a cutting tool. The accommodated portion is disposed at an end of the positioning tube for being installed into the mounting hole. The limiting groove is formed on a side of the accommodated portion. The positioning member is positioned in the through hole of the base, wherein the positioning member abuts against the limiting groove of the positioning tube.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: October 14, 2014
    Assignee: Everpads Co., Ltd.
    Inventor: Chun-Li Chiang
  • Publication number: 20140239700
    Abstract: The present invention relates to a milling drum for a ground milling machine, wherein a material guiding device is provided, which diverts the milled material in the direction of stagger of milling devices disposed one behind the other, as regarded in the direction of rotation. For this purpose, in particular, a wear plate is provided, which can be selectively replaced on the material guiding device. A further aspect of the present invention relates to such a material guiding device and also to a wear plate for such a material guiding device.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 28, 2014
    Applicant: BOMAG GmbH
    Inventor: Steffen Wachsmann
  • Publication number: 20140225418
    Abstract: A pick tool assembly comprising a working tip, a base and at least one wear protector element. The working tip is attached to the base and the base comprises an attachment member for coupling the base to a driving mechanism. The working tip comprises super-hard material, the base comprises a first material and the wear protector element comprises a second material having greater abrasive wear resistance than the first material. The base and wear protector element are cooperatively configured so that wear protector element is mechanically securable to the base.
    Type: Application
    Filed: September 19, 2012
    Publication date: August 14, 2014
    Inventors: Frank Friedrich Lachmann, Bernd Heinrich Ries
  • Publication number: 20140217806
    Abstract: The invention relates to a tool system having a bit holder and a shank bit, the bit holder comprising a bit receptacle that comprises a first and a second diameter region that lead into one another via a transitional segment (taper), a bit shank of the shank bit comprising a first and a second cross-sectional region that lead into one another via a transitional segment. With a tool system of this kind, a wear-optimized design results from the fact that the transitional segments of the shank bit and of the bit holder are arranged spaced away from one another in the direction of the longitudinal center axis of the shank bit, in order to form a resetting space.
    Type: Application
    Filed: October 11, 2012
    Publication date: August 7, 2014
    Applicant: Betek GmbH & Co. KG
    Inventors: Thomas Allgaier, Thomas Lehnert, Markus Roth
  • Patent number: 8783785
    Abstract: The invention relates to a bit holder (20) for a cutting machine, road milling machine, surface miner, or the like, having a bit receptacle (29) that comprises an introduction opening, and having a bit supporting surface (26), at least one wear protection element (40) being arranged in a region associated with the bit supporting surface (26). In order to bring about effective wear protection with little outlay in a bit holder of this kind, provision is made according to the present invention that the at least one wear protection element is embodied as a weld (40), and is arranged at least locally in at least one recess (41).
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: July 22, 2014
    Assignee: Wirtgen GmbH
    Inventors: Thomas Lehnert, Christian Berning, Martin Lenz
  • Patent number: 8777326
    Abstract: A pick assembly comprising a pick body comprising a shank opposite a front end. The shank may be configured for attachment to a driving mechanism while the front end may comprise a core assembly disposed within an axial bore of the front end. The core assembly may comprise a cutting element bonded to a substrate attached to a bolster disposed within a sleeve which is disposed within the axial bore.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: July 15, 2014
    Inventor: David R. Hall
  • Publication number: 20140191563
    Abstract: The invention relates to a device for machining and/or conveying materials, comprising a roller element rotatably supported about a longitudinal axis, at least one tool holder, a support element for supporting a cutting tool and a cutting tool, wherein the tool holder includes a receiver in which the support element is received in a form locking manner and the support element includes a bore hole. In order to configure the support element that is provided for holding the cutting tool engaging the material so that it can be exchanged in a much simpler manner it is proposed to arrange the fixation element coaxial with the support element, wherein the fixation element is connected with the support element through a threaded connection.
    Type: Application
    Filed: January 9, 2013
    Publication date: July 10, 2014
    Inventor: Henk Roland van Marum
  • Patent number: 8770669
    Abstract: A cutting tool configuration for a ground milling machine, for example, a cold milling machine or a mining drill, is provided. The cutting tool configuration comprises a cutter holder, which is fastenable or fastened on a milling drum, a cutting tool, which is fastened on the cutter holder, and which is inserted using its cutting tool shaft in a cutter holder bore of the cutter holder and can rotate around its longitudinal axis, and a wear disc, which is situated rotation-locked between a stop surface of the cutter holder and the cutting tool head of the cutting tool, it being provided that the rotation lock between the wear disc and the cutter holder is caused by at least one groove formed on the outer circumference of the wear disc and a guide formed on the cutter holder and engaging in this groove. A wear disc for use in such a cutting tool configuration, and a cutting tool having such a preinstalled wear disc, are also provided.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: July 8, 2014
    Assignee: BOMAG GmbH
    Inventors: Steffen Wachsmann, Peter Erdmann
  • Publication number: 20140152074
    Abstract: An arrangement for fixing a pick to a cutting tool of a cutting machine includes a pick holder and a rotationally symmetrical pick sleeve, which is detachably fixed against an axial stop by surface pressure in a conical receiving element of the pick holder. The pick sleeve has an axial length that is greater than the axial length of the receiving element of the pick sleeve. A part of the pick sleeve that protrudes with respect to the edge of the receiving element when fixed has, on the outer diameter thereof, a conical bevel, which is inclined inwards.
    Type: Application
    Filed: May 3, 2012
    Publication date: June 5, 2014
    Applicant: SANDVIK MINING AND CONSTRUCTION G.M.B.H.
    Inventors: Roman Gerer, Raif Grief
  • Patent number: 8678516
    Abstract: A polygonal shaped shield washer for mounting on a pick holder having a mating polygonal shaped barrel, the washer including a top having an interior opening and outer periphery defined by plurality of edges, each pair of adjacent edges being joined at a corner, and a skirt extending rearwardly from the outer periphery of the top, the skirt having a plurality of edges and corners aligned with the edges and corners of the top.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: March 25, 2014
    Assignee: Sandvik Intellectual Property AB
    Inventors: Joseph Fader, Kenneth Monyak, Daniel Mouthaan
  • Patent number: 8661640
    Abstract: A system for extraction of a mineral cutter pick (1), and optionally any interposed sleeve (19), the pick (1) comprises an elongate shank (4) extending from an enlarged head (2), has a piston (12) coaxial with the shank (4), with one end face (16) of the piston (12) subjectable to hydraulic pressure fluid, and with another, opposite end face (15) of the piston (12) capable of engaging an end face (5) of the shank (4), a sealing ring (14) to prevent passage of hydraulic fluid being carried by the piston (12), whereby axial movement of the piston (12), under hydraulic pressure, in turn axially displaces the pick (1), while further movement of the piston (12) results in extraction, if required, of sleeve (19).
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: March 4, 2014
    Assignee: Minnovation Limited
    Inventor: George Albert Parrott
  • Patent number: 8657385
    Abstract: An assembly is disclosed including a holder block, a cutting pick, and an optional hollow sleeve, wherein the shank of the cutting pick is inserted into the holder block or, where present, into the hollow sleeve. When assembled, surfaces of the components meet at an interface. At least one of the first interface and the second interface includes one or more sets of wear elements including cemented carbide bodies press fit into recesses in the forwardly oriented surfaces meeting at the interfaces. The wear elements mitigate direct contact between the opposing surfaces of the components at the interfaces and prevents excessive wear from repetitive impact because the harder wear elements, e.g., cemented carbide, are contact points between the opposing surfaces of the components at the interfaces. A machine incorporating the assembly and a method of manufacturing the assembly are also disclosed, particularly a machine for mining, excavating, tunneling, road planing and/or construction.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: February 25, 2014
    Assignee: Sandvik Intellectual Property AB
    Inventors: Joseph Fader, Kenneth Monyak, Daniel Mouthaan, Joseph J. Redman
  • Patent number: 8628148
    Abstract: A holder block assembly for a drum-type cutting tool has a holder block, a sleeve, and a piston carried in a piston channel formed in the holder block. The sleeve includes a shank and an enlarged flange at an end of the shank. The sleeve shank is received in a hole in the holder block, with the shank and hole wall forming a number of axially spaced interference fits. A source of pressurized fluid applied to the holder block forces the piston against the sleeve to extract the sleeve from the holder block. Sealing structure between the piston and the holder block prevents the release of hydraulic fluid when the sleeve is released.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: January 14, 2014
    Assignee: ESCO Windber Inc.
    Inventor: William P. Sulosky
  • Publication number: 20130334866
    Abstract: A kicker paddle is disclosed for use with a reclaiming drum. The kicker paddle may have a block with a first end and a second end. The kicker paddle may also have a mounting mechanism located between the first and second ends. The kicker paddle may be symmetric relative to a plane passing through the mounting mechanism that is parallel to the first and second ends.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 19, 2013
    Inventors: Nicholas R. PEDERSON, Brian J. Schlenker, Maria L. Biberdorf, Jason W. Muir
  • Patent number: 8602503
    Abstract: A base block for a cutting drum is disclosed. The base block may have a first end. The first end may have an opening configured to receive a tool. The first end may also have a flat surface surrounding the opening. The base block may have a second end configured to abut the cutting drum. The base block may further have an internal passageway commencing at the opening configured to receive the tool. The passageway may define a longitudinal axis that is offset by an acute angle from being perpendicular to the flat surface.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: December 10, 2013
    Assignee: Caterpillar Pavinq Products Inc.
    Inventors: Gregory Henry Dubay, Kevin W. Ingall, Randall Steven Kessler
  • Patent number: 8596725
    Abstract: A tool pick assembly and a tool and block assembly are disclosed. A sleeve is positioned about the shank to allow rotation of the tool pick and also friction fit with the block. The sleeve is stepped in complement to the shape of the surface of the shank of the tool pick and the shape of the surface of the bore in the tool holder and extends substantially all of the length, optionally all of the length, of the stepped bore in the block to reduce or prevent dust and fines from entering and wearing the bore surface. When assembled, the stepped sleeve and complementarily shaped shank of the tool pick each do not extend past the rear surface of the bore to mitigate or prevent shank deformation from impact during use.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: December 3, 2013
    Assignee: Sandvik Intellectual Property AB
    Inventors: Kenneth Monyak, Joseph Fader
  • Publication number: 20130307316
    Abstract: The present invention relates to an interchangeable holder system comprising a basic module and an interchangeable holder for the accommodation of a cutting tool, which interchangeable holder is capable of being attached to the basic module, for the purpose of preparing ground surfaces, and to a construction machine, more particularly a stabilizer, a recycler, or a cold milling machine, comprising a milling device comprising such an interchangeable holder system.
    Type: Application
    Filed: November 9, 2011
    Publication date: November 21, 2013
    Applicant: BOMAG GMBH
    Inventors: Helmut Roetsch, Steffen Wachsmann, Peter Erdmann, Manfred Hammes, Niels Laugwitz
  • Publication number: 20130307317
    Abstract: A cutting bit includes an elongate body having a shank portion and a head portion with a forward end. The head portion has an annular channel defined therein adjacent to and rearwardly of the forward end of the head portion. The annular channel has an angled bottom surface. The cutting bit also includes a split wear ring positionable in the annular channel and structured and arranged to be retainably held in the annular channel. The cutting bit further includes a hard cutting tip affixed to the forward end of the head portion.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 21, 2013
    Applicant: KENNAMETAL INC.
    Inventors: Paul A. Bookhamer, Nicholas J. Paros
  • Publication number: 20130307318
    Abstract: The invention relates to a bit holder having an insertion projection and having a bore-shaped bit receptacle that has a longitudinal center axis, a convexly curved support surface being provided on a base part. A bit holder of this kind can be implemented in compact and stable fashion in particular by the fact that the longitudinal center axis of the bit receptacle intersects the support surface.
    Type: Application
    Filed: December 2, 2011
    Publication date: November 21, 2013
    Applicants: BETEK GmbH & Co. KG, WIRTGEN GmbH
    Inventors: Karl Kammerer, Markus Roth, Bernhard Diessner
  • Patent number: 8573707
    Abstract: An apparatus for mounting a cutting tool includes a retainer sleeve that defines at least one retention groove adjacent an axial forward end thereof and a washer removably attached to the retainer sleeve. The washer has a forward surface, a rearward surface and an interior surface that define a central opening, wherein the interior surface includes at least one protrusion extending inward into the central opening that is structured and arranged for cooperating with the at least one retention groove in the retainer sleeve. The retainer sleeve further defines a longitudinal slot that extends from an axial forward end to an axial rearward end of the retainer sleeve. The washer further includes a key extending inward into the central opening that is structured and arranged for cooperating with the longitudinal slot in the retainer sleeve.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: November 5, 2013
    Assignee: Kennametal Inc.
    Inventor: Chad A. Swope
  • Publication number: 20130270891
    Abstract: The subject matter of the invention is a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the insertion projection comprising at least one convex abutment surface and one pressure surface. In a bit holder of this kind, working forces can be dissipated in stress-optimized fashion into an attached base part when provision is made that the insertion projection comprises two convex abutment surfaces that are arranged at a distance from one another.
    Type: Application
    Filed: December 2, 2011
    Publication date: October 17, 2013
    Applicant: WIRTGEN GMBH
    Inventors: Thomas Lehnert, Karsten Buhr, Martin Lenz, Cyrus Barimani, Günter Hähn
  • Patent number: 8517473
    Abstract: A road grading pick includes a cutting head, a shank, a shoulder at a transition between the cutting head and the shank, and a polygonal-shaped washer or an oval-shaped washer. The shank is positioned in an opening of the washer to position the washer along a longitudinal length of the shank between a rearward end of the shank and the rearward facing surface of the shoulder. In a preinstalled position, the washer compresses a friction retainer on the shank of the road grading pick to facilitate seating of the road grading pick in a blade of a road grading apparatus. In an installed position on an adapter board for a moldboard of road grading equipment, the friction retainer is no longer in the opening of the washer and the washer prevents washer rotation and shields an underlying mounting surface while allowing rotation of the road grading pick.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: August 27, 2013
    Assignee: Sandvik Intellectual Property AB
    Inventors: Kenneth Monyak, Joseph Fader, Lars-Åke Carlsson
  • Publication number: 20130207444
    Abstract: A cutting tool holding device includes a base, a positioning tube and a positioning member. The base includes a mounting hole and a through hole, and the through hole is formed at a side of the mounting hole and communicated with the mounting hole. The positioning tube includes an axial receiving hole, an accommodated portion and a limiting groove. The axial receiving hole is formed within the positioning tube for receiving a cutting tool. The accommodated portion is disposed at an end of the positioning tube for being installed into the mounting hole. The limiting groove is formed on a side of the accommodated portion. The positioning member is positioned in the through hole of the base, wherein the positioning member abuts against the limiting groove of the positioning tube.
    Type: Application
    Filed: February 8, 2013
    Publication date: August 15, 2013
    Applicant: EVERPADS CO., LTD.
    Inventor: EVERPADS CO., LTD.
  • Patent number: 8506019
    Abstract: A block and sleeve assembly is disclosed including a holder block, and a hollow sleeve. In radial cross-section, outer peripheral edges of the shoulder portion of the sleeve have a shape of a first polygon. The holder block and the hollow sleeve include cooperating rotation inhibiting features. For example, the holder block includes a stop projecting forwardly past a plane of the front face and positioned radially offset from a circumference of the opening in the holder block to allow a rearward surface of the shoulder portion of the sleeve to contact the front face of the holder block and to prevent rotation of the hollow sleeve greater than N degrees, N = 360 n , where n is the number of sides of the first polygon, by contacting an outer peripheral edge of the shoulder portion with the stop. A sleeve per se and an assembly including a cutting pick are also disclosed.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: August 13, 2013
    Assignee: Sandvik Intellectual Property AB
    Inventors: Kenneth Monyak, Joseph Fader
  • Patent number: 8506017
    Abstract: A loading arm assembly for directing material removed by a mining machining having a cutting head and a conveyor assembly includes one or more wear resistant plate assemblies at a terminal end of the loading arm. The wear resistant plate assembly includes a wear resistant plate arranged on a surface of arms of the loading arm assembly designed for directing the material to the conveyor. The assembly also has wear resistant inserts along a bottom surface of at least the arm end to protect the bottom surface of the arm from wear as well as the attachment of the wear resistant plate to the arm end.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: August 13, 2013
    Inventor: Philip W. Southern
  • Patent number: RE44690
    Abstract: An improved bit holder with its mating bit block is disclosed utilizing a slight taper in the bit block bore, and a tapered shank on the bit holder that includes a second larger diameter tapered distal segment that combines with an axially oriented slot through the side wall of the bit holder shank to allow a substantially larger interference fit between the distal tapered shank segment and the bit block bore than previously known. When inserting the bit holder in the bit block bore, the distal first tapered segment resiliently collapses to allow insertion of that segment into the bit block bore. A second shank tapered portion axially inwardly of the first distal tapered portion. The dual tapered shank allows the insertion of the bit holder in the bit block with an interference fit that provides a secure mounting of the bit holder in the bit block.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: January 7, 2014
    Inventor: Phillip A. Sollami