Wear Shield Or Replaceable Wear Sleeve Patents (Class 299/104)
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Patent number: 11891895Abstract: A bit holder that includes a front body portion and a shank axially depending from the bottom of the front body portion. The shank of the bit holder includes at least one slot and at least one annular ring disposed partially or nearly circumferentially around the shank. The slotted shank of the bit holder and the at least one annular ring are radially compressible to achieve and maintain an interference fit when inserted into a bore of a base block.Type: GrantFiled: January 12, 2021Date of Patent: February 6, 2024Assignee: The Sollami CompanyInventor: Phillip Sollami
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Patent number: 11365628Abstract: Embodiments described herein relate to material-removal systems as well as cutting tools and cutting tool assemblies that may be used in the material-removal systems. More specifically, for example, the material-removal systems, and particularly the cutting tools, may engage and fail target material. In some instances, the material-removal systems may be used in mining operations.Type: GrantFiled: September 28, 2020Date of Patent: June 21, 2022Assignee: US Synthetic CorporationInventor: Edwin Sean Cox
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Patent number: 11268382Abstract: The invention relates to a milling pick, in particular a round pick having a pick head (40), which has a pick tip (30) made of a hard material as a cutting element, wherein furthermore a pick shank (10) is provided, which is coupled directly or indirectly to the pick head (40), wherein a wear-protection disk (20) is provided, the cut-out of which, in particular a drilled hole, is pushed onto the pick shank (10), wherein the wear-protection disk (20) has, on its side facing the pick head (40), a counterface (23), which is designed to come into contact with a bearing surface (41) of the pick head (40), wherein the wear protection disk has, facing away from the counterface (23), an underside support surface (21), which is preferably parallel to the counterface (23), and wherein a disk thickness (d) is formed between the counterface (23) and the support surface (21), is characterized in that the ratio of the diameter of the pick shank (10) located in the area of the cut-out (25) to the thickness of the disk (d)Type: GrantFiled: March 19, 2019Date of Patent: March 8, 2022Inventors: Heiko Friederichs, Ulrich Krämer
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Patent number: 11255192Abstract: The invention relates to a pick sleeve (10) including a head (12) and a shank (14). The head (12) includes a central part (20) and a bearing member (22) which is secured to the central part (20). The bearing member (22) is separable from the central part (20) in order to facilitate removal of the pick sleeve (10) from a holder (38). The invention extends to a tool (50) which is used in the removal of the pick sleeve (10) from the holder (38).Type: GrantFiled: March 14, 2019Date of Patent: February 22, 2022Inventors: Gavin James Beard, Mark Forsyth
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Patent number: 11248366Abstract: A holder block assembly for a drum-type cutting tool has a holder block and a sleeve that is removably held in the holder block to carry a cutter bit. The sleeve includes a shank received in a hole in a cutter block and a nut threaded on the shank. The nut is turned by a hand tool to extract the sleeve from the holder block.Type: GrantFiled: June 10, 2019Date of Patent: February 15, 2022Inventor: William P. Sulosky
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Patent number: 11180991Abstract: A cutting bit includes a rear adapter portion having a body of revolution, an outer circumferential surface, and a first retention nub extending from the outer circumferential surface. The cutting bit also includes a forward portion, and an intermediate collar portion that is disposed between the rear adapter portion, and the forward portion.Type: GrantFiled: March 12, 2020Date of Patent: November 23, 2021Assignee: Caterpillar Paving Products Inc.Inventor: Jason A. Haro
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Patent number: 11092008Abstract: A grader bit comprising a tool end having a shank extending axially inward therefrom; the shank having a circular cross-section; wherein a first shoulder extends radially outward relative to the shank and is located axially inward of the tool end; a second shoulder extending radially outward relative to the shank is located axially inward of the first shoulder, wherein the first shoulder and second shoulder are separated from each other by a spacing; the shank including a boss at an axial inward end thereof, the boss defining a socket extending inward into the shank from the axial inward extremity of the shank, wherein a perimeter of the socket includes at least one facet against which a force is applied to cause rotation of the shank.Type: GrantFiled: December 3, 2019Date of Patent: August 17, 2021Assignee: IronHawk Industrial Distribution LLCInventor: Ron Abramcyk
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Patent number: 10954785Abstract: A bit assembly includes a base block and a bit holder having a forward body portion and a shank. The forward body portion includes an enlarged tire portion to deflect material and particles removed from the terra firma and protect the base block from damage. The base block includes a base and a shortened front end. The enlarged tire portion has dimensions that cover at least all of the shortened from end. The dimensions of the tire portion can also extend beyond the dimensions of the shortened front end.Type: GrantFiled: September 13, 2019Date of Patent: March 23, 2021Assignee: The Sollami CompanyInventor: Phillip Sollami
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Patent number: 10822770Abstract: An adapter board for use with a blade assembly includes a lower tool bit attachment portion, terminating in a lower adapter board free end, the lower adapter board free end defining a bottom surface defining a plurality of shank receiving bores and a plurality of pry slots. Each one of the plurality of pry slots is disposed adjacent at least one of the plurality of shank receiving bores.Type: GrantFiled: May 25, 2018Date of Patent: November 3, 2020Assignee: Caterpillar Inc.Inventors: David Bruno Parzynski, Jr., Thomas Marshall Congdon
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Patent number: 10738610Abstract: A round-shank pick having a pick head and a pick shank that includes a supporting element pierced along its longitudinal center axis by a mounting hole with an inside diameter for receiving the pick shank. A collar height, measured in the direction of the longitudinal center axis between an end, facing away from the seat surface, of the centering extension and the seat surface or between the end of the centering extension and an inner termination of a recess that is integrally formed in the supporting element in an indented manner with respect to the seat surface, is configured such that the ratio between the inside diameter of the mounting hole in the supporting element and the collar height is less than 8, and/or that the collar height is greater than an axial clearance of the pick mounted in a pick holder.Type: GrantFiled: November 17, 2017Date of Patent: August 11, 2020Assignee: Betek GmbH & Co. KGInventors: Ulrich Kraemer, Heiko Friederichs
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Patent number: 10683752Abstract: 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: GrantFiled: September 19, 2017Date of Patent: June 16, 2020Assignee: The Sollami CompanyInventor: Phillip Sollami
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Patent number: 10662770Abstract: 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 centering lug on the underside thereof, wherein the centering lug has a centering 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 centering 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: GrantFiled: February 28, 2019Date of Patent: May 26, 2020Assignee: Betek GmbH & Co. KGInventors: Karl Kammerer, Heiko Friederichs
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Patent number: 10640934Abstract: A paddle for a reclaiming drum may include a block of material configured for attachment to a leading edge of a flighting supporting a cutting bit on the reclaiming drum, and the block of material may assist in breaking up and mixing material removed from a surface by the cutting bit as the reclaiming drum is rotated and moved into the surface. The paddle may include two ear portions protruding from opposite sides of a flat, centrally-located, aft-facing surface of the block of material, each of the ear portions including an inwardly-facing chamfered surface configured to interface with an outwardly-facing, leading edge chamfered surface of the flighting such that a gap is maintained between a flat leading edge surface of the flighting located in between the outwardly-facing chamfered surfaces and the flat, centrally-located, aft-facing surface of the block of material when the block of material is attached to the flighting.Type: GrantFiled: November 13, 2017Date of Patent: May 5, 2020Assignee: Caterpillar Paving Products Inc.Inventors: Kevin James Magee, Mario Persano, Dario Sansone
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Patent number: 10633971Abstract: A bit assembly includes a base block and a bit holder having a forward body portion and a shank. The forward body portion includes an enlarged tire portion to deflect material and particles removed from the terra firma and protect the base block from damage. The base block includes a base and a shortened front end. The enlarged tire portion has dimensions that cover at least all of the shortened from end. The dimensions of the tire portion can also extend beyond the dimensions of the shortened front end.Type: GrantFiled: March 7, 2016Date of Patent: April 28, 2020Assignee: The Sollami CompanyInventor: Phillip Sollami
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Patent number: 10612376Abstract: A bit and/or pick that includes a collapsible slotted retainer and a non-rotating washer. The bit includes an upper body portion and a shank. The collapsible slotted retainer and the washer are disposed circumferentially about the shank of the bit. The washer is also disposed between a bottom of the upper body portion of the bit and a forward end of the retainer. The bit is inserted into a bore of a bit holder or a base block and the washer axially aligns the bit and the bit bolder or base block along a centerline to self-center the bit in the bore. As the bore becomes worn during use, the washer engages the forward end of the retainer and urges the washer away from a front face of the bit holder or base block, to collapse the retainer and increase a diameter of the retainer to approximately match a diameter of a bore of the bit holder or base block and restore the interference fit with the bore.Type: GrantFiled: January 24, 2018Date of Patent: April 7, 2020Assignee: The Sollami CompanyInventor: Phillip Sollami
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Patent number: 10596723Abstract: A cutting tool holding device, which is for holding a cutting tool, includes a base, a holder, and a limiting set, wherein the holder is disposed on the base, and the limiting set is disposed in a non-circular channel of the base. A connecting shaft portion of the holder is for inserting into a storage hole of the base, wherein the connecting shaft portion includes a shaft body and at least one positioning portion, and the non-circular channel includes an abutting member and a bolt. The bolt is passed through the abutting member, wherein the abutting member is moved to an opening hole of the storage hole along an axis by rotating the bolt so as to push the positioning portion and abut the shaft body.Type: GrantFiled: July 24, 2018Date of Patent: March 24, 2020Assignee: EVERPADS CO., LTD.Inventor: Chun-Li Chiang
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Patent number: 10577931Abstract: Improvements in previous bit assembly components including shortened slotted shanks and shortened base block bore receiving portions disclose relationships between shank differential interference portions and the corresponding base block bores. Changes in the differences in interference angles lead to changes in slot width, length and steel hardnesses in order to provide necessary retaining forces between the shank and base block bore.Type: GrantFiled: February 6, 2017Date of Patent: March 3, 2020Assignee: The Sollami CompanyInventor: Phillip Sollami
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Patent number: 10458234Abstract: 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: GrantFiled: October 5, 2017Date of Patent: October 29, 2019Assignee: ESCO GROUP LLCInventors: Mark Alexander Cheyne, Jack Charles Rickey
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Patent number: 10450579Abstract: 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: GrantFiled: October 9, 2014Date of Patent: October 22, 2019Assignee: Monsanto Technology LLCInventors: Paul S. Chomet, Donald C. Anstrom, Jacqueline E. Heard, Adrian Lund, Jill Deikman
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Patent number: 10260341Abstract: 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: GrantFiled: September 23, 2016Date of Patent: April 16, 2019Assignee: Betek GmbH & Co. KGInventors: Karl Kammerer, Heiko Friederichs
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Patent number: 10233751Abstract: 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: GrantFiled: April 18, 2017Date of Patent: March 19, 2019Assignee: Caterpillar Paving Products Inc.Inventors: Kevin James Magee, Mario Persano, Dario Sansone
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Patent number: 10184336Abstract: 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: GrantFiled: January 13, 2016Date of Patent: January 22, 2019Assignee: Caterpillar Paving Products Inc.Inventor: Dario Sansone
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Patent number: 10167720Abstract: 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: GrantFiled: January 13, 2016Date of Patent: January 1, 2019Assignee: Caterpillar Paving Products Inc.Inventor: Kevin Magee
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Patent number: 10113424Abstract: 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: GrantFiled: January 13, 2016Date of Patent: October 30, 2018Assignee: Caterpillar Paving Products Inc.Inventor: Dario Sansone
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Patent number: 10072501Abstract: 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: GrantFiled: October 13, 2014Date of Patent: September 11, 2018Assignee: The Sollami CompanyInventor: Phillip Sollami
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Patent number: 9879531Abstract: 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: GrantFiled: February 23, 2015Date of Patent: January 30, 2018Assignee: The Sollami CompanyInventor: Phillip Sollami
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Patent number: 9803479Abstract: 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: GrantFiled: July 22, 2015Date of Patent: October 31, 2017Assignee: NOVATEK IP, LLCInventors: David R. Hall, Ronald B. Crockett, Dwain Norris
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Patent number: 9790790Abstract: 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: GrantFiled: October 1, 2014Date of Patent: October 17, 2017Assignee: BOMAG GmbHInventors: Robert Laux, Joachim Hermes, Arne Schlichting, Daria Hefter, Monica Wolf, Domenico Muscara, Bernd Raufelder
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Patent number: 9695688Abstract: 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: GrantFiled: March 10, 2015Date of Patent: July 4, 2017Assignee: BOMAG GmbHInventors: Steffen Wachsmann, Monica Wolf
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Patent number: 9605486Abstract: 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: GrantFiled: August 21, 2013Date of Patent: March 28, 2017Assignee: Smith International, Inc.Inventors: Yuri Burhan, Jibin Shi, Chen Chen, Youhe Zhang
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Patent number: 9441421Abstract: 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: GrantFiled: January 15, 2014Date of Patent: September 13, 2016Assignee: Bradken Canada Ltd.Inventors: Jonathan Daniel Curlett, Nolan Brian Serink
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Patent number: 9422812Abstract: 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: GrantFiled: October 14, 2014Date of Patent: August 23, 2016Assignee: KENNAMETAL INC.Inventors: Nicholas J. Paros, Chad A. Swope, Donald E. Keller
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Patent number: 9399914Abstract: 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: GrantFiled: October 11, 2012Date of Patent: July 26, 2016Assignee: Wirtgen GmbHInventors: Markus Roth, Thomas Allgaier, Thomas Lehnert
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Patent number: 9359894Abstract: 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: GrantFiled: September 19, 2014Date of Patent: June 7, 2016Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Hannes Voitic, Joe Fader
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Patent number: 9234424Abstract: 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: GrantFiled: July 1, 2015Date of Patent: January 12, 2016Assignee: BETEK GmbHInventors: Thomas Lehnert, Heiko Friederichs
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Patent number: 9222354Abstract: 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: GrantFiled: October 11, 2012Date of Patent: December 29, 2015Assignee: Wirtgen GmbHInventors: Thomas Allgaier, Thomas Lehnert, Markus Roth
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Patent number: 9074472Abstract: 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: GrantFiled: October 14, 2010Date of Patent: July 7, 2015Assignee: BETEK GmbH & Co. KGInventors: Thomas Lehnert, Heiko Friederichs
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Patent number: 9028008Abstract: 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: GrantFiled: January 16, 2014Date of Patent: May 12, 2015Assignee: Kennametal Inc.Inventor: Paul A. Bookhamer
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Publication number: 20150091365Abstract: 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: ApplicationFiled: October 1, 2014Publication date: April 2, 2015Inventors: Robert Laux, Joachim Hermes, Arne Schlichting, Daria Hefter, Monica Wolf, Domenico Muscara, Bernd Raufelder
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Patent number: 8911024Abstract: 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: GrantFiled: July 31, 2012Date of Patent: December 16, 2014Assignee: Caterpillar Paving Products Inc.Inventors: Anne K. Fundakowski, Benjamin T. Schafer, Joseph D. Koehler, David N. Peterson
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Patent number: 8870297Abstract: 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: GrantFiled: June 19, 2012Date of Patent: October 28, 2014Assignee: Caterpillar Inc.Inventors: Nicholas R. Pederson, Brian J. Schlenker, Maria L. Biberdorf, Jason W. Muir
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Patent number: 8857918Abstract: 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: GrantFiled: February 8, 2013Date of Patent: October 14, 2014Assignee: Everpads Co., Ltd.Inventor: Chun-Li Chiang
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Publication number: 20140239700Abstract: 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: ApplicationFiled: February 20, 2014Publication date: August 28, 2014Applicant: BOMAG GmbHInventor: Steffen Wachsmann
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Publication number: 20140225418Abstract: 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: ApplicationFiled: September 19, 2012Publication date: August 14, 2014Inventors: Frank Friedrich Lachmann, Bernd Heinrich Ries
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Publication number: 20140217806Abstract: 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: ApplicationFiled: October 11, 2012Publication date: August 7, 2014Applicant: Betek GmbH & Co. KGInventors: Thomas Allgaier, Thomas Lehnert, Markus Roth
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Patent number: 8783785Abstract: 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: GrantFiled: July 10, 2009Date of Patent: July 22, 2014Assignee: Wirtgen GmbHInventors: Thomas Lehnert, Christian Berning, Martin Lenz
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Patent number: 8777326Abstract: 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: GrantFiled: January 23, 2012Date of Patent: July 15, 2014Inventor: David R. Hall
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Publication number: 20140191563Abstract: 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: ApplicationFiled: January 9, 2013Publication date: July 10, 2014Inventor: Henk Roland van Marum
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Patent number: 8770669Abstract: 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: GrantFiled: June 30, 2011Date of Patent: July 8, 2014Assignee: BOMAG GmbHInventors: Steffen Wachsmann, Peter Erdmann
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Publication number: 20140152074Abstract: 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: ApplicationFiled: May 3, 2012Publication date: June 5, 2014Applicant: SANDVIK MINING AND CONSTRUCTION G.M.B.H.Inventors: Roman Gerer, Raif Grief