Class / Patent application number | Description | Number of patent applications / Date published |
299113000 | Insert or tip mounting feature (e.g., soldering, brazing, friction or interference fit) | 31 |
20080238181 | Retention System - A retention assembly, comprises a carbide bolster comprising a cavity formed in its base end. A shaft comprises an inserted end disposed within the cavity. The shaft is disposed within a hollow shank which comprises a first end contacting the bolster and a loaded end in mechanical communication with the shaft. The inserted end is interlocked to an inner surface of the cavity through a casting. | 10-02-2008 |
20080246329 | Retention System - A retention assembly has a carbide bolster with a first and second segment brazed together, each segment forming at least part of a cavity formed of the bolster. A shaft has an inserted end is interlocked within the cavity. | 10-09-2008 |
20080309149 | Braze Thickness Control - In one aspect of the present invention, a degradation assembly comprises an inverted conical face formed in a top end of a metal body tapering towards a central axis of the metal body. A base end of a carbide bolster is adapted to be brazed to the top end of the metal body within the inverted conical face. At least one protrusion is formed in the inverted conical face and is adapted to control a braze thickness between the face and the base end. | 12-18-2008 |
20080315667 | Braze Thickness Control - In one aspect of the present invention, a degradation assembly comprises an inverted conical face formed in a top end of a metal body tapering towards a central axis of the metal body. A base end of a carbide bolster is adapted to be brazed to the top end of the metal body within the inverted conical face. At least one protrusion is formed in the inverted conical face and is adapted to control a braze thickness between the face and the base end. | 12-25-2008 |
20090160238 | Retention for Holder Shank - In one aspect of the present invention, a degradation assembly has a holder comprising a first end and a second end and a shank with a longitudinal central bore having an opening at an end proximate the second end. The shank portion of the holder has an inside diameter of the bore and an outside diameter wherein either the inner diameter or the outer diameter comprise at least one recess disposed therein which comprises a depth of less than the distance between the inner diameter and the outer diameters. | 06-25-2009 |
20090267403 | Resilient Pick Shank - In one aspect of the invention, a pick assembly comprises a pick shank press fitted within a bore of a pick holder. The pick comprises a pick head opposite the shank. The shank also comprises at least one longitudinal slot extending towards the pick head along the shank from a distal end of the shank. The slot allows the shank to resiliently collapse upon insertion into the bore while still allowing the shank to maintain a press fit while within the bore. | 10-29-2009 |
20090273225 | Resilient Pick Shank - In one aspect of the invention, a pick assembly comprises a pick shank press fitted within a bore of a pick holder. The pick comprises a pick head opposite the shank. The shank also comprises at least one longitudinal slot extending towards the pick head along the shank from a distal end of the shank. The slot allows the shank to resiliently collapse upon insertion into the bore while still allowing the shank to maintain a press fit while within the bore. | 11-05-2009 |
20100253130 | Slotted Shank Bit Holder - A quick change type bit holder for use in a bit assembly for road milling, road planing, trenching and mining equipment wherein a bit shank extends completely through an axially oriented bit holder bore includes a slotted shank having an outwardly tapered bit holder bore wherein insertion of the bit shank in a bit block acts to slightly collapse the shank which collapses the tapered bore to a generally cylindrical configuration that preferably snugly retains the bit shank rotatably therein. | 10-07-2010 |
20110181098 | MINER CUTTING BIT HOLDING APPARATUS - An assembly for mounting a cutter bit on a driven mechanism, the assembly comprising a bit holder including a holding portion adapted to receive the bit and a mounting base rear portion. The bit holder holding portion is a forward portion, the forward portion being separate from but connected to the mounting base rear portion. | 07-28-2011 |
20110254348 | Resilent Connection between a Pick Shank and Block - In one aspect of the present invention, a pick assembly is configured that comprises a pick shank configured to be press fit directly within a bore of a block. The pick shank comprises an inside and outside surface. The pick comprises a pick head opposite the shank. The shank comprises at least one longitudinal recess extending towards the pick head along the shank from a distal end of the shank. The recess allows the shank to resiliently collapse upon insertion into the bore while maintaining a press fit between the bore and the shank. | 10-20-2011 |
20110254349 | Resilent Connection between a Pick Shank and Block - In one aspect of the present invention, a pick assembly is configured that comprises a pick shank configured to be press fit directly within a bore of a block. The pick shank comprises an inside and outside surface. The pick comprises a pick head opposite the shank. The shank comprises at least one longitudinal recess extending towards the pick head along the shank from a distal end of the shank. The recess allows the shank to resiliently collapse upon insertion into the bore while maintaining a press fit between the bore and the shank. | 10-20-2011 |
20110254350 | Resilent Connection between a Pick Shank and Block - In one aspect of the present invention, a pick assembly is configured that comprises a pick shank configured to be press fit directly within a bore of a block. The pick shank comprises an inside and outside surface. The pick comprises a pick head opposite the shank. The shank comprises at least one longitudinal recess extending towards the pick head along the shank from a distal end of the shank. The recess allows the shank to resiliently collapse upon insertion into the bore while maintaining a press fit between the bore and the shank. | 10-20-2011 |
20110266861 | Manually Rotatable Tool - In one aspect of the present invention, a tool assembly comprises a rotary portion and a stationary portion. The rotary portion comprises a bolster bonded to a diamond symmetric, substantially conically shaped tip. The stationary portion comprises a block mounted to a driving mechanism. A compressible element is disposed intermediate and in mechanical contact with both the rotary and stationary portions. The compressible element is compressed sufficiently to restrict free rotation during a degradation operation. | 11-03-2011 |
20110278908 | METHOD AND SYSTEM OF RETAINING A CUTTING BIT - Retaining a cutting bit. At least some of the illustrative embodiments are methods including: placing a neck portion of a retaining clip in a groove on outer surface of a sleeve (the sleeve with a cylindrical bore defining a longitudinal axis); then telescoping the sleeve and retaining clip, with the neck portion placed in the groove, within a bit block (the telescoping such that an arm portion of the retaining clip partially occludes an aperture of the cylindrical bore); and then inserting a shank portion of a cutting bit within the cylindrical bore of the sleeve (the arm portion of the retaining clip mates with at least a portion of an annular groove of the shank portion); and retaining the shank portion of the cutting bit by way of the arm portion of the retaining clip. | 11-17-2011 |
20120068528 | CUTTING DEVICE FOR A MINING MACHINE - In a cutting device for a mining machine, in particular a shearer, including a tool carrier, in particular a shearer drum, that is rotatably mounted about a rotational axis and at least one cutting tool ( | 03-22-2012 |
20120080931 | ROAD PLANING TOOL - A road planing tool includes a tool holder having a front end thereof formed with an assembling socket, and a tool bit being in a cone-like shape and having a tip and a bottom, wherein the bottom is configured to be fittingly inlaid in the assembling socket. The road planing tool is characterized in that: the bottom of the tool bit has a plurality of projecting retaining teeth, and the assembling socket is peripherally formed with a toothed inner rim correspondingly, wherein fittingly engagement between the retaining teeth and the toothed inner rim allows the tool bit to be firmly combined with the tool holder. | 04-05-2012 |
20120274123 | Mineral Winning Pick, Pick Box and Combination - A mineral cutter pick ( | 11-01-2012 |
20130187438 | Pick with Hardened Core Assembly - 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. | 07-25-2013 |
20140054951 | Cutting Tool With Insert Having A Tapered Bottom - A cutting tool for use in impinging earth strata includes a cutting tool body that contains a socket at an axial forward end thereof and an insert structured and arranged for being affixed to the cutting tool body within the socket. The insert includes a mounting end portion at an axial rearward end of the insert. The mounting end portion includes a first tapered segment, a second tapered segment adjacent and axially rearward of the first tapered segment wherein the second tapered segment has an axial rearward end diameter, and a base adjacent and axially rearward of the second tapered segment, the base having a base diameter that is greater than the axial rearward end diameter of the second tapered segment. The socket is structured and arranged for cooperating with the mounting end portion of the insert. | 02-27-2014 |
20140319898 | RADIAL CUTTER BIT WITH CUTTING INSERT HAVING EDGE PREPARATION - A radial cutter bit includes a non-rotatable shank portion, a head portion including a tip region distal from the non-rotatable shank portion, and a cutting insert mounted at the tip region of the head portion. The cutting insert includes a body having a leading face, an opposing trailing face, a first side and a second side. The leading face has a central face portion, a first side face portion extending toward the first side of the body and a second face portion extending toward the second side of the body. The cutting insert further includes a top surface having a relief surface, a T-land surface extending between at least a portion of the leading face and the relief surface of the top surface and a cutting edge formed at the intersection of the T-land surface and the relief surface of the top surface. | 10-30-2014 |
20140354033 | MINING PICKS AND METHOD OF BRAZING MINING PICKS TO CEMENTED CARBIDE BODY - A tool and a method of making the tool is disclosed. The tool comprises a sleeve and a compact. The sleeve may have a proximal end, a distal end, a central axis, and a bore extending from the proximal end to the distal end, the bore having an inner wall. The compact may have a base end and an impact surface spaced opposite to the base end. The compact may be substantially disposed within the bore of the sleeve. The proximal end may be disposed proximate the base end of the compact. | 12-04-2014 |
20140368023 | Attack Tool with an Interruption - In one aspect of the present invention, a tool has a wear-resistant steel base comprising a shank suitable for attachment to a driving mechanism. A planar end of a cemented metal carbide segment brazed to an interfacial surface of the base axially opposed to the shank. At least one interruption is formed in the interfacial surface. | 12-18-2014 |
20150035344 | Pick Tool with a Removable Shank - Pick tool assemblies for use with formation degradation machines, such as road milling, mining, trenching or drilling machines, may be disposed on rotatable drums, wheels, continuous chains, drill bits or the like and brought into engagement with such formations as rock, asphalt, coal or concrete to break up or otherwise degrade the formations. Such pick tool assemblies may comprise a shank comprising a forward end and a rearward end wherein the rearward end may be formed for retention in a bore of a block attached to a driving mechanism and the forward end may comprise a body detachably and nonrotatably fastened thereto. Further, an impact tip may be bonded opposite the rearward end. | 02-05-2015 |
20150337657 | EASILY REMOVABLE RECIPROCATING IMPACT HEAD WITH ANTI-ROTATION INSERTION HOLE FOR MINING MACHINE - An easily removable reciprocating impact head comprises a reciprocating impact tooth, a fixed seat, snap springs or elastic pins or locking pins; the reciprocating impact tooth comprises an impact tooth and impact tooth shoulders, the reciprocating impact tooth and the fixed seat comprise hole grooves, the snap springs or the elastic pins or the locking pins are arranged in the hole grooves, the fixed seat and the reciprocating impact tooth are connected in a penetrating manner, and the snap springs or the elastic pins or the locking pins withstand rearward pulling force of the impact movement; the impact tooth shoulders are tightly snap-fitted with tooth seat shoulders so as to withstand the reacting force of the reciprocating impact, and a hole anti-rotation structure and a pillar anti-rotation structure are snap-fitted to prevent the reciprocating impact tooth from rotating. | 11-26-2015 |
20150345291 | Tool Holder - 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. | 12-03-2015 |
20150369044 | Bit, In Particular A Round Shaft Bit - 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. | 12-24-2015 |
20160003041 | Variable Angle Cutting Bit Retaining Assembly - A cutting bit retaining assembly for mounting a cutting bit at a cutting machine. The assembly includes a holder body to receive a shank like adaptor with a cutting bit demountable at one end of the adaptor. An annular shoulder is provided at the cutting bit mounting end of the adaptor having a wedge configuration, so as to mount the cutting bit at a tilted angle relative to the shank of the adaptor to provide a desired cutting bit attack angle. | 01-07-2016 |
20160076370 | Chisel Holder - The invention relates to 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 support member comprising two first and/or two second stripping surfaces that are at an angle to one another, and the support member having a working side that comprises a bit receptacle. In order to achieve a stable and long-lived configuration for such a bit holder, provision is made according to the present invention that the first and/or second stripping surfaces diverge from the insertion projection side toward the working side. | 03-17-2016 |
20160102550 | CUTTING TOOL MOUNTING ASSEMBLY WITH ELASTOMERIC COATED BUSHING - 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. | 04-14-2016 |
20160123144 | CUTTING TOOL HOLDING DEVICE - A cutting tool holding device includes a base, a cutting tool holder, a screw element, a fitting positioning element and a pulling element. The base includes an accommodating groove, a receiving hole and a fitting positioning hole. The cutting tool holder includes a holder and a cutting tool receiving component. The holder includes an engaging portion detachably engaged in the accommodating groove, and a concave portion communicated with the fitting positioning hole is formed on the engaging portion. The fitting positioning element is driven by the pulling element to move in the fitting positioning hole for pressing against the concave portion tightly. | 05-05-2016 |
20160177717 | Chisel Holder | 06-23-2016 |