Patents Assigned to Sandvik Intellectual Property
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Patent number: 7118311Abstract: A slotting cutter includes a circular disc having an outer periphery along which a plurality of chip channels are formed which define respective seats for receiving respective index able cutting inserts. Each insert includes a planar bottom side. Either the seat or the bottom side has a male locator portion, and the other of the seat and the bottom side has a female locator portion which receives the male locator portion to define therewith and insert-locating structure. The male and female locator portions are offset laterally from a center plane of the insert oriented perpendicular to an axis of rotation of the disc. Alternating ones of the insert-locating structures are disposed on respective opposite sides of the center plane.Type: GrantFiled: January 24, 2001Date of Patent: October 10, 2006Assignee: Sandvik Intellectual Property ABInventor: Willy Aström
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Patent number: 7114892Abstract: A rotatable tool for chip removing machining includes a drill shank, and an exchangeable loose top mounted at an axially front end of the shank. Between these there is a coupling, which includes a male part on the loose top, and a groove in the basic body. By means of a slot, two deflectable legs are defined by the shank, which legs form a jaw for receiving and clamping the male part. The maximal width of the jaw upon deflection of the legs away from one another is larger than the maximal breadth of a wedge portion included in the male part. Furthermore, the angles of inclination of flank surfaces on the male part and side surfaces in the groove, are equally large in order to guarantee surface contact between said surfaces, when the legs are resiliently tightened against the male part. The wedge portion is of dovetail shape, wherein the loose top is drawn axially against the shank as it is being radially clamped by the legs.Type: GrantFiled: January 14, 2005Date of Patent: October 3, 2006Assignee: Sandvik Intellectual PropertyInventor: Lars-Ola Hansson
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Patent number: 7114891Abstract: A thread forming tool includes an elongated body defining a longitudinal center axis. The body including a thread forming portion formed by one or more annular ridges oriented perpendicular to the axis. The body has a non-circular shape in a cross sectional plane oriented perpendicular to the axis at an axial center of the ridge.Type: GrantFiled: May 22, 2002Date of Patent: October 3, 2006Assignee: Sandvik Intellectual Property ABInventor: Björn Håkansson
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Patent number: 7112021Abstract: A tool assembly includes first and second tool bodies, a tool coupling interconnecting the tool bodies, and a drawing member for drawing the tool bodies together along a common longitudinal axis. The tool coupling includes a male portion disposed on one of the first and second tool bodies, and a female portion disposed in another of the first and second tool bodies and receiving the male portion. The tool coupling also includes a ridge disposed on one of the first and second tool bodies and a groove disposed in another of the first and second tool bodies and receiving the ridge for radially steering the first and second tool bodies during mating of the male and female portions.Type: GrantFiled: January 28, 2003Date of Patent: September 26, 2006Assignee: Sandvik Intellectual Property ABInventor: Göran Pantzar
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Patent number: 7108208Abstract: A crusher includes a replaceable first crushing member having a first crusher surface and a replaceable second crushing member having a second crusher surface. The co-operation of the crusher surfaces is defined by at least one crusher setting parameter. From measurements of a quality parameter, which relates to the nature of the crushed material, on at least two different occasions during the service life of a set of replaceable first and second crushing members and on each occasion for at least two different settings of the crusher setting parameter, a control function can be determined that describes a value, of the at least one crusher setting parameter, which on a given occasion gives a crushed material the quality parameter of which is substantially optimal.Type: GrantFiled: March 24, 2005Date of Patent: September 19, 2006Assignee: Sandvik Intellectual Property ABInventors: Mattias Nilsson, Kent Nilsson, Richard Bern, Per Gothenqvist, Anders Nilsson
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Patent number: 7101121Abstract: A cutter insert for disc-milling cutters, in particular, for milling crankshafts. The insert has upper and lower surfaces and circumferential lateral surfaces, which connect the upper and lower surfaces to one another. The insert includes raised swellings and/or projections on the upper surface, at least in the region of two corners, which preferably extend over the entire length of one side of the cutter insert, so that, in a view perpendicularly toward a cutting face formed by at least one of the lateral surfaces, the edge which defines the transition from the upper surface to the cutting face, has a portion projecting relative to the central edge section in the region of each of the two ends of this edge.Type: GrantFiled: April 25, 2003Date of Patent: September 5, 2006Assignee: Sandvik Intellectual Property ABInventors: Günter Wermeister, Stefan Knecht, Rudolf Lohr
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Patent number: 7100651Abstract: A stump grinding disk includes a metallic wheel defining an axis of rotation and including a pair of side surfaces and a circumferential outer edge surface. The outer edge surface includes a plurality of circumferentially spaced recesses. Each recess extends axially completely through the disk. A plurality of side cutting elements are mounted on each side surface. A plurality of outer peripheral cutters are spaced circumferentially apart around the outer edge surface. Wear strips are mounted in respective recesses. Each wear strip includes a metal matrix in which hard particles are disposed. Each wear strip defines a radially inner surface affixed to the wheel, and a radially outer surface arranged substantially flush with adjacent portions of the outer edge surface.Type: GrantFiled: August 9, 2005Date of Patent: September 5, 2006Assignee: Sandvik Intellectual Property ABInventors: Kenneth Monyak, James Paumier
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Patent number: 7101128Abstract: A tool such as a milling or drilling tool includes a shaft having a front recess in which a cutting head is disposed. A drawbar disposed in the shaft includes a plurality of flexible tongues disposed in the recess. The tongues form a recess in which a rear knob of the cutting head is received. A retainer urges the drawbar axially rearwardly to retain the cutting head in the recess. The shaft includes axial projections at its front end which are received in respective rearwardly open recesses of the cutting head to prevent relative rotation between the shaft and the cutting head.Type: GrantFiled: April 8, 2003Date of Patent: September 5, 2006Assignee: Sandvik Intellectual Property ABInventor: Per Hansson
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Patent number: 7097257Abstract: A holder block is mounted on a carrier and has formed therein a first hole and a water passage. A sleeve is mounted in the first hole and receives a cutter bit. The sleeve includes a shank and an enlarged flange disposed at a front end thereof. The shank is disposed in the first hole. The flange includes a rearwardly facing shoulder bearing against an outer surface of the block. A second hole extends through the shank and the flange and is adapted to receive the cutter bit. A spray nozzle is disposed in the flange and is connected to the water passage by way of an annular groove, for receiving water which it sprays forwardly against the cutter bit.Type: GrantFiled: September 15, 2004Date of Patent: August 29, 2006Assignee: Sandvik Intellectual Property ABInventor: Stephen C. Stehney
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Patent number: 7094005Abstract: A shank milling cutter includes a cutting portion which is intended to come into engagement with the workpiece, wherein the envelope surface of the cutting portion is substantially cylindrical. At least one major cutting edge is arranged at the peripheral surface of the cutting portion and at least one minor cutting edge (face cutting edge) is arranged at the end face of the cutting portion and with an end diameter D. The minor cutting edge, in projection onto a plane containing the milling cutter axis, has a convexly curved portion with a radius of curvature R>D/2 and a center of curvature M located such that a distance from the center of curvature M to the axis is in a range from zero to a value smaller than D/2.Type: GrantFiled: December 9, 2004Date of Patent: August 22, 2006Assignee: Sandvik Intellectual Property ABInventor: Jonas Svensson
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Patent number: 7081173Abstract: A super-austenitic stainless steel alloy with a composition, balanced in such a way that products made from the alloy fulfill high requirements on a combination of high corrosion resistance, especially in inorganic and organic acids and mixtures thereof, good general corrosion resistance, good structure stability as well as improved mechanical properties in combination with good workability, in particular in tubes, especially seamless tubes and seam welded tubes for application in these environments and with following composition, in weight-percent: Cr 23.0–30.0 Ni 25.0–35.0 Mo ?2.0–6.0 Mn ?1.0–6.0 N ??0–0.4 C up to 0.05 Si up to 1.0 S up to 0.02 Cu up to 3.0 W ??0–6.0 up to 2.0 of one or more element of the group Mg, Ce, Ca, B, La, Pr, Zr, Ti, Nd, and the balance being Fe and normally occurring impurities and steel making additions.Type: GrantFiled: November 22, 2002Date of Patent: July 25, 2006Assignee: Sandvik Intellectual Property ABInventors: Babak Bahar, Johan Frodigh, Pasi Kangas, Ulf Kivisäkk
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Patent number: 7073988Abstract: A threading tool for generating a thread in a workpiece, includes a threading part which defines a longitudinal axis. A cooling channel extends inside of the threading part along the axis to a front end surface thereof for supplying a coolant. Longitudinally extending passages are disposed in an outer periphery of the threading part for the return of coolant exiting the coolant channel. A diversion element is positioned at the front end surface for diverting the exiting coolant in a laterally outward direction along the front end surface toward the passages.Type: GrantFiled: October 7, 2003Date of Patent: July 11, 2006Assignee: Sandvik Intellectual Property ABInventor: Josef Giessler
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Patent number: 7063487Abstract: A tool for the fine-turning of grooves in workpieces including a basic body having a rearwardly extending mounting part, and a forwardly projecting bracket. The bracket includes a narrow neck part and an enlarged support part disposed at an end of the neck part. The support part, which forms an insert seat, extends laterally from the neck part wherein the seat is arranged asymmetrically with respect to an imaginary center line of the basic body. A cutting insert includes a bottom side supported on the insert seat. The insert includes two spaced apart convexly arched side cutting edges arranged so that the imaginary center line passes therebetween. A hole is provided through the insert for receiving a fastening screw. The bottom side and the insert seat include mutually engaging stabilizing structures preventing angular displacement of the insert about an axis of the hole.Type: GrantFiled: March 15, 2004Date of Patent: June 20, 2006Assignee: Sandvik Intellectual Property ABInventors: Ingemar Hessman, Kenneth Lundberg, Ove Lund, Carl-Göran Petersson, Anders Wretland
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Patent number: 7063488Abstract: In an insert holder for indexable cutting inserts, a clamping device is located which includes an L-shaped member having first and second arms. The first arm is received in a blind hole in the cutting insert and the second arm is actuated by a pressure screw. A free end portion of the second arm has a yoke received in a recessed annular waist portion of the screw so that movement of the screw causes the L-shaped member to rotate and push the insert downwardly against a base surface and laterally against an upright support surface. The insert has a central elevated plateau on its top side to enable a depth of the blind hole to be maximized.Type: GrantFiled: April 9, 2001Date of Patent: June 20, 2006Assignee: Sandvik Intellectual Property ABInventors: Robert Isaksson, Yusuke Seto
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Patent number: 7051822Abstract: A drill bit assembly includes a drill bit having a leading end to which a drill tip is bonded. The drill tip has a front cutting edge, a pair of side cutting edges, a rear end and a pair of parallel side walls extending between the respective edges. The leading end is arranged to support the drill tip along the rear end and against the parallel side walls. The drill bit includes a bore extending axially therethrough and opening into the leading end. The drill tip extends across the bore but permits egress of flushing liquid from the bore. The drill tip includes projections arranged to cooperate with an engagement face formed at the leading end to locate the drill tip in a bonding position relative to the leading end prior to bonding of the drill tip to the leading end. The cooperation is such as to resist shifting movement of the drill tip in a direction of elongation of the tip and out of the bonding position.Type: GrantFiled: March 25, 2004Date of Patent: May 30, 2006Assignee: Sandvik Intellectual Property ABInventor: John Barry
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Patent number: 7048248Abstract: A method of loading cutting tool inserts in a PVD (Physical Vapor Deposition) coating equipment consists in using a tube manufactured of a non-magnetic metallic material surrounding a stack of alternating discs of a magnetic material and iron. The north poles of the magnets are directed towards each other and the cutting inserts are positioned on the outer wall of the solid tube and kept in place by the magnetic forces.Type: GrantFiled: July 4, 2000Date of Patent: May 23, 2006Assignee: Sandvik Intellectual Property ABInventors: Tor Norrgrann, Ingemar Hessman
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Patent number: 7041252Abstract: A copper base alloy, which is resistant or immune to carburization, metal dusting and coking, and resistant to oxidation, the alloy having the following composition (all contents in weight %): Al >0–15 Si 0–6 Mg 0–6 one or more of the group of Rare Earth Metal (REM), yttrium, hafnium, zirconium, lanthanum, cerium) up to 0.3 wt. % each; Cu balance; and normally occurring alloying additions and impurities. Related articles of manufacture and methods are also described.Type: GrantFiled: February 28, 2003Date of Patent: May 9, 2006Assignee: Sandvik Intellectual Property ABInventors: Peter Szakalos, Mats Lundberg, Johan Hernblom
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Patent number: 7036647Abstract: A conveying apparatus includes a conveying assembly and a vertical funnel assembly mounted at a discharge end of the conveying assembly for guiding the discharge of bulk material. The funnel assembly includes a vertical row of frames slidably disposed on a pair of vertical wires. Adjacent frames are connected by flexible connecting elements. Each frame releasably carries a funnel element for conducting the bulk material so that a funnel element can be replaced without having to dismantle all of the funnel elements. Each funnel element includes a safety release connection enabling the funnel assembly to collapse under excessive loads, thereby protecting the conveyor from damage.Type: GrantFiled: October 28, 2004Date of Patent: May 2, 2006Assignee: Sandvik Intellectual Property ABInventor: Mats Malmberg
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Patent number: 7032684Abstract: A rock drill includes a string of components interconnected by screw threads and connected to a shank. A percussion piston is reciprocated against the shank during a drilling operation, while a support device applies axial support to the rear of the shank, to enhance the drilling action. When the components are being unscrewed, the percussion piston is actuated to strike the rear end of the drill string, after the support device has at least partially released the axial support of the shank, to enable tensile stress to be generated in the components by the percussive impacts to facilitate unscrewing of the components.Type: GrantFiled: June 18, 2001Date of Patent: April 25, 2006Assignee: Sandvik Intellectual Property ABInventors: Timo Muuttonen, Pekka Salminen
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Patent number: D525995Type: GrantFiled: September 9, 2004Date of Patent: August 1, 2006Assignee: Sandvik Intellectual Property ABInventors: Fredrik Bjork, Bertil Ederyd, Kenneth Larsson