Patents Assigned to Sandvik Intellectual Property
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Patent number: 8741011Abstract: The present invention relates to a cutting tool insert comprising a body of cemented carbide, cermet, ceramics, high speed steel (HSS), polycrystalline diamond (PCD) or polycrystalline cubic boron nitride (PCBN), a hard and wear resistant coating is applied, grown by physical vapour deposition (PVD) such as cathodic arc evaporation or magnetron sputtering. Said coating comprises at least one layer of (ZrxAl1-x)N with of 0.45<x<0.85 and 0.90?y<1.30 with a thickness between 0.5 and 10 ?m. Said layer has a nanocrystalline microstructure consisting of a single cubic phase or a mixture of hexagonal and cubic phases. The insert is particularly useful in metal cutting applications generating high temperatures with improved crater wear resistance.Type: GrantFiled: June 9, 2009Date of Patent: June 3, 2014Assignee: Sandvik Intellectual Property ABInventors: Mats Johansson, Lina Rogström, Lars Johnson, Magnus Odén, Lars Hultman
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Patent number: 8727451Abstract: A rotatable grading pick has a head portion, a shank portion extending rearwardly from the head portion, and a polygonal portion on the rotatable grading pick. At least a portion of the outer perimeter of the polygonal portion can be engaged by a tool so that the polygonal portion can be rotated, and the shank portion can be rotated to clear debris between the shank portion and a retainer placed around a part of the shank portion.Type: GrantFiled: July 25, 2011Date of Patent: May 20, 2014Assignee: Sandvik Intellectual Property ABInventors: Joseph Fader, Kenneth Monyak
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Patent number: 8727676Abstract: A double-sided, indexable turning insert having a polygonal basic shape, including at least three corners, and an upper side and an under side, in which first and second opposite, plane support surfaces are included, The plane support surfaces are delimited inside outer contour lines, and parallel to each other and to a neutral plane (NP) situated halfway between the plane support surfaces. A plurality of cutting edges are along the upper side and the under side, each one of which includes a nose edge and two main edges converging toward the nose edge, all nose edges along the individual upper or under side being situated in a common reference plane (RP) that is depressed in relation to the support surface.Type: GrantFiled: August 19, 2011Date of Patent: May 20, 2014Assignee: Sandvik Intellectual Property ABInventor: Ronnie Löf
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Patent number: 8720606Abstract: A locking mechanism for locking an insertable device relative to an outer tube of a ground drill comprises at least one latch, which is arranged to releasably retain the insertable device in a substantially fixed axial position relative to the outer tube. The locking mechanism comprises a cam and a cam follower, which are arranged to control a radial position of the latch. The locking system may be used in a ground drill system.Type: GrantFiled: February 17, 2009Date of Patent: May 13, 2014Assignee: Sandvik Intellectual Property ABInventors: David Mildren, Cameron Westwood
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Patent number: 8714883Abstract: A friction bolt, for frictionally engaging the internal surface of a bore drilled into a rock face. The friction bolt comprises an elongate, generally circular tube which is expandable radially. The tube has a leading end and a trailing end. An expander mechanism is disposed within the tube for applying a load tending to expand at least a section of the tube radially. An elongate tendon is disposed longitudinally within the tube and in connection at or towards one end of the tendon with the expander mechanism and in connection at or towards an opposite end of the tendon with an anchor arrangement. The tendon is actuatable to expand the expander mechanism and to remain connected between the expander mechanism and the anchor arrangement while the expander mechanism is expanded.Type: GrantFiled: March 9, 2010Date of Patent: May 6, 2014Assignee: Sandvik Intellectual Property ABInventor: Mieczyslaw Rataj
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Patent number: 8708609Abstract: Gear milling cutter with replaceable milling inserts mounted on flank sides. Some are root inserts placed in tangentially spaced-apart positions along the periphery of the basic body; others are flank inserts tangentially spaced-apart and in ring formation radially inside the root inserts. Sweep areas of radially separated inserts overlap in a ring-shaped overlapping zone by radially inner ends of root inserts being situated nearer the center axis than radially outer ends of the flank insert next inside. A part edge of the cutting edge, located between the straight main edge and one of the ends of the insert is shorter than the main edge and deviates from a straight reference line in the extension of the main edge at a deviation angle of at most 10°. Cutting edges of root inserts overlap cutting edges of flank inserts in a point of intersection situated between end points of the part edges.Type: GrantFiled: August 26, 2011Date of Patent: April 29, 2014Assignee: Sandvik Intellectual Property ABInventors: Thomas Sågström, Jan Johansson
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Patent number: 8708607Abstract: A rock bolt comprising a shaft having first and second ends, and an anchoring device operative to retain the bolt when located in a drilled hole and comprising a mandrel mounted to, or integrally formed with, the shaft and at least one expansion element overlaying the mandrel, at least one of the mandrel or the at least one expansion element being a movable member and being able to rotate relative to, and move axially along, the shaft, the at least one expansion element being arranged to be displaced radially outwardly on a predetermined relative movement between the mandrel and the at least one expansion element, wherein when disposed on a first portion of the shaft, rotation of the movable member relative to the shaft causes axial movement of that member along the shaft, and when disposed on a second portion of the shaft, the movable member is able to rotate on the shaft without being biased to move axially along the shaft.Type: GrantFiled: July 9, 2008Date of Patent: April 29, 2014Assignee: Sandvik Intellectual Property ABInventor: Matthew Kenny
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Patent number: 8708615Abstract: A cemented carbide insert, including an upper side, an under side, a plurality of side surfaces extending between the upper side and the underside, and an inset including a cutting edge. The cutting edge includes a nose edge and two main edges converging toward the nose edge. The inset is formed of a material that is harder than the cemented carbide, and is countersunk in the surrounding cemented carbide and co-ground with the surrounding cemented carbide. The inset is arranged in a front, wedge-shaped head delimited by one chip surface and two clearance surfaces running along the main edges. The inset transforms into an adjacent body part via limiting surfaces situated inside imaginary planes in the extension of the chip surface and the clearance surfaces.Type: GrantFiled: May 26, 2011Date of Patent: April 29, 2014Assignee: Sandvik Intellectual Property ABInventors: Daniel Edler, Elisabeth Nordin
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Patent number: 8708008Abstract: A carbide cutting tip including a rear surface and a bottom surface for mounting the tip to a cutting tool tooth, a top surface having a pair of peaks separated by a trough, the top surface including a frontward facet and a rearward facet sloped downwardly and rearwardly at a non-zero angle ? with respect to the frontward facet, and a front surface having a substantially flat lower portion and a concave upper portion having a shape defined by a segment of an ellipse, the lower portion being disposed substantially perpendicularly to the frontward facet of the top surface, the lower portion and the upper portion joining at a break point located at the apex of the major axis of the ellipse, the major axis of the ellipse being canted frontwardly from the break point at a non-zero angle ? with respect to the lower portion of the front surface.Type: GrantFiled: November 3, 2010Date of Patent: April 29, 2014Assignee: Sandvik Intellectual Property ABInventors: Kenneth Monyak, James Paumier, Joseph Fader
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Patent number: 8707590Abstract: A lock for an attachment system that connects a ground engaging tool to a bucket lip. The lock is disposed, in use, between lug of a lip of the bucket and the ground engaging tool. The lock has a body, a force applying member and a force receiving member. Application of force by the force applying member causes the force receiving member to protrude from a first side of the body and to engage the lug. Relative hardnesses of the lug, the body, the force applying member and the force receiving member are such that application of a sufficiently large force via the lug to the protruding portion of the force receiving member preferentially deforms the protruding portion of the force receiving member ahead of deformation of the body or the force applying member as a preferred lock failure mode.Type: GrantFiled: December 8, 2009Date of Patent: April 29, 2014Assignee: Sandvik Intellectual Property ABInventor: Benjamin David Hughes
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Patent number: 8702352Abstract: A milling tool for rotary cutting machining, including a tool body having a rotation axis, a plurality of insert seats adapted to receive respective milling inserts arranged in one end of the tool body, and a plurality of damping members arranged inside the tool body which suppress operation-induced vibrations in the tool. The damping members being arranged radially displaced from the rotation axis, displaced from the insert seats, and adjacent to the one end of the tool body.Type: GrantFiled: March 7, 2011Date of Patent: April 22, 2014Assignee: Sandvik Intellectual Property ABInventor: Sture Sjöö
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Patent number: 8696269Abstract: A support pad intended for metal machining drills and of the type that includes an outer surface, an inner surface, front and rear end surfaces, as well as a pair of spaced-apart side surfaces, between the outer surface and at least the front end surface a convexly arched entering surface being formed that extends between, on one hand, a pair of front and rear borderlines, the rear one of which borders the outer surface, and, on the other hand, two tangentially spaced-apart side borderlines. The rear borderline of the entering surface has the shape of a convex arc line as viewed in planar view toward the outer surface, more precisely an arc line the crest of which is facing forward. In such a way, the position of the contact of the support pad with a hole wall can be predetermined in an exact way. The drill body may be equipped with one or more support pads.Type: GrantFiled: December 17, 2009Date of Patent: April 15, 2014Assignee: Sandvik Intellectual Property ABInventor: Åke Danielsson
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Patent number: 8684111Abstract: A drill bit is disclosed. The drill bit has an axis, and a barrel, and a cutting member fixed to the barrel. The barrel is arranged to engage a drill shaft for driving the drill bit around the axis. The barrel and the cutting member are adjacently located on the axis. The drill bit has an aperture centered on the axis, the aperture passing completely through both the cutting member and barrel.Type: GrantFiled: June 15, 2009Date of Patent: April 1, 2014Assignee: Sandvik Intellectual Property ABInventors: Andy Bell, Raymond Purser
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Patent number: 8684640Abstract: Reaming tool includes a head and a detachable cutting insert fixed in a seat. The seat includes radial, tangential, and axial support surfaces, while the cutting insert has a mirror-symmetrical polyhedron shape comprising six limiting surfaces, viz. two chip surfaces and at least two clearance surfaces, a number of alternately usable, identical cutting edges formed in transitions between the chip and clearance surfaces. A female- or male-like securing means co-operates with a complementary, male- or female-like securing means in the seat, more precisely in an inactive, contactless state as long as the cutting insert is held pressed by the cutting forces against the axial support surface. The securing means is activatable when the cutting insert is unintentionally distanced from the axial support surface against the action of a clamping member. Tool head and reaming insert for the tool are disclosed.Type: GrantFiled: December 23, 2011Date of Patent: April 1, 2014Assignee: Sandvik Intellectual Property AGInventor: Per Hansson
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Patent number: 8678517Abstract: A cutting bit includes a tool pick having a head and a shank, and a cutting tip having a body, a cap extending frontwardly from the body, and a base extending rearwardly from the body. The base defines an outer diameter of the cutting tip and a substantially flat rear surface at the rear of the cutting tip. A post extends axially frontwardly from a front surface of the head of the tool pick. A cavity extends axially frontwardly into the base from the rear surface of the cutting tip, the cavity having a diameter equal to or less than about 40% of the outer diameter of the cutting tip. When the cutting tip is mounted to the tool pick, the post is received into the cavity and a portion of the front surface of the tool pick mates with a portion of the rear surface of the cutting tip.Type: GrantFiled: October 20, 2010Date of Patent: March 25, 2014Assignee: Sandvik Intellectual Property ABInventors: Kenneth Monyak, Daniel Mouthaan, Joseph Fader
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Patent number: 8678722Abstract: A rotatable tool for chip removing machining, including a basic body having front and rear ends between which a first center axis (C1) extends around which the basic body is rotatable, and a loose top having front and rear ends between which a second center axis (C2) extends. The front end of the basic body includes a jaw which is delimited by two torque-transferring drivers and an intermediate bottom in which a part of the loose top is receivable, and a center hole that mouths in the bottom of the jaw and has a hole wall which extends axially inside the basic body and in which a threaded hole mouths for a screw to co-operate with a centering pin that protrudes axially rearward from the loose top, the centering pin being insertable into the center hole. The centering pin has a cross-sectional area that is less than a cross-sectional area of the center hole.Type: GrantFiled: June 18, 2010Date of Patent: March 25, 2014Assignee: Sandvik Intellectual Property ABInventor: Magnus Aare
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Patent number: 8678714Abstract: Milling tool and milling insert kit are provided for the gash milling of a workpiece. The tool comprises a tool body that defines a rotation axis and has a first end, an opposite second end, and a peripheral surface that extends around the rotation axis between the first end and the second end. A large number of separated seats, which are arranged one after the other in the tool body along a line and receive one each of corresponding number of replaceable milling inserts, comprise a primary main cutting edge and a secondary main cutting edge that converge to each other. The milling inserts comprise outer milling inserts, which project from the tool body by a first length from the rotation axis, and inner milling inserts, which project from the tool body by a second length from the rotation axis. The first length is considerably greater than the second length.Type: GrantFiled: March 29, 2012Date of Patent: March 25, 2014Assignee: Sandvik Intellectual Property ABInventor: Sjöö Sture
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Patent number: D701694Type: GrantFiled: May 22, 2012Date of Patent: April 1, 2014Assignee: Sandvik Intellectual Property ABInventor: Claes Pälsson
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Patent number: RE44870Abstract: A body such as a cutting tool coated with refractory single- or multilayers, wherein specific layers are characterized by a controlled microstructure and phase composition with crystal planes preferably grown in a preferential direction with respect to the surface of the coated body. The coating includes one or several refractory layers of which at least one layer is a dense, fine-grained layer of ?-Al2O3 preferably textured in the (104) direction. The coated tool exhibits excellent surface finish and shows much improved wear and toughness properties compared to prior art objects when used for machining steel, cast iron and, particularly, when machining nodular cast iron. REEXAMINATION RESULTS The questions raised in reexamination proceedings Nos. 90/009,410 and 90/009,666, filed May 5, 2009 and Feb. 24, 2010 respectively, have been considered, and the results thereof are reflected in this reissue patent which constitutes the reexamination certificate required by 35 U.S.C. 307 as provided in 37 CFR 1.Type: GrantFiled: August 8, 2008Date of Patent: April 29, 2014Assignee: Sandvik Intellectual Property ABInventor: Bjorn Ljungberg
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Patent number: D705827Type: GrantFiled: September 7, 2012Date of Patent: May 27, 2014Assignee: Sandvik Intellectual Property ABInventors: John Hammargren, Andreas Rindeskar