Patents Assigned to Sandvik
  • DUPLEX STAINLESS STEEL ALLOY AND USE OF THIS ALLOY
    Publication number: 20100316522
    Abstract: The present invention relates to a duplex stainless steel alloy containing in weight-%: C max 0.03%, Si<0.30%, Mn 0-3.0%, P max 0.030%, S max 0.050%, Cr 25-29%, Ni 5-9%, Mo 4.5-8%, W 0-3%, Cu 0-2%, Co 0-3%, Ti 0-2%, Al 0-0.05%, B 0-0.01%, Ca 0-0.01%, and N 0.35-0.60%, balance Fe and normal occurring impurities, wherein the ferrite content is 30-70 volume-%, and wherein each weight-% of Mo above may optionally be replaced by two (2) weight-% W.
    Type: Application
    Filed: October 2, 2007
    Publication date: December 16, 2010
    Applicant: Sandvik Intellectual Property AB
    Inventor: Kenneth Göransson
  • Heading Machine Having Cutting Unit Made of Disc Tools
    Publication number: 20100314931
    Abstract: In a heading machine (1, 24) with at least one cutting unit with a rotatably mounted tool holder (10, 39) with disc tools (11, 12, 40, 41), which tool holder is connected in a pivotable manner to the machine frame, the heading machine (1, 24) has a running gear, in particular a crawler track (2), the tool holder (10, 39) is mounted rotatably on an arm (6, 26), which can be pivoted in the vertical direction and the rotational axis (9) of the tool holder (10, 39) runs transversely with respect to the longitudinal axis of the arm (6, 26).
    Type: Application
    Filed: January 16, 2009
    Publication date: December 16, 2010
    Applicant: SANDVIK MINING AND CONSTRUCTION G.M.B.H.
    Inventors: Bernhard Ebner, Peter Kogler
  • Monitoring location of mining vehicle using base stations in at least two sections of mine
    Patent number: 7853402
    Abstract: A method and a system for monitoring the location of a mining vehicle in a mine. The first mine section (18) is provided with a wireless network (10) for data transmission between the mining vehicle (1, 1a, 1b) and the mine control system (11). In addition, the network is used for positioning. In the second mine section (21), the location is determined by means of measuring devices provided in the mining vehicle.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: December 14, 2010
    Assignee: Sandvik Mining and Construction OY
    Inventors: Hannu Mäkelä, Riku Pulli, Timo Soikkeli
  • Rotary cutting apparatus comprising a cutter drum and an anvil drum
    Patent number: 7849772
    Abstract: A rotary cutting apparatus includes a cutter drum having at least one cutting member and an anvil drum having a rotary axis, arranged in a cutting relationship to one another, and a pressure actuating device for subjecting pressure on said cutting member in relation to the anvil drum. The pressure actuating device includes a pair of levers rotatable about at least one hinge having a horizontal axis. The horizontal axis is parallel to but non-concentric with the rotary axis. In addition, a frame supports the cutter drum and the anvil drum in a rotatable relationship. The pair of levers are releasably connected to the bearing housing, respectively, in such a way that the anvil drum is allowed to be removed from the frame.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: December 14, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventor: Lilian Monteil
  • Method and device for clamping of crushing shell
    Patent number: 7850108
    Abstract: A gyratory crusher includes an outer shell, which should be fastened in a frame included in the crusher, and an inner shell, which is intended to be fastened on a crushing head and to define together with the outer shell a crushing gap for receipt of material to be crushed. Upon fastening of the outer shell a first abutment surface on the outer periphery of the outer shell is brought in a first step to abutment against a first contact surface on the frame. In a second step a spacer member is pressed in for clamping of the outer shell between a second surface on the outer periphery of the outer shell and the frame. A good abutment is provided both at the first abutment. Surface of the outer shell and at the second abutment surface thereof.
    Type: Grant
    Filed: June 11, 2004
    Date of Patent: December 14, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Gert-Åke Olsson, Rolf Silfver, Torbjörn Nilsson Wulff
  • Assembly and method for restricting spinning in a gyratory crusher
    Patent number: 7850103
    Abstract: A crusher system includes a gyratory crusher, which has a crushing head, on which a first crushing shell is mounted; a frame, on which a second crushing shell is mounted; and a driving device, which is arranged to cause, by means of a rotating eccentric, the crushing head to execute a gyratory movement for crushing material. The crusher system includes a device for generating a signal that indicates the current tendency of the crushing head to spin; a device arranged to establish, based on the signal, a maximum allowable rotational speed for the eccentric; and a device arranged to adapt the rotational speed of the eccentric to a rotational speed that is lower than the maximum allowable rotational speed.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: December 14, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Bengt-Arne Eriksson, Johan Gunnarsson
  • METHOD AND DEVICES FOR HANDLING ROD-LIKE PIECES IN DRILLING AND BOLTING
    Publication number: 20100307827
    Abstract: A method and a rod magazine for handling elongated rods in a rock drilling unit, and a bolting unit. Elongated rods, such as drill rods and rock bolts, are stored into a linear rod magazine—provided with feed members for transferring the rods upward and downward in the magazine. The feed members comprise screw surfaces by which the rods are supported in the magazine. The required feeding movement is produced by rotating the feed members about their rotation axis. In addition, the rod magazine comprises transfer means that allow the rods to be transferred from the magazine to a drilling line or bolting line, i.e. to a centre, and vice versa. The transfer means are provided with gripping means for gripping the rods.
    Type: Application
    Filed: December 17, 2008
    Publication date: December 9, 2010
    Applicant: Sandvik Mining and Construction Oy
    Inventor: Juha Piipponen
  • Measuring instrument for gyratory crusher and method of indicating the functioning of such a crusher
    Patent number: 7845237
    Abstract: A measuring instrument for indicating the load in a gyratory crusher includes a first measuring device for measuring at least one instantaneous load on the crusher, a second measuring device for measuring the gyrating position of the inner shell relative to the outer shell, and a correlating device adapted to match said at least one instantaneous load on the crusher with a corresponding measured gyrating position of the inner shell relative to the outer shell.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: December 7, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Mauricio Torres, Jonas Gustavsson
  • Cutting tool and a tool part with connecting surfaces with grooves and a method for manufacturing of the tool part
    Patent number: 7845256
    Abstract: A cutting tool of the type that comprises two parts having co-operating connecting surfaces of serration type, which individually include a plurality of ridges or tops, which are mutually separated by grooves, the pitch between the ridges in the respective connecting surfaces being one and the same. According to the invention, the widths of two or more grooves positioned one after the other in a series in one of the connecting surfaces increase progressively from a first groove to a last groove in the series. Furthermore, the invention relates to a tool part as such, as well as a method in the manufacture of such tool parts.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: December 7, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventor: Göran Pantzar
  • ELECTRONIC BLASTING CAPSULE
    Publication number: 20100300317
    Abstract: An electronic blasting capsule which includes a housing which contains a propellant, a fuse, a sensor for detecting the position of the housing in a capsule delivery path, an energy arrangement for obtaining energy from an external energy source, and a controller, responsive to the sensor and the energy arrangement, for firing the fuse to initiate the propellant.
    Type: Application
    Filed: September 8, 2008
    Publication date: December 2, 2010
    Applicant: Sandvik Mining and Construction RSA (PTY) LTD
    Inventors: Jarmo Leppanen, Ockert Oosthuizen
  • USE OF A DUPLEX STAINLESS STEEL IN A PHOSPHORIC ACID PRODUCTION SYSTEM
    Publication number: 20100294472
    Abstract: The present disclosure relates to the use of a duplex stainless steel as heat exchanger material in a phosphoric acid production system using the wet method. The steel has the following composition in percent by weight: C max 0.03 Si max 0.5 Mn max 3 Cr 26-29 Ni 4.9-10 Mo 3-5 N 0.35-0.5 B max 0.0030 Co max 3.5 W max 3 Cu max 2 Ru max 0.3 balance Fe and normal occurring impurities.
    Type: Application
    Filed: October 24, 2008
    Publication date: November 25, 2010
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Sabina Ronneteg, Knut Tersmeden, Anna-Lena Nyström
  • Device and method for milling of materials
    Publication number: 20100296889
    Abstract: Device and method for milling of materials including a milling cutter body including a first end portion and an opposite second end portion. The first end portion is connected to a rotatable spindle and the second end portion is provided with at least one cutting edge. The milling cutter body defines a longitudinal axis and is provided with an axial recess, wherein at least one mass element is arranged in the recess. The axial position of the mass element in relation to the milling cutter body is tuned by use of tuning members included in the device for the tuning of the natural frequency of the device. The mass element is axially locked in relation to the milling cutter body by use of lock members included in the device, in order to optimize the natural frequency of the device for the milling operation in question.
    Type: Application
    Filed: May 17, 2010
    Publication date: November 25, 2010
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Mikael Lundblad, Anders Liljerehn
  • PVD-coated cutting tool insert
    Patent number: 7838132
    Abstract: The present invention relates to a coated cutting tool insert of cemented carbide with coating including at least one layer of Ti1-x AlxN deposited by PVD-technique. The layer has x=0.4-0.6 with a compressive residual stress of >4-6 GPa and a thickness of 1.5-5, preferably 2.5-4 ?m. Both the I(111) and I(200) are <7.5, preferably <5, times, the intensity average noise level. Good adhesion despite high compressive stress is obtained if the layer is deposited by cathodic arc evaporation technique at a bias in the range ?90<U<?50V, preferably ?80V<U<?60V.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: November 23, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Mats Ahlgren, Helen Blomqvist
  • Rotary cutting pick
    Patent number: 7837277
    Abstract: A cutting pick comprises an elongate shank and a cutting tip mounted to one end of the shank. The cutting tip has a leading end, a trailing end and a mounting portion for mounting to the shank. The tip has a shape such that it diverges outwardly in a direction from the leading end to the trailing end to a portion of maximum diameter. An annular sleeve is attached about the shank adjacent to and in non-contacting relationship with the trailing end of the cutting tip. The maximum diameter of the cutting tip is of greater diameter than the diameter of the inner diameter of the annular sleeve so that the portion of maximum diameter overlies the sleeve radially.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: November 23, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventor: Steven Weaver
  • Method for controlling pressure fluid operated percussion device, and percussion device
    Patent number: 7836969
    Abstract: The invention relates to a method for controlling a pressure fluid operated percussion device comprising a working chamber for pressure fluid and in the working chamber a transmission piston installed movably with respect thereto so as to enable a tool installed in the percussion device to be pressed against a material to be broken in order to generate a stress pulse, and to a percussion device. The method comprises adjusting the length of the stress pulse by adjusting the time during which pressure influences the transmission piston. The percussion device comprises an adjustment element and adjustment means for adjusting the influence time of the pressure of the pressure fluid being fed via a control valve and influencing the transmission piston.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: November 23, 2010
    Assignee: Sandvik Mining and Construction OY
    Inventors: Erkki Ahola, Mauri Esko, Aimo Helin, Markku Keskiniva, Jorma Mäki, Juha Piispanen
  • Ceramic cutting insert and a method of manufacturing a ceramic cutting insert
    Patent number: 7837417
    Abstract: A ceramic cutting insert, including a face ground top surface, and at least one peripheral clearance surface adjacent to an edge, from which a reinforcing chamfer surface extends inward. The chamfer surface forms a first acute angle with a reference plane that is parallel to the top surface. A generally concave unground intermediate surface is formed between the top surface and the chamfer surface, the intermediate surface at the transition to the top surface forming a second angle with the top surface that is greater than the first angle, and the width of the chamfer surface being greater than the width of the intermediate surface.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: November 23, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventor: Per Blomstedt
  • ELECTRIC HEATING DEVICE
    Publication number: 20100290499
    Abstract: Electric heating device comprising a radiant tube and an electrical heating element arranged in the radiant tube as well as a protective insert of electrically conductive material. The protective insert is arranged between the radiant tube and the electrical heating element. The device allows the use of higher element power.
    Type: Application
    Filed: December 10, 2007
    Publication date: November 18, 2010
    Applicant: Sandvik Intellectual Property AB
    Inventor: Thomas Lewin
  • THE USE AND METHOD OF PRODUCING A DISPERSION STRENGTHENED STEEL AS MATERIAL IN A ROLLER FOR A ROLLER HEARTH FURNACE
    Publication number: 20100289194
    Abstract: A roller for a roller hearth furnace comprising a dispersion strengthened steel is disclosed. The roller does not require any coating or reconditioning.
    Type: Application
    Filed: October 5, 2007
    Publication date: November 18, 2010
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Dilip Chandrasekaran, Thomas Helander, Thomas Lewin, Thomas Odelstam, Jan Innerman
  • Cutting tool with a cemented tungsten carbide insert and ring
    Patent number: D627804
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: November 23, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Joseph Fader, Kenneth Monyak, Daniel Mouthaan
  • Aluminum oxide coated tool
    Patent number: RE41972
    Abstract: There is provided a tool at least partly coated with at least two refractory layers of which one of the said layers is a fine-grained ?-Al2O3-layer which is the top layer along the cutting edge-line and the other a TiCxNyOz- or a ZrCxNy-layer being the top layer on the clearance face. The coated tool exhibits excellent flank and crater wear and high resistance to flaking, particularly when used for machining of low carbon steel and stainless steel. Used cutting edges can easily be identified by the naked eye.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: November 30, 2010
    Assignee: Sandvik Intellectual Property AB
    Inventors: Anders Lenander, Bjorn Ljungberg