Patents Assigned to Sandvik
  • Patent number: 7041252
    Abstract: 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: Grant
    Filed: February 28, 2003
    Date of Patent: May 9, 2006
    Assignee: Sandvik Intellectual Property AB
    Inventors: Peter Szakalos, Mats Lundberg, Johan Hernblom
  • Publication number: 20060093860
    Abstract: A coated product is disclosed consisting of a metallic substrate and a coating of a MAX material type. Furthermore, a method of producing such a coated product is disclosed using vapor deposition technique in a continuous roll to roll process.
    Type: Application
    Filed: December 29, 2004
    Publication date: May 4, 2006
    Applicant: SANDVIK AB
    Inventors: Mikael Schuisky, Jens-Petter Palmqvist
  • Patent number: 7036748
    Abstract: A new method and apparatus for manufacturing powders of cemented carbide, cermets, ceramics and similar materials with good abrasive wear resistance starting from a slurry, wherein the slurry is introduced into a drop forming device including at least one essentially horizontal oriented rotating drop forming disk (12), from which the drops are slung out to solidify by centrifugal force.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: May 2, 2006
    Assignee: Sandvik AB
    Inventors: Alf Andersson, Bo Nelander, Ulf Jutterström
  • Patent number: 7037051
    Abstract: A cutting insert comprises first and second polygonally-shaped main faces arranged substantially parallel to one another, and a side face structure interconnecting the first and second main faces to define a peripheral edge. At least the first main face includes at least one projection extending to the peripheral edge, the projection formed by: a portion of the first main surface (defining a relief surface), a portion of the side face structure (defining a rake surface), and a portion of the peripheral edge (defining a cutting edge). The insert includes support surfaces defined by a portion of the second main face, and by portions of the side surface structure other than the rake surface.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: May 2, 2006
    Assignee: Sandvik AB
    Inventor: Günter Wermeister
  • Patent number: 7036647
    Abstract: 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: Grant
    Filed: October 28, 2004
    Date of Patent: May 2, 2006
    Assignee: Sandvik Intellectual Property AB
    Inventor: Mats Malmberg
  • Publication number: 20060088390
    Abstract: A tool body includes an insert seat for receiving a cutting insert for chip-removing machining. The insert seat includes a bottom surface and support surfaces upstanding from the bottom surface. Each support surface comprises at least three ridges separated by grooves. Each groove has a depth greater than zero and no greater than 0.015 mm. An insert mounted in the seat by a screw has a center hole whose axis is offset from the axis of a threaded hole of the body in which the screw is connected. That offset distance creates a prestress of the insert toward the ridges. The depth of the grooves (i.e., the height of the ridges) is substantially less than the distance of the offset.
    Type: Application
    Filed: August 26, 2005
    Publication date: April 27, 2006
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Lars-Gunnar Wallstrom, Lennart Wihlborg
  • Patent number: 7032684
    Abstract: 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: Grant
    Filed: June 18, 2001
    Date of Patent: April 25, 2006
    Assignee: Sandvik Intellectual Property AB
    Inventors: Timo Muuttonen, Pekka Salminen
  • Patent number: 7032686
    Abstract: The drilling and bolting head (7) of compact structure, is designed for use in mine galleries of small height. It comprises: a transverse table (8) connected to the carrying vehicle, preferably with a device (9 to 12) for lifting this table (8); a slide (13) displaceable along the table (8); an intermediate support (16) displaceable vertically on the slide (13); a vertical beam (21) mounted pivotally on the intermediate support (16); a vertical slideway (23) guided vertically on the beam (21); a drill (26), with a device (33, 34) for the drilling and setting of bolts, which is guided vertically on the slideway (23); motorized device (14, 18, 30) for controlling the various movements. The intermediate support (16) possesses an upper part (20) which can be used as a prop, in combination with a jack (18) arranged along the vertical pivot axis (19) of the beam (21).
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: April 25, 2006
    Assignee: Sandvik Tamrock Secoma SAS
    Inventors: Jean-Claude Barthomeuf, Alain Comorge
  • Patent number: 7034260
    Abstract: A method of producing a heating element made from molybdenum silicide and alloys thereof, and which includes aluminum oxide on its surface. A material is produced that contains substantially Mo(Si1-xAlx)2 and Al2O3 by mixing a mixture of a silicon and molybdenum compound with an aluminum compound. Either of the silicon and molybdenum compounds include Mo(Si1-yAly)2 and are mixed with one or both of an aluminum compound in the form of Al2O3 or Al(OH)3 and optionally the compounds SiO2, Si, and MoO3, or by virtue of the mixture of the silicon and molybdenum compound containing MoO3 and Al and Si and/or SiO2. The input components together have a degree of purity corresponding to at least 98%. The mixture reacts exothermically and/or by being sintered, so that exchange reactions take place to form the compounds Mo(Si1-xAlx)2 and Al2O3, where x lies in the range of 0.4–0.6.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: April 25, 2006
    Assignee: Sandvik AB
    Inventors: Mats Sundberg, Anders Magnusson
  • Publication number: 20060070505
    Abstract: A rotary cutter drum includes a cutter portion formed of a multiphase material and includes first and second substantially cylindrical, radially outwardly exposed surfaces, and a knife member formed of one piece with the exposed surfaces and arranged to axially separate the first and second surfaces from one another. The knife member protrudes by a distance in the range of 1 to 5 mm radially outwardly beyond a smallest diameter portion of the first and second exposed surfaces. The knife member includes two sides terminating at respective ones of the first and second exposed surfaces.
    Type: Application
    Filed: June 24, 2005
    Publication date: April 6, 2006
    Applicant: Sandvik Intellectual Property AB
    Inventors: Gilbert Grenier, Stephanie Baty
  • Patent number: 7021182
    Abstract: An indexible turning tool for chip forming machining, includes a holder equipped with insert pockets receiving replaceable inserts, as well as a securing portion intended to be received in a tool machine. At least one of the replaceable inserts has a main plane that extends laterally in relation to the tool's axial direction.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: April 4, 2006
    Assignee: Sandvik Intellectual Property AB
    Inventor: Daniel Edler
  • Patent number: 7021871
    Abstract: The invention relates to an indexable milling insert (3) having a polygonal basic shape, comprising four peripheral sides, which meet each other in pairs in one the one hand two acute corners (15), and on the other hand two obtuse corners (16). Between chip surfaces (17) on the top side of the insert and flank surfaces (18) along the peripheral sides, cutting edges (19) are formed, which individually comprise on the hand a major edge portion (20), and, on the other hand, a rounded minor edge portion (21), formed in connection with an acute corner (15).
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: April 4, 2006
    Assignee: Sandvik Intellectual Property Aktiebolag
    Inventors: Peder Arvidsson, Jan Johansson, Lars-Erik Enquist
  • Publication number: 20060065088
    Abstract: A rotary cutter includes a hollow rotary mantle having a cutter arbour on an outer periphery thereof, through holes extending radially through the mantle, and an air distribution mechanism. The air distribution mechanism includes first and second parts. The first part is affixed to the mandrel coaxially therein for rotation therewith. The second part is arranged inside the first part, wherein the first distribution part is rotatable relative to the second distribution part. The first and second air distribution parts define air passages for communicating selective ones of the through-holes of the mantle with an air source in response to relative rotation between the first and second distribution parts.
    Type: Application
    Filed: June 27, 2005
    Publication date: March 30, 2006
    Applicant: SANDVIK INTELLECTUAL PROPERTY HB
    Inventors: Gilbert Grenier, Lilian Monteil
  • Publication number: 20060061206
    Abstract: A tool for mining rock by means of undercutting includes an attachment part which defines a center longitudinal axis, and a holder mounted to the attachment part by bearings for rotation relative thereto about the axis. An outer surface of the holder includes a circumferentially extending first groove. A button disk is mounted on the cutter and includes an inner surface having a circumferentially extending second groove. One of the grooves is superimposed relative to the other groove to define therewith a space. A wire extends within the space to hold the button disk on the cutter.
    Type: Application
    Filed: August 19, 2005
    Publication date: March 23, 2006
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Peter Nava
  • Publication number: 20060060389
    Abstract: A rock drill bit for percussive drilling includes a front face which has radially outer and inner portions. Fluid channels are disposed in the head portion in communication with the inner portion of the front face. The inner portion of the front face carries a plurality of front buttons. The outer portion comprises circumferentially spaced steel portions which are axially raised relative to the inner portion. Each raised portion carries one or two peripheral buttons located radially outwardly of an imaginary circle which intersects at least two of the front buttons and at least two of the flushing channels. The imaginary circle is arranged coaxially relative to the center axis.
    Type: Application
    Filed: August 19, 2005
    Publication date: March 23, 2006
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Per-Ola Hadin, Fredrik Bjork
  • Publication number: 20060060388
    Abstract: A drill bit intended for percussive rock drilling is formed to reduce the occurrence of cavitation during percussive drilling. The drill bit includes an integral skirt and at least one channel for transport of flush medium, such as water. The drill bit has a front face provided with buttons, which define a greatest first external diameter (D0). A recess with a female thread, such as a rope or trapezoid thread for percussive drilling, extends into the drill bit from a rear end face of the drill bit. The recess has an axial depth (L0). The external surface of the skirt includes a conical portion having an axial extension that is greater than one-eighth of the depth (L0) of the recess but smaller than the depth (L0) of the recess.
    Type: Application
    Filed: August 17, 2005
    Publication date: March 23, 2006
    Applicant: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Johan Linden, Bo Carlstrom
  • Patent number: 7013773
    Abstract: A tool holder simultaneously carries at least two diametrically arranged tool heads, each tool head carrying cutting inserts for chip removing machining. The tool holder includes an adaptor connected to a coupling. The adaptor has at least two diametrically opposite side surfaces which-diverge away from the coupling. The side surfaces have seats in order to replaceably receive respective tool heads. A line which lies in both a first basal plane and in one of the side surfaces forms an angle in the interval 1°–15° with a longitudinal center line of the tool holder.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: March 21, 2006
    Assignee: Sandvik AB
    Inventor: Per Hansson
  • Patent number: 7013996
    Abstract: An impact device for a rock drill. The rock drill includes a tool and a mechanism for delivering a stress pulse to the tool. That mechanism includes an impact element supported to a frame of the drill, and a mechanism for subjecting the impact element to stress and thereafter releasing the impact element suddenly from the stress, whereupon stored stress energy in the impact element is discharged in the form of a stress pulse directed at the tool.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: March 21, 2006
    Assignee: Sandvik Tamrock Oy
    Inventors: Markku Keskiniva, Jorma Mäki, Erkki Ahola, Esa Rantala
  • Publication number: 20060055229
    Abstract: 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: Application
    Filed: September 15, 2004
    Publication date: March 16, 2006
    Applicant: SANDVIK AB
    Inventor: Stephen Stehney
  • Patent number: 7011867
    Abstract: A coated cutting tool is composed of one or more layers of refractory compounds of which at least one layer is single-phase ?-alumina with a pronounced columnar grain-structure and strong texture in the [300]-direction. The alumina layer is preferably deposited by CVD (Chemical Vapor Deposition) and the preferred microstructure and texture are achieved by adding a second metal halide, and a texture modifying agent, to the reaction gas. When coated cemented carbide cutting tools according to the invention are used in the machining of steel or cast iron, several important improvements compared to prior art have been observed, particularly in the machining of nodular cast iron.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: March 14, 2006
    Assignee: Sandvik Aktiebolag
    Inventor: Per M{dot over (a)}rtensson