Patents Assigned to SANDVIK MINING AND CONSTRUCTION
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Patent number: 11965726Abstract: A rock drilling unit and method for charging drilled holes. The rock drilling unit includes a feed system for feeding initiators and rock breaking material into the drilled holes. The rock drilling unit is also provided with one or more communicating devices for communicating with the wireless initiators.Type: GrantFiled: November 18, 2020Date of Patent: April 23, 2024Assignee: Sandvik Mining and Construction OyInventors: Jerome Pourcenoux, Remy Barraud, Sylvain Chavand, Laurent Demia
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Patent number: 11946328Abstract: A down the hole drilling assembly having a drill tube adapter, an elongate casing, a fluid powered piston, a top working chamber, a bottom working chamber, a top sub and an exhaust system, wherein the exhaust system is moveable with respect to the drill string. The top sub includes an exhaust valve arranged for opening and closing the connection between the at least one exhaust passage and the at least one exhaust port.Type: GrantFiled: June 18, 2020Date of Patent: April 2, 2024Assignee: Sandvik Mining and Construction OyInventor: Olivier Bruandet
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Patent number: 11940812Abstract: A method for a zone passage control system for an underground worksite having a plurality of operation zones for autonomously operating mobile vehicle operations includes the steps of associating a first passage control unit with a first zone and a second zone, detecting state parameter information of the first zone and the second zone, merging the first zone and the second zone into a fusion zone on the basis of the state parameter information of the first zone and the second zone, and adapting the zone passage control system to allow a first autonomously operating mobile vehicle to pass the first passage control unit in the fusion zone without interrupting operation of a second autonomously operating mobile vehicle in the first zone and/or the second zone.Type: GrantFiled: May 9, 2018Date of Patent: March 26, 2024Assignee: Sandvik Mining and Construction OyInventors: Janne Kallio, Antti Lehtinen, Jarkko Ruokojarvi
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Patent number: 11933107Abstract: A disc cutter for a cutting unit used in an undercutting operation and a method of producing the same. The disc cutter including an annular disc body made of a metal alloy or metal matrix composite having a first side, a second side arranged substantially opposite to the first side and a radially peripheral part. At least one metal alloy, metal matrix composite or cemented carbide cutting part is mounted in and substantially encircling the radially peripheral part of the disc body which protrudes outwardly therefrom to engage with the rock during the mining operation. The at least one cutting part is made from a material having a higher wear resistance than the material used for the disc body, wherein the disc body and the cutting part are joined by diffusion bonds.Type: GrantFiled: October 31, 2019Date of Patent: March 19, 2024Assignee: Sandvik Mining and Construction Tools ABInventors: Bjorn Claesson, Stefan Ederyd, Johan Sundstrom, Tomas Berglund, Fredrik Meurling
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Patent number: 11933175Abstract: A rock bolt for installation within a bore formed in rock strata having an elongate shaft with the leading end for installation into the bore and a trailing end projecting from an open end of the bore. A locking nut is threadably attached to the trailing end and is arranged to display product information and the like at a display face. The display face is recessed axially into the nut to provide protection against damage to the display face that may otherwise render the information unreadable.Type: GrantFiled: July 25, 2022Date of Patent: March 19, 2024Assignee: Sandvik Mining and Construction Tools ABInventors: Mieczyslaw Rataj, Steven Weaver, Bradley Darlington, Peter Young, Warren Roach
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Patent number: 11898213Abstract: A method of treating a sintered mining insert including cemented carbide includes the step of subjecting the mining insert to a surface hardening process. The surface hardening process is executed at an elevated temperature of or above 100° C. A mining insert is also provided, wherein the HV1 Vickers hardness measurement increase (HV1%) from the surface region, measured as an average of HV1 measurements taken at 100 ?m, 200 ?m and 300 ?m below the surface, compared to the HV1 Vickers hardness measured in the bulk (HV1bulk), is at least 8.05-0.00350×HV1bulk.Type: GrantFiled: December 18, 2020Date of Patent: February 13, 2024Assignees: AB Sandvik Coromant, Sandvik Mining and Construction Tools ABInventors: Ioannis Arvanitidis, Andreas Blomqvist, Jose Luis Garcia, Erik Holmstrom, Mirjam Lilja
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Patent number: 11885853Abstract: A method for determining the state of health of a battery by monitoring charging of the battery over multiple charging instances is provided. The method is implemented within charging stations by: recognizing the battery via a unique identifier; charging the battery; monitoring conditions of the battery during charging; storing data related to the current charging instance based at least partially on the monitored conditions; retrieving data related to at least one earlier charging instance of the uniquely identified battery; and making a determination of the uniquely identified battery's state of health based at least partially on a comparison of the data related to the current charging instance and the retrieved data related to at least one earlier charging instance.Type: GrantFiled: January 28, 2020Date of Patent: January 30, 2024Assignee: Sandvik Mining and Construction OyInventors: Mikko Kuovo, Harri Vatanen, Raimo Juntunen
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Patent number: 11874115Abstract: A method for positioning a mobile object in an underground tunnel includes the steps of determining horizontal progression of a mobile object in an underground tunnel from a preceding position estimate or an initial position of the mobile object; determining horizontal position of the mobile object on the basis of a floor model of the tunnel and the estimated horizontal progression of the mobile object; and generating a three-dimensional position indicator on the basis of the horizontal position of the mobile object and a three-dimensional model of the tunnel.Type: GrantFiled: November 28, 2019Date of Patent: January 16, 2024Assignee: Sandvik Mining and Construction OyInventors: Tuukka Vainio, Jussi Collin, Lauri Siivonen, Jussi Puura, Tomi Von Essen
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Patent number: 11859371Abstract: A wear part, a bucket, bucket system and a method for attaching the wear part to the bucket are provided. The wear part includes a forward edge for intruding into a material to be handled by the bucket, and an engagement portion for engaging with an engagement edge of the bucket. The engagement portion has a concave cross section. A lever element extends from a side of the engagement portion in a direction backwards from the forward edge, and a fastening unit is arranged in a distal end of the lever element. The bucket has a plate hole arranged behind a bucket threshold in relation to an engagement edge for receiving a fastening element for fastening the wear part to the bucket.Type: GrantFiled: August 5, 2019Date of Patent: January 2, 2024Assignee: Sandvik Mining and Construction OyInventor: Tony Lehto
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Patent number: 11846189Abstract: A cutting assembly for a mining machine includes a central hub having at least one arm extending radially outwards from the central hub. The arm includes at least one cutting means carrier movably arranged for radial movement along the arm and a primary actuator configured to control the radial position of the cutting means carrier. The cutting assembly further includes a locking means movable between an unlocked and a locked position, wherein the locking means in its locked position locks the cutting means carrier to the arm such that radial movement of the cutting means carrier is prevented. The locking means includes at least one locking member provided on the arm such that the locking member is movable between an extended position and a withdrawn position. The locking member in the extended position extends to engage the cutting means carrier such that movement of the cutting means carrier is prevented.Type: GrantFiled: January 20, 2020Date of Patent: December 19, 2023Assignee: Sandvik Mining and Construction G.m.b.H.Inventors: Friedrich Pucher, Stefan Steiner
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Patent number: 11834929Abstract: A down the hole drilling assembly having an elongate casing, a fluid powered piston, top and bottom working chambers, a plurality of fluid passages and an exhaust system, wherein the sum of the top work area and a top intermediate work area of the piston is equal to the cross-sectional area of the casing bore.Type: GrantFiled: June 18, 2020Date of Patent: December 5, 2023Assignee: Sandvik Mining and Construction OyInventor: Olivier Bruandet
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Patent number: 11827456Abstract: A hydraulic system is arranged to control a plurality of drive motors suitable for driving conveying apparatus such as a conveyor belt. The hydraulic system includes a modular master and slave hydraulic units implemented as hydraulic circuits in which pressure sensors and pressure reducing valves provide speed, torque and directional control.Type: GrantFiled: July 6, 2018Date of Patent: November 28, 2023Assignee: Sandvik Mining and Construction G.m.b.H.Inventors: Stefan Hasler, Christian Umundum
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Patent number: 11828137Abstract: A hydraulic breaking hammer and method of supporting a percussion piston is provided. The breaking hammer includes a percussion device provided with a reciprocating piston. The piston is supported on a frame at its end portions by a first piston bearing element and a second piston bearing element. The second piston bearing element includes a collar sealing element facing towards a working collar of the piston. The piston bearing elements are easily mountable and dismountable separate components.Type: GrantFiled: February 10, 2022Date of Patent: November 28, 2023Assignee: Sandvik Mining and Construction OyInventors: Mika Oksman, Jyrki Nissinen, Juhani Laine, Harri Moilanen
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Publication number: 20230373729Abstract: In a method for calculating a bulk material conveying rate or a bulk material load of a vibratory conveyor machine, in which method raw measured data from the vibratory conveyor machine are acquired at at least two times with different load states by at least one acceleration, speed or travel sensor and raw measured data are then processed to give at least one vibration data feature from the list: amplitude, frequency and phase, provision is made to create and to store feature datasets consisting of at least one vibration data feature and to create a regression model on the basis thereof. Based on the created regression model and at least one current feature dataset, the current actual load or bulk material conveying rate of a vibratory conveyor machine is then ascertained and displayed.Type: ApplicationFiled: September 1, 2021Publication date: November 23, 2023Applicant: SANDVIK MINING AND CONSTRUCTION DEUTSCHLAND GMBHInventors: Viktor RAIS, Jan SCHÄFER
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Patent number: 11808012Abstract: A hydraulic system, mining machine and method of controlling a hydraulic actuator. The hydraulic system (HS) is provided with a control valve (23) for controlling movement direction and speed of a hydraulic actuator (HA) connected to the system. Generated force of the hydraulic actuator is controlled independently relative to the control valve by means of counterbalance valves (Cb1, Cb2) and servo valves (Sv1, Sv2) controlling their opening pressure. The counterbalance valves and the servo valves operate as a meter-out control assembly which controls flow of hydraulic fluid discharged from working pressure spaces (16a, 16b) of the hydraulic actuator. The disclosed system may be implemented to control a mining boom (3) of a mining machine (1).Type: GrantFiled: August 27, 2019Date of Patent: November 7, 2023Assignee: Sandvik Mining and Construction G.m.b.H.Inventors: Reinhold Pogatschnigg, Christian Umundum
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Patent number: 11808086Abstract: A drill string rod includes an elongate central rod portion. The central rod portion has a hollow-cylindrical shape with an inner first diameter (drod) and an outer second diameter (Drod). The male end includes a spigot having a base projecting axially from a shoulder that axially separates the spigot and the central rod portion. The female end has a sleeve portion that fits to the spigot. An inner thread of the sleeve portion is attachable to an outer thread of the base of the spigot of a further drill string rod. In a radial plane to the longitudinal axis of the drill string rod, the base of the spigot is defined by an outer third diameter (Dspigot) and an inner fourth diameter (dspigot) and the sleeve portion is defined by an outer fifth diameter (Dsleeve) and an inner sixth diameter (dsleeve), wherein the second diameter (Drod) is >60 mm.Type: GrantFiled: March 5, 2020Date of Patent: November 7, 2023Assignee: Sandvik Mining and Construction Tools ABInventors: Tomas Jansson, Mattias Pettersson
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Patent number: 11644292Abstract: An apparatus and method for designing a blasting sequence for a drilling pattern of a round. The apparatus (11) is configured to assist selecting one or more drill holes (3) for each time delay of the blast. The apparatus calculates burst volume (VB) for the selected drill hole set (34) and ensures that previously blasted free volume (VF) can receive it when being fired. The apparatus may also take into account burst angles burst distances and ground vibrations when suggesting the drill hole sets.Type: GrantFiled: January 21, 2020Date of Patent: May 9, 2023Assignee: Sandvik Mining and Construction OyInventors: Juoko Muona, Juha-Matti Myllyla
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Patent number: 11599124Abstract: A method for zone passage control in an underground worksite having a plurality of operation zones for autonomously operating mobile vehicle operations includes the steps of receiving position information of at least one autonomously operating mobile vehicle in a fusion zone merged of at least a first zone and a second zone associated with a first passage control unit, and in response to detecting a mobile object by a second passage control unit associated with the first zone, performing: checking position of the at least one autonomously operating mobile vehicle, in response to an autonomously operating mobile vehicle being positioned in the second zone, preventing a control command to stop the autonomously operating mobile vehicle in the second zone, and demerging the first zone and the second zone.Type: GrantFiled: May 9, 2018Date of Patent: March 7, 2023Assignee: Sandvik Mining and Construction OyInventors: Jarkko Ruokojarvi, Antti Lehtinen, Janne Kallio
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Patent number: D982428Type: GrantFiled: March 18, 2021Date of Patent: April 4, 2023Assignee: Sandvik Mining and Construction Australia Pty Ltd.Inventors: Warren Roach, Peter Young, Mietek Rataj, Bradley Darlington
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Patent number: D982617Type: GrantFiled: August 25, 2021Date of Patent: April 4, 2023Assignee: Sandvik Mining and Construction OyInventors: Jani Lietonen, Esko Laihonen, Kyle Hickey