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| Number | Title | Issue Date |
| 8177023 | Sound dampening housing for rock drill The invention relates to a sound dampening housing for a rock drill which moves along a feed beam in a longitudinal direction thereof, the sound dampening housing being attachable to the feed beam of the rock drill on its both sides so that together with the feed be... | 05/15/2012 |
| 8172005 | Cement silo structure for mining machine The invention relates to a cement silo structure for a mining machine comprising a mixer, a cement silo for cement and a feed apparatus for feeding cement to the mixer. The cement silo is a separate unit that may be transferred by means of transfer means between a u... | 05/08/2012 |
| 8151901 | Impact device and method for generating stress pulse therein A pressure fluid operated impact device comprising a frame (2) whereto a tool (3) is mountable movably in its longitudinal direction, and control means (7) for controlling pressure fluid feed to the impact device (1), as well as a method ... | 04/10/2012 |
| 8146678 | Rock drilling apparatus and method for controlling rock drilling apparatus A rock drilling apparatus with several actuator units, a user interface control unit, and at least one control means connected to the user interface control unit for controlling the functions of the rock drilling apparatus, and for each actuator unit, a control elem... | 04/03/2012 |
| 8118112 | Rock breaking device, protection valve and a method of operating a rock breaking device A hydraulic rock breaking device, a protection valve and a method of operating a hydraulic rock breaking device. The rock breaking device comprises a percussion device to which pressure fluid is fed along an inlet channel. The inlet channel is provided with a protec... | 02/21/2012 |
| 8061434 | Percussion device A method for controlling the operation of a pressure fluid operated percussion device and to a pressure fluid operated percussion device. The method includes influencing the shape of a stress wave by setting a suitable clearance between a transmission piston and a t... | 11/22/2011 |
| 7987929 | Arrangement for processing dust The invention relates to a method for processing dust when breaking rock, to a dust separator, and further to a rock-drilling rig. Rock material and air sucked from a borehole or some other operating location is separated from each other in the dust separator. The s... | 08/02/2011 |
| 7942481 | Rock drill and method of breaking rock A method of breaking rock which includes the steps of drilling a hole in the rock using a drill rod; leaving the drill rod in the hole; using water flow to direct a propellant charge into the hole through a passage in the drill rod; and at a leading end of the drill... | 05/17/2011 |
| 7937104 | Arranging data transfer for mobile mine device The invention relates to a method of arranging data transfer between a moving mine vehicle and a control point. At least two wireless connections are established for the mine device, the connections being arranged via different base stations. Substantially the same ... | 05/03/2011 |
| 7931096 | Adaptive user interface for rock drilling rig A control apparatus for controlling a multi-phase rock drilling event carried out with a rock drilling rig. In a display of the rock drilling rig or a control unit thereof, a first section is settable for substantially invariable information sources and a second sec... | 04/26/2011 |
| 7900712 | Hydraulic system for mining equipment and method of adjusting power of rock drill machine In a hydraulic system for mining equipment and a method of adjusting the power of a rock drill machine, at least one mining actuator used for detaching rock is connected to a dedicated separate hydraulic circuit having a special hydraulic pump. The power of the mini... | 03/08/2011 |
| 7899599 | Arrangement for monitoring the location of a mining vehicle in a mine A method and a system for monitoring the location of a mining vehicle in a mine. The mine includes a first and a second work area. At least one identifier whose exact location is known is arranged in the first work area. The location of the mining vehicle is determi... | 03/01/2011 |
| 7895900 | Measuring device, rock breaking device and method of measuring stress wave The invention relates to a method of measuring a stress wave and to a measuring device and a rock breaking device. A percussion device (7) gives impact pulses to a waveguide (21), where a compression stress wave and a reflected tensile stress wave are ... | 03/01/2011 |
| 7878263 | Pressure-fluid-operated percussion device A pressure-fluid-operated percussion device includes a frame allowing a tool to be arranged movably in its longitudinal direction. Pressure liquid is fed to the percussion device and returned to a pressure liquid tank. A stress pulse is produced in the tool utilizin... | 02/01/2011 |
| 7853402 | Monitoring location of mining vehicle using base stations in at least two sections of mine 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 ... | 12/14/2010 |
| 7836969 | Method for controlling pressure fluid operated percussion device, and percussion device 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 ... | 11/23/2010 |
| 7831345 | Method of driving plurality of mine vehicles in mine, and transport system A method of driving mine vehicles in a mine, and a transport system. A plurality of mine vehicles is arranged in succession and driven in convoy between working areas. A master vehicle in the convoy is driven manually, and slave vehicles follow the master, provided ... | 11/09/2010 |
| 7828083 | Method of controlling operation of rock drilling rig, and rock drilling rig A method of controlling operation of a rock drilling rig, and a rock drilling rig. A rate of flow of a flushing medium of the rock drilling rig is determined, and the operation of the rock drilling rig is controlled on the basis of the determined rate of flow by inf... | 11/09/2010 |
| 7816613 | Arrangement for weighing transport vehicle load A method for weighing a payload of a transport vehicle, a transport vehicle and a bogie structure. Vertical loads exerted on wheel suspension of the transport vehicle are measured with sensors and the measurement data is conveyed to a calculating unit of weighing. F... | 10/19/2010 |
| 7798247 | Arrangement for sucking dust A method for sucking dust in connection with a rock drilling rig, and a rock drilling rig. The rock drilling rig (1) comprises a dust collection system provided with a suction device (11) to produce suction for sucking dust from a drill hole (8)... | 09/21/2010 |
| 7751927 | Method and apparatus for automatic loading of dumper A method for loading a dumper with broken rock or the like and an apparatus for implementing the method. In the method, a loading area is defined for the dumper. The dumper is stopped at the loading area at a predefined position for loading. An emptying area is corr... | 07/06/2010 |
| 7743851 | Method and rock drilling rig for hole drilling The invention relates to a method and a rock drilling rig for drilling a hole in a rock. In the method the hole is drilled with a so-called top-hammer rock drilling rig including a drill rod and a cone roller bit at the end of the drill rod. During drilling with the... | 06/29/2010 |
| 7725232 | Arrangement for monitoring the location of a mining vehicle in a mine A method and a system for monitoring the location of a mining vehicle in a mine. The mine comprises a first and a second work area. At least one identifier (29) whose exact location is known is arranged in the first work area (18a). The location... | 05/25/2010 |
| 7717190 | Method for controlling percussion device, software production, and percussion device A method and software product for controlling a percussion device belonging to a rock-drilling machine, and a percussion device. The impact frequency of the percussion device is set so that the percussion device forms a new compression stress wave to the tool always... | 05/18/2010 |
| 7712545 | Telescopic feed beam for rock drill A telescopic feed beam for a rock drill includes a lower beam and an upper beam arranged to move with respect to each other in the longitudinal direction. The cross section of the lower beam is such that there is a groove-like open space at the bottom of the lower b... | 05/11/2010 |
| 7694748 | Rock breaking machine and lubricating method A rock breaking machine and to a method of lubricating a tool of a rock breaking machine. The lubricating system comprises at least one lubricant channel (23) into which lubricant is fed by a lubricating device (24). Lubricant is supplied to the bearin... | 04/13/2010 |
| 7681660 | Arrangement for positioning drilling unit A method and a software product for positioning a drilling unit in a rock drilling rig, and a rock drilling rig. The drilling unit (5) included in the rock drilling rig (1) is manually displaced towards a starting point (14) of a hole (19... | 03/23/2010 |
| 7654337 | Arrangement for controlling rock drilling A method for controlling rock drilling and a rock drilling arrangement having at least one feed channel of a feed actuator provided with a restrictor, which causes a pressure drop if the penetration rate increases and, consequently, a flow through the restrictor inc... | 02/02/2010 |
| 7654317 | Drill hole measuring device and rock drilling unit A drill hole measuring device and a rock drilling unit equipped with the measuring device. The measuring device (1) comprises a protective element (3), inside which a sensor (6) can be transferred by means of a transfer device (4). ... | 02/02/2010 |
| 7650920 | Method and arrangement for increasing safety when handling a wheel A Method and an arrangement for increasing safety when handling a wheel. The method comprises locking a fastening bolt of the rim in the vicinity of a wheel valve in place with a locking device. The arrangement comprises a locking device which locks at least one fas... | 01/26/2010 |
| 7643934 | Method and control system for positioning a mine vehicle A method and a control system for positioning a mine vehicle. Measurement of a distance travelled by the mine vehicle is based on monitoring rotation of a wheel. In the invention, an error caused in the distance measurement by wear of the wheel is compensated for au... | 01/05/2010 |
| 7642476 | Push-button arrangement and push-button A push-button arrangement and a push-button. The push-button comprises a fastening sleeve portion having a press portion at a first end thereof and a fastening member at a second end thereof for connecting the push-button to a fastening hole in a fastening plate. Th... | 01/05/2010 |
| 7634343 | Accurate positioning of an unmanned mine vehicle using stationary obstacles A method and system for stopping an unmanned mine vehicle in a predetermined position. The mine vehicle is driven at a low speed towards a physical. When the mine vehicle encounters the obstacle (7, 7a, 7b), a speed difference greater tha... | 12/15/2009 |
| 7617887 | Method for casing drilling, drilling unit and adapter device A method for casing drilling, a drilling unit and an adapter device. The adapter device to be used in extension drill equipment drilling comprises an inner piece which can be rotated by the rotation device of the rock drilling machine. Around the inner piece, there ... | 11/17/2009 |
| 7604070 | Arrangement for controlling percussive rock drilling A method and a storage device including a software product for controlling percussive rock drilling, and further a rock drilling rig to which the method is applied. The rotation resistance is monitored, the aim being to keep it below a desired reference value. To ad... | 10/20/2009 |
| 7492279 | System for managing borehole information A method and a system for managing information relating to boreholes and further an identifier utilized by the method and the system. An identifier which includes machine-readable information is arranged in connection with a borehole under examination. The readable ... | 02/17/2009 |
| 7477967 | Method for automatically guiding a mining machine A method for automatically controlling a mining machine. In the method a route is determined for a mining machine (14) in the form of successive, interconnected segments in a coordinate system fixed in a relation to the mine, the segments in turn being determ... | 01/13/2009 |
| 7464635 | Percussion device with a control valve for two alternately striking pistons The invention relates to a percussion device comprising two percussion pistons alternately making a percussion motion and a control valve for controlling the percussion pistons. The control valve (7) comprises a slide (8) affected by a force so that th... | 12/16/2008 |
| 7441608 | Percussion device with a transmission element compressing an elastic energy storing material A percussion device for a rock drilling machine or the like, which includes providing an impact, i.e. a stress pulse, to a tool connected to the percussion device. The the stress pulse is provided by way of a stress element of liquid, which is supported to a body of... | 10/28/2008 |
| 7419015 | Rock drilling machine and axial bearing An axial bearing includes a first piston and a second piston. Axial contact surfaces between the pistons are arranged in the same pressure space. The same pressure fluid fed to the axial bearing acts on the contact surfaces and on working pressure surfaces of the pi... | 09/02/2008 |
