Patents Assigned to Sandvik Mining and Construction RSA (PTY) Ltd.
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Patent number: 9062953Abstract: A rock breaking product which includes a sealed, elongate, flexible tube, a cartridge, with an energetic material, inside the tube and a valve arrangement for allowing the tube to be filled and expanded with water whereby the cartridge is placed in a mode in which the energetic material can be ignited.Type: GrantFiled: April 6, 2011Date of Patent: June 23, 2015Assignee: SANDVIK MINING AND CONSTRUCTION RSA (PTY) LTDInventor: Jarmo Uolevi Leppanen
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Patent number: 9010246Abstract: A surface blasting product which includes a container, a receptacle which contains adhesive which is displaceable to adhere the container to a rock, and an explosive charge, inside the container, which can be ignited to fragment or displace the rock.Type: GrantFiled: April 6, 2011Date of Patent: April 21, 2015Assignee: Sandvik Mining and Construction RSA (Pty) LtdInventor: Jarmo Uolevi Leppanen
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Patent number: 8763723Abstract: A cartridge for breaking rock which includes a tubular housing in which is formed a first compartment. The cartridge includes a first energetic composition inside the first compartment and a primer which is exposed to the first energetic composition. The cartridge includes a second compartment inside the tubular component and a plunger inside the tubular component which is movable under explosive force towards the primer. The cartridge still further includes a second energetic composition inside the second compartment and an actuator and a fuse for initiating the second energetic composition. The actuator has an area which is smaller than the cross-sectional area of the plunger and is movable, by movement of the plunger, towards the primer, and in that the primer is initiated by the actuator only when liquid fills a volume enclosed at least partly by surfaces of the actuator and of the primer.Type: GrantFiled: January 28, 2010Date of Patent: July 1, 2014Assignee: Sandvik Mining and Construction RSA (Pty) LtdInventors: Jarmo Uolevi Leppanen, Manfred Karl Heinrich Habeck
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Patent number: 8760289Abstract: A warning system in which an audio pulse train is continuously emitted from an item of equipment and wherein a person, exposed to the audio pulse train, carries a detector which, in response to detection of the pulse train, emits audio pulses which are detected at the item of equipment.Type: GrantFiled: October 22, 2009Date of Patent: June 24, 2014Assignee: Sandvik Mining and Construction RSA (Pty) Ltd.Inventors: Jarmo Uolevi Leppanen, Ockert Oosthuizen
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Publication number: 20130199393Abstract: A rock breaking product which includes a sealed, elongate, flexible tube, a cartridge, with an energetic material, inside the tube and a valve arrangement for allowing the tube to be filled and expanded with water whereby the cartridge is placed in a mode in which the energetic material can be ignited.Type: ApplicationFiled: April 6, 2011Publication date: August 8, 2013Applicant: SANDVIK MINING AND CONSTRUCTION RSA (PTY) LTDInventor: Jarmo Uolevi Leppanen
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Publication number: 20130145950Abstract: A surface blasting product which includes a container, a receptacle which contains adhesive which is displaceable to adhere the container to a rock, and an explosive charge, inside the container, which can be ignited to fragment or displace the rock.Type: ApplicationFiled: April 6, 2011Publication date: June 13, 2013Applicant: SANDVIK MINING AND CONSTRUCTION RSA (PTY) LTDInventor: Jarmo Uolevi Leppanen
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Patent number: 8251617Abstract: A rock anchor (10) which includes a cable (12) with a hollow core, an expansion mechanism (20) at one end of the cable, a tube (14), which acts on a load washer (16), in which part of the cable is located, and a wedge (18) which locks the cable to the tube.Type: GrantFiled: August 5, 2009Date of Patent: August 28, 2012Assignee: Sandvik Mining and Construction RSA (pty) LtdInventor: Jarmo Uolevi Leppanen
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Publication number: 20110266053Abstract: A rock breaking cartridge in which an energetic composition is ignited by an actuator which acts on a primer through the medium of water in a confined volume between the actuator and the primer.Type: ApplicationFiled: January 28, 2010Publication date: November 3, 2011Applicant: SANDVIK MINING AND CONSTRUCTION RSA (PTY) LTDInventors: Jarmo Uolevi Leppanen, Manfred Karl Heinrich Habeck
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Publication number: 20110260847Abstract: A warning system in which an audio pulse train is continuously emitted from an item of equipment and wherein a person, exposed to the audio pulse train, carries a detector which, in response to detection of the pulse train, emits audio pulses which are detected at the item of equipment.Type: ApplicationFiled: October 22, 2009Publication date: October 27, 2011Applicant: SANDVIK MINING AND CONSTRUCTION RSA (PTY) LTDInventors: Jarmo Uolevi Leppanen, Ockert Oosthuizen
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Patent number: 8015921Abstract: 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: GrantFiled: September 8, 2008Date of Patent: September 13, 2011Assignee: Sandvik Mining and Construction RSA (PTY) Ltd.Inventors: Jarmo Leppanen, Ockert Oosthuizen
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Publication number: 20100300317Abstract: 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: ApplicationFiled: September 8, 2008Publication date: December 2, 2010Applicant: Sandvik Mining and Construction RSA (PTY) LTDInventors: Jarmo Leppanen, Ockert Oosthuizen