Patents by Inventor Jarmo Uolevi Leppanen
Jarmo Uolevi Leppanen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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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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Publication number: 20150118072Abstract: A high pressure pumping system in which a first pump delivers a medium to a discharge port and to a second pump which subsequently delivers the medium to the discharge port.Type: ApplicationFiled: May 8, 2013Publication date: April 30, 2015Inventor: 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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Publication number: 20110135402Abstract: 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: ApplicationFiled: August 5, 2009Publication date: June 9, 2011Inventor: Jarmo Uolevi Leppanen
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Patent number: 5875857Abstract: A hydraulically operated rock drill including a cylinder, a piston mounted for reciprocating movement in the cylinder, a hydraulic fluid line connected to the cylinder, and an accumulator. A chamber with a section of reduced dimensions is formed in the cylinder, and the piston includes an annular formation which moves within the chamber and into and out of the section as the piston reciprocates. The accumulator is connected via a port to the section, and the hydraulic fluid line is connected to the chamber and is in communication with the accumulator when the annular formation is out of the section and which is cut off from the accumulator, by the annular formation, when the annular formation moves into the section, the annular formation then pressurizing hydraulic fluid in the section whereby hydraulic energy, produced by kinetic energy developed over at least part of a return stroke of the piston, is stored in the accumulator. A second accumulator is connected at least to the high pressure line.Type: GrantFiled: September 20, 1996Date of Patent: March 2, 1999Inventors: Jarmo Uolevi Leppanen, Roger Robarts Briggs
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Patent number: 5794717Abstract: A rock drill with a percussion mechanism which includes a piston, a body in which is formed a chamber, at least a first cylinder which is located in the chamber and which, on an inner side, forms at least part of a sleeve for the piston, and a valve, for controlling movement of the piston, which is located on an outer side of the first cylinder. A stop structure integrally attached to the first cylinder prevents the valve from being removed.Type: GrantFiled: October 20, 1995Date of Patent: August 18, 1998Inventors: Roger Robarts Briggs, Jarmo Uolevi Leppanen
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Patent number: 5771981Abstract: A control system for a percussion drill with a hydraulically actuated drill rotation mechanism and drill feed mechanism which includes a control means which operates, in response to the hydraulic pressure in the drill feed mechanism, to start percussion movement of the drill.Type: GrantFiled: October 20, 1995Date of Patent: June 30, 1998Inventors: Roger Robarts Briggs, Jarmo Uolevi Leppanen
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Patent number: 5771982Abstract: A rock drill which includes a main body with a chamber which is formed in the main body at a first end of the main body, and a rotation module which includes a gear housing, at least the gear housing being mounted in the chamber.Type: GrantFiled: October 19, 1995Date of Patent: June 30, 1998Inventors: Roger Robarts Briggs, Jarmo Uolevi Leppanen
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Patent number: 5678642Abstract: A drilling arrangement wherein a cylinder of a multistage telescopic feed mechanism acts on a drill to move it in a first direction and two pistons extend from the cylinder only in a second direction opposite to the first direction, acting against a feed beam.Type: GrantFiled: October 18, 1995Date of Patent: October 21, 1997Inventors: Roger Robarts Briggs, Jarmo Uolevi Leppanen