Patents by Inventor Niklas Aberg
Niklas Aberg 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: 10493459Abstract: A gyratory crusher includes an eccentric having an inner slide bearing surface and an outer slide bearing surface, the inner slide bearing surface defining, together with an opposing slide bearing surface, an inner slide bearing. The outer slide bearing surface defines, together with another opposing slide bearing surface, an outer slide bearing. The eccentric is rotatably connected to a crusher frame so as to allow a rotation about an eccentric axis of rotation, which is fixed relative to the frame. The eccentric axis of rotation is defined by one of the inner and outer slide bearings. The inner slide bearing has a total height-to-diameter quotient (H1/D1) of less than 1.0.Type: GrantFiled: June 19, 2013Date of Patent: December 3, 2019Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Niklas Aberg, Jan Johansson, Patric Malmqvist, Arvid Svensson
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Patent number: 10189024Abstract: A gyratory crusher frame part and a gyratory crusher include a topshell and spider assembly configured to minimize stress concentrations. An annular flange is formed at the junction between a lower region of each spider arm and an upper region of the topshell. Optimization of loading force transfer and a reduction in stress concentration is achieved by positioning the spider arms radially inward relative to an outer circumferential perimeter of the flange.Type: GrantFiled: March 18, 2013Date of Patent: January 29, 2019Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Niklas Aberg, Axel Bergman, Gustav Bern, Bengt-Arne Eriksson, Mikael M Larsson, Patric Malmqvist
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Patent number: 9827569Abstract: A gyratory crusher frame part includes a topshell mountable on a bottom shell, the topshell having an annular wall extending around a longitudinal axis. A spider having a plurality of arms extending radially outward from a cap is positioned at the longitudinal axis. Each arm has a first portion extending in a radially outward direction from the cap and a second portion extending in an axial direction from an outer region of the first portion. An annular flange is positioned between the second portion of each arm and the annular wall. The annular wall is defined between an outward and inward facing surface of the annular wall. A section of the wall neighboring the flange includes a concave section at the outward facing surface. A first half of the concave section closest to the flange is a substantially uniform curve extending continuously in the circumferential direction around the longitudinal axis.Type: GrantFiled: March 19, 2013Date of Patent: November 28, 2017Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Niklas Aberg, Axel Bergman, Gustav Bern, Bengt-Arne Eriksson, Mikael M Larsson, Patric Malmqvist
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Patent number: 9827568Abstract: A gyratory crusher main shaft sleeve friction fit over an uppermost end of a crusher main shaft. The sleeve includes an elongate axial wall for being positioned in contact with an outward facing surface of the main shaft. The axial wall has a thickness that decreases in a direction from a second upper end to a first lower end, wherein the internal facing surface of the sleeve extends transverse to a longitudinal axis of the sleeve so as to taper inwardly towards the axis in a direction from the first to the second end.Type: GrantFiled: June 20, 2013Date of Patent: November 28, 2017Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Niklas Aberg, Bengt-Arne Eriksson, Fredrik Rosdahl
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Publication number: 20150290649Abstract: A gyratory crusher includes an eccentric having an inner slide bearing surface and an outer slide bearing surface, the inner slide bearing surface defining, together with an opposing slide bearing surface, an inner slide bearing. The outer slide bearing surface defines, together with another opposing slide bearing surface, an outer slide bearing. The eccentric is rotatably connected to a crusher frame so as to allow a rotation about an eccentric axis of rotation, which is fixed relative to the frame. The eccentric axis of rotation is defined by one of the inner and outer slide bearings. The inner slide bearing has a total height-to-diameter quotient (H1/D1) of less than 1.0.Type: ApplicationFiled: June 19, 2013Publication date: October 15, 2015Inventors: Niklas Aberg, Jan Johansson, Patric Malmqvist, Arvid Svensson
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Publication number: 20150202630Abstract: A gyratory crusher main shaft sleeve friction fit over an uppermost end of a crusher main shaft. The sleeve includes an elongate axial wall for being positioned in contact with an outward facing surface of the main shaft. The axial wall has a thickness that decreases in a direction from a second upper end to a first lower end, wherein the internal facing surface of the sleeve extends transverse to a longitudinal axis of the sleeve so as to taper inwardly towards the axis in a direction from the first to the second end.Type: ApplicationFiled: June 20, 2013Publication date: July 23, 2015Inventors: Niklas Aberg, Bengt-Arne Eriksson, Fredrik Rosdahl
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Publication number: 20150202629Abstract: A gyratory crusher includes an eccentric provided with a first envelope surface and a second envelope surface. A third envelope surface extends about a central axis and has a longitudinal extension along the central axis. A first slide bearing and a second slide bearing are provided between the first and third envelope surfaces. The first and second slide bearings are vertically separated from each other such that a distance-to-height quotient (VDi/H1; VDi/H2) of the first or second slide bearing that has the greatest height (H1; H2) is greater than 0.8.Type: ApplicationFiled: June 19, 2013Publication date: July 23, 2015Inventors: Niklas Aberg, Bengt-Arne Eriksson
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Publication number: 20150060584Abstract: A gyratory crusher frame part and a gyratory crusher include a topshell and spider assembly configured to minimize stress concentrations. An annular flange is formed at the junction between a lower region of each spider arm and an upper region of the topshell. Optimization of loading force transfer and a reduction in stress concentration is achieved by positioning the spider arms radially inward relative to an outer circumferential perimeter of the flange.Type: ApplicationFiled: March 18, 2013Publication date: March 5, 2015Applicant: Sandvik Intellectual Property ABInventors: Niklas Aberg, Axel Bergman, Gustav Bern, Bengt-Arne Eriksson, Mikael M Larsson, Patric Malmqvist
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Publication number: 20150053803Abstract: A gyratory crusher frame part includes a topshell mountable on a bottom shell, the topshell having an annular wall extending around a longitudinal axis. A spider having a plurality of arms extending radially outward from a cap is positioned at the longitudinal axis. Each arm has a first portion extending in a radially outward direction from the cap and a second portion extending in an axial direction from an outer region of the first portion. An annular flange is positioned between the second portion of each arm and the annular wall. The annular wall is defined between an outward and inward facing surface of the annular wall. A section of the wall neighbouring the flange includes a concave section at the outward facing surface. A first half of the concave section closest to the flange is a substantially uniform curve extending continuously in the circumferential direction around the longitudinal axis.Type: ApplicationFiled: March 19, 2013Publication date: February 26, 2015Inventors: Niklas Aberg, Axel Bergman, Gustav Bern, Bengt-Arne Eriksson, Mikael M Larsson, Patric Malmqvist
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Publication number: 20140097282Abstract: A cylindrical, hollow piston for a gyratory crusher includes a piston wall, a piston top and a piston bottom. The piston wall includes at least one opening leading into an inner chamber of the hollow piston. The piston wall has an outer sliding surface and an inner chamber surface.Type: ApplicationFiled: May 29, 2012Publication date: April 10, 2014Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventors: Bengt-Arne Eriksson, Martin Nilsson, Niklas Aberg
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Publication number: 20110006143Abstract: A gyratory crusher includes a crushing head, which is arranged rotatably on a substantially vertical shaft and on which a first crushing shell is mounted, and a frame, on which a second crushing shell is mounted, which second crushing shell, together with the first crushing shell, delimits a crushing gap. A supporting piston is arranged inside a cavity of the shaft, which supporting piston is displaceable in the vertical direction in order to adjust the width of the crushing gap. An eccentric is, by means of at least one radial bearing, arranged rotatably about the shaft. The gyratory crusher has an oil line, arranged in the cavity and extending through a piston plate included in the supporting piston, for supplying lubricating oil to a lubricating oil chamber configured at least partially in the cavity above the piston plate, the lubricating oil chamber being connected to the radial bearing by a duct arranged in the shaft.Type: ApplicationFiled: July 6, 2010Publication date: January 13, 2011Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventors: Johan Gunnarsson, Niklas Ã…berg
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Patent number: D716853Type: GrantFiled: January 9, 2013Date of Patent: November 4, 2014Assignee: Sandvik Mining and Construction OyInventors: Patric Malmqvist, Bengt-Arne Eriksson, Niklas Aberg, Gustav Bern, Axel Bergman, Mikael Larsson