Patents by Inventor Mikael M Larsson
Mikael M Larsson 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: 11014090Abstract: A gyratory crusher main shaft assembly has a main shaft, an axially upper region of the main shaft including a tapered conical section with a protective sleeve friction fitted over the cone. To facilitate mounting and dismounting of the sleeve, at least one groove is indented within a radially external facing surface of the main shaft at the region of the cone to allow fluid to be introduced under pressure to the region between the sleeve and the cone.Type: GrantFiled: May 23, 2014Date of Patent: May 25, 2021Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Axel Bergman, Mikael M Larsson, Patric Malmqvist, Anders Hallberg, Matts-Ake Nilsson, Fredrik Eriksson, Bengt-Arne Eriksson, Anne Holmberg
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Patent number: 10751721Abstract: A gyratory crusher spider arm shield for releasable mounting to a spider arm is mounted in a position above and around the spider arm via locating feet and is maintained in the position by a fixating ring extending circumferentially around the spider arms and positioned at and above a perimeter of the spider.Type: GrantFiled: October 9, 2014Date of Patent: August 25, 2020Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Anders Hallberg, Mikael M. Larsson
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Patent number: 10434516Abstract: A gyratory crusher spider wall shield for releasable mounting to a radially inward facing face of a spider positioned on top of a shell of a gyratory crusher includes a primary protection wall positionable over the inward face of the spider and a rear wall attachable to an outer annular fixating ring positionable axially intermediate a material input hopper and the spider.Type: GrantFiled: October 9, 2014Date of Patent: October 8, 2019Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Anders Hallberg, Mikael M. Larsson
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Patent number: 10391500Abstract: A gyratory crusher shell has an annular wall extending around a longitudinal axis. A plurality of ears project radially outward from an annular rim of the topshell with each ear including a respective lug to sit within a corresponding recess at an annular rim of the topshell to rotatably lock the crushing shell at the topshell.Type: GrantFiled: July 3, 2015Date of Patent: August 27, 2019Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Mikael M Larsson, Anders Hallberg
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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: 10179335Abstract: A crusher wear resistant liner for positioning at a crusher bottom shell includes a plurality of modular wear resistant plates mountable at an inside surface of the bottom shell and positioned side-by-side to surround and protect the bottom shell interior. To prevent independent dislodgement of each plate and liner, respective inter-engaging formations are provided at each plate to contact at least one adjacent plate of the assembly to arrest any unintentional downward movement in the event that the primary fixings become ineffective.Type: GrantFiled: October 8, 2013Date of Patent: January 15, 2019Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Patric Malmqvist, Mikael M. Larsson, Bengt-Arne Eriksson, Axel Bergman
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Patent number: 10173221Abstract: A gyratory crusher crushing head, removably mounted a crushing shell, includes a circumferential groove is formed in an outer facing surface of the crushing head. The groove is positioned towards a second lower end at the outward facing surface relative to an axial length of the crushing head. The groove and its relative axial positioning minimizes the stress concentrations at the crushing head resulting from forces tangential to the outward facing surface.Type: GrantFiled: March 19, 2013Date of Patent: January 8, 2019Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Axel Bergman, Gustav Bern, Bengt-Arne Eriksson, Mikael M Larsson, Patric Malmqvist
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Publication number: 20180161776Abstract: A gyratory crusher shell has an annular wall extending around a longitudinal axis. A plurality of ears project radially outward from an annular rim of the topshell with each ear including a respective lug to sit within a corresponding recess at an annular rim of the topshell to rotatably lock the crushing shell at the topshell.Type: ApplicationFiled: July 3, 2015Publication date: June 14, 2018Inventors: Mikael M LARSSON, Anders HALLBERG
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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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Publication number: 20170304832Abstract: A gyratory crusher spider arm shield for releasable mounting to a spider arm is mounted in a position above and around the spider arm via locating feet and is maintained in the position by a fixating ring extending circumferentially around the spider arms and positioned at and above a perimeter of the spider.Type: ApplicationFiled: October 9, 2014Publication date: October 26, 2017Inventors: Anders HALLBERG, Mikael M. LARSSON
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Publication number: 20170304831Abstract: A gyratory crusher spider wall shield for releasable mounting to a radially inward facing face of a spider positioned on top of a shell of a gyratory crusher includes a primary protection wall positionable over the inward face of the spider and a rear wall attachable to an outer annular fixating ring positionable axially intermediate a material input hopper and the spider.Type: ApplicationFiled: October 9, 2014Publication date: October 26, 2017Inventors: Anders HALLBERG, Mikael M. LARSSON
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Patent number: 9486805Abstract: A crusher feed distributor for mounting at a crusher input hopper of a crusher. The feed distributor includes a guide body to contact and distribute the flow of feed material and a mounting assembly to mount the guide body at the input hopper. The mounting assembly is specifically configured with a plurality of independent mounts that collectively provide four adjustments and decrease of freedom corresponding to three lateral adjustments and one rotational adjustment.Type: GrantFiled: January 28, 2014Date of Patent: November 8, 2016Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Zeljko Nikolic, Axel Bergman, Mikael M. Larsson, Patric Malmqvist, Bengt-Arne Eriksson
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Publication number: 20160279641Abstract: A crusher feed distributor for mounting at a crusher input hopper of a crusher. The feed distributor includes a guide body to contact and distribute the flow of feed material and a mounting assembly to mount the guide body at the input hopper. The mounting assembly is specifically configured with a plurality of independent mounts that collectively provide four adjustments and decrease of freedom corresponding to three lateral adjustments and one rotational adjustment.Type: ApplicationFiled: January 28, 2014Publication date: September 29, 2016Inventors: Zeljko NIKOLIC, Axel BERGMAN, Mikael M. LARSSON, Patric MALMQVIST, Bengt-Arne ERIKSSON
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Publication number: 20160271614Abstract: A gyratory crusher main shaft assembly has a main shaft, an axially upper region of the main shaft including a tapered conical section with a protective sleeve friction fitted over the cone. To facilitate mounting and dismounting of the sleeve, at least one groove is indented within a radially external facing surface of the main shaft at the region of the cone to allow fluid to be introduced under pressure to the region between the sleeve and the cone.Type: ApplicationFiled: May 23, 2014Publication date: September 22, 2016Inventors: Axel BERGMAN, Mikael M LARSSON, Patric MALMQVIST, Anders HALLBERG, Matts-Ake NILSSON, Fredrik ERIKSSON, Bengt-Arne ERIKSSON, Anne HOLOMBERG
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Publication number: 20160236198Abstract: A gyratory crusher bottom shell and/or bottom shell assembly include protective liners that are mounted over and about respective support arms that extend radially between the bottom shell wall and a central hub. The support arms have a seat or saddle region with at least a part of the liner positioned in contact with and supported by the seat to distribute the mass of the liner radially between the hub and the shell wall and to reduce tension in the primary attachment bolts.Type: ApplicationFiled: September 22, 2014Publication date: August 18, 2016Inventors: Zeljko NIKOLIC, Anders HALLBERG, Mikael M. LARSSON, Bengt-Arne ERIKSSON, Axel BERGMAN, Patric MALMQVIST
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Patent number: 9358545Abstract: A gyratory crusher spider arm shield is configured for releasable attachment to a spider arm. The shield includes a main body having an underside foot for engaging onto an upper region of the arm. The secure attachment is provided by cooperation between an attachment element that extends radially inward from an outermost end of the shield and a mount guide provided at sidewalls of the shield that extend laterally each side of the spider arm.Type: GrantFiled: January 27, 2014Date of Patent: June 7, 2016Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Axel Bergman, Bengt-Arne Eriksson, Mikael M. Larsson, Patric Malmqvist
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Publication number: 20160051987Abstract: A crusher inspection hatch assembly is provided at a crusher. The hatch assembly includes a frame surrounding the hatch opening and a door to close the opening when the hatch is not in use. A plurality of attachment elements secure the door to the frame. Each attachment element has a shaft and a nut with at least the nut component of the attachment element being prevented from separating from the hatch assembly via at least one abutment flange.Type: ApplicationFiled: March 17, 2014Publication date: February 25, 2016Inventors: Bengt-Arne ERIKSSON, Patric MALMQVIST, Axel BERGMAN, Mikael M LARSSON
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Publication number: 20160016175Abstract: A gyratory crusher spider arm shield is configured for releasable attachment to a spider arm. The shield includes a main body having an underside foot for engaging onto an upper region of the arm. The secure attachment is provided by cooperation between an attachment element that extends radially inward from an outermost end of the shield and a mount guide provided at sidewalls of the shield that extend laterally each side of the spider arm.Type: ApplicationFiled: January 27, 2014Publication date: January 21, 2016Inventors: Axel BERGMAN, Bengt-Arne ERIKSSON, Mikael M. LARSSON, Patric MALMQVIST
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Publication number: 20160008817Abstract: A gyratory crusher eccentric support assembly supports the gyroscopic precession of a main shaft extending through the crusher. The eccentric assembly includes an inner bushing retained in position by a surrounding sleeve with the sleeve supported at its axially uppermost region by an annular support ring. A locking flange prevents axial displacement of the bushing that is configured specifically to facilitate the removal and replacement of the bushing wear part.Type: ApplicationFiled: January 27, 2014Publication date: January 14, 2016Inventors: Axel BERGMAN, Bengt-Arne ERIKSSON, Mikael M. LARSSON, Patric MALMQVIST
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Publication number: 20150314301Abstract: A crusher feed hopper guide assembly directs material to be crushed through a lower region of an internal chamber of a feed hopper. The feed guide includes a modular construction with individual units positioned side-by-side to define a conical funnel within the hopper chamber. A plurality of wear liners are removably mounted on a plurality of common supports, with the wear liners and the modular units being removably mounted at the hopper for convenient assembly and disassembly to facilitate maintenance.Type: ApplicationFiled: November 6, 2013Publication date: November 5, 2015Inventors: Axel BERGMAN, Bengt-Arne ERIKSSON, Fredrik ERIKSSON, Mikael M. LARSSON, Patric MALMQVIST