Patents by Inventor Johan Gunnarsson
Johan Gunnarsson 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: 8870105Abstract: A cone crusher has an outer crushing shell and an inner crushing shell with a crushing gap formed therebetween. The outer crushing shell is supported on an upper frame member in threaded engagement with a lower frame member. The threaded engagement is configured for adjusting the vertical position of the outer crushing shell relative to the lower frame member so as to permit adjustment of the width of the crushing gap. The upper frame member is provided with a circumferential gear ring for turning the upper frame member in the threaded engagement. The gear ring is connected to the upper frame member in a rotationally locked and vertically slidable manner The cone crusher includes a clamping arrangement for vertically clamping the gear ring between an upper clamping member and a lower clamping member.Type: GrantFiled: June 29, 2012Date of Patent: October 28, 2014Assignee: Sandvik Mining and Construction OyInventors: Johan Gunnarsson, Konstantin Belotserkovskiy
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Publication number: 20140175199Abstract: A cone crusher has an outer crushing shell and an inner crushing shell with a crushing gap formed therebetween. The outer crushing shell is supported on an upper frame member in threaded engagement with a lower frame member. The threaded engagement is configured for adjusting the vertical position of the outer crushing shell relative to the lower frame member so as to permit adjustment of the width of the crushing gap. The upper frame member is provided with a circumferential gear ring for turning the upper frame member in the threaded engagement. The gear ring is connected to the upper frame member in a rotationally locked and vertically slidable manner. The cone crusher includes a clamping arrangement for vertically clamping the gear ring between an upper clamping member and a lower clamping member.Type: ApplicationFiled: June 29, 2012Publication date: June 26, 2014Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventors: Johan Gunnarsson, Konstantin Belotserkovskiy
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Publication number: 20140110514Abstract: A cone crusher includes an inner crushing shell supported on a crushing head and clamped thereon by a retaining arrangement, the crushing head being arranged for rotating about a crushing head axis. The retaining arrangement includes a first portion of a threaded joint for self-tightening the retaining arrangement. The first portion is concentric with the crushing head axis and rigidly joined with the crushing head. A first portion of a form-fitting engagement arrangement is rigidly joined with the inner crushing shell. A crushing shell tightener is provided with a second portion of the threaded joint and a second portion of the form-fitting engagement arrangement. The form-fitting engagement arrangement rotationally locks the crushing shell tightener to the inner crushing shell.Type: ApplicationFiled: May 29, 2012Publication date: April 24, 2014Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventors: Konstantin Belotserkovskiy, Johan Gunnarsson
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Patent number: 8624781Abstract: A system suitable for displaying a target. A first unit is arranged to generate a first information unit including the target's position relative to a first position. The first information unit is arranged to transfer the first information unit to a second unit existing at a second position which is separate from the first position. The second unit is arranged to generate a second information unit including the target's position relative to the second position, depending on the first information unit. The second unit is arranged to indicate the target's position to allow localization of the target.Type: GrantFiled: May 24, 2006Date of Patent: January 7, 2014Assignee: Bae Systems Bofors ABInventors: Jan Christensen, Peter Freij, Jyri Viuhko, Johan Gunnarsson
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Patent number: 8240587Abstract: 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: GrantFiled: July 6, 2010Date of Patent: August 14, 2012Assignee: Sandvik Intellectual Property ABInventors: Johan Gunnarsson, Niklas Åberg
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Patent number: 8230876Abstract: An apparatus for handling a hose arranged in a hose housing. The hose is in successive order connected to a fuel supply connection, passes a first roll, passes a second roll and extends through an opening in the hose housing, towards a nozzle end of the hose. The first roll is attached to the housing by at least one resilient element and a first carrier part having the form of a swing lever, and the second roll is attached to the housing by at least a second carrier part, to allow extracting and retracting of the hose through the opening. Moreover, a method for handling a hose as well as a fuel dispensing unit are described.Type: GrantFiled: April 9, 2007Date of Patent: July 31, 2012Assignee: Dresser, Inc.Inventors: Johan Gunnarsson, Annika Birkler
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Patent number: 8020801Abstract: A gyratory crusher has a crushing head on which a first crushing shell is mounted, a frame on which a second crushing shell is mounted, and a driving device, which is arranged with a rotating eccentric to cause the crushing head to execute a gyratory movement for crushing of material. The crushing head is connected to the frame of a rotation-restricting arrangement, which comprises a beater in a tank. Spinning of the crushing head is restricted by the beater being braked, during operation of the crusher, by a liquid contained in the tank.Type: GrantFiled: December 18, 2009Date of Patent: September 20, 2011Assignee: Sandvik Intellectual Property ABInventors: Bengt-Arne Eriksson, Johan Gunnarsson, Percy Norrman, Kjell-Åke Svensson
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Patent number: 7931219Abstract: An anti-spin assembly is arranged in a gyratory crusher. The anti-spin assembly includes an expandable braking receptacle, which is adapted to be expanded by way of a pressure medium. The braking receptacle is arranged in a space between a first surface formed on a part which rotates with the crushing head and a second surface formed on a non-rotary part which is connected to the frame bottom part. The braking receptacle is arranged, when expanding, to engage both the first and the second surface, thereby braking the rotation of the crushing head.Type: GrantFiled: May 14, 2009Date of Patent: April 26, 2011Assignee: Sandvik Intellectual Property ABInventors: Bengt-Arne Eriksson, Johan Gunnarsson, Percy Norrman
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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 Åberg
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Patent number: 7850103Abstract: A crusher system includes a gyratory crusher, which has a crushing head, on which a first crushing shell is mounted; a frame, on which a second crushing shell is mounted; and a driving device, which is arranged to cause, by means of a rotating eccentric, the crushing head to execute a gyratory movement for crushing material. The crusher system includes a device for generating a signal that indicates the current tendency of the crushing head to spin; a device arranged to establish, based on the signal, a maximum allowable rotational speed for the eccentric; and a device arranged to adapt the rotational speed of the eccentric to a rotational speed that is lower than the maximum allowable rotational speed.Type: GrantFiled: May 29, 2009Date of Patent: December 14, 2010Assignee: Sandvik Intellectual Property ABInventors: Bengt-Arne Eriksson, Johan Gunnarsson
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Publication number: 20100163660Abstract: A gyratory crusher has a crushing head on which a first crushing shell is mounted, a frame on which a second crushing shell is mounted, and a driving device, which is arranged with a rotating eccentric to cause the crushing head to execute a gyratory movement for crushing of material. The crushing head is connected to the frame of a rotation-restricting arrangement, which comprises a beater in a tank. Spinning of the crushing head is restricted by the beater being braked, during operation of the crusher, by a liquid contained in the tank.Type: ApplicationFiled: December 18, 2009Publication date: July 1, 2010Applicant: Sandvik Intellectual Property ABInventors: Bengt-Arne ERIKSSON, Johan Gunnarsson, Percy Norrman, Kjell-Ake Svensson
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Publication number: 20090294559Abstract: A crusher system includes a gyratory crusher, which has a crushing head, on which a first crushing shell is mounted; a frame, on which a second crushing shell is mounted; and a driving device, which is arranged to cause, by means of a rotating eccentric, the crushing head to execute a gyratory movement for crushing material. The crusher system includes a device for generating a signal that indicates the current tendency of the crushing head to spin; a device arranged to establish, based on the signal, a maximum allowable rotational speed for the eccentric; and a device arranged to adapt the rotational speed of the eccentric to a rotational speed that is lower than the maximum allowable rotational speed.Type: ApplicationFiled: May 29, 2009Publication date: December 3, 2009Applicant: Sandvik Intellectual Property ABInventors: Bengt-Arne Eriksson, Johan Gunnarsson
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Publication number: 20090283616Abstract: An anti-spin assembly is arranged in a gyratory crusher. The anti-spin assembly includes an expandable braking receptacle, which is adapted to be expanded by way of a pressure medium. The braking receptacle is arranged in a space between a first surface formed on a part which rotates with the crushing head and a second surface formed on a non-rotary part which is connected to the frame bottom part. The braking receptacle is arranged, when expanding, to engage both the first and the second surface, thereby braking the rotation of the crushing head.Type: ApplicationFiled: May 14, 2009Publication date: November 19, 2009Inventors: Bengt-Arne ERIKSSON, Johan GUNNARSSON, Percy NORRMAN
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Publication number: 20090184870Abstract: A system suitable for displaying a target. A first unit is arranged to generate a first information unit including the target's position relative to a first position. The first information unit is arranged to transfer the first information unit to a second unit existing at a second position which is separate from the first position. The second unit is arranged to generate a second information unit including the target's position relative to the second position, depending on the first information unit. The second unit is arranged to indicate the target's position to allow localization of the target.Type: ApplicationFiled: May 24, 2006Publication date: July 23, 2009Applicant: BAE Systems Bofors ABInventors: Jan Christensen, Peter Freij, Jyri Viuhko, Johan Gunnarsson
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Publication number: 20080000528Abstract: An apparatus for handling a hose arranged in a hose housing. The hose is in successive order connected to a fuel supply connection, passes a first roll, passes a second roll and extends through an opening in the hose housing, towards a nozzle end of the hose. The first roll is attached to the housing by at least one resilient element and a first carrier part having the form of a swing lever, and the second roll is attached to the housing by at least a second carrier part, to allow extracting and retracting of the hose through the opening. Moreover, a method for handling a hose as well as a fuel dispensing unit are described.Type: ApplicationFiled: April 9, 2007Publication date: January 3, 2008Inventors: Johan Gunnarsson, Annika Birkler
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Publication number: 20050251942Abstract: The holder device has an elongate member (12) that has an upwardly protruding tip (14). A holder segment (16) is attached to a side edge (18) of the elongate member. The holder device has an upper section (20) extending over the member (12) to an opposite side edge (23). The elongate member (12) has an upper surface (24) with a high friction area (26) disposed thereon.Type: ApplicationFiled: April 15, 2005Publication date: November 17, 2005Inventor: Johan Gunnarsson