Patents by Inventor Jonas Kristensen

Jonas Kristensen 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).

  • Patent number: 10180162
    Abstract: A rolling-element bearing includes a first ring having two raceways and at least one second ring having two raceways and rolling elements between the rings, and a ring raceway width is defined as an axial distance between the axially outer ends of the first ring raceways. A radially extending integral mounting flange extends from the first ring at a location between first and second sides of the first ring, and the flange has an axial abutment surface. A first shoulder extends from the first side toward the axial abutment surface. The first axial abutment surface is located an axial distance from the first side of the first ring, the axial distance being 10% to 50% of the ring raceway width, and a ratio of an outer diameter of the mounting flange to the width of the first ring raceways is from 5 to 25.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: January 15, 2019
    Assignee: AKTIEBOLAGET SKF
    Inventors: Peter Scheibner, Jonas Kristensen, Mats Persson, Jesko-Henning Tanke
  • Publication number: 20180023622
    Abstract: A rolling-element bearing includes a first ring having two raceways and at least one second ring having two raceways and rolling elements between the rings, and a ring raceway width is defined as an axial distance between the axially outer ends of the first ring raceways. A radially extending integral mounting flange extends from the first ring at a location between first and second sides of the first ring, and the flange has an axial abutment surface. A first shoulder extends from the first side toward the axial abutment surface. The first axial abutment surface is located an axial distance from the first side of the first ring, the axial distance being 10% to 50% of the ring raceway width, and a ratio of an outer diameter of the mounting flange to the width of the first ring raceways is from 5 to 25.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 25, 2018
    Inventors: Peter Scheibner, Jonas Kristensen, Mats Persson, Jesko-Henning Tanke
  • Patent number: 9541059
    Abstract: The invention relates to a tower part for a wind turbine including at least one wall segment and at least one aperture segment including at least one aperture. The wall segment and the aperture segment are connected and the aperture segment is of a substantially uniform thickness and is thicker than the thickness of the wall segment. The invention further related to an aperture cover system for covering at least one aperture in a tower part for a wind turbine including cover plates and attachments for attaching the system to the tower part, wherein the attachments do not affect the fatigue limit of the tower part. Finally, the invention relates to a method for manufacturing a wind turbine tower part and uses thereof.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: January 10, 2017
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Patent number: 9124153
    Abstract: Disclosed is a direct drive generator for a wind turbine, the generator including a rotor, a stator configured to remain stationary relative to the rotor, and at least one bearing connected to the stator. The rotor includes at least one rotor part extending circumferentially about an axis of rotation and a plurality of active materials arranged on a side of the at least one rotor part. The stator includes at least one stator part extending circumferentially about the axis of rotation and positioned adjacent to the at least one rotor part, and at least one winding arrangement supported by the at least one stator part and facing the plurality of active materials. The bearing is flexibly connected to the at least one stator part, wherein the bearing abuts the rotor part to help maintain a gap between the at least one winding arrangement and the active materials.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: September 1, 2015
    Assignee: Vestas Wind Systems A/S
    Inventors: Frank Møller Hansen, Jonas Kristensen
  • Publication number: 20140230223
    Abstract: The invention relates to a tower part for a wind turbine including at least one wall segment and at least one aperture segment including at least one aperture. The wall segment and the aperture segment are connected and the aperture segment is of a substantially uniform thickness and is thicker than the thickness of the wall segment. The invention further related to an aperture cover system for covering at least one aperture in a tower part for a wind turbine including cover plates and attachments for attaching the system to the tower part, wherein the attachments do not affect the fatigue limit of the tower part. Finally, the invention relates to a method for manufacturing a wind turbine tower part and uses thereof.
    Type: Application
    Filed: April 30, 2014
    Publication date: August 21, 2014
    Applicant: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Patent number: 8752337
    Abstract: The invention relates to a tower part for a wind turbine including at least one wall segment and at least one aperture segment including at least one aperture. The wall segment and the aperture segment are connected and the aperture segment is of a substantially uniform thickness and is thicker than the thickness of the wall segment. The invention further related to an aperture cover system for covering at least one aperture in a tower part for a wind turbine including cover plates and attachments for attaching the system to the tower part, wherein the attachments do not affect the fatigue limit of the tower part. Finally, the invention relates to a method for manufacturing a wind turbine tower part and uses thereof.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: June 17, 2014
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Patent number: 8701369
    Abstract: This invention relates to a tower for a wind turbine, comprising one or more tubular tower sections, having an outer jacket wall and an inward directed flange in its lower and upper ends, and at least one platform arranged inside the tower for facilitating access for maintenance and repairs to the inner of the tower and to the nacelle. The tower also comprises a support structure including at least three elongated tensile load carrying members, which each is attached in its upper end to the upper flange of the tower section and in its lower end to the lower flange of the tower section and which supports one or more platforms that are suspended by the tensile load carrying members while at least one ladder is attached to the platforms. The at least one ladder is stabilized in the horizontal direction by transversal tensile load carrying members extending from the ladder to the tensile load carrying members that are vertically arranged between the upper and lower flanges.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: April 22, 2014
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Patent number: 8671643
    Abstract: The invention relates to a wind turbine including a foundation and a tower positioned on the foundation where the tower includes more than one modules, where the modules each include a separate strengthening structure defining the outer edges of the module and wind turbine equipment, and where the more than one module are positioned substantially vertically on top of each other in an upright position within the tower. The modules are connected directly and/or indirectly through the strengthening structure, to the foundation. The invention further relates to a method for assembling a wind turbine at a wind turbine site and a method for handling more than one wind turbine modules.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: March 18, 2014
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Publication number: 20130277985
    Abstract: The present invention relates to a direct drive generator (1) for a wind turbine, the generator comprising a rotor (6) configured to rotate about an axis of rotation, a stator (2) configured to remain stationary relative to the rotor, and at least one bearing (5) connected to the stator (2). The rotor (6) comprises at least one rotor part (7) extending circumferentially about the axis of rotation and a plurality of active materials arranged on a side of the at least one rotor part. The stator (2) comprises at least one stator part (3) extending circumferentially about the axis of rotation and positioned adjacent to the at least one rotor part (7), and at least one winding arrangement (4) supported by the at least one stator part (3) and facing the plurality of active materials. The bearing (5) is flexibly connected to the at least one stator part (7), wherein the bearing (5) abuts the rotor part (3) to help maintain a gap (10) between the at least one winding arrangement (4) and the active materials.
    Type: Application
    Filed: January 5, 2011
    Publication date: October 24, 2013
    Applicant: VESTAS WIND SYSTEMS A/S
    Inventors: Frank Møller Hansen, Jonas Kristensen
  • Publication number: 20120306214
    Abstract: The invention relates to a wind turbine including a foundation and a tower positioned on the foundation where the tower includes more than one modules, where the modules each include a separate strengthening structure defining the outer edges of the module and wind turbine equipment, and where the more than one module are positioned substantially vertically on top of each other in an upright position within the tower. The modules are connected directly and/or indirectly through the strengthening structure, to the foundation. The invention further relates to a method for assembling a wind turbine at a wind turbine site and a method for handling more than one wind turbine modules.
    Type: Application
    Filed: August 1, 2012
    Publication date: December 6, 2012
    Applicant: VESTAS WIND SYSTEMS A/S
    Inventor: Jonas Kristensen
  • Patent number: 8225576
    Abstract: The invention relates to a wind turbine tower comprising a tower foundation, and at least two tower sections connected by numerous sets of connecting means positioned in close proximity of each other. The connecting means comprising at least one nut with at least one assembly opening for interacting with an assembly tool. The invention also relates to a method for assembling a wind turbine tower and a method for manufacturing a nut of connection means for fixating a wind turbine tower including at least two tower sections.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: July 24, 2012
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Patent number: 8191316
    Abstract: An off-shore wind turbine includes a tower, a pile forming at least part of a foundation carrying the tower, a radial distance element extending outward from the tower and the pile, and a plurality of connecting elements extending from the radial distance element to at least one of the tower and pile, the plurality of connecting elements being configured to vertically align the tower on the pile. A method of erecting the wind turbine tower is also disclosed.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: June 5, 2012
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Publication number: 20120117898
    Abstract: The invention relates to a tower part for a wind turbine including at least one wall segment and at least one aperture segment including at least one aperture. The wall segment and the aperture segment are connected and the aperture segment is of a substantially uniform thickness and is thicker than the thickness of the wall segment. The invention further related to an aperture cover system for covering at least one aperture in a tower part for a wind turbine including cover plates and attachments for attaching the system to the tower part, wherein the attachments do not affect the fatigue limit of the tower part. Finally, the invention relates to a method for manufacturing a wind turbine tower part and uses thereof.
    Type: Application
    Filed: January 24, 2012
    Publication date: May 17, 2012
    Applicant: VESTAS WIND SYSTEMS A/S
    Inventor: Jonas Kristensen
  • Patent number: 8117799
    Abstract: The disclosure relates to a method of erecting a tower comprising; —providing a foundation (1); —providing at least one top section (20) of a tower; —providing a first lifting mechanism (10) adapted to carry the top section (20); —providing at least one lower most tower section (25) onto the foundation (1); —lifting said at least one top section (20) of the tower by lifting the first lifting mechanism (10) relative said at least one lower most tower section (25); —adding at least one second lower most section (24) above said at least one lower most tower section (25); —lifting said at least one top section (20) of the tower by lifting the first lifting mechanism (10) relative said at least one second lower most tower section (25). Preferably a second lifting mechanism is carried by a nacelle which is rotatably arranged on the top section, thereby allowing the second lifting mechanism to be orientated in different orientations relative the top section.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: February 21, 2012
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Patent number: 8109061
    Abstract: A tower part for a wind turbine includes at least one wall segment and at least one aperture segment including at least one aperture. The wall segment and the aperture segment are connected and the aperture segment is of a substantially uniform thickness and is thicker than the thickness of the wall segment. The tower part further includes an aperture cover system for covering at least one aperture in a tower part for a wind turbine, including cover plates and attachments for attaching the system to the tower part, where the attachments do not affect the fatigue limit of the tower part.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: February 7, 2012
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Publication number: 20110252720
    Abstract: This invention relates to a tower for a wind turbine, comprising one or more tubular tower sections, having an outer jacket wall and an inward directed flange in its lower and upper ends, and at least one platform arranged inside the tower for facilitating access for maintenance and repairs to the inner of the tower and to the nacelle. The tower also comprises a support structure including at least three elongated tensile load carrying members, which each is attached in its upper end to the upper flange of the tower section and in its lower end to the lower flange of the tower section and which supports one or more platforms that are suspended by the tensile load carrying members while at least one ladder is attached to the platforms. The at least one ladder is stabilized in the horizontal direction by transversal tensile load carrying members extending from the ladder to the tensile load carrying members that are vertically arranged between the upper and lower flanges.
    Type: Application
    Filed: June 23, 2011
    Publication date: October 20, 2011
    Applicant: VESTAS WIND SYSTEMS A/S
    Inventor: Jonas Kristensen
  • Publication number: 20110203219
    Abstract: The disclosure relates to a method of erecting a tower comprising; —providing a foundation (1); —providing at least one top section (20) of a tower; —providing a first lifting mechanism (10) adapted to carry the top section (20); —providing at least one lower most tower section (25) onto the foundation (1); —lifting said at least one top section (20) of the tower by lifting the first lifting mechanism (10) relative said at least one lower most tower section (25); —adding at least one second lower most section (24) above said at least one lower most tower section (25); —lifting said at least one top section (20) of the tower by lifting the first lifting mechanism (10) relative said at least one second lower most tower section (25). Preferably a second lifting mechanism is carried by a nacelle which is rotatably arranged on the top section, thereby allowing the second lifting mechanism to be orientated in different orientations relative the top section.
    Type: Application
    Filed: October 20, 2009
    Publication date: August 25, 2011
    Applicant: VESTAS WIND SYSTEMS A/S
    Inventor: Jonas Kristensen
  • Patent number: 7805895
    Abstract: A foundation for enabling anchoring of a wind turbine tower thereto by means of replaceable through-bolts includes a foundation sole with a set of through-holes for accommodating the through-bolts, wherein the through-holes extend from an upper surface to a lower surface of the foundation sole; a workspace arranged beneath the foundation sole for enabling access to lower ends the through-bolts when arranged in the through-holes; and a passage allowing access to the workspace from a location outside an area of the foundation sole to be covered by the tower. A method for providing such a foundation is also disclosed.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: October 5, 2010
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Patent number: 7785040
    Abstract: This invention relates to a method for forming a mono pile foundation in soil for a wind turbine tower including drilling a plurality of holes into the soil, the plurality of holes being arranged along a curve having a contour corresponding to a cross-dimensional shape of the mono pile, and placing the mono pile in an annular cavity, the annular cavity being formed by the plurality of holes alone and/or by the mono pile breaking up intermediate soil walls between adjacent holes in the plurality of holes while being placed therein. A foundation in soil for a wind turbine tower, a wind turbine comprising such a foundation, and use of such a foundation in a wind turbine is also disclosed.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: August 31, 2010
    Assignee: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen
  • Publication number: 20100146890
    Abstract: A foundation for enabling anchoring of a wind turbine tower thereto by means of replaceable through-bolts includes a foundation sole with a set of through-holes for accommodating the through-bolts, wherein the through-holes extend from an upper surface to a lower surface of the foundation sole; a workspace arranged beneath the foundation sole for enabling access to lower ends the through-bolts when arranged in the through-holes; and a passage allowing access to the workspace from a location outside an area of the foundation sole to be covered by the tower. A method for providing such a foundation is also disclosed.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 17, 2010
    Applicant: Vestas Wind Systems A/S
    Inventor: Jonas Kristensen