Patents by Inventor Bo Pedersen

Bo Pedersen 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).

  • Publication number: 20140321781
    Abstract: An arrangement to control the clearance of a sliding bearing is disclosed. A sliding bearing arrangement, of a direct driven wind turbine, comprises a bearing. The bearing comprises a first bearing shell and a second bearing shell, whereby the first bearing shell and the second bearing shell are arranged rotatable in respect to each other. A certain predetermined clearance is present between the first bearing shell and the second bearing shell, while the bearing is in rotation. A first circuit comprises a first fluid, while the first circuit is in thermal contact with the first bearing shell. A second circuit comprises a second fluid, while the second circuit is in thermal contact with the second bearing shell. The first circuit and the second circuit are coupled in a way that a difference in the temperature between the first bearing shell and the second bearing shell is compensated via the first and the second fluid, thus the clearance is kept within a predetermined range.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 30, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: BO PEDERSEN, KIM THOMSEN
  • Publication number: 20140193262
    Abstract: A direct driven wind turbine with a plain bearing and a service method for this bearing is provided. A rotor is directly connected with a rotatable drive train, which is directly connected with a rotor of an electrical generator. The rotatable drive train is connected with a stationary part via at least one bearing, which allows the rotation of the drive train in relation to the stationary part. The generator provides a support structure to which the stationary side of the at least one bearing is mounted. The at least one bearing is a plain bearing and the plain bearing comprises a wear-and-tear-part, which is an object to be exchanged. The rotatable drive train is prepared to be fastened to the stationary part and at least one wear-and-tear-part of the plain bearing is exchangeable while the rotatable drive train is fastened to the stationary part.
    Type: Application
    Filed: August 10, 2012
    Publication date: July 10, 2014
    Applicant: Siemens Aktiengesellschaft
    Inventors: Bo Pedersen, Kim Thomsen
  • Publication number: 20140193264
    Abstract: A direct driven wind turbine and the main bearing used in such a wind turbine is provided. The rotating drive train is connected with a stationary part of the wind turbine via at least one bearing, which allows the rotation of the drive train in relation to the stationary part. The at least one bearing is a plain bearing; the bearing comprises at least one cylindrical sliding surface constructed to support radial loads present in the drive train. The bearing comprises at least two radial bearing surfaces constructed to support axial loads and bending moments present in the drive train. The surface areas of the radial bearing surfaces is dimensioned proportional to a predetermined maximum total load of the bending moments expected in the drive train.
    Type: Application
    Filed: August 10, 2012
    Publication date: July 10, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Bo Pedersen, Kim Thomsen
  • Publication number: 20140169952
    Abstract: A direct driven wind turbine and a main bearing used in such a wind turbine is provided. A rotor of the wind turbine is directly connected with a rotating drive train of the wind turbine, the rotating drive train is directly connected with a rotor of an electrical generator of the wind turbine. The rotating drive train is connected with a stationary part of the wind turbine via at least one bearing, which allows the rotation of the drive train in relation to the stationary part. The at least one bearing is a plain bearing and the bearing is a tapered bearing, which comprises at least one conical shaped sliding surface.
    Type: Application
    Filed: August 10, 2012
    Publication date: June 19, 2014
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Bo Pedersen, Kim Thomsen
  • Publication number: 20140086516
    Abstract: A sliding bearing and a service method of performing a service of a sliding bearing are provided. The sliding bearing includes a first bearing shell and a second bearing shell and a plurality of bearing pads arranged between the first bearing shell and the second bearing shell. In addition, the bearing includes an opening in the first bearing shell, wherein the opening is arranged such that the bearing pads are visible through the opening.
    Type: Application
    Filed: July 25, 2013
    Publication date: March 27, 2014
    Inventors: Bo Pedersen, Kim Thomsen
  • Publication number: 20140086515
    Abstract: A sliding bearing of a wind turbine and a method to perform a service at a sliding bearing are proposed. The sliding bearing has a first bearing shell and a second bearing shell and a plurality of bearing pads arranged between the first bearing shell and the second bearing shell. The bearing pads are connected to the second bearing shell and the first bearing shell has a sliding surface that is prepared and arranged so that the bearing pads can slide along the sliding surface when the bearing shells are moved in respect to each other. A machining element is arranged between the first bearing shell and the second bearing shell to treat the sliding surface of the first bearing shell.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 27, 2014
    Inventors: Bo Pedersen, Kim Thomsen
  • Publication number: 20130287574
    Abstract: A wind turbine is provided. The wind turbine includes a stationary main shaft arranged within a nacelle of the wind turbine, a rotor hub including a hollow shell defining an interior and a plurality of rotor blades extending radially outwards from the rotor hub, wherein the rotor hub is rotatably mounted to the stationary main shaft via at least one bearing, wherein the at least one bearing is arranged within the interior of the rotor hub and connected to a section of the main shaft protruding into the interior of the rotor hub.
    Type: Application
    Filed: April 12, 2013
    Publication date: October 31, 2013
    Inventors: Henning Ebbesen, Bo Pedersen, Kim Thomsen
  • Publication number: 20130001511
    Abstract: The present invention relates to light emitting diodes comprising at least one nanowire. The LED according to the invention is an upstanding nanostructure with the nanowire protruding from a substrate. A bulb with a larger diameter than the nanowire is arranged in connection to the nanowire and at an elevated position with regards to the substrate. A pn-junction is formed by the combination of the bulb and the nanowire resulting in an active region to produce light.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 3, 2013
    Applicant: QuNano AB
    Inventors: Bo Pedersen, Lars Samuelson, Jonas Ohlsson, Patrik Svensson
  • Publication number: 20120270345
    Abstract: The present invention relates to light emitting diodes, LEDs. In particular the invention relates to a LED comprising a nanowire as an active component. The nanostructured LED according to the embodiments of the invention comprises a substrate and at an upstanding nanowire protruding from the substrate. A pn-junction giving an active region to produce light is present within the structure. The nanowire, or at least a part of the nanowire, forms a wave-guiding section directing at least a portion of the light produced in the active region in a direction given by the nanowire.
    Type: Application
    Filed: April 27, 2012
    Publication date: October 25, 2012
    Applicant: QuNano AB
    Inventors: Lars Ivar Samuelson, Bo Pedersen
  • Patent number: 8227817
    Abstract: The present invention relates to light emitting diodes comprising at least one nanowire. The LED according to the invention is an upstanding nanostructure with the nanowire protruding from a substrate. A bulb with a larger diameter than the nanowire is arranged in connection to the nanowire and at an elevated position with regards to the substrate. A pn-junction is formed by the combination of the bulb and the nanowire resulting in an active region to produce light.
    Type: Grant
    Filed: December 22, 2007
    Date of Patent: July 24, 2012
    Assignee: QuNano AB
    Inventors: Bo Pedersen, Lars Samuelson, Jonas Ohlsson, Patrik Svensson
  • Patent number: 8183587
    Abstract: The present invention relates to light emitting diodes, LEDs. In particular the invention relates to a LED comprising a nanowire as an active component. The nanostructured LED according to the embodiments of the invention comprises a substrate and at an upstanding nanowire protruding from the substrate. A pn-junction giving an active region to produce light is present within the structure. The nanowire, or at least a part of the nanowire, forms a wave-guiding section directing at least a portion of the light produced in the active region in a direction given by the nanowire.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: May 22, 2012
    Assignee: QuNano AB
    Inventors: Lars Ivar Samuelson, Bo Pedersen, Bjorn Jonas Ohlsson
  • Publication number: 20100283064
    Abstract: The present invention relates to nanostructured light emitting diodes, LEDs. The nanostructured LED device according to the invention comprises an array of a plurality of individual nanostructured LEDs. Each of the nanostructured LEDs has an active region wherein light is produced. The nanostructured device further comprise a plurality of reflectors, each associated to one individual nanostructured LED (or a group of nanostructured LEDs. The individual reflectors has a concave surface facing the active region of the respective individual nanostructured LED or active regions of group of nanostructured LEDs.
    Type: Application
    Filed: December 27, 2007
    Publication date: November 11, 2010
    Inventors: Lars Ivar Samuelson, Bo Pedersen, Bjorn Jonas Ohlsson, Yourii Martynov, Steven L. Konsek, Peter Jesper Hanberg
  • Publication number: 20100148149
    Abstract: The present invention relates to light emitting diodes comprising at least one nanowire. The LED according to the invention is an upstanding nanostructure with the nanowire protruding from a substrate. A bulb with a larger diameter than the nanowire is arranged in connection to the nanowire and at an elevated position with regards to the substrate. A pn-junction is formed by the combination of the bulb and the nanowire resulting in an active region to produce light.
    Type: Application
    Filed: December 22, 2007
    Publication date: June 17, 2010
    Inventors: Bo Pedersen, Lars Samuelson, Jonas Ohlsson, Patrik Svensson
  • Publication number: 20080149944
    Abstract: The present invention relates to light emitting diodes, LEDs. In particular the invention relates to a LED comprising a nanowire as an active component. The nanostructured LED according to the embodiments of the invention comprises a substrate and at an upstanding nanowire protruding from the substrate. A pn-junction giving an active region to produce light is present within the structure. The nanowire, or at least a part of the nanowire, forms a wave-guiding section directing at least a portion of the light produced in the active region in a direction given by the nanowire.
    Type: Application
    Filed: June 15, 2007
    Publication date: June 26, 2008
    Inventors: Lars Ivar Samuelson, Bo Pedersen
  • Patent number: 7209671
    Abstract: An optical signal receiver including a plurality of threshold decision circuits configured to receive an electrical signal representative of the optical signal. Each of the threshold decision circuits is configured to sample the electrical signal and to provide an associated threshold decision circuit output in response to a comparison of the signal to an associated threshold level. The threshold decision circuit outputs are coupled to an output decision circuit, which is configured to output a signal representative of a binary state of the optical signal. An optical communication system and a method of reconstructing received data signal in an optical communication system are also provided.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: April 24, 2007
    Assignee: Tyco Telecommunications (US) Inc.
    Inventors: M. Imran Hayee, Bo Pedersen, Alexei N. Pilipetskii, Gerald E. Lenner
  • Patent number: 7130542
    Abstract: An optical transmission system includes a number of corresponding modular multiplexing and demultiplexing units used in transmitting and receiving an optical signal respectively. Additionally, compensation components compensate for optical dispersion experienced by the optical signal. The modular multiplexing and demultiplexing units are assembled in a cascade fashion at the transmit side and the receive side of the optical transmission system, respectively. The dispersion compensation components share dispersion compensation fiber across the cascaded units.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: October 31, 2006
    Assignee: Corvis Corporation
    Inventors: Dalma Novak, Bo Pedersen, Quan-Zhen Wang
  • Patent number: 7120362
    Abstract: High power repeaters for use in amplifying optical data signals transmitted through undersea fiber optic cables are disclosed. Raman amplification schemes using 100 or more pump lasers are integrated into industry standard sized pressure vessels for amplifying optical data signals transmitted through one or more fiber optic pairs. Other repeater features include high density packaging, efficient power distribution, and component sharing.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: October 10, 2006
    Inventors: Bo Pedersen, Ronald E. Johnson
  • Patent number: 7085039
    Abstract: A hybrid Raman-EDFA provides gain equalization over the C-band and L-band. The hybrid Raman-EDFA includes a Raman section producing a Raman gain and an EDFA section producing an EDFA gain complementing the Raman gain. The EDFA section preferably includes a highly inverted, single-stage EDFA to produce the complementing EDFA gain shape. One embodiment of the EDFA section includes a high return loss termination located after the erbium fiber to receive unabsorbed pump power. Multiple hybrid Raman-EDFAs can be connected in an amplifier chain in a transmission system. The transmission system preferably provides a dispersion map including regular composite fiber spans followed by at least one compensating span of negative dispersion fibers. The Raman sections of the hybrid Raman-EDFAs are preferably coupled to negative dispersion fiber in the transmission system.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: August 1, 2006
    Assignee: Tyco Telecommunications (US) Inc.
    Inventors: Dmitri Foursa, Morten Nissov, Alexei N. Pilipetskii, Michael A. Mills, Chinlon Lin, Bo Pedersen
  • Patent number: 7032154
    Abstract: A method and apparatus for performing error correction is described. A stream of data is encoded using concatenated error correcting codes. The encoded data is communicated over a transmission system. The encoded data is decoded using the codes and three levels of decoding.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: April 18, 2006
    Assignee: Tyco Telecommunications (US) Inc.
    Inventors: Howard D. Kidorf, Franklin W. Kerfoot, III, Nandakumar Ramanujam, Bo Pedersen
  • Patent number: 7006500
    Abstract: Methods, apparatuses and systems facilitating the aggregation or bonding of communications paths into a higher-bandwidth, logical communications path. Embodiments of the present invention can be applied to bond different physical links (e.g., xDSL over twisted pairs), different channels on the same physical line, or even different channels or frequencies in a wireless communications network. The present invention further provides methods, apparatuses and systems facilitating the re-sequencing of data flows transmitted across bonded communications paths. In one embodiment, the re-sequencing methodology of the present invention adapts to the transmission delays (both absolute and relative) across the bonded communications path.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: February 28, 2006
    Assignee: Valo, Inc.
    Inventors: Soren Bo Pedersen, Radimir Shilshtut, Danny Thom, Sina Soltani, Manish Lohani