Patents by Inventor Erik Bjørklund

Erik Bjørklund 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: 20230349304
    Abstract: An alignment tool includes a mounting flange, a support leg fixedly coupled to the mounting flange and cooperating with the mounting flange to define a partial annular ring that extends in an arc between 190 degrees and 350 degrees, and a second quantity of jack bolt pairs movably coupled to the support leg, each jack bolt pair arranged to engage one of the first quantity of seal segments. A third quantity of mounting fasteners is positioned to fixedly attach the mounting flange to the inner casing.
    Type: Application
    Filed: August 19, 2021
    Publication date: November 2, 2023
    Inventors: Dennis Eek, Daniel Silfver, Erik Björklund, Thomas Widgren, Mikael Frejd, Johan Nilsson
  • Patent number: 11566675
    Abstract: A graphite material device (1), wherein the graphite material device is provided, internally and/or externally, with at least one conductive pattern (2) and/or at least one sensor (2) and wherein the graphite material device is used as any one of a carbon brush, a brake disc, a bushing and a bearing.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: January 31, 2023
    Assignee: AB Dynamoborstfabriken
    Inventor: Erik Björklund
  • Patent number: 11177716
    Abstract: A brush holder for electrical machines has a clamping piece with a first mounting part and a second clamping part, which when assembled define a clamping hole to be assembled around a spindle; and two brush holder arms pivotally mounted on the first mounting part of said clamping piece, and adapted to receive and retain a brush. The arms have an upper side which is opposite to a lower side facing a slip ring; at least one biasing spring to act upon said brush holder arms in such a way that said brush holder arms move pivotally towards and presses said brushes against the slip ring. A conductive wire connects the brush to the clamping piece. A brush holder arm locking mechanism is adapted to be inserted into a slot in the second clamping part. A brush locking pin retains the brush in said brush holder arm and provided in corresponding bores arranged in the brush holder arm and the brush.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 16, 2021
    Assignee: AB DYNAMOBORSTFABRIKEN
    Inventors: Magnus Rehn, Erik Björklund
  • Publication number: 20210115991
    Abstract: A graphite material device (1), wherein the graphite material device is provided, internally and/or externally, with at least one conductive pattern (2) and/or at least one sensor (2) and wherein the graphite material device is used as any one of a carbon brush, a brake disc, a bushing and a bearing.
    Type: Application
    Filed: March 15, 2019
    Publication date: April 22, 2021
    Inventor: Erik Björklund
  • Publication number: 20200313497
    Abstract: The present inventive concept relates to a brush holder for electrical machines comprising a clamping piece comprising a first mounting part and a second clamping part, which when assembled define a clamping hole, which is adapted to be assembled around a spindle; and two brush holder arms, wherein a proximal end of said arm is pivotally mounted on the first mounting part of said clamping piece, and wherein a distal end of said arm is adapted to receive and retain a brush, and wherein said arms have an upper side which is opposite to a lower side facing a slip ring; at least one biasing spring which spring is adapted to act upon said brush holder arms in such a way that said brush holder arms move pivotally towards a slip ring, and when in use presses said brushes against the slip ring; at least one conductive wire connecting the brush to the clamping piece; and wherein a brush holder arm locking mechanism is arranged at or along the upper side of each respective brush holder arm, that said locking mechanism
    Type: Application
    Filed: November 28, 2018
    Publication date: October 1, 2020
    Inventors: Magnus Rehn, Erik Björklund
  • Patent number: 9973004
    Abstract: An arrangement for changing current return path in a bipole direct current power transmission system includes a converter station having an active and a passive converter connected in series between an active and a passive pole line via a first neutral bus, a metallic return transfer switch in an electrode line, a ground return transfer switch in a current redirecting path between the passive pole line and the neutral bus and a control unit which in case of change to the passive pole line for providing a return current path is configured to, upon control of power related to the active converter from steady-state to zero, close the ground return transfer switch and thereafter open the metallic return transfer switch, whereupon power related to the active converter may be controlled back to steady state.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: May 15, 2018
    Assignee: ABB SCHWEIZ AG
    Inventors: Tommy Holmgren, David Shearer, Felipe Sobrinho, Hector-Armando Avila, Per-Erik Björklund, Sören Nyberg
  • Publication number: 20180109109
    Abstract: An arrangement for changing current return path in a bipole direct current power transmission system includes a converter station having an active and a passive converter connected in series between an active and a passive pole line via a first neutral bus, a metallic return transfer switch in an electrode line, a ground return transfer switch in a current redirecting path between the passive pole line and the neutral bus and a control unit which in case of change to the passive pole line for providing a return current path is configured to, upon control of power related to the active converter from steady-state to zero, close the ground return transfer switch and thereafter open the metallic return transfer switch, whereupon power related to the active converter may be controlled back to steady state.
    Type: Application
    Filed: May 18, 2015
    Publication date: April 19, 2018
    Applicant: ABB Schweiz AG
    Inventors: Tommy HOLMGREN, David SHEARER, Felipe SOBRINHO, Hector-Armando AVILA, Per-Erik BJÖRKLUND, Sören NYBERG
  • Patent number: 8414777
    Abstract: A coalescing apparatus including a casing having an inner chamber for accommodating insulating fluid. At least one tube of electrically insulating material extends through the casing and the chamber. Each tube forms a flow channel for emulsion to be treated. A set of electrodes is mounted in the chamber. The tube is allotted at least one pair of electrodes of the set. A voltage set is configured to apply mutually different electric potentials to the electrodes of each electrode pair so as to form an electric field between them and thereby an electric field inside the respective tube. A heater is configured to heat the insulating fluid so as to allow the insulating fluid to transfer heat to emulsion flowing through at least one tube and thereby raise the temperature of the emulsion. An emulsion treatment system includes a coalescing apparatus. A coalescing method.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: April 9, 2013
    Assignee: Hamworthy PLC
    Inventors: Erik Bjørklund, Pål J Nilsen
  • Patent number: 8082933
    Abstract: A vessel having an implement located in a fluid receiving space inside the vessel. The vessel includes an enclosure for enclosing a closed space around the implement. An actuator actuates the enclosure to and fro between an open position, in which the enclosure does not enclose a closed space around the implement, and a closed position, in which the enclosure forms a fluid tight or at least essentially fluid tight casing that encloses a closed space around the implement so as to prevent fluid in the fluid receiving space outside the closed space from flowing into the closed space. A method for cleaning and/or calibrating an implement located in a fluid receiving space inside such a vessel and a method for removing an implement from or inserting an implement into a fluid receiving space inside a vessel.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: December 27, 2011
    Assignee: Hamworthy PLC
    Inventors: Peder Hansson, Erik Bjørklund