Patents by Inventor Fredrik Lundqvist

Fredrik Lundqvist 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: 20200094042
    Abstract: A garment worn by the patient is provided. The garment has a first module electrically connected to a second module. The first module has a first sub-control unit electrically connected to a first electrode and a second electrode placed at a first muscle of the patient and a third electrode and a fourth electrode placed at a second muscle. The sub-control unit is electrically connected to a master unit. The first muscle is stimulated with a first stimulation signal without shortening the first muscle by sending the first stimulation signal to the first electrode placed at the first muscle. The stimulation of the first muscle relaxes the second muscle. A measuring unit (U1) of the master unit determines a first current value flowing from the first electrode through the first muscle to the second electrode and sends the first current value to a central processing unit (CPU).
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Inventors: Lars Dernebo, Fredrik Lundqvist
  • Publication number: 20200078583
    Abstract: A garment worn by the patient is provided. The garment has a first module electrically connected to a second module. The first module has a first sub-control unit electrically connected to a first electrode and a second electrode placed at a first muscle of the patient and a third electrode and a fourth electrode placed at a second muscle. The sub-control unit is electrically connected to a master unit. The first muscle is stimulated with a first stimulation signal without shortening the first muscle by sending the first stimulation signal to the first electrode placed at the first muscle. The stimulation of the first muscle relaxes the second muscle. A measuring unit (U1) of the master unit determines a first current value flowing from the first electrode through the first muscle to the second electrode and sends the first current value to a central processing unit (CPU).
    Type: Application
    Filed: November 11, 2019
    Publication date: March 12, 2020
    Inventors: Lars Dernebo, Fredrik Lundqvist
  • Publication number: 20190209831
    Abstract: A garment worn by the patient is provided. The garment has a first module electrically connected to a second module. The first module has a first sub-control unit electrically connected to a first electrode and a second electrode placed at a first muscle of the patient and a third electrode and a fourth electrode placed at a second muscle. The sub-control unit is electrically connected to a master unit. The first muscle is stimulated with a first stimulation signal without shortening the first muscle by sending the first stimulation signal to the first electrode placed at the first muscle. The stimulation of the first muscle relaxes the second muscle. A measuring unit (U1) of the master unit determines a first current value flowing from the first electrode through the first muscle to the second electrode and sends the first current value to a central processing unit (CPU).
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Inventors: Lars Dernebo, Fredrik Lundqvist
  • Publication number: 20190161373
    Abstract: There is provided a method of treatment of sludge, such as municipal or industrial sludge from a wastewater treatment plant, comprising the steps of: —preheating an incoming sludge with at least one steam fraction, preferably by direct steam injection, to obtain a preheated sludge; —further heating the preheated sludge with a high-temperature steam fraction, preferably by direct steam injection, to obtain a heated sludge; —hydrothermal carbonization (HTC) of the heated sludge to obtain a HTC-treated sludge; —separating a particle-lean fraction from the HTC-treated sludge; —wet oxidation of the particle-lean fraction to obtain a heated particle-lean fraction; —subjecting the heated particle-lean fraction to a first flashing to obtain the high-temperature steam fraction used in the further heating step; —separating a particle-rich fraction from the HTC-treated sludge; —subjecting the particle-rich fraction to flashing to obtain at least one steam fraction that is used in the preheating step and a cooled particl
    Type: Application
    Filed: June 21, 2017
    Publication date: May 30, 2019
    Inventors: Fredrik Lundqvist, Erik Odén, Fredrik Öhman
  • Patent number: 10279164
    Abstract: A medical therapy arrangement, for applying electrical stimulation to a subject, includes a garment having electrodes at an inner surface. A control unit controls each electrode to work as one or more of anode, cathode or disconnected state, per a predetermined therapy stimulation program. Furthermore, the arrangement includes: at least one connection unit having a predetermined number of connection elements respectively electrically connected to the electrodes via separate connection lines being flexible and elastic and integrated into the garment; at least one connection board having a predetermined number of connection pads electrically connected to the control unit.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: May 7, 2019
    Assignee: Inerventions AB
    Inventors: Jonas Wistrand, Fredrik Lundqvist, Emma Sjoberg, Johan Gawell, Andreas Hallden
  • Publication number: 20180194657
    Abstract: There is provided a system for sludge treatment, which system is arranged in a container adapted to be transported by a truck and comprises: a sludge inlet for receiving a sludge; a reactor comprising an electrical heating arrangement for heat treatment of the sludge, which reactor is arranged downstream the sludge inlet; a flashing arrangement for cooling sludge treated in the reactor and providing at least one steam fraction, which flashing arrangement is arranged downstream the reactor; a steam routing arrangement capable of routing the at least one steam fraction from the flashing arrangement to preheat sludge transported from the sludge inlet to the reactor; and a separation arrangement for separating the cooled sludge from the flashing arrangement into a first fraction and a second fraction, wherein the suspended solids content is higher in the first fraction than in the second fraction. A corresponding method is also provided.
    Type: Application
    Filed: June 28, 2016
    Publication date: July 12, 2018
    Inventors: Fredrik Ohman, Fredrik Lundqvist, Erik Oden
  • Patent number: 9905377
    Abstract: The invention relates to a circuit breaker comprising a first and a second contact assembly, wherein one of the contact assemblies comprises contact fingers arranged in a finger cage configuration and the other contact assembly comprises a tube or rod contact. The contact fingers comprise an impact point where the tube or rod impacts the contact fingers for the first time during electrical connection establishment, and a contact zone which contacts the tube or rod when the electrical connection is established. The contact zone comprises two contact points separated from one another and arranged on a line which is perpendicular to the longitudinal axis.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: February 27, 2018
    Assignee: ABB Schweiz AG
    Inventors: Francesco Pisu, Fredrik Lundqvist, Jakub Korbel, Johan Costyson, Kansara Krunal, Mattias Runnberg, Sami Kotilainen, Raphael Rijo-Rude
  • Patent number: 9794841
    Abstract: A first network node provides a neighboring cell list for a first cell in a wireless telecommunications network. The first cell is served by a second network node. The first network node includes a collecting unit that collects information about a number of bursts of events and/or a number of radio link addition attempts for user equipments located in the first cell to cell(s) other than the first cell. The first network node includes a determining unit that determines a neighboring cell list for the first cell based on addition and/or removal threshold(s) related to the number of bursts of events and/or number of radio link addition attempts for user equipments located in the first cell to one or more cells other than the first cell. The first network node includes a providing unit that provides the determined neighboring cell list for the first cell to the second network node.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: October 17, 2017
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: Fredrik Lundqvist
  • Publication number: 20160329164
    Abstract: The invention relates to a circuit breaker comprising a first and a second contact assembly, wherein one of the contact assemblies comprises contact fingers arranged in a finger cage configuration and the other contact assembly comprises a tube or rod contact. The contact fingers comprise an impact point where the tube or rod, impacts the contact fingers for the first time during electrical connection establishment, and a contact zone which contacts the tube or rod when the electrical connection is established. The contact zone comprises two contact points separated from one another and arranged on a line which is perpendicular to the longitudinal axis.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 10, 2016
    Inventors: Francesco Pisu, Fredrik Lundqvist, Jakub Korbel, Johan Costyson, Kansara Krunal, Mattias Runnberg, Sami Kotilainen
  • Publication number: 20150257064
    Abstract: A first network node provides a neighboring cell list for a first cell in a wireless telecommunications network. The first cell is served by a second network node. The first network node includes a collecting unit that collects information about a number of bursts of events and/or a number of radio link addition attempts for user equipments located in the first cell to cell(s) other than the first cell. The first network node includes a determining unit that determines a neighboring cell list for the first cell based on addition and/or removal threshold(s) related to the number of bursts of events and/or number of radio link addition attempts for user equipments located in the first cell to one or more cells other than the first cell. The first network node includes a providing unit that provides the determined neighboring cell list for the first cell to the second network node.
    Type: Application
    Filed: September 12, 2012
    Publication date: September 10, 2015
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Fredrik Lundqvist
  • Publication number: 20150174391
    Abstract: A medical therapy arrangement, for applying electrical stimulation to a subject, includes a garment having electrodes at an inner surface. A control unit controls each electrode to work as one or more of anode, cathode or disconnected state, per a predetermined therapy stimulation program. Furthermore, the arrangement includes: at least one connection unit having a predetermined number of connection elements respectively electrically connected to the electrodes via separate connection lines being flexible and elastic and integrated into the garment; at least one connection board having a predetermined number of connection pads electrically connected to the control unit.
    Type: Application
    Filed: June 17, 2013
    Publication date: June 25, 2015
    Applicant: INERVENTIONS AB
    Inventors: Jonas Wistrand, Fredrik Lundqvist, Emma Sjoberg, Johan Gawell, Andreas Hallden
  • Publication number: 20120245483
    Abstract: The present invention relates generally to muscle relaxation. Muscle relaxation is desired in many disease states, including spastic paresis and biomechanical and neuromuscular dysfunction. More specifically, the invention relates to a system that causes muscle relaxation by reducing muscular spasticity through the stimulation of joints and muscles. The system consists of a garment with electrodes, a hardware unit and software controlling the stimulation.
    Type: Application
    Filed: December 2, 2010
    Publication date: September 27, 2012
    Applicant: INERVENTIONS AB
    Inventor: Fredrik Lundqvist
  • Publication number: 20090099354
    Abstract: The present invention provides a method for extracting polymeric pentose, preferably xylan, from a polymeric pentose containing liquid/slurry, preferably black liquor, comprising the following steps: a) providing a polymeric pentose containing liquid/slurry; b) concentrating the polymeric pentose by membrane separation of a said polymeric pentose containing liquid/slurry; and c) adding alcohol to the concentrate obtained in step b) and subsequently acidifying said concentrate obtained in step b) for precipitating polymeric pentose whereby a polymeric pentose product, or an intermediate polymeric pentose product, is obtained. In this above way polymeric pentose, e.g. xylan, is separated whereby the use of methanol (less lignin must be kept in solution) and acid (less acid which buffers the pH-decrease) become much lower.
    Type: Application
    Filed: February 2, 2007
    Publication date: April 16, 2009
    Applicant: STFI-PACKFORSK AB
    Inventors: Peter Axegard, Karin Lindgren, Olof Dahlman, Per Tomani, Fredrik Lundqvist
  • Patent number: 6487295
    Abstract: A signal filter includes a first adaptive filter receiving a desired signal containing a noise component and a first noise correlated reference signal, and outputting a first filtered output signal. A second adaptive filter, receives the desired signal containing the noise component and a second noise correlated reference signal and outputs a second filtered output signal. Signal filter parameters of the second adaptive filter are controlled based on the first filtered output signal and the second filtered output signal.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: November 26, 2002
    Assignee: Ortivus AB
    Inventors: Nils Lofgren, Per Karlsson, Gunilla Lundahl, Fredrik Lundqvist
  • Patent number: 5546435
    Abstract: The invention relates to an arrangement for carrying out leak detection of a fuel assembly for a pressurized-water nuclear reactor. A substantially vertical hollow mast means open in both ends houses the fuel assembly to be examined. The fuel assembly is drawn to the inside of the mast means from its lower side. The part of the mast means housing the fuel assembly is lifted to a position in which the fuel assembly is provided near but below the water surface of water inside the nuclear reactor. Water is sucked from a position inside the mast means above the fuel assembly. A gas separating means separates gases present in water sucked from the inside of the mast means. The separated gas is analyzed in a gas analyzing means regarding its amount of gaseous fission products.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: August 13, 1996
    Assignee: ABB Atom AB
    Inventors: Per Collin, Roland Deleryd, Roland Ivars, Fredrik Lundqvist, Norman R. Stolzenberg