Patents by Inventor Per Karlsson

Per Karlsson 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: 9851190
    Abstract: An arrangement for locking arming conditions to prevent unintentional arming of SAI-units of ammunition units when the ammunition unit is subjected to external threats. A ring shaped shape memory alloy is provided in cooperation with a recess in a plunger arranged in connection to the SAI-unit and a fixed recess to prevent the plunger from axial movement when subjected to heating by changing the shape of the essentially ring shaped shape memory alloy to lock the plunger relative to the fixed recess.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: December 26, 2017
    Assignee: SAAB AB
    Inventors: Bengt Andersson, Per Karlsson, Filip Strand
  • Publication number: 20170274582
    Abstract: Disclosed embodiments relate to an induction sealing device for heat sealing packaging material for producing sealed packages of pourable food products. In some embodiments, the sealing device includes: an inductor device which interacts with said packaging material by means of at least one active surface; a flux-concentrating insert; and a supporting body made of heat-conducting material and housing said inductor device and said flux-concentrating insert, wherein said flux concentrating insert is made by a magnetic compound of a polymer and soft magnetic particles; and said flux concentrating insert interacts with said packaging material via at least one interactive surface.
    Type: Application
    Filed: November 18, 2015
    Publication date: September 28, 2017
    Inventors: Per KARLSSON, Marko STAJKOVIC, Louis CARLIOZ, Håkan ANDERSSON, Patrik INGVARSSON
  • Publication number: 20170228922
    Abstract: In a system for moving and scaling in a virtual reality environment, a user may a move from a first virtual position in the virtual environment toward a selected feature at a second virtual position in the virtual environment. While moving from the first position toward the second position, a user's scale, or perspective, relative to the user's surroundings in the virtual environment, may be adjusted via manipulation of a user interface provided on a handheld electronic device.
    Type: Application
    Filed: November 15, 2016
    Publication date: August 10, 2017
    Inventors: Dominik Philemon KAESER, Adam GLAZIER, Evan Hardesty PARKER, Matthew SEEGMILLER, Per KARLSSON, Aleksandr PALATNIK
  • Publication number: 20170152992
    Abstract: A lubrication control system for intermittent dosing of lubricant to one or more lubrication stations in a centrifugal separator includes a lubricant supply arrangement for supplying lubricant to at least one lubrication station. At least one pump is supplying intermittent pulsed volumes of lubricant from the lubricant supply arrangement to at least one lubricant pulse monitoring device including an elastic chamber to receive said pulsed volumes of lubricant from the pump, an outlet export valve at an outlet from the elastic chamber closing when a pulsed volume is delivered to the elastic chamber and opening to deliver the lubricant to the lubrication station, and a pressure transmitter measuring the pressure in said elastic chamber at least when a pulsed volume is received in the elastic chamber.
    Type: Application
    Filed: April 10, 2015
    Publication date: June 1, 2017
    Applicant: ALFA LAVAL CORPORATE AB
    Inventor: Per KARLSSON
  • Patent number: 9628760
    Abstract: Device, computer program and method for providing video content and data to a user device (50). The method includes providing the video content to the user device (50), sending a first message from a network operator system (40) to the user device (50), the first message including at least one of an instruction for downloading the data or a table (102) storing information about the data, wherein each of the instruction and the information about the data informs the user device (50) to search a peer-to-peer network (70) for the data, and receiving at the network operator system (40) a second message from the user device (50) indicating that the data has been downloaded from the peer-to-peer network (70).
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: April 18, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Ayodele Damola, Apostolos Georgakis, Per Karlsson
  • Publication number: 20170023344
    Abstract: An arrangement for locking arming conditions to prevent unintentional arming of SAI-units of ammunition units when the ammunition unit is subjected to external threats. A ring shaped shape memory alloy is provided in cooperation with a recess in a plunger arranged in connection to the SAI-unit and a fixed recess to prevent the plunger from axial movement when subjected to heating by changing the shape of the essentially ring shaped shape memory alloy to lock the plunger relative to the fixed recess.
    Type: Application
    Filed: April 11, 2014
    Publication date: January 26, 2017
    Inventors: Bengt Andersson, Per Karlsson, Filip Strand
  • Publication number: 20160377400
    Abstract: A container for packaging and storing ammunition units in tubes. A unit cargo includes such containers. A method for packaging and storing such containers. T-shaped detonation protections are introduced to separate adjacent tubes in order to prevent mass detonation.
    Type: Application
    Filed: December 4, 2013
    Publication date: December 29, 2016
    Applicant: SAAB AB
    Inventors: Per KARLSSON, Thomas WIDLUND, Magnus RÅDMAN
  • Patent number: 9427747
    Abstract: A centrifugal separator comprises a frame, a spindle and centrifuge rotor on the spindle. The centrifuge rotor comprises a rotor casing, which forms an inner separation space, an inlet for supply of a fluid and an outlet for discharge of a separated component. An electrical drive motor having a stator and a rotor drives the spindle and the centrifuge rotor. The rotor of the drive motor is supported by a first bearing and second bearing. A coupling member connects the rotor of the drive motor and the spindle for transmitting a rotary movement. A third bearing supports the spindle so that it is radially elastic in relation to the frame for transmitting a first part of radial forces between the spindle and the frame. The coupling member comprises a lamella coupling or a universal coupling, and transmits a second part of the radial forces, which exists between the spindle and the frame, to the frame via the rotor of the drive motor and at least one of the first and the second bearing.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: August 30, 2016
    Assignee: Alfa Laval Corporate AB
    Inventor: Per Karlsson
  • Patent number: 9270748
    Abstract: The present invention comprises a content delivery system for delivering content to clients. The content delivery system comprises at least one mobile object adapted to be executed on the content delivery system and on other content delivery systems or multimedia devices adapted for mobile objects. Each mobile object comprises a media file and is further adapted to determine the capabilities of the other content delivery systems or multimedia devices and to monitor data related to the clients' access of the media file. The content delivery system also comprises a transcoder unit for transcoding the media file to another media file prior sending it to the other content delivery system or multimedia device. The invention solves problems that can arise when sending large media files to content delivery systems or multimedia devices having limited capabilities.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: February 23, 2016
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Per Karlsson, Victor Souza
  • Publication number: 20140317220
    Abstract: The invention relates to a hybrid network device comprising a server interface enabling access to a server system memory, a network switch comprising a packet processing engine configured to process packets routed through the switch and a switch packet buffer configured to queue packets before transmission, at least one network interface; and at least one a bus mastering DMA controller configured to access the data of said server system memory via said at least one server interface and transfer said data to and from said hybrid network device. According to one aspect of the invention, a bus transfer arbiter configured to control the data transfer from the server memory to the packet processing engine of said hybrid network device.
    Type: Application
    Filed: November 1, 2012
    Publication date: October 23, 2014
    Inventors: Per Karlsson, Lars Viklund, Benny Andersson, Patrik Sundström, Kenny Ranerup, Robert Wikander, Daniel Ågren
  • Patent number: 8702576
    Abstract: Device for monitoring and adjusting, in particular for fixing and securing, the radial position of an interface layer in a nozzle centrifuge for separating a light phase having a relatively low density and a heavy phase having a relatively high density from a mixture containing these two liquids and a solid, the nozzle centrifuge including a rotor 1-3 which is rotatable around a rotational axis R and which forms an inlet 9 for said mixture, a separating chamber 7 communicating with said inlet 9 and having a radially inner part 7a and a radially outer part 7b, nozzles 12 at the separating chamber distributed around the rotational axis R for throwing out the heavy phase and the solid, an outlet 13a, 13b, 14 for discharging the light phase, an overflow outlet 19 being radially delimited by a cover or level ring 20 for discharging the heavy phase, and an inlet 9; 25, 26 for supplying additional heavy phase to the centrifuge, characterized in that a sensor 24 is arranged in the flow path of the heavy phase 23 leav
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Alfa Laval Corporate AB
    Inventor: Per Karlsson
  • Publication number: 20130065744
    Abstract: Device for monitoring and adjusting, in particular for fixing and securing, the radial position of an interface layer in a nozzle centrifuge for separating a light phase having a relatively low density and a heavy phase having a relatively high density from a mixture containing these two liquids and a solid, the nozzle centrifuge including a rotor 1-3 which is rotatable around a rotational axis R and which forms an inlet 9 for said mixture, a separating chamber 7 communicating with said inlet 9 and having a radially inner part 7a and a radially outer part 7b, nozzles 12 at the separating chamber distributed around the rotational axis R for throwing out the heavy phase and the solid, an outlet 13a, 13b, 14 for discharging the light phase, an overflow outlet 19 being radially delimited by a cover or level ring 20 for discharging the heavy phase, and an inlet 9; 25, 26 for supplying additional heavy phase to the centrifuge, characterized in that a sensor 24 is arranged in the flow path of the heavy phase 23 leav
    Type: Application
    Filed: March 16, 2011
    Publication date: March 14, 2013
    Inventor: Per Karlsson
  • Publication number: 20110295981
    Abstract: Device, computer program and method for providing video content and data to a user device (50). The method includes providing the video content to the user device (50), sending a first message from a network operator system (40) to the user device (50), the first message including at least one of an instruction for downloading the data or a table (102) storing information about the data, wherein each of the instruction and the information about the data informs the user device (50) to search a peer-to-peer network (70) for the data, and receiving at the network operator system (40) a second message from the user device (50) indicating that the data has been downloaded from the peer-to-peer network (70).
    Type: Application
    Filed: February 24, 2009
    Publication date: December 1, 2011
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Ayodele Damola, Apostolos Georgakis, Per Karlsson
  • Publication number: 20110252115
    Abstract: The present invention comprises a content delivery system for delivering content to clients. The content delivery system comprises at least one mobile object adapted to be executed on the content delivery system and on other content delivery systems or multimedia devices adapted for mobile objects. Each mobile object comprises a media file and is further adapted to determine the capabilities of the other content delivery systems or multimedia devices and to monitor data related to the clients' access of the media file. The content delivery system also comprises a transcoder unit for transcoding the media file to another media file prior sending it to the other content delivery system or multimedia device. The invention solves problems that can arise when sending large media files to content delivery systems or multimedia devices having limited capabilities.
    Type: Application
    Filed: December 18, 2008
    Publication date: October 13, 2011
    Inventors: Per Karlsson, Victor Souza
  • Publication number: 20110124481
    Abstract: A centrifugal separator comprises a frame, a spindle and centrifuge rotor on the spindle. The centrifuge rotor comprises a rotor casing, which forms an inner separation space, an inlet for supply of a fluid and an outlet for discharge of a separated component. An electrical drive motor having a stator and a rotor drives the spindle and the centrifuge rotor. The rotor of the drive motor is supported by a first bearing and second bearing. A coupling member connects the rotor of the drive motor and the spindle for transmitting a rotary movement. A third bearing supports the spindle so that it is radially elastic in relation to the frame for transmitting a first part of radial forces between the spindle and the frame. The coupling member comprises a lamella coupling or a universal coupling, and transmits a second part of the radial forces, which exists between the spindle and the frame, to the frame via the rotor of the drive motor and at least one of the first and the second bearing.
    Type: Application
    Filed: May 11, 2009
    Publication date: May 26, 2011
    Applicant: Alfa Laval Corporate AB
    Inventor: Per Karlsson
  • Patent number: 7551122
    Abstract: A method for determination of a filling level of a product contained in a tank, comprising the steps of generating and transmitting an electromagnetic signal; propagating the transmitted electromagnetic signal towards the product in the tank; receiving echo signals resulting from reflections at impedance transitions encountered by the transmitted electromagnetic signal; classifying one of the echo signals as a surface echo signal resulting from reflection at a surface of the product inside the tank; evaluating an additional echo signal; providing, if an amplitude of the additional echo signal is greater than a predetermined disturbance echo threshold, a signal indicative thereof; and determining the filling level based on the surface echo signal.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: June 23, 2009
    Assignee: Rosemount Tank Radar AB
    Inventors: Håkan Delin, Per Karlsson
  • Publication number: 20090146867
    Abstract: A method for determination of a filling level of a product contained in a tank, comprising the steps of generating and transmitting an electromagnetic signal; propagating the transmitted electromagnetic signal towards the product in the tank; receiving echo signals resulting from reflections at impedance transitions encountered by the transmitted electromagnetic signal; classifying one of the echo signals as a surface echo signal resulting from reflection at a surface of the product inside the tank; evaluating an additional echo signal; providing, if an amplitude of the additional echo signal is greater than a predetermined disturbance echo threshold, a signal indicative thereof; and determining the filling level based on the surface echo signal.
    Type: Application
    Filed: December 6, 2007
    Publication date: June 11, 2009
    Inventors: Hakan Delin, Per Karlsson
  • Publication number: 20080041010
    Abstract: A construction board with an integrated fastening means for mounting the construction board (1) on a construction material (17), such as a stud of wood or metal. The fastening means has a cage (2) arranged into the construction board (1) and a screw arranged into the cage (2). The screw is telescopic and has two parts (3, 4) with the same pitch of the threads. The screw might occupy two positions, one is a dismounted position, into which the first part (4) is telescopically received into the second part (3) when the screw is not extended, and the other position is a mounted position when the screw is extended.
    Type: Application
    Filed: December 29, 2003
    Publication date: February 21, 2008
    Inventor: Per Karlsson
  • Patent number: 6700065
    Abstract: An EMI-tight strain relief for a cable having a tubular crimp sleeve which is crimped onto the end of the cable and which includes structure for securing the strain relief in an opening in the wall of an apparatus housing. The sleeve has a crimpable portion including a circumferential groove for equalizing the necessary crimping force.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: March 2, 2004
    Inventor: Per Karlsson
  • Patent number: 6573452
    Abstract: A tool for crimping a tubular crimp sleeve onto the end of a cable. The tool includes a frame structure, having two mutually opposing frame legs, which receives a crimping insert for a selected sleeve size. The insert includes two blocks that are brought together by means of a screw which, with the aid of a lever, is screwed through one of the frame legs so as to press the insert blocks together. A spring element strives to separate the two insert blocks, and at least one of the frame legs includes a recess for receiving the end of a corresponding one of the insert blocks.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: June 3, 2003
    Inventor: Per Karlsson