Patents by Inventor Per Andersson

Per Andersson 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: 20140083096
    Abstract: A method of controlling turbine efficiency in a turbo unit provided on an internal combustion engine includes providing a flow of gas in an area upstream a turbine at a direction different to the flow of exhaust gases in the same area, regulating the flow by a valve, and controlling the valve from a control unit having at least boost pressure and/or EGR flow as input parameters.
    Type: Application
    Filed: December 2, 2013
    Publication date: March 27, 2014
    Applicant: VOLVO LASTVAGNAR AB
    Inventors: Per ANDERSSON, Martin BAUER
  • Patent number: 8615999
    Abstract: A twin turbo assembly is provided for an automotive vehicle that includes a first and second air intake for, a first and second turbo charger that includes, but is not limited to a first and second compressor connected to the first air intake, a first and second intake duct connecting the first turbo charger to a combustion engine. A first and second bypass valve is provided to connect the first and second air intake, respectively to the first and second intake duct bypassing the first and second compressor. Overpressure inside the intake ducts can be discharged to a volume between the air filter and the respective compressor. The released pressure prevents or at least reduces the risk that compressed air inside the intake ducts may flow against the first compressor and the second compressor, so that the noise emission associated with this backflow is reduced or even prevented.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: December 31, 2013
    Assignee: GM Global Technology Operations LLC
    Inventor: Per Andersson
  • Patent number: 8573181
    Abstract: A throttle control system includes a pressure comparison module and a throttle plate control module. The pressure comparison module determines an inlet pressure upstream from a throttle body and an outlet pressure downstream from the throttle body. The throttle plate control module controls a position of a throttle plate based on the inlet pressure and the outlet pressure.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: November 5, 2013
    Inventors: Michael Arnett, Christopher E. Whitney, Per Andersson, Justin A. Zaydel
  • Patent number: 8475435
    Abstract: A partial-length catheter, or an extendable tube or sleeve member of the catheter, is selectively movable within the prostatic urethra to open a urine drainage passageway through and obstructed portion of the prostatic urethra or to open the external urinary sphincter muscle and thereby discharge urine from the bladder. A control element is manipulated at a position exterior of the urinary canal to selectively move the catheter or the extendable tube or sleeve member, thereby selectively controlling urine discharge.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: July 2, 2013
    Assignee: ProstaLund AB
    Inventors: Magnus Bolmsjö, Sonny Schelin, Per Andersson, Stephan Dymling
  • Patent number: 8424305
    Abstract: A turbocharger unit (18) for an internal combustion engine (10) with at least one exhaust line (15, 16) for conducting exhaust gases away from the combustion chamber (11) of the engine and at least one inlet line (12) for supplying air to the combustion chamber. The turbocharger unit includes a turbine (17) which interacts with a compressor (19) for extracting energy from the exhaust gas flow of the engine and pressurizing the inlet air of the engine. The compressor (19) is of radial type and provided with an impeller with backswept blades (35) where the blade angle (?b2) between an imaginary extension of the center line of the blade between root section and tip section in the direction of the outlet tangent and a line (36) which connects the center axis of the impeller to the outer tip of the blade is at least roughly 45°. The turbine (17) which drives the compressor (19) is of radial type.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: April 23, 2013
    Assignee: Volvo Lastvagnar AB
    Inventors: Lars Sundin, Magnus Ising, Sebastian Krausche, Per Andersson
  • Patent number: 8372357
    Abstract: A rotatable microfluidic device that comprises a hydrophilic microchannel structure in which there is a) an upstream microcavity I with a liquid outlet I, b) a microconduit I connected to liquid outlet I, and c) a capillary valve I associated with microconduit I. The inlet end of the microconduit is closer to the spin axis than the outlet end of the microconduit. The difference in radial distance between the inlet end and the outlet end of microconduit I is typically ?5%, such as ?10% or ?100% or ?500%, of the difference in radial distance between the uppermost part of the upstream microcavity and liquid outlet I.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: February 12, 2013
    Assignee: Gyros Patent AB
    Inventors: Per Andersson, Gunnar Ekstrand, Gérald Jesson
  • Publication number: 20130031255
    Abstract: A method of reserving lookup keys in a computer communication system including a hierarchy of key manager nodes includes receiving a first reservation request at a first key manager node at a first level of the hierarchy of key manager nodes. The first reservation request requests reservation of a lookup key. The methods include determining whether or not the first key manager node has authority to grant the reservation request, and, in response to determining that the first key manager node does not have authority to grant the reservation request, sending a second reservation request requesting reservation of the lookup key to a second key manager node that is at a second level of the hierarchy of key manager nodes.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jon Maloy, Per Andersson, Jonathan Lynam
  • Publication number: 20120331160
    Abstract: A method of providing multi-path proxy services includes receiving a first transmission control protocol/internet protocol (TCP/IP) connection request from a client device at a proxy server, the connection request specifying that the client device is capable of establishing a multi-path TCP/IP connection, establishing a single path TCP/IP connection from the proxy server to a serving node in response to receiving the connection request, establishing first and second TCP/IP connections between the proxy server and the client device as multi-path TCP/IP sub-flows between the proxy server and the client device, and proxying communications between the client device and the serving node over the first and second TCP/IP connections as multipath TCP/IP sub-flows between the client device and the proxy server and the single path TCP/IP connection between the proxy server and the serving node.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 27, 2012
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Richard Tremblay, Per Andersson
  • Publication number: 20120323989
    Abstract: Methods of distributing a selection algorithm that selects a target server component from among a plurality of server components having a same functionality type include receiving notifications from the plurality of server components indicating addresses at which the plurality of server components can be contacted, receiving a selection algorithm that is to be used by a client component for selecting the target server component from among the plurality of server components, and associating the selection algorithm with the functionality type. The methods may further include receiving a message from the client component requesting addresses of server components having the functionality type, sending the addresses of the plurality of server components to the client component, and sending the selection algorithm to the client component.
    Type: Application
    Filed: March 23, 2011
    Publication date: December 20, 2012
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Jon MALOY, Per ANDERSSON
  • Publication number: 20120311118
    Abstract: Systems/methods of looking up an address of a target server include receiving a first lookup request at a first lookup server that manages a first database that contains data relating to a first plurality of servers. First metadata relating to the target server is retrieved from the first database, and a second lookup request including the first metadata is sent to a second lookup server that manages a second database that contains data relating to a second plurality of servers. The second plurality of servers is a subset of the first plurality of servers and includes the target server. Second metadata relating to the target server is retrieved from the second database, and a response based on the first and second metadata is transmitted to the client. Corresponding systems/methods of binding a server address to a lookup key are also disclosed.
    Type: Application
    Filed: June 3, 2011
    Publication date: December 6, 2012
    Inventors: Jon Maloy, Per Andersson, Jonathan Lynman
  • Patent number: 8322136
    Abstract: A method is provided for operating a turbo charger of a combustion engine that includes, but is not limited to providing a set of values of a basic boost pressure for opening a waste gate for the turbo charger at a standard Temperature and at a standard pressure and measuring an ambient air temperature and an ambient air pressure. The method also includes, but is not limited to calculating a density of ambient air based on a mathematical formula using the measured ambient air temperature and the measured ambient air pressure and transforming at least one point of the provided set of values of the basic boost pressure at standard conditions into at least one point of an estimated set of values of the basic boost pressure at ambient conditions by a correction factor based on the calculated density, and controlling the turbo charger with least one corrected value of the basic boost pressure.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: December 4, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Per Andersson, Erik Jansson
  • Patent number: 8268262
    Abstract: A microfluidic device that comprises several microchannel structures in which there are an inlet port, an outlet port and there between a structural unit comprising a fluidic function. The structural unit can be selected amongst units enabling a) retaining of nl-aliquots comprising constituents which has been defined by mixing of aliquots within the microfluidic device (unit A), b) mixing of aliquots of liquids (unit B), c) partition of larger aliquots of liquids into smaller aliquots of liquids and distributing the latter individually and in parallel to different microchannel structure of the same microfluidic device (unit C), d) quick penetration into a microchannel structure of an aliquot of a liquid dispensed to an inlet port of a microchannel structure (unit D), and e) volume definition integrated within a microchannel structure (unit E).
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: September 18, 2012
    Assignee: Gyros Patent AB
    Inventors: Per Andersson, Gunnar Thorsen
  • Patent number: 8254150
    Abstract: An inverter provides alternating current (iout) to a load (130) containing a welding circuit. The inverter includes at least one commutation circuit (110) and a bridge circuit (120) connected to a bus forwarding power from a DC power source (100). The bus is also galvanically connected to the load (130) via the bridge circuit (120). The at least one commutation circuit (110) receives power from the DC power source (100); receives energy from inductive elements in the load (130) during a storage phase of a cyclic procedure, and controls energy feedback to the load (130) during a feedback phase of the cyclic procedure. The at least one commutation circuit (110) is a two-pole having a first pole (p1) connected to a first node (A) and a second pole (p2) connected to a second node (B). The at least one commutation circuit (110) is arranged to receive energy from the load (130) and feedback energy to the load (130) via the first and second nodes (A; B), either directly or via the bridge circuit (120).
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: August 28, 2012
    Assignee: ESAB AB
    Inventors: Rolf Karlsson, Per Andersson, Dan Wessman
  • Publication number: 20120195086
    Abstract: An inverter provides alternating current (iout) to a load (130) containing a welding circuit. The inverter includes at least one commutation circuit (110) and a bridge circuit (120) connected to a bus forwarding power from a DC power source (100). The bus is also galvanically connected to the load (130) via the bridge circuit (120). The at least one commutation circuit (110) receives power from the DC power source (100); receives energy from inductive elements in the load (130) during a storage phase of a cyclic procedure, and controls energy feedback to the load (130) during a feedback phase of the cyclic procedure. The at least one commutation circuit (110) is a two-pole having a first pole (p1) connected to a first node (A) and a second pole (p2) connected to a second node (B). The at least one commutation circuit (110) is arranged to receive energy from the load (130) and feedback energy to the load (130) via the first and second nodes (A; B), either directly or via the bridge circuit (120).
    Type: Application
    Filed: September 14, 2009
    Publication date: August 2, 2012
    Applicant: ESAB AB
    Inventors: Rolf Karlsson, Per Andersson, Dan Vessman
  • Publication number: 20120180759
    Abstract: A method includes: retarding spark timing relative to a predetermined spark timing when an engine torque output reduction is requested for a gear shift; estimating a first torque output of an engine based on N cylinders of the engine being fueled, an engine speed, an air per cylinder (APC), and the predetermined spark timing; estimating a second torque output of the engine based on M cylinders being fueled, the engine speed, the APC, and the spark timing. determining an initial pressure ratio across a turbocharger compressor; determining an adjustment based on M and the first and second torque outputs; generating a desired pressure ratio across the turbocharger compressor based on the adjustment and the initial pressure ratio; and controlling opening of a turbocharger wastegate based on the desired pressure ratio. N is a total number of cylinders of the engine and M is less than or equal to N.
    Type: Application
    Filed: February 15, 2011
    Publication date: July 19, 2012
    Applicant: GM Global Technology Operations LLC
    Inventors: Christopher E. Whitney, Jeffrey M. Kaiser, Per Andersson, Timothy L. Gibbs
  • Publication number: 20120159947
    Abstract: A method of controlling turbine efficiency in a turbo unit provided on an internal combustion engine includes providing a flow of gas in an area upstream a turbine at a direction different to the flow of exhaust gases in the same area, regulating the flow by a valve, and controlling the valve from a control unit having at least boost pressure and/or EGR flow as input parameters.
    Type: Application
    Filed: February 19, 2009
    Publication date: June 28, 2012
    Applicant: Volvo Lastvagnar AB
    Inventors: Per Andersson, Martin Bauer
  • Publication number: 20120003682
    Abstract: Apparatus and methods are provided for performing cell growth and cell based assays in a liquid medium. The apparatus comprises a base plate supporting a plurality of micro-channel elements, each micro-channel element comprising a cell growth chamber, an inlet channel and an outlet channel, a cover plate positioned over the base plate to define the chambers and connecting channels. Means are incorporated in the cell growth chambers, for cell attachment and cell growth. In particular, the invention provides a rotatable disc microfabricated for performing cell growth and cell based assays. The apparatus and method can be used for the growth of cells and the detection and measurement of variety of biochemical processes and products using non-invasive techniques, that is techniques which do not compromise the integrity or viability of cells.
    Type: Application
    Filed: September 13, 2011
    Publication date: January 5, 2012
    Applicant: GYROS Patent AB
    Inventors: Nicholas Thomas, Per Andersson
  • Patent number: 8030062
    Abstract: Apparatus and methods are provided for performing cell growth and cell based assays in a liquid medium. The apparatus comprises a base plate supporting a plurality of micro-channel elements, each micro-channel element comprising a cell growth chamber, an inlet channel and an outlet channel, a cover plate positioned over the base plate to define the chambers and connecting channels. Means are incorporated in the cell growth chambers, for cell attachment and cell growth. In particular, the invention provides a rotatable disc microfabricated for performing cell growth and cell based assays. The apparatus and method can be used for the growth of cells and the detection and measurement of variety of biochemical processes and products using non-invasive techniques, that is techniques which do not compromise the integrity or viability of cells.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: October 4, 2011
    Assignee: Gyros Patent AB
    Inventors: Nicholas Thomas, Per Andersson
  • Publication number: 20110126810
    Abstract: A method is provided for operating a turbo charger of a combustion engine that includes, but is not limited to providing a set of values of a basic boost pressure for opening a waste gate for the turbo charger at a standard Temperature and at a standard pressure and measuring an ambient air temperature and an ambient air pressure. The method also includes, but is not limited to calculating a density of ambient air based on a mathematical formula using the measured ambient air temperature and the measured ambient air pressure and transforming at least one point of the provided set of values of the basic boost pressure at standard conditions into at least one point of an estimated set of values of the basic boost pressure at ambient conditions by a correction factor based on the calculated density, and controlling the turbo charger with least one corrected value of the basic boost pressure.
    Type: Application
    Filed: September 7, 2010
    Publication date: June 2, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Per ANDERSSON, Erik JANSSON
  • Publication number: 20110120427
    Abstract: A twin turbo assembly is provided for an automotive vehicle that includes, but is not limited to a first air intake for sucking in ambient air, a first turbo charger that includes, but is not limited to a first compressor connected to the first air intake, a first intake duct connecting the first turbo charger to a combustion engine, a second air intake for sucking in ambient air, a second turbo charger that includes, but is not limited to a second compressor connected to the second air intake, and a second intake duct connecting the second turbo charger to the combustion engine. The first intake duct is connected to the second intake duct, and a first bypass valve is provided to connect the first air intake to the first intake duct bypassing the first compressor and/or a second bypass valve is provided to connect the second air intake to the second intake duct bypassing the second compressor.
    Type: Application
    Filed: August 20, 2010
    Publication date: May 26, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventor: Per ANDERSSON