Patents by Inventor Jan Rogers

Jan Rogers 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: 20040182375
    Abstract: An apparatus and method for improving the transient response of a spark-ignited fuel-injected internal combustion engine is disclosed. This is accomplished by employing one or more novel capillary fuel injectors. These devices are port fuel injectors modified by inserting one or more relatively small diameter heated tubular capillaries between the fuel line and a conventional injector. Sufficient heating can be produced so that flash vaporization occurs as the fuel exits the injector. The heaters are turned on using control algorithms that can be based on exhaust gas oxygen concentration, load on the engine, and accelerator pedal position.
    Type: Application
    Filed: January 15, 2004
    Publication date: September 23, 2004
    Inventors: Jan-Roger Linna, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
  • Patent number: 6779513
    Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a fluid control valve for placing the inlet end of the at least one capillary flow passage in fluid communication with the liquid fuel source and introducing the liquid fuel in a substantially liquid state, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage and means for cleaning deposits formed during operation of the apparatus. The fuel injector is effective in reducing cold-start and warm-up emissions of an internal combustion engine.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: August 24, 2004
    Assignee: Chrysalis Technologies Incorporated
    Inventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
  • Publication number: 20040161368
    Abstract: An assay apparatus comprising: i) an assay cartridge (52, 53) comprising at least one well (57-62) and a pipette (50) positionable in at least one said well; ii) a holder arranged to receive said cartridge; iii) drive means operable to position said pipette in selected wells of said cartridge; iv) a gas pressure applicator couplable to said pipette whereby to cause liquid flow through said membrane; and v) a radiation detector operable to detect radiation from a well of said cartridge or from said pipette.
    Type: Application
    Filed: April 9, 2004
    Publication date: August 19, 2004
    Inventors: Jostein Holtlund, Stig Morten Borch, Thorstein Seim, Tore Janson, Hege Ton, Jan Roger Karlson, Inger Lise Lauvstad
  • Publication number: 20040003801
    Abstract: A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat a liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and a valve for metering fuel to the internal combustion engine, a controller to control the power supplied to the heat source of each of the plurality of fuel injectors to achieve a predetermined target temperature, a sensor for use in determining engine air flow and a sensor for measuring a value indicative of degree of engine warm-up of the internal combustion engine. The fuel system of the present invention also provides fault detection capabilities with respect to malfunctions within the capillary flow passage.
    Type: Application
    Filed: April 10, 2003
    Publication date: January 8, 2004
    Inventors: Jan-Roger Linna, John Paul Mello
  • Publication number: 20040000296
    Abstract: A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat a liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and a valve for metering fuel to the internal combustion engine, a controller to control the power supplied to the heat source of each of the plurality of fuel injectors to achieve a predetermined target temperature, a sensor for use in determining engine air flow and a sensor for measuring a value indicative of degree of engine warm-up of the internal combustion engine.
    Type: Application
    Filed: April 10, 2003
    Publication date: January 1, 2004
    Inventors: Jan-Roger Linna, John Paul Mello, Chad Smutzer
  • Publication number: 20030178011
    Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage; and a valve for metering fuel to the internal combustion engine, the valve located proximate to the outlet end of the at least one capillary flow passage, the valve including a low mass member for substantially occluding the stream of fuel to the internal combustion engine; wherein the low mass member for substantially occluding the stream of fuel to the internal combustion engine is formed of a material having low mass and or a low coefficient of thermal conductivity.
    Type: Application
    Filed: January 15, 2003
    Publication date: September 25, 2003
    Inventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
  • Publication number: 20030178009
    Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a fluid control valve for placing the inlet end of the at least one capillary flow passage in fluid communication with the liquid fuel source and introducing the liquid fuel in a substantially liquid state, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage and means for cleaning deposits formed during operation of the apparatus. The fuel injector is effective in reducing cold-start and warm-up emissions of an internal combustion engine.
    Type: Application
    Filed: May 10, 2002
    Publication date: September 25, 2003
    Inventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
  • Publication number: 20030178010
    Abstract: A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat a liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and a valve for metering fuel to the internal combustion engine, a controller to control the power supplied to the heat source of each of the plurality of fuel injectors to achieve a predetermined target temperature, a sensor for use in determining engine air flow and a sensor for measuring a value indicative of degree of engine warm-up of the internal combustion engine.
    Type: Application
    Filed: October 31, 2002
    Publication date: September 25, 2003
    Inventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
  • Publication number: 20030145836
    Abstract: A method of controlling combustion in an homogenous charge compression ignition engine through indirect mechanisms. The method utilizes a predictive model so that combustion can be controlled over a wide range of operating conditions while maintaining optimum operation with respect to efficiency and emissions. The methods include an adaptive aspect, which allows the predictive model to be updated if deemed necessary. Furthermore, the methods include a model with a plurality of control modes. A control mode can be chosen to optimize the engine for one of a plurality of output characteristics, including response time, efficiency, or emissions characteristics.
    Type: Application
    Filed: August 19, 2002
    Publication date: August 7, 2003
    Inventors: Jan-Roger Linna, Robert Bowyer, Bernard J. Challen, John Paul Mello, Peter Palmer, Richard Stobart
  • Patent number: 6569911
    Abstract: A method of manufacturing a support media from a cross-linked polymerisate based on vinyl compounds, and exhibiting residual vinyl groups. The characteristic feature of the method is that the polymerisate is subjected to a heating step that preferably is carried out under reduced access of oxygen. The use of the support media is also described.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: May 27, 2003
    Assignee: Amersham Biosciences AB
    Inventors: Torunn Arntsen, Jan Roger Karlson, Geir Fonnum, Steinar Hagen
  • Patent number: 6201705
    Abstract: The invention relates to a magazine (1) adapted for enclosing a plurality of circuit boards (2) in side-by-side relationship, and comprises a plurality of guide strips (3a, 3b) on mutually opposing inner wall parts, wherein mutually opposing and mutually corresponding guide strips are adapted for coaction with mutually opposing circuit board edge parts (2c, 2e) for the guiding of a circuit board (2). The magazine includes heat-emitting means in the form of a plurality of vertical cooling channels (4a, 4b, 4c) delimited by wall parts, wherein two of these wall parts are placed close together with their respective outer surfaces (21a″, 22a) facing towards a respectively closely adjacent circuit board position.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: March 13, 2001
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Lars Göran Nygren, Uno Dahl, Jan Roger Wennerberg, Lars Yngve Bertilsson
  • Patent number: 5889650
    Abstract: A rack arrangement including a rack designed to be able to support several magazines that are positioned above one another, where each magazine encloses several printed boards or printed board assemblies that are situated side by side. The frontal surface of the rack arrangement coincides with the front plane of each magazine. Cassettes designed to control or guide a flow of air for cooling the printed boards is arranged between adjacent magazines at a vertical distance from one another. The magazine and/or the cassette is arranged so that, from a fully-inserted position in the rack, the magazine and/or cassette may be displaced along guides to project beyond the rack, or vice versa. A magazine and adjacent cassette may be joined together by a hinge along a horizontal edge of the front plane. When displaced, the magazine may be dropped or tilted forwardly by the hinge, thereby making the back plane accessible.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: March 30, 1999
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Lars Yngve Bertilsson, Lars Goran Nygren, Jan Roger Wennerberg
  • Patent number: 4095237
    Abstract: An ink supply to a movable printing head in which the liquid reservoir follows the printing head in its movement along a recording medium and communicates with the liquid pumping chambers by means of at least one channel located in the printing head. In one embodiment, a filter is located in the flow path of the liquid reservoir to the pump chambers while in another embodiment the filter is disposed within the reservoir.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: June 13, 1978
    Assignee: Aktiebolaget Electrolux
    Inventors: Jan Roger Amberntsson, Roger Ingemar Andersson, Stig Bertil Sultan
  • Patent number: 4005440
    Abstract: A printing head for an ink jet printer in which a multiplicity of channels are formed, preferably in one plate of the head. Each of the channels communicates with a capillary tube that opens into a boundary surface of the plate. The arrangement of the channels is such that the head can be of a smaller size than other constructions, and the openings of the capillary tubes can be located closer to one another.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: January 25, 1977
    Assignee: Facit Aktiebolag
    Inventors: Jan Roger Amberntsson, Rober Ingemar Andersson, Stig Bertil Sultan
  • Patent number: 3953862
    Abstract: A printing head for an ink jet printer in which a liquid reservoir is operatively associated therewith. The liquid reservoir is provided with an air inlet opening having a filter which permits the passage of air but prevents liquid flow thereby preventing the leakage of liquid out of the reservoir upon the agitation of the liquid within the reservoir.
    Type: Grant
    Filed: December 26, 1974
    Date of Patent: April 27, 1976
    Assignee: Facit Aktiebolag
    Inventors: Jan Roger Amberntsson, Roger Ingemar Andersson, Stig Bertil Sultan