Patents by Inventor Nils Jonsson

Nils Jonsson 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: 7407526
    Abstract: The invention concerns an iron powder for fortifying foodstuff. The powder consists of a reduced iron powder having irregularly shaped particles, wherein the iron powder has a ratio AD:PD less than 0.3, wherein AD is the apparent density in g/cm3, and PD is the particle density in g/cm3. The specific surface area of the powder particles is above 300 m2/kg as measured by the BET method and the average particle size is between 5-45 ?m.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: August 5, 2008
    Assignee: Höganäs AB
    Inventors: Bo Hu, Fredrik Eklund, Nils Jonsson, Fredrik Persson
  • Publication number: 20050145068
    Abstract: The invention concerns an iron powder for fortifying foodstuff. The powder consists of a reduced iron powder having irregularly shaped particles, wherein the iron powder has a ratio AD:PD less than 0.3, wherein AD is the apparent density in g/cm3, and PD is the particle density in g/cm3. The specific surface area of the powder particles is above 300 m2/kg as measured by the BET method and the average particle size is between 5-45 ?m.
    Type: Application
    Filed: November 24, 2004
    Publication date: July 7, 2005
    Applicant: HOGANAS AB
    Inventors: Bo Hu, Fredrik Eklund, Nils Jonsson, Fredrik Persson
  • Patent number: 6702870
    Abstract: The invention concerns a process permitting the preparation of a new powder, which as such or further processed is useful within a wide variety of different fields and which has magnetic and electric properties. The powder includes at least 0.5% by weight of iron containing silicate and at least 10% by weight of metallic iron and/or alloyed iron and is prepared by a process comprising the steps of mixing an iron containing powder and a silicon containing powder; and reducing the obtained mixture at a temperature above about 450° C.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: March 9, 2004
    Assignee: Höganäs AB
    Inventors: Lars Hultman, Nils Jonsson, Britt Benemark, Peter Grahn
  • Publication number: 20040038144
    Abstract: A carrier core material having a voltage breakdown of at least 300V, essentially consisting of a magnetite base powder, the particles of which are surrounded by an electrically insulating coating essentially free from organic material.
    Type: Application
    Filed: May 22, 2003
    Publication date: February 26, 2004
    Inventors: Lars Hultman, Rose-Marie Yttergen, Fredrik Eklund, Nils Jonsson
  • Publication number: 20030177867
    Abstract: The invention concerns a process permitting the preparation of a new powder, which as such or further processed is useful within a wide variety of different fields and which has magnetic and electric properties. The powder includes at least 0.5% by weight of iron containing silicate and at least 10% by weight of metallic iron and/or alloyed iron and is prepared by a process comprising the steps of mixing an iron containing powder and a silicon containing powder; and reducing the obtained mixture at a temperature above about 450° C.
    Type: Application
    Filed: November 25, 2002
    Publication date: September 25, 2003
    Inventors: Lars Hultman, Nils Jonsson, Britt Benemark, Peter Grahn, Svante Grahn
  • Publication number: 20030073023
    Abstract: The invention concerns a new carrier core material having high voltage breakdown. The new material comprises a particulate ferrite base material having a substantially spherical particle shape, wherein the powder particles are coated with an inorganic, electrically insulating coating having a resistivity higher than that of the ferrite base material.
    Type: Application
    Filed: January 18, 2002
    Publication date: April 17, 2003
    Inventors: Lars Hultman, Rose-Marie Yttergren, Fredrik Eklund, Nils Jonsson
  • Publication number: 20030073022
    Abstract: The inventions concerns a new carrier core material consisting of particles of essentially pure, spherical magnetite. These particles are electrically insulated by an inorganic phosphorus containing coating.
    Type: Application
    Filed: January 16, 2002
    Publication date: April 17, 2003
    Inventors: Lars Hultman, Rose-Marie Yttergren, Fredrik Eklund, Nils Jonsson
  • Patent number: 5115780
    Abstract: Device for limiting the exhaust gas temperature in an internal combustion engine consisting of a thermoelement (2) protruding into the engine exhaust manifold (1) and an electronic control unit (3) connected thereto, which is disposed to send an output signal dependent on the exhaust gas temperature sensed by the thermoelement to the fuel injection system (4) of the engine. When the output signal indicates that the temperature exceeds a maximum-permissible level, an excess of fuel is injected for cooling.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: May 26, 1992
    Assignee: Nira Automotive AB
    Inventors: Nils Jonsson, Mats Dahlgren
  • Patent number: 5083434
    Abstract: A system for controlling the boost pressure in a turbocharged internal combustion engine comprising a control device (171), an operating device (11, 12, 13) controlled by the control device and operative in controlling the speed of a turbine (4) and means (22) for feeding to the control device (171) signals which represent the true boost pressure prevailing at a location upstream of the engine throttle valve (9). The control device includes a data processor (18, 21) in which there is stored data which relates to theoretic control-valve settings and values which are intended to give boost pressure control values as a function of engine speed. The control device is constructed to compare the true boost pressure with the given control value subsequent to an increase in load with a subsequent rise in pressure over an interval of time.
    Type: Grant
    Filed: January 17, 1990
    Date of Patent: January 28, 1992
    Assignee: Nira Automotive AB
    Inventors: Mats Dahlgren, Nils Jonsson
  • Patent number: 4650990
    Abstract: A processor-controlled light screen system comprises spaced-apart Master and Slave units each having a plurality of light transmitters and light receivers. Each transmitter in the Master unit or Slave unit is adapted to provide a light beam carrying a respective binary coded signal to a corresponding receiver in the unit to enable the two otherwise independent units to interactively communicate with one another. The Master and Slave units respectively include a Master processor and a Slave processor, each programmed to sequentially actuate the transmitters and receivers in their respective units in pairs. Operation is initiated by the Master processor program which causes the transmitter of the first actuated transmitter-receiver pair of the Master unit to send its respective coded signal.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: March 17, 1987
    Inventor: Nils Jonsson