Patents by Inventor Lars Persson

Lars Persson 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: 20070261829
    Abstract: The invention relates to a heat exchanger with an indentation pattern, and specifically a heat exchanger with heat exchanger plates (1) provided with a special pattern instead of the traditional herringbone pattern. The pattern comprises at least one section with bulges (2) and hollows (3), said bulges and hollows having flat tops and bottoms intended to be placed against respective hollows and bulges of a heat exchanger plate of a corresponding design. The surface area of said tops and bottoms is such in relation to the distance between the tops and bottoms that channels (6) for the flow of a medium are formed between the bulges.
    Type: Application
    Filed: September 7, 2005
    Publication date: November 15, 2007
    Applicant: EP TECHNOLOGY AB
    Inventor: Lars Persson
  • Publication number: 20070255505
    Abstract: A system and method are used in connection with processing of blood components. The processing of blood components may involve centrifugal separation and/or filtering of the blood components. In some examples, at least some blood components are centrifugally separated in a chamber and then filtered via a filter rotating along with a centrifuge rotor, wherein the filter is located closer than the chamber to an axis of rotation of the rotor. The filter may include a porous filtration medium configured to filter leukocytes, platelets, and/or red blood cells. Some examples include a pressure sensor sensing pressure of pumped blood components. The sensed pressure may be used in connection with controlling the pumping of the blood products and/or in connection with determining the location of an interface associated with the blood products. Other uses of the sensed pressure are also possible.
    Type: Application
    Filed: March 27, 2007
    Publication date: November 1, 2007
    Inventors: Niclas Hogberg, Emanuel Hallgren, Peter Pihlstedt, Brian Holmes, Lars Persson, Lars Strandberg, Geert Van Waeg, Frank Corbin
  • Patent number: 7279107
    Abstract: A system and method are used in connection with processing of blood components. The processing of blood components may involve centrifugal separation and/or filtering of the blood components. In some examples, at least some blood components are centrifugally separated in a chamber and then filtered via a filter rotating along with a centrifuge rotor, wherein the filter is located closer than the chamber to an axis of rotation of the rotor. The filter may include a porous filtration medium configured to filter leukocytes, platelets, and/or red blood cells. Some examples include a pressure sensor sensing pressure of pumped blood components. The sensed pressure may be used in connection with controlling the pumping of the blood products and/or in connection with determining the location of an interface associated with the blood products. Other uses of the sensed pressure are also possible.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: October 9, 2007
    Assignee: Gambro, Inc.
    Inventors: Niclas Högberg, Emanuel Hällgren, Peter Pihlstedt, Brian M. Holmes, Lars Persson, Lars Strandberg, Geert Van Waeg, Frank Corbin, III
  • Patent number: 7247353
    Abstract: A method and a device for contactless application of a coating on a three dimensionally distributed surface (14;24;34;44;54;74;84;104). The method comprises application of electrically charged particles (15;25;35;55;65;75;85;105) in such positions on said surface as to form a predetermined pattern, by guiding each of said particles individually to a predetermined position on said surface. The guiding is made by means of an adjustable electric field (12;22;32;42;52;72;82;102) having flux lines with a longitudinal direction extending through said surface, whereby said particles form said coating according to said predetermined pattern on said surface.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: July 24, 2007
    Assignee: Nolato AB
    Inventor: Lars Persson
  • Patent number: 7213635
    Abstract: A heat exchanger including plates with a pattern of grooves and connections for inlets and outlets. The plates are placed in a pack and brazed so that separate channels for two media area are formed between alternating pair of plates. A set of holes is arranged in the plates around the connections, and a reinforcement mechanism is arranged through the holes.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: May 8, 2007
    Assignee: EP Technology AB
    Inventor: Lars Persson
  • Publication number: 20060191674
    Abstract: A heat exchanger and a method for drying a humid medium. In the heat exchanger an internal cross-over passage, allowing a humid medium to double back on itself in a zone delimited by a barrier, is provided. In a first step the heat exchanger cools itself and in a final step the heat exchanger heats itself. Separation areas allow condensation and collection of water within the heat exchanger. The heat exchanger and method enable drying of compressed air within one and the same heat exchanger package.
    Type: Application
    Filed: January 29, 2004
    Publication date: August 31, 2006
    Inventor: Lars Persson
  • Publication number: 20060179875
    Abstract: An evaporator including an evaporating chamber equipped with a drainage. The drainage drains accumulated liquid from the evaporator's lower parts and includes an external expansion driven injector and/or an external pump. The evaporator can be used e.g. in a heat exchanger, e.g. in a heat pump system or air condition system, and the vacuum driven injector can be integrated with an expansion device of the heat exchanger. A condenser can be used together with the evaporator in a heat exchanger of the plate type realizing an integrated superheater/supercooler. This is accomplished by the definition and use of delimited interacting zones through which the cooling medium circulates under heat exchange with itself.
    Type: Application
    Filed: April 15, 2004
    Publication date: August 17, 2006
    Applicant: EP TEChNOLOGY AB
    Inventor: Lars Persson
  • Publication number: 20060141098
    Abstract: The present invention relates to a nutritional supplement for animals in the form of a composition comprising calcium, phosphorus and sulphur, and a method for producing the same as a granulate. According to the invention, a calcium compound is granulated by means of a granulation liquid comprising sulphuric acid.
    Type: Application
    Filed: September 10, 2003
    Publication date: June 29, 2006
    Applicant: Kemira Grow How AB
    Inventors: Lars Persson, Bernt Nilsson
  • Publication number: 20060048917
    Abstract: A heat exchanger including plates with a pattern of grooves and connections for inlets and outlets. The plates are placed in a pack and brazed so that separate channels for two media area are formed between alternating pair of plates. A set of holes is arranged in the plates around the connections, and a reinforcement mechanism is arranged through the holes.
    Type: Application
    Filed: October 31, 2003
    Publication date: March 9, 2006
    Applicant: EP TECHNOLOGY AB
    Inventor: Lars Persson
  • Publication number: 20060051518
    Abstract: A method and a device for contactless application of a coating on a three dimensionally distributed surface (14;24;34;44;54;74;84;104). The method comprises application of electrically charged particles (15;25;35;55;65;75;85;105) in such positions on said surface as to form a predetermined pattern, by guiding each of said particles individually to a predetermined position on said surface. The guiding is made by means of an adjustable electric field (12;22;32;42;52;72;82;102) having flux lines with a longitudinal direction extending through said surface, whereby said particles form said coating according to said predetermined pattern on said surface.
    Type: Application
    Filed: July 9, 2003
    Publication date: March 9, 2006
    Inventor: Lars Persson
  • Patent number: 6875393
    Abstract: A method for injection moulding, comprising introducing, under pressure, a melt into a cavity (14) defined by two mould halves (10, 11) of a mould (6). The method is characterized by the steps of joining the mould halves (10, 11), for definition of said cavity (14), by moving at least one of the mould halves (11) along a first axis, and, by moving along a second axis extending transversely of said first axis, arranging a locking means (7) on the mould (6). The locking means (7) has locking surfaces (19) which grasp the mould (6) and its joined mould halves (10, 11), at least one locking surface (19) wedgingly engaging a complementarily designed surface (17) of the mould (6) to cause conversion of the force by which the locking means (7) is arranged on the mould (6), into a locking force for holding together the mould halves (10, 11) in their joined state. The present invention also concerns an injection moulding assembly as well as a mould for injection moulding assemblies.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: April 5, 2005
    Assignee: Nolato AB
    Inventor: Lars Persson
  • Patent number: 6872067
    Abstract: The invention relates to an injection mould (1) for producing three-dimensional components. The mould has a system (2) for mould tempering having at least one groove (12) which is arbitrarily extended between two points in the available volume of the mould for conducting a tempering medium which is intended for tempering of modules (4, 8) included in the mould (1). Each groove (12) is along essentially its entire extent covered by a cover (15). The invention also concerns such a system (2) for mould tempering of injection moulds (1), as well as an injection moulding assembly comprising such an injection mould (1).
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: March 29, 2005
    Assignee: Nolato AB
    Inventor: Lars Persson
  • Patent number: 6863853
    Abstract: An assembly for manufacturing carriers of information or decoration, characterised by a mould unit comprising two mould means which are joinable with each other. The mould unit comprises an injection moulding station for injection moulding of said carriers, and a printing station with a stamping unit for applying to said carrier a covering formed in accordance with the current information or decoration. The present invention also concerns a corresponding method.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: March 8, 2005
    Assignee: Nolato AB
    Inventors: Hans Brewitz, Lars Persson, Thomas Svensson
  • Patent number: 6796016
    Abstract: An injection mould which comprises at least five modules aligned with each other. The five modules correspond to a first mould module and a second mould module to form a product cavity, a drive module for driving of sliders, an engaging module adapted, by application of a force, to prevent dividing between the first and the second mould module when introducing product material into the product cavity, and an ejector module for ejecting a completed product from one of the first and the second mould module. The method for making injection moulds comprises the steps of receiving a product pattern, defining function holes and function recesses, and defining, separate from and parallel to the construction of function holes and function recesses, a product cavity and the parting plane of the mould. Moreover the method comprises the step of mechanically machining a plurality of modules essentially simultaneously.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: September 28, 2004
    Assignee: Nolato AB
    Inventor: Lars Persson
  • Publication number: 20040039847
    Abstract: A server for a thin client network comprises a thin client network management and control module. The server also comprises a network interface mechanism which includes a broadband interface module and a narrowband emulation module inter-operable to provide a communications link to one or more thin client terminals on the thin client network. The management and control module is inter-operable with the network interface mechanism for providing a thin client network over a broadband network. Broadly speaking, the narrowband emulation module is superimposed on the broadband interface module to provide a network interface mechanism operable as an emulated narrowband interface. A thin client network implemented over a broadband network is also disclosed, together with a method for setting up and operating the same.
    Type: Application
    Filed: May 20, 2003
    Publication date: February 26, 2004
    Applicant: Sun Microsystems, Inc.
    Inventors: Lars Persson, Mikael Lofstrand
  • Publication number: 20040026341
    Abstract: A system and method are used in connection with processing of blood components. The processing of blood components may involve centrifugal separation and/or filtering of the blood components. In some examples, at least some blood components are centrifugally separated in a chamber and then filtered via a filter rotating along with a centrifuge rotor, wherein the filter is located closer than the chamber to an axis of rotation of the rotor. The filter may include a porous filtration medium configured to filter leukocytes, platelets, and/or red blood cells. Some examples include a pressure sensor sensing pressure of pumped blood components. The sensed pressure may be used in connection with controlling the pumping of the blood products and/or in connection with determining the location of an interface associated with the blood products. Other uses of the sensed pressure are also possible.
    Type: Application
    Filed: April 16, 2003
    Publication date: February 12, 2004
    Inventors: Niclas Hogberg, Emanuel Hallgren, Peter Pihlstedt, Brian M. Holmes, Lars Persson, Lars Strandberg, Geert Van Waeg, Frank Corbin
  • Patent number: 6659761
    Abstract: A slider mechanism (1) for an injection mould comprising a core (5) which is insertable into a cavity (20) defined by mould halves (12) of the mould. The slider mechanism (1) has a body (2) which supports the core (5). The invention is characterised by a drive device (3), and a connection (4) between said body (2) and said drive device (3). The connection (4) is adapted to convert a rotary motion of the drive device (3) into a translational motion of the body (2). The invention also concerns an injection mould comprising such a slider mechanism as well as the actual slider.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: December 9, 2003
    Assignee: Nolato AB
    Inventor: Lars Persson
  • Patent number: 6652263
    Abstract: A mold includes a first and a second mutually joinable mold half which in their joined state define at least one cavity, and a sprue formed in the mold for conducting a melt to each cavity. The sprue includes an ingate portion connecting to each cavity and contained in a first ejector of an ejector arrangement. An injection molding assembly including such a mold is also disclosed.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: November 25, 2003
    Assignee: Nolato AB
    Inventor: Lars Persson
  • Publication number: 20030107153
    Abstract: An assembly for manufacturing carriers (4) of information or decoration, characterised by a mould unit comprising two mould means which are joinable with each other. The mould unit comprises an injection moulding station (1) for injection moulding of said carriers (4), and a printing station (2) with a stamping unit (15) for applying to said carrier (4) a covering formed in accordance with the current information or decoration. The present invention also concerns a corresponding method.
    Type: Application
    Filed: December 27, 2002
    Publication date: June 12, 2003
    Inventors: Hans Brewitz, Lars Persson, Thomas Svensson
  • Patent number: 6564862
    Abstract: The invention relates to a multicircuit heat exchanger, i.e. a heat exchanger capable of circulating more than two media. Through delimiting zones in the heat exchanger package, a further medium can be placed in heat exchange with one of the two media normally being circulated. Several such delimited zones may be arranged in the same heat exchanger package, and the zones may even overlap each other for mutual heat exchange. The present invention thus provides a multicircuit heat exchanger comprising plates (1) with a pattern of grooves and inlet and outlet connections. The plates are placed in a package and brazed together to form separate ducts for two main media between alternate pairs of plates. According to the invention, at least one delimited zone (8, 9, 10) is defined between alternate pairs of plates, to block off a first medium whereas a second medium is allowed to flow through.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 20, 2003
    Assignee: EP Technology AB
    Inventor: Lars Persson