Patents by Inventor Erik LÖFGREN

Erik LÖFGREN 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: 12274991
    Abstract: A reactor arrangement for performing, by means of at least one solid reaction member(s), a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic media in a continuous process. The arrangement comprises at least one reactor with a cylindrical reaction vessel (11) in which at least one reactor a transformation device (100) has been mounted. The vessel (11) comprises at least one inlet port (30) in the vicinity of its bottom wall (18) and at least one outlet port (40) arranged in the vicinity of its upper end portion. Each inlet port (30) is connected to a fluid supply member (300) configured to be submerged below the fluid surface level in a pool or a pond. The fluid supply member (300) comprises at least one inlet opening (301) configured to continuously supply a fluid from the pool or the pond to the vessel (11). Each outlet port (40) is configured to continuously let out the fluid from the vessel (11) to the pool or the pond via the outlet port (40).
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: April 15, 2025
    Assignee: Spinchem AB
    Inventors: Emil Byström, Erik Löfgren, Alexander Berggren
  • Publication number: 20220331759
    Abstract: A reactor arrangement for performing, by means of at least one solid reaction member(s), a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic media in a continuous process. The arrangement comprises at least one reactor with a cylindrical reaction vessel (11) in which at least one reactor a transformation device (100) has been mounted. The vessel (11) comprises at least one inlet port (30) in the vicinity of its bottom wall (18) and at least one outlet port (40) arranged in the vicinity of its upper end portion. Each inlet port (30) is connected to a fluid supply member (300) configured to be submerged below the fluid surface level in a pool or a pond. The fluid supply member (300) comprises at least one inlet opening (301) configured to continuously supply a fluid from the pool or the pond to the vessel (11). Each outlet port (40) is configured to continuously let out the fluid from the vessel (11) to the pool or the pond via the outlet port (40).
    Type: Application
    Filed: August 25, 2020
    Publication date: October 20, 2022
    Applicant: Spinchem AB
    Inventors: Emil Byström, Erik Löfgren, Alexander Berggren
  • Patent number: 11192076
    Abstract: The invention refers to a flow-promoting device (100; 100; 100?) for performing a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic medium. The flow-promoting device (100; 100; 100?) comprises a ferromagnetic material (5) and a retaining structure (1; 1; 1?), the retaining structure having a compartment (9; 9?) defined by a permeable material (11; 11?). The retaining structure (1; 1; 1?) comprises a top wall (3; 3?) and a circumferential side wall (4; 4?), wherein the top wall (3; 3?) and the circumferential side wall (4; 4?) is formed mainly by said permeable material (11; 11?). The compartment (9; 9?) of the retaining structure (1; 1; 1?) is arranged to contain at least one fluid-permeable solid reaction member.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: December 7, 2021
    Assignee: SPINCHEM AB
    Inventors: Emil Byström, Knut Irgum, Erik Löfgren, Christopher Öberg
  • Publication number: 20200009519
    Abstract: The invention refers to a flow-promoting device (100; 100; 100?) for performing a biological or chemical transformation, or physical or chemical trapping from, or release of agents to, a fluidic medium. The flow-promoting device (100; 100; 100?) comprises a ferromagnetic material (5) and a retaining structure (1; 1; 1?), the retaining structure having a compartment (9; 9?) defined by a permeable material (11; 11?). The retaining structure (1; 1; 1?) comprises a top wall (3; 3?) and a circumferential side wall (4; 4?), wherein the top wall (3; 3?) and the circumferential side wall (4; 4?) is formed mainly by said permeable material (11; 11?). The compartment (9; 9?) of the retaining structure (1; 1; 1?) is arranged to contain at least one fluid-permeable solid reaction member.
    Type: Application
    Filed: February 9, 2018
    Publication date: January 9, 2020
    Inventors: Emil BYSTRÖM, Knut IRGUM, Erik LÖFGREN, Christopher ÖBERG
  • Patent number: 4654388
    Abstract: An adhesive composition comprising an aqueous dispersion of film forming resin, filler and tackifying substances. The dispersion uses wood rosin and esterified rosin as tackifying substances and also includes diethylene glycol monobutyl ether. The compositions are specially formulated to avoid use of the more volatile organic solvents which are undesirable for flammability or health reasons. The compositions are particularly suitable for use as nonflammable floor laying adhesives by methods in which porous flooring material is laid onto the wet adhesive layer or non-porous flooring material is laid onto the "semi-dry" adhesive layer.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: March 31, 1987
    Assignee: USM Corporation
    Inventor: Per-Erik Lofgren