Patents by Inventor Marko Stajkovic

Marko Stajkovic 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: 11370571
    Abstract: An induction sealing device for induction welding of a packaging material is disclosed. In some embodiments, the induction sealing device comprises an inductor coil configured to induce an alternating current in a metal foil of the packaging material for inductive heating thereof. The induction sealing device can further comprise a magnetic insert encapsulating the inductor coil apart from an outer portion of the inductor coil, and the outer portion can be arranged towards the packaging material to be sealed. In some embodiments, the magnetic insert is configured to interact with the packaging material to be sealed via at least one interactive surface. In some embodiments, the induction sealing device comprises a connection unit. The connection unit can comprise a parallel connection configured to connect to the inductor coil and to an AC power source. A corresponding method of manufacturing an induction sealing device is also disclosed.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: June 28, 2022
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Dag Svärd, Patrik Ingvarsson, Charlott Friberg, Marko Stajkovic
  • Publication number: 20200148406
    Abstract: A disclosed induction sealing device (100) for induction welding of a packaging material comprises an inductor coil (101) configured to induce an alternating current in a metal foil of the packaging material for inductive heating thereof, and a magnetic insert (102) encapsulating the inductor coil (101) apart from an outer portion (103) thereof to be arranged towards the packaging material to be sealed. The magnetic insert (102) is configured to interact with the packaging material to be sealed via at least one interactive surface (104). The induction sealing device (100) comprises a connection unit (105). The connection unit (105) comprises a parallel connection (106) to the inductor coil (101) and is configured for connection to an AC power source. A corresponding method (200) of manufacturing an induction sealing device (100) is also disclosed.
    Type: Application
    Filed: July 5, 2018
    Publication date: May 14, 2020
    Inventors: Dag Svärd, Patrik Ingvarsson, Charlott Friberg, Marko Stajkovic
  • Patent number: 10640242
    Abstract: A sealing member comprising a sealing section configured to interact with a sealing band of a tube of packaging material in a sealing stage, and a package volume controlling section configured to interact with a first area next to the sealing band of said tube of packaging material in the sealing stage, wherein said package volume controlling section is provided with a socket for holding an insert.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: May 5, 2020
    Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.
    Inventors: Marko Stajkovic, Håkan Andersson, Louis Carlioz
  • Publication number: 20200017246
    Abstract: A sealing member comprising a sealing section configured to interact with a sealing band of a tube of packaging material in a sealing stage, and a package volume controlling section configured to interact with a first area next to the sealing band of said tube of packaging material in the sealing stage, wherein said package volume controlling section is provided with a socket for holding an insert.
    Type: Application
    Filed: March 26, 2018
    Publication date: January 16, 2020
    Inventors: Marko STAJKOVIC, Håkan ANDERSSON, Louis CARLIOZ
  • Patent number: 10358243
    Abstract: The present invention relates to an induction sealing device for heat sealing of packaging material. The sealing device comprises a conductor partly encapsulated in a supporting body for cooperation with the packaging material during sealing. The coil conductor has a reduced cross sectional area at at least one position along the coil conductor so as to concentrate the magnetic flux induced by the coil conductor at the at least one position. The invention also relates to a method of heat sealing a packaging material using the induction sealing device.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: July 23, 2019
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Karl Israelsson, Håkan Andersson, Marko Stajkovic, Louis Carlioz
  • Patent number: 10350832
    Abstract: Disclosed embodiments relate to an induction sealing device for heat sealing packaging material for producing sealed packages of pourable food products. In some embodiments, the sealing device includes: an inductor device which interacts with said packaging material by means of at least one active surface; a flux-concentrating insert; and a supporting body made of heat-conducting material and housing said inductor device and said flux-concentrating insert, wherein said flux concentrating insert is made by a magnetic compound of a polymer and soft magnetic particles; and said flux concentrating insert interacts with said packaging material via at least one interactive surface.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: July 16, 2019
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Per Karlsson, Marko Stajkovic, Louis Carlioz, Håkan Andersson, Patrik Ingvarsson
  • Publication number: 20170274582
    Abstract: Disclosed embodiments relate to an induction sealing device for heat sealing packaging material for producing sealed packages of pourable food products. In some embodiments, the sealing device includes: an inductor device which interacts with said packaging material by means of at least one active surface; a flux-concentrating insert; and a supporting body made of heat-conducting material and housing said inductor device and said flux-concentrating insert, wherein said flux concentrating insert is made by a magnetic compound of a polymer and soft magnetic particles; and said flux concentrating insert interacts with said packaging material via at least one interactive surface.
    Type: Application
    Filed: November 18, 2015
    Publication date: September 28, 2017
    Inventors: Per KARLSSON, Marko STAJKOVIC, Louis CARLIOZ, Håkan ANDERSSON, Patrik INGVARSSON
  • Publication number: 20170036797
    Abstract: The present invention relates to an induction sealing device for heat sealing of packaging material. The sealing device comprises a conductor partly encapsulated in a supporting body for cooperation with the packaging material during sealing. The coil conductor has a reduced cross sectional area at at least one position along the coil conductor so as to concentrate the magnetic flux induced by the coil conductor at the at least one position. The invention also relates to a method of heat sealing a packaging material using the induction sealing device.
    Type: Application
    Filed: March 24, 2015
    Publication date: February 9, 2017
    Applicant: Tetra Laval Holdings & Finance S.A.
    Inventors: Karl Israelsson, Håkan Andersson, Marko Stajkovic, Louis Carlioz