Patents by Inventor Alf Lofving

Alf Lofving 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: 10653878
    Abstract: An apparatus or method for forming a sterile connection. The apparatus includes at least two sterile tubes each disposed within a flange. Each flange has an external face that completely covers the mouth of the tube. Each flange is designed to be displaced when force is applied to the tube to move the tubes toward one another such that the external face of each flange is displaced radially or axially outwards away from the mouth of the tube. When the external faces are displaced, the external face of each flange opens and tubes connect and form a sterile connection therebetween.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: May 19, 2020
    Assignee: Metanova, AB
    Inventors: Alf Löfving, Håkan Samuelsson, Lennart Myhrberg, Sten Johansson
  • Patent number: 10247312
    Abstract: A disposable device for the sterile transfer of fluids, such as liquids or gases, includes a body, a bore formed through at least a portion of the interior of the body, and a linearly moveable plunger contained within the bore. The body is formed from a rotating section and a stationary section. Partial rotation of the rotating section around a portion of the stationary section and the plunger drives the plunger linearly within the bore, opening and closing the device. The plunger includes at least a first and a second opening, and a fluid channel in the interior of the plunger connecting the first and second openings forming a fluid pathway to downstream components when the device is open. A termination component at one end of the plunger connects to a downstream component. A flange at one end of the body attaches to an upstream component.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: April 2, 2019
    Assignee: EMD Millipore Corporation
    Inventors: Jeff Hartnett, Alf Lofving, Lars Hultquist, Jan Davidsson, Lennart Myhrberg
  • Publication number: 20180264251
    Abstract: An apparatus or method for forming a sterile connection. The apparatus includes at least two sterile tubes each disposed within a flange. Each flange has an external face that completely covers the mouth of the tube. Each flange is designed to be displaced when force is applied to the tube to move the tubes toward one another such that the external face of each flange is displaced radially or axially outwards away from the mouth of the tube. When the external faces are displaced, the external face of each flange opens and tubes connect and form a sterile connection therebetween.
    Type: Application
    Filed: January 8, 2016
    Publication date: September 20, 2018
    Applicant: METENOVA AB
    Inventor: Alf LOFVING
  • Publication number: 20160208927
    Abstract: A disposable device for the sterile transfer of fluids, such as liquids or gases, includes a body, a bore formed through at least a portion of the interior of the body, and a linearly moveable plunger contained within the bore. The body is formed from a rotating section and a stationary section. Partial rotation of the rotating section around a portion of the stationary section and the plunger drives the plunger linearly within the bore, opening and closing the device. The plunger includes at least a first and a second opening, and a fluid channel in the interior of the plunger connecting the first and second openings forming a fluid pathway to downstream components when the device is open. A termination component at one end of the plunger connects to a downstream component. A flange at one end of the body attaches to an upstream component.
    Type: Application
    Filed: March 28, 2016
    Publication date: July 21, 2016
    Inventors: Jeff Hartnett, Alf Lofving, Lars Hultquist, Jan Davidsson, Lennart Myhrberg
  • Patent number: 9027604
    Abstract: The present invention relates to sealing means made of a plastically deformable material for mechanical sealing of hollow hoses (2) of elastic material by means of an appliance having at least two jaws, at least one of which is movable towards and away from the other and which, when moving towards each other, crimp the sealing means against the hose (2) for contamination-tight sealing of the same, the sealing means (20) comprises at least one sealing member (4, 4?; 44, 44?; 64, 64?; 74, 74?; 84), which has two opposite ends and an opening (40, 40?) that extends between said ends to allow the at least one sealing member to be slipped onto the hose (2) to be sealed. The present invention also relates to a kit comprising a sealing means and an appliance for sealing of hollow hoses and to a method for mechanical sealing of hollow hoses.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: May 12, 2015
    Assignee: EMD Millipore Corporation
    Inventors: Alf Lofving, Jan Davidsson, Anders Karlsson
  • Patent number: 8690120
    Abstract: A disposable device for the sterile transfer of fluids, such as liquids or gases, includes a body, a bore formed through at least a portion of the interior of the body, and a linearly moveable plunger contained within the bore. The body is formed from a rotating section and a stationary section. Partial rotation of the rotating section around a portion of the stationary section and the plunger drives the plunger linearly within the bore, opening and closing the device. The plunger includes at least a first and a second opening, and a fluid channel in the interior of the plunger connecting the first and second openings forming a fluid pathway to downstream components when the device is open. A termination component at one end of the plunger connects to a downstream component. A flange at one end of the body attaches to an upstream component.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: April 8, 2014
    Assignee: EMD Millipore Corporation
    Inventors: Jeff Hartnett, Alf Lofving, Lars Hultquist, Jan Davidsson, Lennart Myhrberg
  • Publication number: 20110283502
    Abstract: The present invention relates to sealing means made of a plastically deformable material for mechanical sealing of hollow hoses (2) of elastic material by means of an appliance having at least two jaws, at least one of which is movable towards and away from the other and which, when moving towards each other, crimp the sealing means against the hose (2) for contamination-tight sealing of the same, the sealing means (20) comprises at least one sealing member (4, 4?; 44, 44?; 64, 64?; 74, 74?; 84), which has two opposite ends and an opening (40, 40?) that extends between said ends to allow the at least one sealing member to be slipped onto the hose (2) to be sealed. The present invention also relates to a kit comprising a sealing means and an appliance for sealing of hollow hoses and to a method for mechanical sealing of hollow hoses.
    Type: Application
    Filed: August 1, 2011
    Publication date: November 24, 2011
    Applicant: Millipore Corporation
    Inventors: Alf Lofving, Jan Davidsson, Anders Karlsson
  • Patent number: 8056583
    Abstract: The present invention relates to sealing means made of a plastically deformable material for mechanical sealing of hollow hoses (2) of elastic material by means of an appliance having at least two jaws, at least one of which is movable towards and away from the other and which, when moving towards each other, crimp the sealing means against the hose (2) for contamination-tight sealing of the same, the sealing means (20) comprises at least one sealing member (4, 4?; 44, 44?; 64, 64?; 74, 74?; 84), which has two opposite ends and an opening (40, 40?) that extends between said ends to allow the at least one sealing member to be slipped onto the hose (2) to be sealed. The present invention also relates to a kit comprising a sealing means and an appliance for sealing of hollow hoses and to a method for mechanical sealing of hollow hoses.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: November 15, 2011
    Assignee: Millipore Corporation
    Inventors: Alf Lofving, Jan Davidsson, Anders Karlsson
  • Publication number: 20100282350
    Abstract: The present invention relates to sealing means made of a plastically deformable material for mechanical sealing of hollow hoses (2) of elastic material by means of an appliance having at least two jaws, at least one of which is movable towards and away from the other and which, when moving towards each other, crimp the sealing means against the hose (2) for contamination-tight sealing of the same, the sealing means (20) comprises at least one sealing member (4, 4?; 44, 44?; 64, 64?; 74, 74?; 84), which has two opposite ends and an opening (40, 40?) that extends between said ends to allow the at least one sealing member to be slipped onto the hose (2) to be sealed. The present invention also relates to a kit comprising a sealing means and an appliance for sealing of hollow hoses and to a method for mechanical sealing of hollow hoses.
    Type: Application
    Filed: August 5, 2009
    Publication date: November 11, 2010
    Applicant: Millipore Corporation
    Inventors: Alf Lofving, Jan Davidsson, Anders Karlsson
  • Publication number: 20090229671
    Abstract: A disposable device for the sterile transfer of fluids, such as liquids or gases, includes a body, a bore formed through at least a portion of the interior of the body, and a linearly moveable plunger contained within the bore. The body is formed from a rotating section and a stationary section. Partial rotation of the rotating section around a portion of the stationary section and the plunger drives the plunger linearly within the bore, opening and closing the device. The plunger includes at least a first and a second opening, and a fluid channel in the interior of the plunger connecting the first and second openings forming a fluid pathway to downstream components when the device is open. A termination component at one end of the plunger connects to a downstream component. A flange at one end of the body attaches to an upstream component.
    Type: Application
    Filed: November 13, 2008
    Publication date: September 17, 2009
    Applicant: Millipore Corporation
    Inventors: Jeff Hartnett, Alf Lofving, Lars Hultquist, Jan Davidsson, Lennart Myhrberg
  • Publication number: 20070253287
    Abstract: A disposable unit (1) for processing products (2) has a thin-walled container (3) of a soft material for holding the products and a processing unit (6) inside the container to make the products move. The container is in its lower portion (4) reinforced with a support (5) of a dimensionally stable material, which support has a smooth surface (9) and supports the container over its lower portion so as to counteract the occurrence of folds and other irregularities in the lower portion and the impairment of an even process effect. The inside (10) of the support is substantially cup-shaped without corners to give the lower portion of the container an optimal geometry and, consequently, an optimal process effect.
    Type: Application
    Filed: March 16, 2007
    Publication date: November 1, 2007
    Inventors: Lennart Myhrberg, Alf Lofving