Patents by Inventor Lennart Wernersson

Lennart Wernersson 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).

  • Collapsible cardboard box
    Patent number: 8579184
    Abstract: A collapsible cardboard box including, in an erected state, a back wall, an opposing front wall, a first side wall and an opposing second side wall. In its collapsed state, the box includes a first through hole in the front portion and a second through hole in the back portion. In the collapsed state, the box has been unfolded in such a way that the first and second through holes are in line with each other forming a handle for allowing a person to carry the collapsed box by use of the first and second through holes.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: November 12, 2013
    Assignee: SCA Hygiene Products AB
    Inventors: Claes Pettersson, Kristian Grennfelt, Jan Kolehmainen, Lennart Wernersson, Marcus Hansson, Mateus Cander, Patrik Thonfors, Peter Andersson, Susanne Gungner
  • COLLAPSIBLE CARDBOARD BOX
    Publication number: 20120241509
    Abstract: A collapsible cardboard box including, in an erected state, a back wall, an opposing front wall, a first side wall and an opposing second side wall. In its collapsed state, the box includes a first through hole in the front portion and a second through hole in the back portion. In the collapsed state, the box has been unfolded in such a way that the first and second through holes are in line with each other forming a handle for allowing a person to carry the collapsed box by use of the first and second through holes.
    Type: Application
    Filed: October 22, 2009
    Publication date: September 27, 2012
    Inventors: Claes Pettersson, Kristian Grennfelt, Jan Kolehmainen, Lennart Wernersson, Marcus Hansson, Mateus Cander, Patrik Thonfors, Peter Andersson, Susanne Gungner
  • Method and a device for compensation of the consumption of reactive power by an industrial load
    Patent number: 6674267
    Abstract: An industrial load, preferably an electric arc furnace or a plant for rolling of metallic materials, is supplied from a three-phase electric ac network. A device for compensation of the reactive power consumption of the load comprises a first compensation device for controllable consumption of reactive power and a second compensation device for generation of reactive power, both connected to the electric power network in a parallel connection with the load. The first compensation device comprises a thyristor-controlled reactor for each of the phases of the ac network. Control equipment is supplied with measured values of sensed amplitude values for voltages and currents.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: January 6, 2004
    Assignee: ABB AB
    Inventor: Lennart Wernersson
  • Method and a device for compensation of the consumption of reactive power by an industrial load
    Publication number: 20030098672
    Abstract: An industrial load, preferably an electric arc furnace or a plant for rolling of metallic materials, is supplied from a three-phase electric ac network. A device for compensation of the reactive power consumption of the load comprises a first compensation device for controllable consumption of reactive power and a second compensation device for generation of reactive power, both connected to the electric power network in a parallel connection with the load. The first compensation device comprises a thyristor-controlled reactor for each of the phases of the ac network. Control equipment is supplied with measured values of sensed amplitude values for voltages and currents.
    Type: Application
    Filed: January 2, 2002
    Publication date: May 29, 2003
    Applicant: ABB AB
    Inventor: Lennart Wernersson