Patents by Inventor Gunnar Björkman

Gunnar Björkman 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: 11975931
    Abstract: The present invention relates to a method for moving a heavy object into a confined space. The method comprises providing the heavy object in an initial position, the heavy object having an underside resting on a ground surface and comprising an inducible gas-cushion arrangement which in its inactive state causes the underside of the heavy object to maintain contact with the ground surface; activating the inducible gas-cushion arrangement by forming a gas cushion between the underside of the heavy object and the ground surface, the gas cushion generating a lifting force causing the underside of the heavy object to lose contact with the ground surface; moving the heavy object relative to the confined space until the underside of the heavy object at least levels with the supporting surface of the confined space; and moving the heavy object into its final position utilizing the lifting force of the gas-cushion.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: May 7, 2024
    Assignee: Volvo Truck Corporation
    Inventors: Gunnar Björkman, Viktor Karlsson
  • Patent number: 11958531
    Abstract: The invention relates to a vehicle, comprising a chassis extending between the rear end and the front end of the vehicle, the chassis comprising two frame members having their main directions of extension along the longitudinal direction and being located on a respective side of a longitudinal geometrical centre axis of the chassis. Resilient elements, such as bushings, are provided on the chassis. A collision protection structure is located between said two frame members and is configured to absorb energy by becoming deformed when the chassis is subjected to a rearwardly directed impact force which is greater than a threshold force, wherein the collision protection structure is suspended from the chassis by said resilient elements so as to act as a mass damper under normal operating conditions.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: April 16, 2024
    Assignee: Volvo Truck Corporation
    Inventors: Erik Wikblom, Gunnar Björkman, Fredrik Fors
  • Publication number: 20230136543
    Abstract: The invention relates to a vehicle, comprising a chassis extending between the rear end and the front end of the vehicle, the chassis comprising two frame members having their main directions of extension along the longitudinal direction and being located on a respective side of a longitudinal geometrical centre axis of the chassis. Resilient elements, such as bushings, are provided on the chassis. A collision protection structure is located between said two frame members and is configured to absorb energy by becoming deformed when the chassis is subjected to a rearwardly directed impact force which is greater than a threshold force, wherein the collision protection structure is suspended from the chassis by said resilient elements so as to act as a mass damper under normal operating conditions.
    Type: Application
    Filed: March 23, 2020
    Publication date: May 4, 2023
    Inventors: Erik WIKBLOM, Gunnar BJÖRKMAN, Fredrik FORS
  • Publication number: 20220106124
    Abstract: The present invention relates to a method for moving a heavy object into a confined space. The method comprises providing the heavy object in an initial position, the heavy object having an underside resting on a ground surface and comprising an inducible gas-cushion arrangement which in its inactive state causes the underside of the heavy object to maintain contact with the ground surface; activating the inducible gas-cushion arrangement by forming a gas cushion between the underside of the heavy object and the ground surface, the gas cushion generating a lifting force causing the underside of the heavy object to lose contact with the ground surface; moving the heavy object relative to the confined space until the underside of the heavy object at least levels with the supporting surface of the confined space; and moving the heavy object into its final position utilizing the lifting force of the gas-cushion.
    Type: Application
    Filed: September 28, 2021
    Publication date: April 7, 2022
    Inventors: Gunnar Björkman, Viktor Karlsson
  • Publication number: 20220105815
    Abstract: The present invention relates to a wheelbase structure (configured to form at least a part of a vehicle main supporting structure by extending from a first axle to a second axle, the first and second axles being separated along a longitudinal direction. The wheelbase structure comprises an outer boundary forming an inner housing space for housing energy storage or transformation devices, wherein at least a portion of the outer boundary is formed by a sandwich structure comprising a plurality of layers of different material.
    Type: Application
    Filed: September 28, 2021
    Publication date: April 7, 2022
    Inventors: Gunnar Björkman, Viktor Karlsson
  • Patent number: 6415490
    Abstract: A portable power tool for mounting via press fit a machine part, like a pulley (37) onto a shaft (16) by the application of an axial press force on the pulley (37), comprises a housing (17), a reaction spindle (23) with a threaded end portion (34) for engaging a threaded bore (35) in the shaft (16), a push-carrier (44) axially movable by a motion converting device (40,41) rotationally powered by a standard type power wrench (10) via a planetary gearing (24) including a planet wheel carrier (28) connected to the output spindle (15) of the power wrench (10), a sun gear (26) on the reaction spindle (23) and a ring gear (29) connected to the motion converting device (40,41).
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: July 9, 2002
    Assignee: Atlas Copco Tools AB
    Inventors: James Caruso, Dennis Wells Szabo, Karl Gunnar Björkman