Patents by Inventor Arvid GRAHN

Arvid GRAHN 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: 11731670
    Abstract: The present invention relates to a holder for mounting a second part on a main structure between car body ends of a rail vehicle, comprising —a first holding structure having a first contact surface, the first holding structure being configured to be attached to a main structure; —a second holding structure having a second contact surface, the second holding structure being configured to be attached to a second part, and the second holding structure further being arranged to be mounted on the first holding structure with one of the first and second contact surfaces resting on the other; —a fastening device for fastening the second holding structure to the first holding structure to form a mounted state, the first and second contact surfaces being pressed against each other in the mounted state, and wherein the first and second contact surfaces in the mounted state each extend at a first angle in relation to a horizontal axis, said first angle (?) being more than 1 degree and less than 30 degrees, and wherein
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: August 22, 2023
    Assignee: DELLNER COUPLERS AB
    Inventors: Arvid Grahn, Fredrik Harrysson
  • Patent number: 11459004
    Abstract: The invention relates to an energy dissipating device suitable to be used as part of a connection device that connects a first car of a multi-car vehicle with a second car of the multi-car vehicle, comprising a plug that has a longitudinal axis and a mandrel that has an opening, whereby the plug is arranged to be moved at least partially through the opening, if a force pointing in the longitudinal axis is applied to the plug, and whereby at least a part of the plug—especially its hull—is deformed, when the plug is at least partially moved through the opening, whereby said hull being at least partially deformed, when the plug is at least partially moved through the opening. The hull is attached to the rod by clamping or fixing with fasteners, preferably with protrusions around the rod and/or at least one plug or nut.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: October 4, 2022
    Assignee: Dellner Couplers AB
    Inventor: Arvid Grahn
  • Publication number: 20210139058
    Abstract: The invention relates to an energy dissipating device suitable to be used as part of a connection device that connects a first car of a multi-car vehicle with a second car of the multi-car vehicle, comprising a plug that has a longitudinal axis and a mandrel that has an opening, whereby the plug is arranged to be moved at least partially through the opening, if a force pointing in the longitudinal axis is applied to the plug, and whereby at least a part of the plug—especially its hull—is deformed, when the plug is at least partially moved through the opening, whereby said hull being at least partially deformed, when the plug is at least partially moved through the opening. The hull is attached to the rod by clamping or fixing with fasteners, preferably with protrusions around the rod and/or at least one plug or nut.
    Type: Application
    Filed: March 1, 2018
    Publication date: May 13, 2021
    Inventor: Arvid Grahn
  • Patent number: 10882542
    Abstract: An energy dissipating device includes a guide defining a guide surface having a curved cross-section. A deformer is slideably supported by the guide surface of the guide in a compression stroke direction of the device. A stopper is fixedly attached to the device and arranged at a distance from the deformer in the compression stroke direction. An energy dissipating member is arranged between the stopper and the deformer in the compression stroke direction, and includes a first end configured to engage with the stopper and a second end configured to engage with the deformer in response to a force thereon in the compression stroke direction.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: January 5, 2021
    Assignee: Dellner Couplers AB
    Inventors: Arvid Grahn, Anders Westman
  • Publication number: 20200255040
    Abstract: The present invention relates to a holder for mounting a second part on a main structure between car body ends of a rail vehicle, comprising —a first holding structure having a first contact surface, the first holding structure being configured to be attached to a main structure; —a second holding structure having a second contact surface, the second holding structure being configured to be attached to a second part, and the second holding structure further being arranged to be mounted on the first holding structure with one of the first and second contact surfaces resting on the other; —a fastening device for fastening the second holding structure to the first holding structure to form a mounted state, the first and second contact surfaces being pressed against each other in the mounted state, and wherein the first and second contact surfaces in the mounted state each extend at a first angle in relation to a horizontal axis, said first angle (?) being more than 1 degree and less than 30 degrees, and wherein
    Type: Application
    Filed: September 4, 2018
    Publication date: August 13, 2020
    Inventors: Arvid GRAHN, Fredrik HARRYSSON
  • Publication number: 20170197641
    Abstract: An energy dissipating device includes a guide defining a guide surface having a curved cross-section. A deformer is slideably supported by the guide surface of the guide in a compression stroke direction of the device. A stopper is fixedly attached to the device and arranged at a distance from the deformer in the compression stroke direction. An energy dissipating member is arranged between the stopper and the deformer in the compression stroke direction, and includes a first end configured to engage with the stopper and a second end configured to engage with the deformer in response to a force thereon in the compression stroke direction.
    Type: Application
    Filed: May 27, 2015
    Publication date: July 13, 2017
    Applicant: Dellner Couplers AB
    Inventors: Arvid GRAHN, Anders WESTMAN