Patents by Inventor Björn Lindblad

Björn Lindblad 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: 11965767
    Abstract: A guided wave radar level gauge adapted for mounting on a nozzle of a tank, including an attachment collar with an opening configured to be aligned with the nozzle and to be secured by means of an annular clamping device, and a transmission line probe attached to an exterior end of a probe connector. The GWR level gauge further comprises an annular sealing gasket fitted in the collar opening, the annular sealing gasket having a central opening through which the central probe connector extends, and a distancing sleeve arranged around the exterior end of the probe connector and having a radially protruding collar portion, wherein processing circuitry is configured to detect an impedance change caused by tank content or condensate which has passed through the central opening of the sealing gasket and collected in an annular space immediately surrounding the radially protruding collar portion.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: April 23, 2024
    Assignee: ROSEMOUNT TANK RADAR AB
    Inventors: Håkan Fredriksson, Björn Lindblad, Mikael Eriksson
  • Publication number: 20220196453
    Abstract: A guided wave radar level gauge adapted for mounting on a nozzle of a tank, including an attachment collar with an opening configured to be aligned with the nozzle and to be secured by means of an annular clamping device, and a transmission line probe attached to an exterior end of a probe connector. The GWR level gauge further comprises an annular sealing gasket fitted in the collar opening, the annular sealing gasket having a central opening through which the central probe connector extends, and a distancing sleeve arranged around the exterior end of the probe connector and having a radially protruding collar portion, wherein processing circuitry is configured to detect an impedance change caused by tank content or condensate which has passed through the central opening of the sealing gasket and collected in an annular space immediately surrounding the radially protruding collar portion.
    Type: Application
    Filed: April 23, 2019
    Publication date: June 23, 2022
    Inventors: Håkan Fredriksson, Björn Lindblad, Mikael Eriksson
  • Patent number: 10969265
    Abstract: A gauging instrument intended to be sealingly mounted on a nozzle of a tank, and comprising an attachment collar intended to mate with said nozzle so as to face the product in the tank, a dielectric filling member with a radially extending collar portion which abuts an outer rim of said attachment collar, and an annular spring element arranged between the outer rim the radially extending collar portion. One or several fastening elements are configured to secure the attachment collar to, and in mating relationship with, the nozzle, such that the radially extending collar portion is sandwiched between the outer rim of the attachment collar and the nozzle, and the annular spring element exerts a contact pressure on the collar portion against the nozzle to thereby ensure a process seal.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: April 6, 2021
    Assignee: ROSEMOUNT TANK RADAR AB
    Inventors: Håkan Fredriksson, Peter Elmberg, Björn Lindblad
  • Publication number: 20200116543
    Abstract: A gauging instrument intended to be sealingly mounted on a nozzle of a tank, and comprising an attachment collar intended to mate with said nozzle so as to face the product in the tank, a dielectric filling member with a radially extending collar portion which abuts an outer rim of said attachment collar, and an annular spring element arranged between the outer rim the radially extending collar portion. One or several fastening elements are configured to secure the attachment collar to, and in mating relationship with, the nozzle, such that the radially extending collar portion is sandwiched between the outer rim of the attachment collar and the nozzle, and the annular spring element exerts a contact pressure on the collar portion against the nozzle to thereby ensure a process seal.
    Type: Application
    Filed: October 11, 2018
    Publication date: April 16, 2020
    Inventors: Håkan Fredriksson, Peter Elmberg, Björn Lindblad