Patents by Inventor Claus Thulstrup

Claus Thulstrup 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: 12078416
    Abstract: Disclosed is a slurry drying plant (1) comprising a slurry extruder (3) including a slurry inlet (2) and conveying means (4) arranged to convey the slurry through the slurry extruder (3) and force the slurry out of a plurality of exit openings (5) of the slurry extruder (3) to form a plurality of slurry strings (7), wherein the slurry strings (7) are forced out into a drying chamber (8) in which the plurality of slurry strings (7) is dried. The slurry drying plant (1) further comprises slurry heating means (6) comprising flow means for passing superheated steam past the slurry strings (7) in the drying chamber (8), and inlet pressure detection means (9) for detecting a slurry inlet pressure at the slurry inlet (2). The slurry drying plant (1) also comprises control means (17) arranged to control the conveying speed of the conveying means (4) in response to the slurry inlet pressure. Furthermore, a method for drying slurry and use of a slurry drying plant (1) is disclosed.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: September 3, 2024
    Assignees: DANMARKS TEKNISKE UNIVERSITET, AQUAGREEN LICENSE APS
    Inventors: Jesper Ahrenfeldt, Ulrik Birk Henriksen, Tobias Pape Thomsen, Claus Thulstrup
  • Publication number: 20210396466
    Abstract: Disclosed is a slurry drying plant (1) comprising a slurry extruder (3) including a slurry inlet (2) and conveying means (4) arranged to convey the slurry through the slurry extruder (3) and force the slurry out of a plurality of exit openings (5) of the slurry extruder (3) to form a plurality of slurry strings (7), wherein the slurry strings (7) are forced out into a drying chamber (8) in which the plurality of slurry strings (7) is dried. The slurry drying plant (1) further comprises slurry heating means (6) comprising flow means for passing superheated steam past the slurry strings (7) in the drying chamber (8), and inlet pressure detection means (9) for detecting a slurry inlet pressure at the slurry inlet (2). The slurry drying plant (1) also comprises control means (17) arranged to control the conveying speed of the conveying means (4) in response to the slurry inlet pressure. Furthermore, a method for drying slurry and use of a slurry drying plant (1) is disclosed.
    Type: Application
    Filed: November 1, 2018
    Publication date: December 23, 2021
    Inventors: Jesper AHRENFELDT, Ulrik Birk HENRIKSEN, Tobias Pape THOMSEN, Claus THULSTRUP
  • Patent number: 11187458
    Abstract: Disclosed is a slurry drying plant (1) comprising a slurry inlet (2) for feeding slurry to the slurry drying plant (1) and two or more meshing screw conveyors (3, 4) arranged to at least partly divide the slurry while conveying the slurry in a transport direction from the slurry inlet (2) to a slurry outlet (5). The slurry drying plant (1) further includes slurry heating means (6) comprising means for passing superheated steam substantially at atmospheric pressure past the slurry and the two or more meshing screw conveyors (3, 4), while they are conveying the slurry. Furthermore, a method for drying slurry and use of a slurry drying plant (1) is disclosed.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: November 30, 2021
    Assignees: Danmarks Tekniske Universitet, AquaGreen License ApS
    Inventors: Jesper Ahrenfeldt, Ulrik Birk Henriksen, Claus Thulstrup
  • Publication number: 20190376742
    Abstract: Disclosed is a slurry drying plant (1) comprising a slurry inlet (2) for feeding slurry to the slurry drying plant (1) and two or more meshing screw conveyors (3, 4) arranged to at least partly divide the slurry while conveying the slurry in a transport direction from the slurry inlet (2) to a slurry outlet (5). The slurry drying plant (1) further includes slurry heating means (6) comprising means for passing superheated steam substantially at atmospheric pressure past the slurry and the two or more meshing screw conveyors (3, 4), while they are conveying the slurry. Furthermore, a method for drying slurry and use of a slurry drying plant (1) is disclosed.
    Type: Application
    Filed: February 9, 2018
    Publication date: December 12, 2019
    Applicants: Danmarks Tekniske Universitet, AquaGreen License ApS
    Inventors: Jesper Ahrenfeldt, Ulrik Birk Henriksen, Claus Thulstrup