Patents by Inventor Klaus Hjuler

Klaus Hjuler 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).

  • U-shaped seal and method for use in cement plants
    Patent number: 10935319
    Abstract: A method to thermally convert alternative fuels within a loop seal reactor by utilizing preheated/calcined cement meal as the heat source within which alternative fuels are immersed, subjected to drying, pyrolysis and subsequently charred, and an apparatus utilized to practice such method.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: March 2, 2021
    Inventors: Jesper Lebæk, Morten Drivsholm, Linda Kaare Nørskov, Henrik Wassard, Klaus Hjuler
  • U-Shaped Seal and Method for Use in Cement Plants
    Publication number: 20190024976
    Abstract: A method to thermally convert alternative fuels within a loop seal reactor by utilizing preheated/calcined cement meal as the heat source within which alternative fuels are immersed, subjected to drying, pyrolysis and subsequently charred, and an apparatus utilized to practice such method.
    Type: Application
    Filed: January 20, 2017
    Publication date: January 24, 2019
    Inventors: Jesper Lebæk, Morten Drivsholm, Linda Kaare Nørskov, Henrik Wassard, Klaus Hjuler
  • Gasification with separate calcination
    Patent number: 8377198
    Abstract: A method and an apparatus for manufacturing of cement includes cement raw meal being preheated in a preheater, calcined in a calciner by contact with hot gases which are introduced into the calciner via a gas inlet and being diverted from the calciner via a gas outlet, and where calcined cement raw meal is diverted from the calciner, burned into cement clinker in a kiln and subsequently cooled in a clinker cooler. At least a portion of the calcined cement raw meal diverted from the calciner is heated further in a separate system to a temperature which exceeds the calcination temperature and is subsequently recirculated to the calciner. That at least a portion of the gases which are diverted via the gas outlet of the calciner is removed from the plant with a view to storage underground or other additional treatment.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: February 19, 2013
    Assignee: FLSmidth A/S
    Inventor: Klaus Hjuler
  • Gasification with Separate Calcination
    Publication number: 20110073014
    Abstract: A method and an apparatus for manufacturing of cement includes cement raw meal being preheated in a preheater, calcined in a calciner by contact with hot gases which are introduced into the calciner via a gas inlet and being diverted from the calciner via a gas outlet, and where calcined cement raw meal is diverted from the calciner, burned into cement clinker in a kiln and subsequently cooled in a clinker cooler. At least a portion of the calcined cement raw meal diverted from the calciner is heated further in a separate system to a temperature which exceeds the calcination temperature and is subsequently recirculated to the calciner. That at least a portion of the gases which are diverted via the gas outlet of the calciner is removed from the plant with a view to storage underground or other additional treatment.
    Type: Application
    Filed: May 12, 2009
    Publication date: March 31, 2011
    Applicant: FLSMIDTH A/S
    Inventor: Klaus Hjuler