Patents by Inventor Niels Agerlund Christensen

Niels Agerlund Christensen 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: 8695515
    Abstract: A method for burning raw materials by which method the raw material and a secondary fuel are separately introduced to one and the same rotary kiln in which the raw material as well as the secondary fuel are heated by gases formed by burning of a primary fuel in the rotary kiln so that the secondary fuel is converted to gases and solid matter in the form of combustion residues such as ashes and coke. The secondary fuel during the process of conversion to gases and solid matter is kept separate from the introduced raw material, which may ensure that the secondary fuel and hence the locally reducing zones and major areas with reducing conditions are brought into minimum contact with the raw material.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: April 15, 2014
    Assignee: FLSmidth A/S
    Inventors: Lars Skaarup Jensen, Niels Agerlund Christensen, Morten Boberg Larsen
  • Publication number: 20130095444
    Abstract: A description is given of a heat treatment apparatus, such as a preheater or calciner (1) for heat treating cement raw materials, said heat treatment apparatus comprising a heat treatment compartment being defined by a metal casing (5), which may have on its inner side layers of refractory lining material (3) and insulation material (4).
    Type: Application
    Filed: June 22, 2011
    Publication date: April 18, 2013
    Applicant: FLSMIDTH A/S
    Inventors: Niels Agerlund Christensen, Lars Skaarup Jensen, Karl Emil Andreas Strömberg
  • Publication number: 20120009530
    Abstract: A method for burning raw materials by which method the raw material and a secondary fuel are separately introduced to one and the same rotary kiln in which the raw material as well as the secondary fuel are heated by gases formed by burning of a primary fuel in the rotary kiln so that the secondary fuel is converted to gases and solid matter in the form of combustion residues such as ashes and coke. The secondary fuel during the process of conversion to gases and solid matter is kept separate from the introduced raw material, which may ensure that the secondary fuel and hence the locally reducing zones and major areas with reducing conditions are brought into minimum contact with the raw material.
    Type: Application
    Filed: September 2, 2009
    Publication date: January 12, 2012
    Applicant: FLSMIDTH A/S
    Inventors: Lars Skaarup Jensen, Niels Agerlund Christensen, Morten Boberg Larsen