Patents by Inventor Stefan Ekstrand

Stefan Ekstrand 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).

  • Publication number: 20240316521
    Abstract: The present invention relates to a system (1) and method (100) for drying a residual product (12) from a foodstuff production process, the residual product containing between 20-50% dry substance. The method comprises the steps of producing a main foodstuff product (4) in the foodstuff production process (2); receiving the residual product continuously from the foodstuff production process; supplying the residual product to a mixer (30); supplying the mixed product (31) to a fluidized bed (40); supplying heated air (57) of between 60-150 degrees C. to the fluidized bed; drying the mixed product in the fluidized bed using the supplied heated air by shaking the mixed product; cooling the dried product; and extracting the dried product (42) from the fluidized bed, wherein a portion (62) of the dried product is supplied to the mixer to be mixed with received residual product (12).
    Type: Application
    Filed: January 24, 2022
    Publication date: September 26, 2024
    Inventors: Stefan Ekstrand, Robert RÃ¥hlin
  • Patent number: 10865131
    Abstract: A method and an arrangement for processing sludge into sludge residue having a targeted dry solid concentration is provided. The method comprises a step of distributing (110) provided sludge for continuous transport in a specific form factor; cooling (120) the distributed sludge into a frozen state using a refrigerating medium; thawing (140) the frozen sludge using a first heating medium; drying (150) the thawed sludge to a targeted dry solid concentration, wherein at least one aspect of the method is controlled by a processing parameter, the method further comprising the step of monitoring (160) at least one processing parameter, and adjusting (170) at least one processing parameter with respect to a corresponding reference value based on said at least one sludge characteristic or user input to improve sludge processing.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: December 15, 2020
    Assignee: Elajo Technology Solutions AB
    Inventor: Stefan Ekstrand
  • Publication number: 20200010350
    Abstract: A method and an arrangement for processing sludge into sludge residue having a targeted dry solid concentration is provided. The method comprises a step of distributing (110) provided sludge for continuous transport in a specific form factor; cooling (120) the distributed sludge into a frozen state using a refrigerating medium; thawing (140) the frozen sludge using a first heating medium; drying (150) the thawed sludge to a targeted dry solid concentration, wherein at least one aspect of the method is controlled by a processing parameter, the method further comprising the step of monitoring (160) at least one processing parameter, and adjusting (170) at least one processing parameter with respect to a corresponding reference value based on said at least one sludge characteristic or user input to improve sludge processing.
    Type: Application
    Filed: August 14, 2018
    Publication date: January 9, 2020
    Inventor: Stefan Ekstrand