Patents by Inventor Steve Farnworth

Steve Farnworth 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).

  • Pelletising process using starch
    Patent number: 11028025
    Abstract: A method for manufacturing a pelletised mineral product, the method comprising: in a first mixing step, forming a first mixture by mixing the evaporite mineral with non-gelatinised starch under conditions that are insufficient to substantially gelatinise the starch; in a second mixing step, forming a second mixture by mixing the first mixture under conditions that are sufficient to substantially gelatinise the starch comprised within the first mixture; and forming the second mixture into pellets.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: June 8, 2021
    Assignee: York Potash Ltd
    Inventors: Steve Farnworth, Mike Evans, Jim Evans
  • Dry powder processing
    Patent number: 10556842
    Abstract: A method for forming a pelletised evaporite mineral product, the method comprising: pulverising an evaporite mineral feedstock to form a dry powder, mixing the dry powder with a binder in the presence of a liquid to form an intermediate blend; and processing the intermediate blend using a pelletiser to form pellets principally composed of the evaporite mineral.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: February 11, 2020
    Assignee: YORK POTASH LTD
    Inventors: Steve Farnworth, Mike Evans, Jim Evans
  • DRY POWDER PROCESSING
    Publication number: 20190233346
    Abstract: A method for forming a pelletised evaporite mineral product, the method comprising: pulverising an evaporite mineral feedstock to form a dry powder, mixing the dry powder with a binder in the presence of a liquid to form an intermediate blend; and processing the intermediate blend using a pelletiser to form pellets principally composed of the evaporite mineral.
    Type: Application
    Filed: April 5, 2019
    Publication date: August 1, 2019
    Inventors: Steve Farnworth, Mike Evans, Jim Evans
  • Fertiliser product
    Patent number: 10349574
    Abstract: A fertilizer product in the form of pellets comprising: at least 80% by mass of an evaporite mineral powder having a mean grain size in the range from 50 to 400 pm; and a binder; the pellets having a compression strength greater than 2 kgf. A coated seed product comprising at least one plant seed and a coating adhered to the exterior of the plant seed, comprising an evaporite material.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: July 16, 2019
    Assignee: York Potash Ltd.
    Inventors: Steve Farnworth, Mike Evans, Jim Evans, Robert Meakin
  • Dry powder processing
    Patent number: 10252952
    Abstract: A method for forming a pelletized evaporite mineral product, the method comprising: pulverizing an evaporite mineral feedstock to form a dry powder; mixing the dry powder with a binder in the presence of a liquid to form an intermediate blend; and processing the intermediate blend using a pelletizer to form pellets principally composed of the evaporite mineral.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: April 9, 2019
    Assignee: SIRIUS MINERALS PLC
    Inventors: Steve Farnworth, Mike Evans, Jim Evans
  • Pelletising an evaporite mineral
    Patent number: 9856180
    Abstract: A method for forming a pelletized evaporite mineral product, the method comprising: forming a material comprising a liquid and at least 50% by mass of an evaporite mineral powder; and processing the material using a pan pelletizer to form pellets comprising the material, the pan pelletizer being configured so that the mean dwell time of the material in the pan of the pelletizer is in the range from 60 to 120 seconds and the mean diameter of the pellets formed by the pelletizer is in the range from 1 to 8 mm.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: January 2, 2018
    Assignee: Sirius Minerals PLC
    Inventors: Steve Farnworth, Mike Evans, Jim Evans
  • Pelletising Process Using Starch
    Publication number: 20170305805
    Abstract: A method for manufacturing a pelletised mineral product, the method comprising: in a first mixing step, forming a first mixture by mixing the evaporite mineral with non- gelatinised starch under conditions that are insufficient to substantially gelatinise the starch; in a second mixing step, forming a second mixture by mixing the first mixture under conditions that are sufficient to substantially gelatinise the starch comprised within the first mixture; and forming the second mixture into pellets.
    Type: Application
    Filed: August 27, 2015
    Publication date: October 26, 2017
    Inventors: Steve Farnworth, Mike Evans, Jim Evans
  • PELLETISING AN EVAPORITE MINERAL
    Publication number: 20170137333
    Abstract: A method for forming a pelletised evaporite mineral product, the method comprising: forming a material comprising a liquid and at least 50% by mass of an evaporite mineral powder; and processing the material using a pan pelletiser to form pellets comprising the material, the pan pelletiser being configured so that the mean dwell time of the material in the pan of the pelletiser is in the range from 60 to 120 seconds and the mean diameter of the pellets formed by the pelletiser is in the range from 1 to 8 mm.
    Type: Application
    Filed: June 1, 2015
    Publication date: May 18, 2017
    Inventors: Steve Farnworth, Mike Evans, Jim Evans
  • Dry Powder Processing
    Publication number: 20170129822
    Abstract: A method for forming a pelletised evaporite mineral product, the method comprising: pulverising an evaporite mineral feedstock to form a dry powder; mixing the dry powder with a binder in the presence of a liquid to form an intermediate blend; and processing the intermediate blend using a pelletiser to form pellets principally composed of the evaporite mineral.
    Type: Application
    Filed: June 1, 2015
    Publication date: May 11, 2017
    Inventors: Steve Farnworth, Mike Evans, Jim Evans
  • Fertiliser Product
    Publication number: 20170096376
    Abstract: A fertiliser product in the form of pellets comprising: at least 80% by mass of an evaporite mineral powder having a mean grain size in the range from 50 to 400 pm; and a binder; the pellets having a compression strength greater than 2 kgf. A coated seed product comprising at least one plant seed and a coating adhered to the exterior of the plant seed, comprising an evaporite material.
    Type: Application
    Filed: June 1, 2015
    Publication date: April 6, 2017
    Inventors: Steve Farnworth, Mike Evans, Jim Evans, Robert Meakin