Patents by Inventor John Christopher Mitchell

John Christopher Mitchell 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: 20240083130
    Abstract: A dewatering system is described having an apparatus with an auger drive and a press container pulled away from a collection hopper in a first type of system. An integration of a press with an automated liquid solid separator using recirculation is a second type of system. An integration of a press with an automated liquid solid separator without recirculation and having drainage to a sewer is a third type of system. A conveyor system integration of press with an automated liquid solid separator with recirculation through use of a sump is a fourth type of system. A conveyor system integration of press with an automated liquid solid separator without recirculation and having drainage to a sewer is a fifth type of dewatering system disclosed herein.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 14, 2024
    Inventor: John Christopher Mitchell
  • Publication number: 20220080336
    Abstract: A liquid solid separator has a main container wherein a rotating filter belt receives influent for liquid sold mixture sieve processing. Various recirculation systems are proposed including an external pump sump, internal pump recirculation and dual pumps with one disposed externally in a sump and one internally in the lower basin of the container. Recirculation points include an inflow pipe connection, an influent basin connection located above the influent basin and influent basin connection located underneath the liquid solid mixture influent level.
    Type: Application
    Filed: November 25, 2021
    Publication date: March 17, 2022
    Inventor: John Christopher Mitchell
  • Publication number: 20220080338
    Abstract: A liquid solid separator has a main container wherein a rotating filter belt receives influent for liquid sold mixture sieve processing. A filtered water collections tank, a pressurized water supply are sources of wash water inputs. Cold and hot water pressurized water supplies are also potential supply sources. Load balancing of inputs and single and dual wash water pumps are also described.
    Type: Application
    Filed: November 26, 2021
    Publication date: March 17, 2022
    Inventor: John Christopher Mitchell
  • Patent number: 11213772
    Abstract: A liquid solid separator tank has a motor driven recirculating belt having rollers placed therein processing a mixture of materials. The top belt brings wet materials into a collection trough having overflow weirs disposed externally. These weirs permit overflow liquids to flow down towards a main tank; then, a sump pump reintroduces water back into an influent basin to cleanse the mixture once again. Also, the action of a motor driven auger within the trough forces solids towards a dewatering box attached externally thereto. This box has a motor driven rotating cage mounted on moveable rollers and internally attached removable brushes that act to clean the outer surface of the cage as it moves in addition to a stationary high pressure wash. A shroud channels the influent liquid solid mixture towards a filtered water basin disposed directly underneath the lower belt portion permitting cleansed water to be removed therefrom.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: January 4, 2022
    Inventors: John Christopher Mitchell, Michael Westley Anderson
  • Publication number: 20150060341
    Abstract: A liquid solid separator tank has a motor driven recirculating belt having rollers placed therein processing a mixture of materials. The top belt brings wet materials into a collection trough having overflow weirs disposed externally. These weirs permit overflow liquids to flow down towards a main tank; then, a sump pump reintroduces water back into an influent basin to cleanse the mixture once again. Also, the action of a motor driven auger within the trough forces solids towards a dewatering box attached externally thereto. This box has a motor driven rotating cage mounted on moveable rollers and internally attached removable brushes that act to clean the outer surface of the cage as it moves in addition to a stationary high pressure wash. A shroud channels the influent liquid solid mixture towards a filtered water basin disposed directly underneath the lower belt portion permitting cleansed water to be removed therefrom.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Inventor: John Christopher Mitchell
  • Publication number: 20130213904
    Abstract: An industrial separator and dewatering plant delivers an influent to an inclined rotating filter belt for filtering out solid matter from the influent. A wash water is sprayed on the return portion of the belt to dislodge residual solid matter captured within the belt. A dewatering portion has an auger screw positioned for receiving the solid matter and the wash water. The auger screw transports the wash water and the solid matter to a compression cage where water is driven out of the solid matter by compression as it exits the plant. Alternately, the solid matter and wash water may be delivered together to a plant exit. Excess wash water is able to drain from the auger screw through a separate drain.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 22, 2013
    Applicant: M2 RENEWABLES, INC.
    Inventors: John Christopher Mitchell, Ken M. Stedman, Glenn Edwin Walser
  • Patent number: 8302780
    Abstract: An industrial separator and dewatering plant has a filtering portion using an inclined conveyor belt for carrying away a watery cake from an aqueous mixture containing solid matter. The filtering portion further has a wash water spray nozzle directed at the conveyor belt so as to dislodge the watery cake penetrated within the conveyor belt. A dewatering portion has a compression auger screw positioned for receiving the dislodged watery cake and the wash water. An auger screw receives the wash water and cake which is transported to a compression cage where compression drives water out of the cake leaving a semi-solid cake which is pressed against a door where it exits the plant.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: November 6, 2012
    Assignee: M2 Renewables, Inc.
    Inventors: John Christopher Mitchell, Ken M. Stedman, Glenn Edwin Walser