Patents by Inventor Nathan Ashcraft

Nathan Ashcraft 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: 9919938
    Abstract: The invention is directed to systems and methods of removing particulate matter from a fluid, comprising: pre-activating the particulate matter to form a pre-activated particulate matter; providing an activating material capable of being affixed to the pre-activated particulate matter; affixing the activating material to the pre-activated particulate matter to form an activated particle; providing an anchor particle and providing a tethering material capable of being affixed to the anchoring particle; and attaching the tethering material to the anchor particle and the activated particle to form a removable complex in the fluid that comprises the particulate matter, wherein the particulate matter is derived from a mining operation.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: March 20, 2018
    Assignee: Soane Mining, LLC
    Inventors: David S. Soane, Nathan Ashcraft, Phyo Kyaw
  • Patent number: 9555418
    Abstract: Disclosed herein are systems and methods for recovering a target material from an aqueous stream. The target material can be a natively hydrophobic target material, such as a hydrocarbon material, such as coal. The target material can also have a surface modification that renders it hydrophobic. Systems for recovering the target material can comprise an extractant formulation comprising a light hydrocarbon solvent and a high molecular weight hydrophobic polymer, wherein the extractant formulation is mixable with the aqueous stream in a mixer to form an admixed solution having a hydrophobic portion and an aqueous portion, with the target material partitioning to the hydrophobic portion; a separator for isolating the hydrophobic portion from the aqueous portion; and a collector to which the hydrophobic portion is directed, wherein the target material is recovered from the hydrophobic portion.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: January 31, 2017
    Assignee: Soane Mining, LLC
    Inventors: David S. Soane, Nathan Ashcraft, Phyo Kyaw, Audrey Heidt
  • Patent number: 9493367
    Abstract: Disclosed herein are systems for removing particulate matter from a fluid, comprising a particle functionalized by attachment of at least one activating group or amine functional group, wherein the modified particle complexes with the particulate matter within the fluid to form a removable complex therein. The particulate matter has preferably been contacted, complexed or reacted with a tethering agent. The system is particularly advantageous to removing particulate matter from a fluid waste stream following mining or ore processing operations.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 15, 2016
    Assignee: Soane Mining, LLC
    Inventors: David S. Soane, William Ware, Jr., Robert P. Mahoney, Nathan Ashcraft
  • Publication number: 20150096939
    Abstract: Systems and methods are presented for removing an ionic material from a fluid using a capture polymer that sequesters the ionic material and an anchor particle bearing a tethering polymer. The tethering polymer complexes with the capture polymer after the capture polymer has sequestered the ionic material, thereby affixing a complex of capture polymer and ionic material to the anchor particle to form a removable complex. The removable material can be segregated from the fluid via a removal system, thereby removing the ionic material from the fluid.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 9, 2015
    Inventors: David S. Soane, Nathan Ashcraft
  • Publication number: 20140377166
    Abstract: Disclosed are methods of removing particulate matter from a wastewater stream, comprising providing an activating agent capable of being affixed to the particulate matter in the wastewater stream; affixing the activating agent to the particulate matter to form activated particles residing in the wastewater stream; processing the activated particles in a thickener device to produce a population of thickened flocs in the fluid stream, wherein the thickened flocs comprise the particulate matter; contacting the thickened flocs with a re-activating agent to form re-activated particles comprising the particulate matter; providing a population of tether-bearing anchor particles, wherein the tether-bearing anchor particles have an affinity for the re-activated particles; attaching the tether-bearing anchor particles to the re-activated particles to form removable complexes that comprise the particulate matter, and removing the removable complexes, thereby removing the particulate matter from the wastewater stream.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 25, 2014
    Inventors: David S. Soane, Nathan Ashcraft, Manuel Esquivel
  • Patent number: 8894863
    Abstract: Systems and methods are presented for removing an ionic material from a fluid using a capture polymer that sequesters the ionic material and an anchor particle bearing a tethering polymer. The tethering polymer complexes with the capture polymer after the capture polymer has sequestered the ionic material, thereby affixing a complex of capture polymer and ionic material to the anchor particle to form a removable complex. The removable material can be segregated from the fluid via a removal system, thereby removing the ionic material from the fluid.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: November 25, 2014
    Assignee: Soane Mining, LLC
    Inventors: David S. Soane, Nathan Ashcraft
  • Patent number: 8821733
    Abstract: The present invention provides compositions, systems and methods for using coal from coal processing sources to remove coal fines from a mixture and form a coal-on-coal composite particle.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: September 2, 2014
    Assignee: Soane Mining, LLC
    Inventors: David Soane, Nathan Ashcraft
  • Publication number: 20130336877
    Abstract: Disclosed are systems and methods of removing particulate matter from a fluid, comprising: pre-activating the particulate matter to form a pre-activated particulate matter; providing an activating material capable of being affixed to the pre-activated particulate matter; affixing the activating material to the pre-activated particulate matter to form an activated particle; providing an anchor particle and providing a tethering material capable of being affixed to the anchoring particle; and attaching the tethering material to the anchor particle and the activated particle to form a removable complex in the fluid that comprises the particulate matter, wherein the particulate matter is derived from a mining operation.
    Type: Application
    Filed: March 7, 2013
    Publication date: December 19, 2013
    Inventors: David S. Soane, Nathan Ashcraft, Phyo Kyaw
  • Publication number: 20130134074
    Abstract: Disclosed herein are systems and methods for recovering a target material from an aqueous stream. The target material can be a natively hydrophobic target material, such as a hydrocarbon material, such as coal. The target material can also have a surface modification that renders it hydrophobic. Systems for recovering the target material can comprise an extractant formulation comprising a light hydrocarbon solvent and a high molecular weight hydrophobic polymer, wherein the extractant formulation is mixable with the aqueous stream in a mixer to form an admixed solution having a hydrophobic portion and an aqueous portion, with the target material partitioning to the hydrophobic portion; a separator for isolating the hydrophobic portion from the aqueous portion; and a collector to which the hydrophobic portion is directed, wherein the target material is recovered from the hydrophobic portion.
    Type: Application
    Filed: May 24, 2012
    Publication date: May 30, 2013
    Inventors: David S. Soane, Nathan Ashcraft, Audrey Heidt
  • Patent number: 8349188
    Abstract: Disclosed herein are systems for removing particulate matter from a fluid, comprising a particle functionalized by attachment of at least one activating group or amine functional group, wherein the modified particle complexes with the particulate matter within the fluid to form a removable complex therein. The particulate matter has preferably been contacted, complexed or reacted with a tethering agent. The system is particularly advantageous to removing particulate matter from a fluid waste stream following mining or ore processing operations.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: January 8, 2013
    Assignee: Soane Mining, LLC
    Inventors: David Soane, William Ware, Jr., Robert P. Mahoney, Nathan Ashcraft
  • Publication number: 20120061321
    Abstract: Systems and methods are presented for removing an ionic material from a fluid using a capture polymer that sequesters the ionic material and an anchor particle bearing a tethering polymer. The tethering polymer complexes with the capture polymer after the capture polymer has sequestered the ionic material, thereby affixing a complex of capture polymer and ionic material to the anchor particle to form a removable complex. The removable material can be segregated from the fluid via a removal system, thereby removing the ionic material from the fluid.
    Type: Application
    Filed: March 17, 2011
    Publication date: March 15, 2012
    Inventors: David S. Soane, Nathan Ashcraft
  • Publication number: 20120029120
    Abstract: Disclosed are methods of removing particulate matter from potash tailings fluid. The invention includes providing an activating material capable of being affixed to the particulate matter, affixing the activating material to the particulate matter to form an activated particle, providing an anchor particle and providing a tethering material capable of being affixed to the anchor particle; and attaching the tethering material to the anchor particle and the activated particle to form a removable complex in the potash tailings fluid.
    Type: Application
    Filed: July 26, 2011
    Publication date: February 2, 2012
    Inventors: David S. Soane, Nathan Ashcraft, Phyo Nyi Nyi Kyaw
  • Publication number: 20110252701
    Abstract: The present invention provides compositions, systems and methods for using coal from coal processing sources to remove coal fines from a mixture and form a coal-on-coal composite particle.
    Type: Application
    Filed: October 20, 2010
    Publication date: October 20, 2011
    Inventors: David Soane, Nathan Ashcraft
  • Publication number: 20110131873
    Abstract: Disclosed herein are systems for removing particulate matter from a fluid, comprising a particle functionalized by attachment of at least one activating group or amine functional group, wherein the modified particle complexes with the particulate matter within the fluid to form a removable complex therein. The particulate matter has preferably been contacted, complexed or reacted with a tethering agent. The system is particularly advantageous to removing particulate matter from a fluid waste stream following mining or ore processing operations.
    Type: Application
    Filed: June 2, 2010
    Publication date: June 9, 2011
    Inventors: David Soane, William Ware, JR., Robert P. Mahoney, Nathan Ashcraft