Patents by Inventor Duane Nelson

Duane Nelson 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: 20210039108
    Abstract: A mill includes a housing with a first end portion, a second end portion, and a lateral area disposed therebetween. The housing includes a raw material inlet, an air inlet, a recirculated material inlet, and a material outlet. An impeller is supported by the housing and includes a shaft disposed along the longitudinal axis of the housing, with a plurality of curved blades.
    Type: Application
    Filed: July 17, 2020
    Publication date: February 11, 2021
    Inventors: Duane Nelson, Gavin Watkins, Aleksander Marcin Chabros, Wyatt Kivela
  • Publication number: 20200238291
    Abstract: A mill includes a housing with a first end portion, a second end portion, and a lateral area disposed therebetween. The housing includes a raw material inlet, an air inlet, a recirculated material inlet, and a material outlet. An impeller is supported by the housing and includes a shaft disposed along the longitudinal axis of the housing, with a plurality of curved blades. A method for milling includes receiving a material of a first size range, introducing the material to an apparatus via a first inlet and introducing air into the apparatus via a second inlet. The method also includes agitating the material via an impeller, where the agitation reduces at least some of the material to a second size range by the time the material reaches an outlet of the apparatus. The processed material is delivered to subsequent processing operations.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 30, 2020
    Inventors: Gavin Watkins, Duane Nelson
  • Patent number: 10563283
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: February 18, 2020
    Assignee: Enviroleach Technologies Inc.
    Inventors: Duane Nelson, Steve Scott, Mohammad Doostmohammadi, Hanif Jafari
  • Patent number: 10526682
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: January 7, 2020
    Assignee: Enviroleach Technologies Inc.
    Inventors: Duane Nelson, Mohammad Doostmohammadi, Hanif Jafari, Ishwinder Singh Grewal
  • Patent number: 10512917
    Abstract: A mill includes a housing with a first end portion, a second end portion, and a lateral area disposed therebetween. The housing includes a raw material inlet, an air inlet, a recirculated material inlet, and a material outlet. An impeller is supported by the housing and includes a shaft disposed along the longitudinal axis of the housing, with a plurality of curved blades. A method for milling includes receiving a material of a first size range, introducing the material to an apparatus via a first inlet and introducing air into the apparatus via a second inlet. The method also includes agitating the material via an impeller, where the agitation reduces at least some of the material to a second size range by the time the material reaches an outlet of the apparatus. The processed material is delivered to subsequent processing operations.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: December 24, 2019
    Assignee: Mineworx Technologies Ltd.
    Inventors: Gavin Watkins, Duane Nelson
  • Publication number: 20190233917
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include phosphoric acid and an oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Inventors: Duane Nelson, Ishwinder Singh Grewal, Mohammad Doostmohammadi, Hanif Jafari
  • Patent number: 10351454
    Abstract: A mining apparatus and method of its use are disclosed. The apparatus includes a heavy metals separating subsystem and a water recycling subsystem. The heavy metals separating subsystem includes one or more classifying screens positioned to receive raw mining material classify materials to a pre-determined size, a slurry tank receiving water and the classified materials, forming a slurry, and a heavy metals concentrating assembly configured to receive the slurry and separate heavy metals from the slurry. The water recycling subsystem is positioned to receive the tailings and separate the tailings into recyclable water and solid waste. The water recycling system is configured to route the recycled water into the heavy metals separating subsystem for reuse.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: July 16, 2019
    Assignee: Mineworx Technologies Ltd.
    Inventor: Duane Nelson
  • Publication number: 20190017145
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Application
    Filed: June 1, 2018
    Publication date: January 17, 2019
    Inventors: Duane Nelson, Mohammad Doostmohammadi, Hanif Jafari, Ishwinder Singh Grewal
  • Patent number: 10124345
    Abstract: Methods of use of a portable mining apparatus in qualifying a mining site are disclosed. One method includes positioning a portable mining apparatus at a mining site, and providing raw mining material to the portable mining apparatus. The portable mining apparatus is configured to extract a classified material from the raw mining material. The method includes, based on success in extracting classified material, evaluating the feasibility of the mining site.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: November 13, 2018
    Assignee: Mineworx Technologies, Ltd.
    Inventors: Duane Nelson, James Anderson
  • Publication number: 20170369967
    Abstract: Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
    Type: Application
    Filed: June 23, 2017
    Publication date: December 28, 2017
    Inventors: Duane Nelson, Steve Scott, Mohammad Doostmohammadi, Hanif Jafari
  • Publication number: 20170259270
    Abstract: A mill includes a housing with a first end portion, a second end portion, and a lateral area disposed therebetween. The housing includes a raw material inlet, an air inlet, a recirculated material inlet, and a material outlet. An impeller is supported by the housing and includes a shaft disposed along the longitudinal axis of the housing, with a plurality of curved blades. A method for milling includes receiving a material of a first size range, introducing the material to an apparatus via a first inlet and introducing air into the apparatus via a second inlet. The method also includes agitating the material via an impeller, where the agitation reduces at least some of the material to a second size range by the time the material reaches an outlet of the apparatus. The processed material is delivered to subsequent processing operations.
    Type: Application
    Filed: March 8, 2016
    Publication date: September 14, 2017
    Inventors: Gavin Watkins, Duane Nelson
  • Patent number: 9090379
    Abstract: A pallet device for storing and shipping goods is disclosed. The pallet device may include a planar surface having a top and a bottom. The pallet device further may include cross braces having two openings extending therethrough and separated by a partition. The partition includes a row of slits that each extend along the depth of the cross brace. The lower surface of the cross brace also may include a row of slits that each extend along the width of the cross brace. The cross brace is secured to the bottom of the planar surface. The pallet device also includes a plurality of ribs that are each inserted into a slit of the partition as well as a slit of the lower surface of the cross brace.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: July 28, 2015
    Inventor: Duane Nelson
  • Publication number: 20150158032
    Abstract: Methods of use of a portable mining apparatus in qualifying a mining site are disclosed. One method includes positioning a portable mining apparatus at a mining site, and providing raw mining material to the portable mining apparatus. The portable mining apparatus is configured to extract a classified material from the raw mining material. The method includes, based on success in extracting classified material, evaluating the feasibility of the mining site.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 11, 2015
    Applicant: FNMC ENVIRONMENTAL INC.
    Inventors: DUANE NELSON, JAMES ANDERSON
  • Publication number: 20140339173
    Abstract: A mining apparatus and method of its use are disclosed. The apparatus includes a heavy metals separating subsystem and a water recycling subsystem. The heavy metals separating subsystem includes one or more classifying screens positioned to receive raw mining material classify materials to a pre-determined size, a slurry tank receiving water and the classified materials, forming a slurry, and a heavy metals concentrating assembly configured to receive the slurry and separate heavy metals from the slurry. The water recycling subsystem is positioned to receive the tailings and separate the tailings into recyclable water and solid waste. The water recycling system is configured to route the recycled water into the heavy metals separating subsystem for reuse.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 20, 2014
    Inventor: DUANE NELSON
  • Publication number: 20140130720
    Abstract: A pallet device for storing and shipping goods is disclosed. The pallet device may include a planar surface having a top and a bottom. The pallet device further may include cross braces having two openings extending therethrough and separated by a partition. The partition includes a row of slits that each extend along the depth of the cross brace. The lower surface of the cross brace also may include a row of slits that each extend along the width of the cross brace. The cross brace is secured to the bottom of the planar surface. The pallet device also includes a plurality of ribs that are each inserted into a slit of the partition as well as a slit of the lower surface of the cross brace.
    Type: Application
    Filed: January 21, 2014
    Publication date: May 15, 2014
    Inventor: DUANE NELSON
  • Publication number: 20060236899
    Abstract: A corrugated paper pallet formed from stringers, a top sheet and a bottom sheet. Each stringer is formed from an identical blank which is die cut to form four flaps. Four fold lines are impressed into the corrugated and the blank folded to form a rectangular box section with a double layer on one side. The flaps are folded to close off sections of the box sections and form openings through which lines may be passed. Top and bottom are adhered to parallel stringers.
    Type: Application
    Filed: April 20, 2006
    Publication date: October 26, 2006
    Inventor: Duane Nelson
  • Patent number: 7000549
    Abstract: A shipping pallet compatible with fork-lifts and pallet-trucks is made from stamped or die cut flat corrugated board. Stringer and cross-braces from an interlocking grid work to which a top and bottom flat sheet are attached by an adhesive. The pallet may be recycled as paper and not returned to the sender. Additional reinforcement structures may be added for heavier loads.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: February 21, 2006
    Inventor: Duane Nelson
  • Publication number: 20050247240
    Abstract: A shipping pallet compatible with fork-lifts and pallet-trucks is made from stamped or die cut flat corrugated board. Stringer and cross-braces form an interlocking grid work to which a top and bottom flat sheet are attached by an adhesive. The pallet may be recycled as paper and not returned to the sender. Additional reinforcement structures may be added for heavier loads.
    Type: Application
    Filed: May 4, 2004
    Publication date: November 10, 2005
    Inventor: Duane Nelson