Patents by Inventor James Gary Davidson

James Gary Davidson 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: 10486105
    Abstract: A flow-through solid catalyst formed by coating a zeolite material on a metal or ceramic solid substrate. In some embodiments, the solid substrate is formed as flat plates, corrugated plates, or honeycomb blocks.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: November 26, 2019
    Assignee: 3D Clean Coal Emissions Stack, LLC
    Inventors: James Gary Davidson, Dave Hendrickson
  • Publication number: 20190076783
    Abstract: A flow-through solid catalyst formed by coating a zeolite material on a metal or ceramic solid substrate. In some embodiments, the solid substrate is formed as flat plates, corrugated plates, or honeycomb blocks.
    Type: Application
    Filed: November 12, 2018
    Publication date: March 14, 2019
    Inventors: James Gary Davidson, Dave Hendrickson
  • Patent number: 9919269
    Abstract: A method and apparatus for cleaning and recycling stack gas from coal-fired power plants, from natural or propane burning heating plants, or from cement kilns by using renewable catalysts of zeolite to separate pollutants into recyclable and reusable materials. The method reduces from the stack gas carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxide (NOx), sulfur oxide (SOx) as well as halogens such as chloride and fluorides and trace metals particularly, mercury, lead, and zinc.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: March 20, 2018
    Assignee: 3D Clean Coal Emissions Stack LLC
    Inventor: James Gary Davidson
  • Patent number: 9737849
    Abstract: A method and apparatus for cleaning and recycling stack gas from coal-fired power plants, from natural or propane burning heating plants, or from cement kilns by using renewable catalysts of zeolite to separate pollutants into recyclable and reusable materials. The method reduces from the stack gas carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxide (NOx), sulfur oxide (SOx) as well as halogens such as chloride and fluorides and trace metals particularly, mercury, lead, and zinc. The method and apparatus also result in production of fertilizer products by purging with gaseous or liquid nitrogen the zeolite beds through which the stack gas flows. The oxygen generated may be recycled to the burners in the plant.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: August 22, 2017
    Assignee: 3 D Clean Coal Emissions Stack, LLC
    Inventor: James Gary Davidson
  • Publication number: 20160199780
    Abstract: A method and apparatus for cleaning and recycling stack gas from coal-fired power plants, from natural or propane burning heating plants, or from cement kilns by using renewable catalysts of zeolite to separate pollutants into recyclable and reusable materials. The method reduces from the stack gas carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxide (NOx), sulfur oxide (SOx) as well as halogens such as chloride and fluorides and trace metals particularly, mercury, lead, and zinc.
    Type: Application
    Filed: March 11, 2016
    Publication date: July 14, 2016
    Inventor: James Gary DAVIDSON
  • Publication number: 20150258493
    Abstract: A method and apparatus for cleaning and recycling stack gas from coal-fired power plants, from natural or propane burning heating plants, or from cement kilns by using renewable catalysts of zeolite to separate pollutants into recyclable and reusable materials. The method reduces from the stack gas carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxide (NOx), sulfur oxide (SOx) as well as halogens such as chloride and fluorides and trace metals particularly, mercury, lead, and zinc. The method and apparatus also result in production of fertilizer products by purging with gaseous or liquid nitrogen the zeolite beds through which the stack gas flows. The oxygen generated may be recycled to the burners in the plant.
    Type: Application
    Filed: May 27, 2015
    Publication date: September 17, 2015
    Inventor: James Gary DAVIDSON
  • Patent number: 9067837
    Abstract: A method and apparatus for cleaning and recycling stack gas from coal-fired power plants, from natural or propane burning heating plants, or from cement kilns by using renewable catalysts of zeolite to separate pollutants into recyclable and reusable materials. The method reduces from the stack gas carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxide (NOx), sulfur oxide (SOx) as well as halogens such as chloride and fluorides and trace metals particularly, mercury, lead, and zinc. Bauxite compounds can also be separately collected if desired. The method and apparatus also result in production of fertilizer products by purging with gaseous or liquid nitrogen the zeolite beds through which the stack gas flows. The oxygen split in the beds may be recycled to the burners in the plant.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 30, 2015
    Assignee: Three D Stack, LLC
    Inventor: James Gary Davidson
  • Publication number: 20140260471
    Abstract: A method and apparatus for cleaning carbon oxides, sulfur oxides and nitrogen oxides, from stack gas, from combustion of coal, combustion of natural gas or propane, or from a cement kiln by reaction using calcium zeolite and sodium zeolite catalysts. The method also includes cleaning the catalytic beds with nitrogen to remove the collected reactants and recover a fertilizer product and the catalysts for reusable.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: THREE D STACK, LLC
    Inventor: James Gary DAVIDSON
  • Publication number: 20140260472
    Abstract: A method and apparatus for cleaning and recycling stack gas from coal-fired power plants, from natural or propane burning heating plants, or from cement kilns by using renewable catalysts of zeolite to separate pollutants into recyclable and reusable materials. The method reduces from the stack gas carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxide (NOx), sulfur oxide (SOx) as well as halogens such as chloride and fluorides and trace metals particularly, mercury, lead, and zinc. Bauxite compounds can also be separately collected if desired. The method and apparatus also result in production of fertilizer products by purging with gaseous or liquid nitrogen the zeolite beds through which the stack gas flows. The oxygen split in the beds may be recycled to the burners in the plant.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: THREE D STACK, LLC
    Inventor: James Gary DAVIDSON
  • Patent number: 8821818
    Abstract: A method and apparatus for cleaning carbon oxides, sulfur oxides and nitrogen oxides, from stack gas, from combustion of coal, combustion of natural gas or propane, or from a cement kiln by reaction using calcium zeolite and sodium zeolite catalysts. The method also includes cleaning the catalytic beds with nitrogen to remove the collected reactants and recover a fertilizer product and the catalysts for reusable.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 2, 2014
    Assignee: Three D Stack, LLC
    Inventor: James Gary Davidson