Patents by Inventor David Ernest Richardson

David Ernest Richardson 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: 10307497
    Abstract: A disinfectant appliance has a plurality of chlorite absorbent particles, a plurality of redox resin particles, and at least one absorbent material combined such that the absorbent material allows and can promote: infusion of water into the disinfectant appliance; release of the chlorite from the chlorite absorbent particles into the water to form a chlorite comprising solution; contacting of the chlorite comprising solution with the redox resin particles; and the expulsion of ClO2 comprising solution from the disinfectant appliance onto a surface to be disinfected. The disinfectant appliance can include a storage section and can include a handle. The disinfectant appliance can be in the form of a wipe or sponge that can be contacted with a surface suspected of being infected.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: June 4, 2019
    Assignee: University of Florida Research Foundation, Inc.
    Inventor: David Ernest Richardson
  • Patent number: 9815051
    Abstract: A method of preparing a trihalide resin, where a trihalide ion solution is contacted with a styrene divinylbenzene polymer resin having polymer bonded -ER3+ X? groups where E is N, P, or As, R is a C2-C6 hydrocarbon group and X is Cl, Br, or I. The trihalide ion can be Cl3?, Br3?, or I3?. The trichloride resin can be used as a solid equivalent of chlorine gas. Formation of the styrene divinylbenzene resin comprising -ER3+Cl? units can be used to scavenge chlorine from a gas or liquid to form the styrene divinylbenzene resin comprising -ER3+Cl3? units. The trihalide resins can be used in disinfecting and as a source of a reagent for chemical synthesis.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: November 14, 2017
    Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventor: David Ernest Richardson
  • Publication number: 20170119916
    Abstract: A disinfectant appliance has a plurality of chlorite absorbent particles, a plurality of redox resin particles, and at least one absorbent material combined such that the absorbent material allows and can promote: infusion of water into the disinfectant appliance; release of the chlorite from the chlorite absorbent particles into the water to form a chlorite comprising solution; contacting of the chlorite comprising solution with the redox resin particles; and the expulsion of ClO2 comprising solution from the disinfectant appliance onto a surface to be disinfected. The disinfectant appliance can include a storage section and can include a handle. The disinfectant appliance can be in the form of a wipe or sponge that can be contacted with a surface suspected of being infected.
    Type: Application
    Filed: June 11, 2015
    Publication date: May 4, 2017
    Inventor: David Ernest Richardson
  • Publication number: 20160325275
    Abstract: A method of preparing a trihalide resin, where a trihalide ion solution is contacted with a styrene divinylbenzene polymer resin having polymer bonded -ER3+X? groups where E is N, P, or As, R is a hydrocarbon group and X is Cl, Br, or I. The trihalide ion can be Br3? or I3?.
    Type: Application
    Filed: July 15, 2016
    Publication date: November 10, 2016
    Inventor: David Ernest Richardson
  • Patent number: 9393558
    Abstract: A method of preparing a trihalide resin, where a trihalide ion solution is contacted with a styrene divinylbenzene polymer resin having polymer bonded -ER3+X? groups where E is N, P, or As, R is a hydrocarbon group and X is Cl, Br, or I. The trihalide ion can be Cl3?, Br3? or I3?. A trichloride resin and a method of preparing the trichloride resin, where a styrene divinylbenzene polymer resin having polymer bonded -ER3+Cl? groups is contacted with chlorine. The trichloride resin can be used as a solid equivalent of chlorine gas. Formation of the styrene divinylbenzene resin comprising -ER3+Cl? units can be used to scavenge chlorine from a gas or liquid to form the styrene divinylbenzene resin comprising -ER3+Cl3? units.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: July 19, 2016
    Inventor: David Ernest Richardson
  • Patent number: 9365424
    Abstract: A chlorite salt-absorbent particle is prepared by absorbing a water soluble chlorite salt or a concentrated chlorite salt solution in an absorbent particle. The absorbent can be a silica gel particle or other particulate absorbent that can release the chlorite salt as an aqueous solution over time by simply contacting the chlorite salt-absorbent particle with water. The chlorine salt is extracted from the chlorite salt-absorbent particle over a period of minutes while being flushed with water. A chlorine dioxide generator in the form of a cartridge includes the chlorite salt-absorbent particles and an acid resin or a redox resin. Water can be introduced into an inlet of the cartridge and passes sequentially through the chlorite salt-absorbent particles and the acid resin or the redox resin with the discharge of a chlorine dioxide solution from the outlet of the cartridge.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 14, 2016
    Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventor: David Ernest Richardson
  • Publication number: 20160002037
    Abstract: A chlorite salt-absorbent particle is prepared by absorbing a water soluble chlorite salt or a concentrated chlorite salt solution in an absorbent particle. The absorbent can be a silica gel particle or other particulate absorbent that can release the chlorite salt as an aqueous solution over time by simply contacting the chlorite salt-absorbent particle with water. The chlorine salt is extracted from the chlorite salt-absorbent particle over a period of minutes while being flushed with water. A chlorine dioxide generator in the form of a cartridge includes the chlorite salt-absorbent particles and an acid resin or a redox resin. Water can be introduced into an inlet of the cartridge and passes sequentially through the chlorite salt-absorbent particles and the acid resin or the redox resin with the discharge of a chlorine dioxide solution from the outlet of the cartridge.
    Type: Application
    Filed: March 4, 2014
    Publication date: January 7, 2016
    Inventor: David Ernest Richardson
  • Publication number: 20150202616
    Abstract: A method of preparing a trihalide resin, where a trihalide ion solution is contacted with a styrene divinylbenzene polymer resin having polymer bonded -ER3+X? groups where E is N, P, or As, R is a hydrocarbon group and X is Cl, Br, or I. The trihalide ion can be Cl3?, Br3? or I3?. A trichloride resin and a method of preparing the trichloride resin, where a styrene divinylbenzene polymer resin having polymer bonded -ER3+cL? groups is contacted with chlorine. The trichloride resin can be used as a solid equivalent of chlorine gas. Formation of the styrene divinylbenzene resin comprising -ER3+Cl? units can be used to scavenge chlorine from a gas or liquid to form the styrene divinylbenzene resin comprising -ER3+Cl3? units.
    Type: Application
    Filed: August 13, 2013
    Publication date: July 23, 2015
    Inventor: David Ernest Richardson
  • Patent number: 8323563
    Abstract: An on-demand portable chlorine dioxide generator has a reagent bound medium in a first enclosed volume; a complementary reagent solution in a second enclosed volume, and a structure for selecting between a first position where the complementary reagent solution is forced through the reagent bound medium and a second position where said complementary reagent solution remains isolated from the reagent bound ion exchange medium, where a ClO2 solution is generated only during periods when the structure for forcing is actuated. The ClO2 solution can be discharged for use as a portable sprayer that can be used to treat surfaces infected by anthrax or other biological contaminants. When the bound reagent is chlorite, the complementary reagent is an acid or an oxidant. When the bound reagent is an acid or an oxidant, the complementary reagent solution is a chlorite solution.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: December 4, 2012
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: David Ernest Richardson, Daniel Eugene Denevan, Dwight C. Ramdon