Patents by Inventor Angela L. Delegard

Angela L. Delegard 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).

  • Composition, system, and method for treating water systems
    Patent number: 9707520
    Abstract: A composition for treating a water system or membrane fluid system, such as a reverse osmosis system, to remove scale, microorganisms and biofilm, and corrosion by-products. The composition comprises chelating agents and a surfactant. The composition may be a solid dissolved by water or solvent in the system being treated or may be a pre-mixed foam or aerosol. A method for using such a treatment composition comprises contacting the treatment composition with substantially all parts of the water system and draining the treatment composition from the system before resuming normal operations. For certain systems, the method also comprises draining some existing water in the water system to remove prior treatment compositions and filling or rinsing the system with fresh water prior to adding the treatment composition.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: July 18, 2017
    Assignee: NCH Corporation
    Inventors: Adrian Denvir, James Gregory Edford, Angela L Delegard, Scott M Boyette
  • Composition, System, and Method for Treating Water Systems
    Publication number: 20160354727
    Abstract: A composition for treating a water system or membrane fluid system, such as a reverse osmosis system, to remove scale, microorganisms and biofilm, and corrosion by-products. The composition comprises chelating agents and a surfactant. The composition may be a solid dissolved by water or solvent in the system being treated or may be a pre-mixed foam or aerosol. A method for using such a treatment composition comprises contacting the treatment composition with substantially all parts of the water system and draining the treatment composition from the system before resuming normal operations. For certain systems, the method also comprises draining some existing water in the water system to remove prior treatment compositions and filling or rinsing the system with fresh water prior to adding the treatment composition.
    Type: Application
    Filed: August 15, 2016
    Publication date: December 8, 2016
    Inventors: Adrian Denvir, James Gregory Edford, Angela L. Delegard, Scott M. Boyette