Patents by Inventor Barbara H. Davis

Barbara H. Davis 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).

  • Method of tracing corrosive materials
    Patent number: 7811517
    Abstract: A method of using an inert fluorescent tracer in a system that contains liquids in contact with solid surfaces and wherein said system contains a corrosive environment, is described and claimed, as is a method of using an inert fluorescent tracer to trace the corrosive material itself. Combinations of inert fluorescent tracers in corrosive materials are also described and claimed.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: October 12, 2010
    Assignee: Nalco Company
    Inventors: John E. Hoots, Barbara H. Davis
  • METHOD OF TRACING CORROSIVE MATERIALS
    Publication number: 20080160626
    Abstract: A method of using an inert fluorescent tracer in a system that contains liquids in contact with solid surfaces and wherein said system contains a corrosive environment, is described and claimed, as is a method of using an inert fluorescent tracer to trace the corrosive material itself. Combinations of inert fluorescent tracers in corrosive materials are also described and claimed.
    Type: Application
    Filed: March 4, 2008
    Publication date: July 3, 2008
    Inventors: John E. Hoots, Barbara H. Davis
  • Method of enhancing the fluorescent signal of a fluorescent oxygen scavenger
    Patent number: 6566139
    Abstract: A method of automatically controlling the addition rate of Fresh Oxygen Scavenger Product and Ultimate Oxygen Scavenger Product to a Boiler System is described and claimed. The method is based on the inherent fluorometric properties of certain Fresh Oxygen Scavenger Products and certain Ultimate Oxygen Scavengers in their reduced (unreacted) form and also, for the Ultimate Oxygen Scavengers, in their oxidized (reacted) form. It has also been found possible to enhance the fluorescent signal of certain Oxygen Scavengers by adding a borate buffer to the sample stream. By using the method of the instant claimed invention it is now possible to improve the overall control of Boiler Systems using certain Fresh Oxygen Scavenger Products and certain Ultimate Oxygen Scavenger Products.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: May 20, 2003
    Assignee: Ondeo Nalco Company
    Inventors: Barbara H. Davis, Linda M. Link, John E. Hoots
  • Method of enhancing the fluorescent signal of a fluorescent oxygen scavenger
    Publication number: 20020192830
    Abstract: A method of automatically controlling the addition rate of Fresh Oxygen Scavenger Product and Ultimate Oxygen Scavenger Product to a Boiler System is described and claimed. The method is based on the inherent fluorometric properties of certain Fresh Oxygen Scavenger Products and certain Ultimate Oxygen Scavengers in their reduced (unreacted) form and also, for the Ultimate Oxygen Scavengers, in their oxidized (reacted) form. It has also been found possible to enhance the fluorescent signal of certain Oxygen Scavengers by adding a borate buffer to the sample stream. By using the method of the instant claimed invention it is now possible to improve the overall control of Boiler Systems using certain Fresh Oxygen Scavenger Products and certain Ultimate Oxygen Scavenger Products.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 19, 2002
    Inventors: Barbara H. Davis, Linda M. Link, John E. Hoots
  • Fluorometric control of aromatic oxygen scavengers in a boiler system
    Patent number: 6436711
    Abstract: A method of automatically controlling the addition rate of Fresh Oxygen Scavenger Product and Ultimate Oxygen Scavenger Product to a Boiler System is described and claimed. The method is based on the inherent fluorometric properties of certain Fresh Oxygen Scavenger Products and certain Ultimate Oxygen Scavengers in their reduced (unreacted) form and also, for the Ultimate Oxygen Scavengers, in their oxidized (reacted) form. It has also been found possible to enhance the fluorescent signal of certain Oxygen Scavengers by adding a borate buffer to the sample stream. By using the method of the instant claimed invention it is now possible to improve the overall control of Boiler Systems using certain Fresh Oxygen Scavenger Products and certain Ultimate Oxygen Scavenger Products.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: August 20, 2002
    Assignee: Nalco Chemical Company
    Inventors: Barbara H. Davis, Linda M. Link, John E. Hoots
  • Fluorometric control of aromatic oxygen scavengers in a boiler system
    Publication number: 20020110918
    Abstract: A method of automatically controlling the addition rate of Fresh Oxygen Scavenger Product and Ultimate Oxygen Scavenger Product to a Boiler System is described and claimed. The method is based on the inherent fluorometric properties of certain Fresh Oxygen Scavenger Products and certain Ultimate Oxygen Scavengers in their reduced (unreacted) form and also, for the Ultimate Oxygen Scavengers, in their oxidized (reacted) form. It has also been found possible to enhance the fluorescent signal of certain Oxygen Scavengers by adding a borate buffer to the sample stream. By using the method of the instant claimed invention it is now possible to improve the overall control of Boiler Systems using certain Fresh Oxygen Scavenger Products and certain Ultimate Oxygen Scavenger Products.
    Type: Application
    Filed: December 13, 2000
    Publication date: August 15, 2002
    Inventors: Barbara H. Davis, Linda M. Link, John E. Hoots