Patents by Inventor Sandra G. Claeys

Sandra G. Claeys 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).

  • Coolant having rapid metal passivation properties
    Patent number: 10246622
    Abstract: It has been found that the chemical reactivity of the metal surface of heat exchangers with coolants in presence of nitrites can be reduced by the addition of additives such as phosphonates or phosphinates. Aluminum, other Group III metals, as well as other metals commonly used in cooling systems, such as those of automobile engines, may thus be effectively protected.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: April 2, 2019
    Assignee: Arteco NV
    Inventors: Sandra G. Claeys, Serge S. Lievens
  • COOLANT HAVING RAPID METAL PASSIVATION PROPERTIES
    Publication number: 20150267101
    Abstract: It has been found that the chemical reactivity of the metal surface of heat exchangers with coolants in presence of nitrites can be reduced by the addition of additives such as phosphonates or phosphinates. Aluminum, other Group III metals, as well as other metals commonly used in cooling systems, such as those of automobile engines, may thus be effectively protected.
    Type: Application
    Filed: June 4, 2015
    Publication date: September 24, 2015
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Sandra G. CLAEYS, Serge S. LIEVENS
  • Coolant having rapid metal passivation properties
    Patent number: 9115302
    Abstract: It has been found that the chemical reactivity of the metal surface of heat exchangers with coolants in presence of nitrites can be reduced by the addition of additives such as phosphonates or phosphinates. Aluminum, other Group III metals, as well as other metals commonly used in cooling systems, such as those of automobile engines, may thus be effectively protected.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 25, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Sandra G. Claeys, Serge S. Lievens
  • COOLANT HAVING RAPID METAL PASSIVATION PROPERTIES
    Publication number: 20140061529
    Abstract: It has been found that the chemical reactivity of the metal surface of heat exchangers with coolants in presence of nitrites can be reduced by the addition of additives such as phosphonates or phosphinates. Aluminum , other Group III metals, as well as other metals commonly used in cooling systems, such as those of automobile engines, may thus be effectively protected.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 6, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Sandra G. Claeys, Serge S. Lievens
  • METHODS AND COMPOSITIONS FOR PASSIVATING HEAT EXCHANGER SYSTEMS
    Publication number: 20130099169
    Abstract: A process for extending the life of coolant fluids by passivating surfaces of components and parts in heat exchanger systems that employ coolants for heat transfer. In the method, heat exchanger parts with metal surfaces which chemically and detrimentally interact with additives in coolant fluids in the heat exchanger system are treated by contacting the metal surfaces with a phosphate-containing solution for the phosphate-containing solution to passivate the metal surface for subsequent contact with the coolant fluids.
    Type: Application
    Filed: November 30, 2011
    Publication date: April 25, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Regis J. Pellet, Sandra G. Claeys, Serge S. Lievens, Douglas P. Hunsicker
  • Ester Based Heat Transfer Fluid Useful as a Coolant for Electric Vehicles
    Publication number: 20120164506
    Abstract: Provided is a heat transfer fluid formulation comprising at least one diester or triester species having ester links on adjacent carbons. The formulation exhibits an excellent balance of dielectric and heat transfer properties, and is useful as a coolant for electric vehicles.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 28, 2012
    Applicant: Chevron U.S.A. Inc.
    Inventors: Sandra G. Claeys, Serge S. Lievens, Paul Van De Ven, Zhen Zhou, Stephen J. Miller, Ryan J. Schexnaydre, Saleh Elomari
  • METHODS AND COMPOSITIONS FOR PASSIVATING HEAT EXCHANGER SYSTEMS
    Publication number: 20090045379
    Abstract: A method for treating parts in a heat exchanger system is provided. In the method, heat exchanger parts with metal surfaces which chemically and detrimentally interact with additives in coolant fluids in the heat exchanger system are treated by contacting the metal surfaces with a phosphate-containing solution for the phosphate-containing solution to passivate the metal surface for subsequent contact with the coolant fluids.
    Type: Application
    Filed: August 4, 2008
    Publication date: February 19, 2009
    Inventors: Regis J. Pellet, Sandra G. Claeys, Serge S. Lievens, Douglas P. Hunsicker