Patents by Inventor Ellen Candela

Ellen Candela 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).

  • PH glass membrane and sensor
    Publication number: 20030178305
    Abstract: A pH sensor including a reference electrode, a measuring electrode operatively connected to said reference electrode, a fluid conduit for containing an electrolyte in electrolytic contact with said reference electrode, a reservoir in fluid communication with said fluid conduit, a reference junction encasing said reference electrode, and an external junction, wherein said electrolyte comprises a viscous silica suspension to maintain a flow of said electrolyte from said reservoir to reduce inward diffusion through said external junction.
    Type: Application
    Filed: October 30, 2002
    Publication date: September 25, 2003
    Inventors: Lauren M. Catalano, Ellen Candela, Kenneth S. Fletcher, Michael M. Bower, David N. Skinner, John P. Connelly
  • Sensor for electrometric measurement
    Publication number: 20020189943
    Abstract: The invention provides a sensor with a reference electrode and a flowing electrolyte which is particularly useful for measuring the ion concentration of a process solution. The invention includes a sensor having a pressurized reservoir which provides flow of an electrolyte, a non-metallic solution ground and a resistance temperature device bonded to a non-metallic solution ground. The invention provides sensors with greater accuracy and stability by minimizing or eliminating ingress of contaminants from a process solution through the external junction of the sensor.
    Type: Application
    Filed: April 12, 2002
    Publication date: December 19, 2002
    Inventors: Kenneth S. Fletcher, David N. Skinner, Ellen Candela, Michael M. Bower
  • Sensor for electrometric measurement
    Patent number: 6495012
    Abstract: The invention provides a sensor with a reference electrode and a flowing electrolyte which is particularly useful for measuring the ion concentration of a process solution. The invention includes a sensor having a pressurized reservoir which provides flow of an electrolyte, a non-metallic solution ground and a resistance temperature device bonded to a non-metallic solution ground. The invention provides sensors with greater accuracy and stability by minimizing or eliminating ingress of contaminants from a process solution through the external junction of the sensor.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: December 17, 2002
    Assignee: The Foxboro Company
    Inventors: Kenneth S. Fletcher, David N. Skinner, Ellen Candela, Michael M. Bower
  • Sensor for electrometric measurement
    Patent number: 6425995
    Abstract: The invention provides a sensor with a reference electrode and a flowing electrolyte which is particularly useful for measuring the ion concentration of a process solution. The invention includes a sensor having a pressurized reservoir which provides flow of an electrolyte, a non-metallic solution ground and a resistance temperature device bonded to a non-metallic solution ground. The invention provides sensors with greater accuracy and stability by minimizing or eliminating ingress of contaminants from a process solution through the external junction of the sensor.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 30, 2002
    Assignee: The Foxboro Company
    Inventors: Kenneth S. Fletcher, David N. Skinner, Ellen Candela, Michael M. Bower