Patents by Inventor Theresa A. Foley

Theresa A. Foley 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).

  • Optical path structure for open path emissions sensing with particulate matter and lubricating oil consumption absorption methodology
    Patent number: 6900893
    Abstract: A device for measuring particulate matter includes a light source that emits light, a receiver positioned to receive light emitted from the light source, and a detection unit in communication with the receiver. The detection unit detects an amount of particulate matter based upon the light received by the receiver.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: May 31, 2005
    Assignee: SPX Corporation
    Inventors: Theresa A. Foley, John DiDomenico, Robert A. Gentala, Craig S. Rendahl
  • Catalytic converter function detection
    Patent number: 6857262
    Abstract: A method and system detects the function of a catalytic converter in a vehicle using data received from an open path emissions sensor. The factors considered include whether the vehicle moving on a road is operating in a closed loop operating condition, whether the vehicle is operating in a cold start mode, and the hydrocarbon and other tailpipe emissions concentrations in an exhaust stream of the vehicle as measured by the open path sensor.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: February 22, 2005
    Assignee: SPX Corporation
    Inventors: Craig S. Rendahl, Theresa A. Foley
  • Method and system for detection of hydrocarbon species in a gas
    Patent number: 6789021
    Abstract: A method and system for measuring hydrocarbon content in a gas sample measures individual hydrocarbon concentrations in the gas sample and determines a total concentration based on the individual concentrations. The total concentration is validated and/or scaled by determining whether water interference may be occurring and either adjusting the total concentration or flagging the total concentration as invalid. The total concentration may also be adjusted to account for ambient conditions, such as temperature, pressure or relative humidity, as well as for potential double-counting of individual hydrocarbon species.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: September 7, 2004
    Assignee: SPX Corporation
    Inventors: Craig S. Rendahl, Theresa A. Foley
  • Method and system for determining the type of fuel used to power a vehicle
    Patent number: 6745613
    Abstract: A method for determining the type of fuel used by a vehicle includes receiving hydrocarbon speciation and nitrogen-oxygen compound data from an emissions sensor. The hydrocarbon speciation data is compared to one or more hydrocarbon threshold levels, and each threshold level corresponds to an anticipated fuel type. The nitrogen-oxygen compound data is compared to one or more nitrogen-oxygen compound threshold levels, and each threshold level corresponds to an anticipated fuel type. Based on the comparison of the hydrocarbon speciation and nitrogen-oxygen compound data to threshold levels, an anticipated fuel type is determined.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: June 8, 2004
    Assignee: SPX Corporation
    Inventors: Craig S. Rendahl, Theresa A. Foley
  • Method and system for detection of hydrocarbon species in a gas
    Publication number: 20030069703
    Abstract: A method and system for measuring hydrocarbon content in a gas sample measures individual hydrocarbon concentrations in the gas sample and determines a total concentration based on the individual concentrations. The total concentration is validated and/or scaled by determining whether water interference may be occurring and either adjusting the total concentration or flagging the total concentration as invalid. The total concentration may also be adjusted to account for ambient conditions, such as temperature, pressure or relative humidity, as well as for potential double-counting of individual hydrocarbon species.
    Type: Application
    Filed: February 15, 2002
    Publication date: April 10, 2003
    Applicant: SPX Corporation
    Inventors: Craig S. Rendahl, Theresa A. Foley
  • Optical path structure for open path emissions sensing with particulate matter and lubricating oil consumption absorption methodology
    Publication number: 20030058451
    Abstract: A device for measuring particulate matter includes a light source that emits light, a receiver positioned to receive light emitted from the light source, and a detection unit in communication with the receiver. The detection unit detects an amount of particulate matter based upon the light received by the receiver.
    Type: Application
    Filed: May 10, 2002
    Publication date: March 27, 2003
    Applicant: SPX Corporation
    Inventors: Theresa A. Foley, John DiDomenico, Robert A. Gentala, Craig S. Rendahl
  • Method and system for determining the type of fuel used to power a vehicle
    Publication number: 20030037594
    Abstract: A method for determining the type of fuel used by a vehicle includes receiving hydrocarbon speciation and nitrogen-oxygen compound data from an emissions sensor. The hydrocarbon speciation data is compared to one or more hydrocarbon threshold levels, and each threshold level corresponds to an anticipated fuel type. The nitrogen-oxygen compound data is compared to one or more nitrogen-oxygen compound threshold levels, and each threshold level corresponds to an anticipated fuel type. Based on the comparison of the hydrocarbon speciation and nitrogen-oxygen compound data to threshold levels, an anticipated fuel type is determined.
    Type: Application
    Filed: August 13, 2001
    Publication date: February 27, 2003
    Inventors: Craig S. Rendahl, Theresa A. Foley
  • Catalytic converter function detection
    Publication number: 20030037538
    Abstract: A method and system detects the function of a catalytic converter in a vehicle using data received from an open path emissions sensor. The factors considered include whether the vehicle moving on a road is operating in a closed loop operating condition, whether the vehicle is operating in a cold start mode, and the hydrocarbon and other tailpipe emissions concentrations in an exhaust stream of the vehicle as measured by the open path sensor.
    Type: Application
    Filed: August 16, 2001
    Publication date: February 27, 2003
    Inventors: Craig S. Rendahl, Theresa A. Foley