Patents by Inventor William P. Partridge, Jr.
William P. Partridge, Jr. 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).
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Patent number: 9851296Abstract: A diagnostic system for measuring temperature, pressure, CO2 concentration and H2O concentration in a fluid stream is described. The system may include one or more probes that sample the fluid stream spatially, temporally and over ranges of pressure and temperature. Laser light sources are directed down pitch optical cables, through a lens and to a mirror, where the light sources are reflected back, through the lens to catch optical cables. The light travels through the catch optical cables to detectors, which provide electrical signals to a processer. The processer utilizes the signals to calculate CO2 concentration based on the temperatures derived from H2O vapor concentration. A probe for sampling CO2 and H2O vapor concentrations is also disclosed. Various mechanical features interact together to ensure the pitch and catch optical cables are properly aligned with the lens during assembly and use.Type: GrantFiled: November 18, 2016Date of Patent: December 26, 2017Assignee: UT-Battelle, LLCInventors: William P. Partridge, Jr., Gurneesh Singh Jatana, Ji Hyung Yoo, James E. Parks, II
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Publication number: 20170074787Abstract: A diagnostic system for measuring temperature, pressure, CO2 concentration and H2O concentration in a fluid stream is described. The system may include one or more probes that sample the fluid stream spatially, temporally and over ranges of pressure and temperature. Laser light sources are directed down pitch optical cables, through a lens and to a mirror, where the light sources are reflected back, through the lens to catch optical cables. The light travels through the catch optical cables to detectors, which provide electrical signals to a processer. The processer utilizes the signals to calculate CO2 concentration based on the temperatures derived from H2O vapor concentration. A probe for sampling CO2 and H2O vapor concentrations is also disclosed. Various mechanical features interact together to ensure the pitch and catch optical cables are properly aligned with the lens during assembly and use.Type: ApplicationFiled: November 18, 2016Publication date: March 16, 2017Inventors: William P. Partridge, JR., Gurneesh Singh Jatana, Ji-Hyung Yoo, James E. Parks, II
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Patent number: 9541498Abstract: A diagnostic system for measuring temperature, pressure, CO2 concentration and H2O concentration in a fluid stream is described. The system may include one or more probes that sample the fluid stream spatially, temporally and over ranges of pressure and temperature. Laser light sources are directed down pitch optical cables, through a lens and to a mirror, where the light sources are reflected back, through the lens to catch optical cables. The light travels through the catch optical cables to detectors, which provide electrical signals to a processer. The processer utilizes the signals to calculate CO2 concentration based on the temperatures derived from H2O vapor concentration. A probe for sampling CO2 and H2O vapor concentrations is also disclosed. Various mechanical features interact together to ensure the pitch and catch optical cables are properly aligned with the lens during assembly and use.Type: GrantFiled: August 21, 2015Date of Patent: January 10, 2017Assignee: UT-Battelle, LLCInventors: William P. Partridge, Jr., Gurneesh Singh Jatana, Ji-Hyung Yoo, James E. Parks, II
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Patent number: 9068933Abstract: A diagnostic system having a laser, an EGR probe, a detector and a processor. The laser may be a swept-? laser having a sweep range including a significant CO2 feature and substantially zero absorption regions. The sweep range may extend from about 2.708 ?m to about 2.7085 ?m. The processor may determine CO2 concentration as a function of the detector output signal. The processor may normalize the output signal as a function of the zero absorption regions. The system may include a plurality of EGR probes receiving light from a single laser. The system may include a separate detector for each probe. Alternatively, the system may combine the light returning from the different probes into a composite beam that is measured by a single detector. A unique modulation characteristic may be introduced into each light beam before combination so that the processor can discriminate between them in the composite beam.Type: GrantFiled: October 11, 2013Date of Patent: June 30, 2015Assignee: UT-Battelle, LLCInventors: James E. Parks, II, William P. Partridge, Jr., Ji Hyung Yoo
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Patent number: 9000374Abstract: A diagnostic system having a single-port EGR probe and a method for using the same. The system includes a light source, an EGR probe, a detector and a processor. The light source may provide a combined light beam composed of light from a mid-infrared signal source and a mid-infrared reference source. The signal source may be centered at 4.2 ?m and the reference source may be centered at 3.8 ?m. The EGR probe may be a single-port probe with internal optics and a sampling chamber with two flow cells arranged along the light path in series. The optics may include a lens for focusing the light beam and a mirror for reflecting the light beam received from a pitch optical cable to a catch optical cable. The signal and reference sources are modulated at different frequencies, thereby allowing them to be separated and the signal normalized by the processor.Type: GrantFiled: June 7, 2013Date of Patent: April 7, 2015Assignee: UT-Battelle, LLCInventors: James E. Parks, II, William P. Partridge, Jr., Ji Hyung Yoo
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Patent number: 8653830Abstract: Methods and apparatuses for evaluating a material are described. Embodiments typically involve use of an impedance measurement sensor to measure the impedance of a sample of the material under at least two different states of illumination. The states of illumination may include (a) substantially no optical stimulation, (b) substantial optical stimulation, (c) optical stimulation at a first wavelength of light, (d) optical stimulation at a second wavelength of light, (e) a first level of light intensity, and (f) a second level of light intensity. Typically a difference in impedance between the impedance of the sample at the two states of illumination is measured to determine a characteristic of the material.Type: GrantFiled: December 2, 2008Date of Patent: February 18, 2014Assignee: UT-Battelle, LLCInventors: Lonnie C. Maxey, James E. Parks, II, Samuel A. Lewis, Sr., William P Partridge, Jr.
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Publication number: 20140034833Abstract: A diagnostic system having a laser, an EGR probe, a detector and a processor. The laser may be a swept-? laser having a sweep range including a significant CO2 feature and substantially zero absorption regions. The sweep range may extend from about 2.708 ?m to about 2.7085 ?m. The processor may determine CO2 concentration as a function of the detector output signal. The processor may normalize the output signal as a function of the zero absorption regions. The system may include a plurality of EGR probes receiving light from a single laser. The system may include a separate detector for each probe. Alternatively, the system may combine the light returning from the different probes into a composite beam that is measured by a single detector. A unique modulation characteristic may be introduced into each light beam before combination so that the processor can discriminate between them in the composite beam.Type: ApplicationFiled: October 11, 2013Publication date: February 6, 2014Inventors: James E. Parks, II, William P. Partridge, JR., Ji Hyung Yoo
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Publication number: 20130327943Abstract: A diagnostic system having a single-port EGR probe and a method for using the same. The system includes a light source, an EGR probe, a detector and a processor. The light source may provide a combined light beam composed of light from a mid-infrared signal source and a mid-infrared reference source. The signal source may be centered at 4.2 ?m and the reference source may be centered at 3.8 ?m. The EGR probe may be a single-port probe with internal optics and a sampling chamber with two flow cells arranged along the light path in series. The optics may include a lens for focusing the light beam and a mirror for reflecting the light beam received from a pitch optical cable to a catch optical cable. The signal and reference sources are modulated at different frequencies, thereby allowing them to be separated and the signal normalized by the processor.Type: ApplicationFiled: June 7, 2013Publication date: December 12, 2013Inventors: James E. Parks, II, William P. Partridge, JR., Ji Hyung Yoo
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Patent number: 8248612Abstract: Provided are sensors and methods of measuring the oxygen concentration of a fluid. An excitation light source is in optical communication with a transducer for transmitting an excitation light that is at least partially absorbed by the transducer. The transducer has a property of photoluminescence, and enters a higher energy state by at least partially absorbing the excitation light and enters a lower energy state through radiation of emitted light, thus producing spectral indicia. A light detection system, which is also in optical communication with the transducer, processes the spectral indicia to determine the concentration of oxygen in the fluid.Type: GrantFiled: July 26, 2010Date of Patent: August 21, 2012Assignee: UT-Batelle, LLCInventors: James E. Parks, II, William P. Partridge, Jr.
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Publication number: 20120182025Abstract: Methods and apparatuses for evaluating a material are described. Embodiments typically involve use of an impedance measurement sensor to measure the impedance of a sample of the material under at least two different states of illumination. The states of illumination may include (a) substantially no optical stimulation, (b) substantial optical stimulation, (c) optical stimulation at a first wavelength of light, (d) optical stimulation at a second wavelength of light, (e) a first level of light intensity, and (f) a second level of light intensity. Typically a difference in impedance between the impedance of the sample at the two states of illumination is measured to determine a characteristic of the material.Type: ApplicationFiled: December 2, 2008Publication date: July 19, 2012Applicant: UT-BATTELLE, LLCInventors: Lonnie C. Maxey, James E. Parks, II, Samuel A. Lewis, SR., William P Partridge, JR.
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Publication number: 20120019829Abstract: Provided are sensors and methods of measuring the oxygen concentration of a fluid. An excitation light source is in optical communication with a transducer for transmitting an excitation light that is at least partially absorbed by the transducer. The transducer has a property of photoluminescence, and enters a higher energy state by at least partially absorbing the excitation light and enters a lower energy state through radiation of emitted light, thus producing spectral indicia. A light detection system, which is also in optical communication with the transducer, processes the spectral indicia to determine the concentration of oxygen in the fluid.Type: ApplicationFiled: July 26, 2010Publication date: January 26, 2012Applicant: UT-BATTELLE, LLCInventors: James E. Parks, II, William P. Partridge, JR.
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Patent number: 7839492Abstract: Apparatus for detecting fuel in oil includes an excitation light source in optical communication with an oil sample for exposing the oil sample to excitation light in order to excite the oil sample from a non-excited state to an excited state and a spectrally selective device in optical communication with the oil sample for detecting light emitted from the oil sample as the oil sample returns from the excited state to a non-excited state to produce spectral indicia that can be analyzed to determine the presence of fuel in the oil sample. A method of detecting fuel in oil includes the steps of exposing a oil sample to excitation light in order to excite the oil sample from a non-excited state to an excited state, as the oil sample returns from the excited state to a non-excited state, detecting light emitted from the oil sample to produce spectral indicia; and analyzing the spectral indicia to determine the presence of fuel in the oil sample.Type: GrantFiled: June 12, 2008Date of Patent: November 23, 2010Assignee: UT-Battelle, LLCInventors: James E. Parks, II, William P. Partridge, Jr.
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Publication number: 20090310127Abstract: Apparatus for detecting fuel in oil includes an excitation light source in optical communication with an oil sample for exposing the oil sample to excitation light in order to excite the oil sample from a non-excited state to an excited state and a spectrally selective device in optical communication with the oil sample for detecting light emitted from the oil sample as the oil sample returns from the excited state to a non-excited state to produce spectral indicia that can be analyzed to determine the presence of fuel in the oil sample. A method of detecting fuel in oil includes the steps of exposing a oil sample to excitation light in order to excite the oil sample from a non-excited state to an excited state, as the oil sample returns from the excited state to a non-excited state, detecting light emitted from the oil sample to produce spectral indicia; and analyzing the spectral indicia to determine the presence of fuel in the oil sample.Type: ApplicationFiled: June 12, 2008Publication date: December 17, 2009Applicant: UT-BATTELLE, LLCInventors: James E. Parks, II, William P. Partridge, JR.
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Patent number: 7247383Abstract: An integrated window design for optical transmission in combustion environments is described. The invention consists of an integrated optical window design that prevents and removes the accumulation of carbon-based particulate matter and gaseous hydrocarbons through a combination of heat and catalysis. These windows will enable established optical technologies to be applied to combustion environments and their exhaust systems.Type: GrantFiled: March 26, 2004Date of Patent: July 24, 2007Assignee: U.S. Department of EnergyInventors: Michael D. Kass, William P. Partridge, Jr.