Patents by Inventor Timothy A. Short
Timothy A. Short 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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Publication number: 20230012777Abstract: Systems and methods disclosed provide a laser-assisted micro-mass spectrometer, which can include a pulsed inlet, a multi-wavelength laser system, and a first mass spectrometer module including a plurality of first ionization sources. In an embodiment, the pulsed inlet can be configured to receive a neutral sample of analyte material and provide it to said first mass spectrometer module.Type: ApplicationFiled: June 30, 2022Publication date: January 19, 2023Inventors: Ashish Chaudhary, R. Timothy Short
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Patent number: 11101120Abstract: The disclosure includes an ionization chamber, a first electron multiplier, and a second electron multiplier. The ionization chamber is configured to receive gas molecules from an environment at a pressure. The first electron multiplier is configured to receive a plurality of photons from a photon source, generate a first plurality of electrons from the plurality of photons, and discharge the first plurality of electrons into the ionization chamber to generate a plurality of gas ions from at least a portion of the gas molecules. The second electron multiplier is configured to receive the plurality of gas ions from the ionization chamber and generate a second plurality of electrons from the plurality of gas ions that is proportional to a quantity of the plurality of gas ions. A quantity of electrons of the second plurality of electrons is indicative of the pressure.Type: GrantFiled: October 25, 2019Date of Patent: August 24, 2021Assignee: SRI InternationalInventors: Ashish Chaudhary, Robert Timothy Short
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Publication number: 20200161109Abstract: The disclosure includes an ionization chamber, a first electron multiplier, and a second electron multiplier. The ionization chamber is configured to receive gas molecules from an environment at a pressure. The first electron multiplier is configured to receive a plurality of photons from a photon source, generate a first plurality of electrons from the plurality of photons, and discharge the first plurality of electrons into the ionization chamber to generate a plurality of gas ions from at least a portion of the gas molecules. The second electron multiplier is configured to receive the plurality of gas ions from the ionization chamber and generate a second plurality of electrons from the plurality of gas ions that is proportional to a quantity of the plurality of gas ions. A quantity of electrons of the second plurality of electrons is indicative of the pressure.Type: ApplicationFiled: October 25, 2019Publication date: May 21, 2020Inventors: Ashish Chaudhary, Robert Timothy Short
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Patent number: 9589776Abstract: A dual-ionization mass spectrometer includes a first mass spectrometer module forming a hard ionization mass spectrometer, a second mass spectrometer forming a soft ionization mass spectrometer, a vacuum ultraviolet light source positioned between the first and second modules, a housing encompassing the first and second sets of plates and the light source, and an inlet positioned to receive a sample of an analyte and provide it to at least one of the sets of plates. A method of detecting a substance includes receiving a sample of an analyte into a housing through an inlet, performing soft ionization mass spectrometry on the sample with a soft ionization mass spectrometer in the housing, performing hard ionization spectrometry on the sample with a hard ionization spectrometer in the housing if needed, and generating a detection result from at least one of the soft ionization spectrometry and the hard ionization spectrometry.Type: GrantFiled: March 15, 2016Date of Patent: March 7, 2017Assignee: SRI InternationalInventors: Ashish Chaudhary, Friso Van Amerom, R. Timothy Short
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Publication number: 20160276144Abstract: A dual-ionization mass spectrometer includes a first mass spectrometer module forming a hard ionization mass spectrometer, a second mass spectrometer forming a soft ionization mass spectrometer, a vacuum ultraviolet light source positioned between the first and second modules, a housing encompassing the first and second sets of plates and the light source, and an inlet positioned to receive a sample of an analyte and provide it to at least one of the sets of plates. A method of detecting a substance includes receiving a sample of an analyte into a housing through an inlet, performing soft ionization mass spectrometry on the sample with a soft ionization mass spectrometer in the housing, performing hard ionization spectrometry on the sample with a hard ionization spectrometer in the housing if needed, and generating a detection result from at least one of the soft ionization spectrometry and the hard ionization spectrometry.Type: ApplicationFiled: March 15, 2016Publication date: September 22, 2016Inventors: ASHISH CHAUDHARY, FRISO VAN AMEROM, R. TIMOTHY SHORT
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Patent number: 9117645Abstract: A planar ion funnel is disclosed that can be used for ion control. In one application, the planar ion funnel can be used for ion control in a mass spectrometer. The planar ion funnel can be formed on a surface of a substantially planar substrate including an orifice. An electrically conductive structure can be formed on a top surface of the substrate that surrounds the orifice. In operation, a power can be applied to the conductive structure that causes an electric field to be generated that draws ions into and through the orifice. In one embodiment, the orifice can be circular and the conductive structure can be a series of nested rings of increasing diameter surrounding the orifice.Type: GrantFiled: November 9, 2012Date of Patent: August 25, 2015Assignee: SRI InternationalInventors: Friso H. W. van Amerom, Ashish Chaudhary, R. Timothy Short
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Patent number: 8785207Abstract: The present invention relates generally a method and apparatus for measuring multiple parameters in-situ in a sample collected from an environmental system via a single device. In one embodiment, the method includes collecting the sample from said environmental system via the single device, measuring a first parameter of the sample in-situ via the single device, adding a reagent tot the sample within the single device to create a reagent infused sample and measuring a second parameter of the sample in-situ via the single device using the reagent infused sample.Type: GrantFiled: September 11, 2009Date of Patent: July 22, 2014Assignee: SRI InternationalInventors: Ryan J. Bell, R. Timothy Short, Strawn K. Toler, Robert H. Byrne
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Patent number: 8742335Abstract: In one embodiment, the present invention relates generally to a rotator sample introduction interface. In one embodiment, the rotary interface for collecting an analyte includes a valve body, a rotor coupled to the valve body and a stator coupled to the rotor. In one embodiment, the rotor is channel-free and the stator includes a first channel and a second channel, wherein the first channel comprises an inlet for receiving a liquid and an outlet for expelling the liquid, wherein a carrier gas is provided via an inlet of the second channel and an outlet of the second channel is coupled to an analyzer.Type: GrantFiled: December 17, 2010Date of Patent: June 3, 2014Assignee: SRI InternationalInventors: Ryan J. Bell, R. Timothy Short, Strawn K. Toler, Friso H. W. van Amerom
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Patent number: 8413490Abstract: The present invention relates generally to an apparatus for obtaining a sample underwater. In one embodiment, the apparatus includes a syringe pump comprising a plurality of syringes, a sampling probe coupled to the syringe pump for collecting the sample underwater and an analyzer module coupled to the syringe pump.Type: GrantFiled: September 11, 2009Date of Patent: April 9, 2013Assignee: SRI InternationalInventors: Ryan J. Bell, R. Timothy Short, Strawn K. Toler, Bill Huzar
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Publication number: 20110147580Abstract: In one embodiment, the present invention relates generally to a rotator sample introduction interface. In one embodiment, the rotary interface for collecting an analyte includes a valve body, a rotor coupled to the valve body and a stator coupled to the rotor. In one embodiment, the rotor is channel-free and the stator includes a first channel and a second channel, wherein the first channel comprises an inlet for receiving a liquid and an outlet for expelling the liquid, wherein a carrier gas is provided via an inlet of the second channel and an outlet of the second channel is coupled to an analyzer.Type: ApplicationFiled: December 17, 2010Publication date: June 23, 2011Inventors: Ryan J. Bell, R. Timothy Short, Strawn K. Toler, Friso H.W. van Amerom
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Publication number: 20100070201Abstract: The present invention relates generally a method and apparatus for measuring multiple parameters in-situ in a sample collected from an environmental system via a single device. In one embodiment, the method includes collecting the sample from said environmental system via the single device, measuring a first parameter of the sample in-situ via the single device, adding a reagent tot the sample within the single device to create a reagent infused sample and measuring a second parameter of the sample in-situ via the single device using the reagent infused sample.Type: ApplicationFiled: September 11, 2009Publication date: March 18, 2010Inventors: RYAN J. BELL, R. Timothy Short, Strawn K. Toler, Robert H. Byrne
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Publication number: 20100064825Abstract: The present invention relates generally to an apparatus for obtaining a sample underwater. In one embodiment, the apparatus includes a syringe pump comprising a plurality of syringes, a sampling probe coupled to the syringe pump for collecting the sample underwater and an analzyer module coupled to the syringe pump.Type: ApplicationFiled: September 11, 2009Publication date: March 18, 2010Inventors: RYAN J BELL, R. Timothy Short, Strawn K. Toler, Bill Huzar
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Patent number: 6744045Abstract: A portable mass spectrometer for underwater use includes a watertight case having an inlet and means for transforming an analyte gas molecule from a solution phase into a gas phase positioned within the case. Means for directing a fluid to the transforming means from the inlet and means for analyzing the gas-phase analyte molecule to determine an identity thereof are also positioned within the case.Type: GrantFiled: October 4, 2001Date of Patent: June 1, 2004Assignee: University of South FloridaInventors: David P. Fries, Robert Timothy Short, Robert H. Byrne
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Patent number: 6727498Abstract: A portable mass spectrometer for underwater use includes a watertight case having an inlet and means for transforming an analyte gas molecule from a solution phase into a gas phase positioned within the case. Means for directing a fluid to the transforming means from the inlet and means for analyzing the gas-phase analyte molecule to determine an identity thereof are also positioned within the case.Type: GrantFiled: October 4, 2001Date of Patent: April 27, 2004Assignee: University of South FloridaInventors: David P. Fries, Robert Timothy Short, Robert H. Byrne
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Publication number: 20020079441Abstract: A portable mass spectrometer for underwater use includes a watertight case having an inlet and means for transforming an analyte gas molecule from a solution phase into a gas phase positioned within the case. Means for directing a fluid to the transforming means from the inlet and means for analyzing the gas-phase analyte molecule to determine an identity thereof are also positioned within the case.Type: ApplicationFiled: October 4, 2001Publication date: June 27, 2002Inventors: David P. Fries, Robert Timothy Short, Robert H. Byrne
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Publication number: 20020079442Abstract: A portable mass spectrometer for underwater use includes a watertight case having an inlet and means for transforming an analyte gas molecule from a solution phase into a gas phase positioned within the case. Means for directing a fluid to the transforming means from the inlet and means for analyzing the gas-phase analyte molecule to determine an identity thereof are also positioned within the case.Type: ApplicationFiled: October 4, 2001Publication date: June 27, 2002Inventors: David P. Fries, Robert Timothy Short, Robert H. Byrne
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Patent number: 5677891Abstract: A data security device is unitarily formed in an integrated circuit. A processor of the data security device operates in response to a clock signal provided at a clock input of the processor. Clock signal generation circuitry generates an internal clock signal. First processor-readable program code is configured to cause the processor to detect an internal, protectable, non-volatile indication of a state of the integrated circuit data security device. For example, one indication may be that non-volatile memory of the data security device has never been initialized. Another indication may be that the non-volatile memory of the data security device contains a manufacturing test pattern. Clock signal selection circuitry selectively provides a path for either the internal clock signal to be provided to the clock input of the processor or, alternatively, for an externally-provided clock signal to be provided to the clock input of the processor.Type: GrantFiled: November 26, 1996Date of Patent: October 14, 1997Assignee: National Semiconductor CorporationInventors: Timothy A. Short, Matthew H. Childs
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Patent number: 5604713Abstract: A data security device is unitarily formed in an integrated circuit. A processor of the data security device operates in response to a clock signal provided at a clock input of the processor. Clock signal generation circuitry generates an internal clock signal. First processor-readable program code is configured to cause the processor to detect an internal, protectable, non-volatile indication of a state of the integrated circuit data security device. For example, one indication may be that non-volatile memory of the data security device has never been initialized. Another indication may be that the non-volatile memory of the data security device contains a manufacturing test pattern. Clock signal selection circuitry selectively provides a path for either the internal clock signal to be provided to the clock input of the processor or, alternatively, for an externally-provided clock signal to be provided to the clock input of the processor.Type: GrantFiled: December 19, 1995Date of Patent: February 18, 1997Assignee: National Semiconductor CorporationInventors: Timothy A. Short, Matthew H. Childs
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Patent number: 5533123Abstract: The present invention is embodied in a Secured Processing Unit (SPU) chip, a microprocessor designed especially for secure data processing. By integrating keys, encryption/decryption engines and algorithms in the SPU, the entire security process is rendered portable and easily distributed across physical boundaries. The invention is based on the orchestration of three interrelated systems: (i) detectors, which alert the SPU to the existence, and help characterize the nature, of a security attack; (ii) filters, which correlate the data from the various detectors, weighing the severity of the attack against the risk to the SPU's integrity, both to its secret data and to the design itself; and (iii) responses, which are countermeasures, calculated by the filters to be most appropriate under the circumstances, to deal with the attack or attacks present.Type: GrantFiled: June 28, 1994Date of Patent: July 2, 1996Assignee: National Semiconductor CorporationInventors: Gordon Force, Timothy D. Davis, Richard L. Duncan, Thomas M. Norcross, Michael J. Shay, Timothy A. Short