Patents by Inventor John Hull
John Hull 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: 11953385Abstract: An apparatus includes an enclosure having one or more apertures for receiving therethrough optical fiber, and one or more actuators sealed within the enclosure for generating one or more interference signals for interfering with optical fiber within the enclosure such that an optical path length of the optical fiber is altered. A method for verifying an event detection system includes interrogating optical fiber positioned alongside a conduit by sending one or more light pulses along the optical fiber and receiving reflections of the one or more light pulses. The method further includes using an event verification device housed within an enclosure through which passes the optical fiber to generate one or more interference signals for interfering with the optical fiber such that an optical path length of the optical fiber is altered.Type: GrantFiled: December 2, 2019Date of Patent: April 9, 2024Assignee: HIFI ENGINEERING INC.Inventors: John Hull, Seyed Ehsan Jalilian
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Patent number: 11918030Abstract: Certain embodiments include a screen assembly of a vessel, where the screen assembly includes a plurality of fixed elements and a retainer, and the retainer includes a ring, a plurality of wedges disposed about the ring, and a plurality of keyholes at spaced locations about the ring. Each keyhole includes a bore and a slot extending from the bore into an adjacent wedge of the plurality of wedges, the slots have a width less than the bores, and the retainer may receive the fixed elements through the bores and may be rotated in a relation with the plurality of fixed elements to bring the plurality of fixed elements into simultaneous engagement with the wedges.Type: GrantFiled: December 10, 2021Date of Patent: March 5, 2024Assignee: Philip Morris USA Inc.Inventors: Nathaniel Hull, Adam Lisbeth, William Sammler, John Tilley
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Publication number: 20240003765Abstract: A system and method for detecting dynamic strain of a housing. The system includes an optical fiber linearly affixed along a surface of a length of the housing and an interrogator comprising a laser source and a photodetector. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths with a segment of the optical fiber extending between the FBGs. The segment of the optical fiber is linearly affixed along the surface of the housing. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.Type: ApplicationFiled: March 23, 2023Publication date: January 4, 2024Applicant: Hifi Engineering Inc.Inventors: John Hull, Seyed Ehsan Jalilian
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Patent number: 11786891Abstract: Quaternary ammonium tribromides and quaternary phosphonium tribromides are recovered from an organic solvent by washing with an aqueous hydrazine solution. The hydrazine reacts to form nitrogen, hydrobromic acid and a quaternary ammonium or quaternary phosphonium monobromide. The hydrobromic acid and quaternary ammonium or quaternary phosphonium migrate to the aqueous phase, thereby effecting the removal of the tribromides from the organic solvent. The hydrobromic acid can be neutralized with a quaternary ammonium or quaternary phosphonium hydroxide to produce a quaternary ammonium or quaternary phosphonium monobromide. The monobromides produced can be reacted with elemental bromine to regenerate a tribromide brominating agent.Type: GrantFiled: May 19, 2022Date of Patent: October 17, 2023Assignee: DDP SPECIALTY ELECTRONIC MATERIALS US, LLCInventors: Longyan Liao, Shari Kram, Mark Rickard, Yiyong He, John Hull, Jr.
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Patent number: 11630008Abstract: A system and method for detecting dynamic strain of a housing. The system includes an optical fiber linearly affixed along a surface of a length of the housing and an interrogator comprising a laser source and a photodetector. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths with a segment of the optical fiber extending between the FBGs. The segment of the optical fiber is linearly affixed along the surface of the housing. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.Type: GrantFiled: April 28, 2021Date of Patent: April 18, 2023Assignee: Hifi Engineering Inc.Inventors: John Hull, Seyed Ehsan Jalilian
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Publication number: 20220371969Abstract: This disclosure provides a composting system and method. The system comprises: (a) a container configured to contain a composition and comprising (i) insulated walls, (ii) an air intake and (iii) a vent; and (b) a composition contained in the container. The composition comprises aerobic microorganisms, a carbon source and a nutrient source sufficient to support growth of the aerobic microorganisms. The container is sufficiently insulated so that heat generated by aerobic respiration is sufficiently retained in the container to maintain a heat gradient in the container. The container is dimensioned to generate a stack effect that moves air into the air intake, through the composition and out the vent. The moving air provides oxygen to support growth of aerobic microorganisms, making the stack effect self-sustaining as long as a carbon source and nutrients last. The insulation can maintain temperatures in the composting cell sufficient to kill pathogenic microorganisms.Type: ApplicationFiled: March 1, 2022Publication date: November 24, 2022Inventor: John Hulls
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Publication number: 20220370994Abstract: Quaternary ammonium tribromides and quaternary phosphonium tribromides are recovered from an organic solvent by washing with an aqueous hydrazine solution. The hydrazine reacts to form nitrogen, hydrobromic acid and a quaternary ammonium or quaternary phosphonium monobromide. The hydrobromic acid and quaternary ammonium or quaternary phosphonium migrate to the aqueous phase, thereby effecting the removal of the tribromides from the organic solvent. The hydrobromic acid can be neutralized with a quaternary ammonium or quaternary phosphonium hydroxide to produce a quaternary ammonium or quaternary phosphonium monobromide. The monobromides produced can be reacted with elemental bromine to regenerate a tribromide brominating agent.Type: ApplicationFiled: May 19, 2022Publication date: November 24, 2022Inventors: Longyan LIAO, Shari KRAM, Mark RICKARD, Yiyong HE, John HULL, JR.
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Patent number: 11441740Abstract: Various embodiments provide a method of simulating a leak in a pipeline. The method includes: receiving a fluid stream from a fluid supply; and outputting the received fluid stream through an outlet such that the received fluid stream hits an outer surface of the pipeline at a location opposite the outlet such that a vibration is caused in the pipeline. Some other embodiments provide a corresponding system for simulating a leak in a pipeline, and a corresponding outlet for coupling a conduit to a pipeline.Type: GrantFiled: July 6, 2020Date of Patent: September 13, 2022Assignee: Hifi Engineering Inc.Inventors: John Hull, Seyed Ehsan Jalilian, Oleksiy Pletnyov
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Patent number: 11428885Abstract: There are described methods and systems for deploying optical fiber within a conduit. In one aspect, an optical fiber injector comprising a pressure vessel having a fluid inlet and a fluid outlet. The fluid outlet is engaged with an open end of the conduit. A length of optical fiber is provided within the pressure vessel. The optical fiber is then jetted into the conduit by injecting a fluid into the pressure vessel via the fluid inlet. The optical fiber injector is configured such that the fluid is directed from the fluid inlet to the fluid outlet, and urges the optical fiber to move through the conduit, thereby deploying the optical fiber within the conduit. In a further aspect, there is provided a modular assembly comprising a pipeline and a line of two or more conduits arranged end-to-end. Each pair of opposing ends of adjacent conduits is connected together by a separate splice box. The line is positioned along and adjacent to a length of the pipeline.Type: GrantFiled: November 10, 2020Date of Patent: August 30, 2022Assignee: HIFI ENGINEERING INC.Inventors: John Hull, Neil Gulewicz, Robert Sokolowski, Oleksiy Pletnyov, Souheil Merhi, Philip Cheuk, Seyed Ehsan Jalilian
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Patent number: 11313744Abstract: A system and method for detecting dynamic strain of a housing. The system includes an optical fiber linearly affixed along a surface of a length of the housing and an interrogator comprising a laser source and a photodetector. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths with a segment of the optical fiber extending between the FBGs. The segment of the optical fiber is linearly affixed along the surface of the housing. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.Type: GrantFiled: February 8, 2019Date of Patent: April 26, 2022Assignee: Hifi Engineering Inc.Inventors: John Hull, Seyed Ehsan Jalilian
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Publication number: 20220057275Abstract: There is described an apparatus for testing whether a fiber optic monitoring system is functioning properly. The apparatus includes an enclosure comprising one or more apertures for receiving therethrough optical fiber; and one or more actuators sealed within the enclosure for generating one or more interference signals for interfering with optical fiber within the enclosure such that an optical path length of the optical fiber is altered. There is also described a method for verifying an event detection system, comprising: interrogating optical fiber positioned alongside a conduit by sending one or more light pulses along the optical fiber and receiving reflections of the one or more light pulses; and using a event verification device housed within an enclosure through which passes the optical fiber to generate one or more interference signals for interfering with the optical fiber such that an optical path length of the optical fiber is altered.Type: ApplicationFiled: December 2, 2019Publication date: February 24, 2022Inventors: John Hull, Seyed Ehsan Jalilian
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Patent number: 11243122Abstract: Described are methods and systems using optical fiber interferometry to sense interference causing events in a region of interest and differentiate between a strain event and a thermal event. Other methods and systems relate to the use of optical fiber interferometry for determining temperature offset in a region of interest and using the determined temperature offset for determining temperature in the region of interest.Type: GrantFiled: March 19, 2019Date of Patent: February 8, 2022Assignee: Hifi Engineering Inc.Inventors: John Hull, Seyed Ehsan Jalilian
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Publication number: 20210247250Abstract: A system and method for detecting dynamic strain of a housing. The system includes an optical fiber linearly affixed along a surface of a length of the housing and an interrogator comprising a laser source and a photodetector. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths with a segment of the optical fiber extending between the FBGs. The segment of the optical fiber is linearly affixed along the surface of the housing. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.Type: ApplicationFiled: April 28, 2021Publication date: August 12, 2021Applicant: Hifi Engineering Inc.Inventors: John Hull, Seyed Ehsan Jalilian
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Patent number: 11085758Abstract: Methods, systems, and techniques for determining whether an event has occurred from dynamic strain measurements involve determining, using a processor, at least one event parameter from a signal representing the dynamic strain measurements, and then having the processor use the at least one event parameter to determine whether the event has occurred. The at least one event parameter is any one or more of a measure of magnitude of the signal, frequency centroid of the signal, filtered baseline of the signal, harmonic power of the signal, and time-integrated spectrum flux of the signal.Type: GrantFiled: February 28, 2020Date of Patent: August 10, 2021Assignee: Hifi Engineering, Inc.Inventors: Seyed Ehsan Jalilian, John Hull, Daniel Huang, Adekunle Adeyemi
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Patent number: 11002620Abstract: A device and system for detecting dynamic strain. The device comprises a longitudinally extending carrier and an optical fiber embedded along an outer surface of a length of the carrier. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths. The system comprises the device and an interrogator comprising a laser source and a photodetector. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.Type: GrantFiled: November 8, 2019Date of Patent: May 11, 2021Assignee: Hifi Engineering Inc.Inventors: John Hull, Seyed Ehsan Jalilian
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Patent number: 10981296Abstract: A system and method for preheating a thermoplastic charge are disclosed. A gas moving unit establishes a flow of a gas through a conduit. A heating assembly is positioned between an inlet and an outlet of the conduit. A holding vessel is in fluid communication with the conduit and houses a thermoplastic particulate material. The thermoplastic particulate material includes a thermoplastic matrix material. The thermoplastic particulate material is introduced to the flow of the gas to yield a gas-particulate mixture. At least one of the gas and the gas-particulate mixture, moving through the conduit, is heated using the heating assembly to yield a heated gas-particulate mixture. The heated gas-particulate mixture is deposited into a mold from the outlet of the conduit.Type: GrantFiled: May 22, 2019Date of Patent: April 20, 2021Assignee: The Boeing CompanyInventors: Landon K. Henson, John Hull
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Publication number: 20210088188Abstract: Various embodiments provide a method of simulating a leak in a pipeline. The method includes: receiving a fluid stream from a fluid supply; and outputting the received fluid stream through an outlet such that the received fluid stream hits an outer surface of the pipeline at a location opposite the outlet such that a vibration is caused in the pipeline. Some other embodiments provide a corresponding system for simulating a leak in a pipeline, and a corresponding outlet for coupling a conduit to a pipeline.Type: ApplicationFiled: July 6, 2020Publication date: March 25, 2021Applicant: Hifi Engineering Inc.Inventors: John Hull, Seyed Ehsan Jalilian, Oleksiy Pletnyov
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Publication number: 20210055494Abstract: There are described methods and systems for deploying optical fiber within a conduit. In one aspect, an optical fiber injector comprising a pressure vessel having a fluid inlet and a fluid outlet. The fluid outlet is engaged with an open end of the conduit. A length of optical fiber is provided within the pressure vessel. The optical fiber is then jetted into the conduit by injecting a fluid into the pressure vessel via the fluid inlet. The optical fiber injector is configured such that the fluid is directed from the fluid inlet to the fluid outlet, and urges the optical fiber to move through the conduit, thereby deploying the optical fiber within the conduit. In a further aspect, there is provided a modular assembly comprising a pipeline and a line of two or more conduits arranged end-to-end. Each pair of opposing ends of adjacent conduits is connected together by a separate splice box. The line is positioned along and adjacent to a length of the pipeline.Type: ApplicationFiled: November 10, 2020Publication date: February 25, 2021Inventors: John Hull, Neil Gulewicz, Robert Sokolowski, Oleksiy Pletnyov, Souheil Merhi, Philip Cheuk, Seyed Ehsan Jalilian
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Publication number: 20200368939Abstract: A system and method for preheating a thermoplastic charge are disclosed. A gas moving unit establishes a flow of a gas through a conduit. A heating assembly is positioned between an inlet and an outlet of the conduit. A holding vessel is in fluid communication with the conduit and houses a thermoplastic particulate material. The thermoplastic particulate material includes a thermoplastic matrix material. The thermoplastic particulate material is introduced to the flow of the gas to yield a gas-particulate mixture. At least one of the gas and the gas-particulate mixture, moving through the conduit, is heated using the heating assembly to yield a heated gas-particulate mixture. The heated gas-particulate mixture is deposited into a mold from the outlet of the conduit.Type: ApplicationFiled: May 22, 2019Publication date: November 26, 2020Applicant: The Boeing CompanyInventors: Landon K. Henson, John Hull
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Patent number: 10838162Abstract: There are described methods and systems for deploying optical fiber within a conduit. In one aspect, an optical fiber injector comprising a pressure vessel having a fluid inlet and a fluid outlet. The fluid outlet is engaged with an open end of the conduit. A length of optical fiber is provided within the pressure vessel. The optical fiber is then jetted into the conduit by injecting a fluid into the pressure vessel via the fluid inlet. The optical fiber injector is configured such that the fluid is directed from the fluid inlet to the fluid outlet, and urges the optical fiber to move through the conduit, thereby deploying the optical fiber within the conduit. In a further aspect, there is provided a modular assembly comprising a pipeline and a line of two or more conduits arranged end-to-end. Each pair of opposing ends of adjacent conduits is connected together by a separate splice box. The line is positioned along and adjacent to a length of the pipeline.Type: GrantFiled: February 9, 2018Date of Patent: November 17, 2020Assignee: Hifi Engineering Inc.Inventors: John Hull, Neil Gulewicz, Robert Sokolowski, Oleksiy Pletnyov, Souheil Merhi, Philip Cheuk, Seyed Ehsan Jalilian