Patents by Inventor Henry Hill

Henry Hill 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).

  • Publication number: 20240385232
    Abstract: A system for automatically locking a control laser in a Rydberg atomic sensor may comprise an atomic vapor cell, a probe laser configured to excite the atoms in the atomic vapor cell to an intermediate energy state, and a control laser configured to excite the one or more atoms in the atomic vapor cell from the intermediate energy state to a higher energy state. The light generated by the control laser may be dithered at a pre-determined frequency. The system further comprises a photodiode configured to convert light received from the vapor cell into an electrical signal, a lock-in amplifier configured to generate an error signal based on the electrical signal received from the photo diode and a received reference oscillation frequency, and a servo configured to receive the generated error signal from the lock-in amplifier and adjust a frequency of the control laser based on the received error signal.
    Type: Application
    Filed: July 15, 2024
    Publication date: November 21, 2024
    Applicants: The MITRE Corporation, The United States of America as Represented by the Secretary of the Army
    Inventors: Charlie FANCHER, Bonnie L. MARLOW, Kathryn NICOLICH, Kelly BACKES, Neel MALVANIA, Kevin Christopher COX, David Henry MEYER, Paul D. KUNZ, Joshua Cartwright HILL, William Knox HOLLAND
  • Patent number: 12123293
    Abstract: A method for generating self-propped hydraulic fractures. In one embodiment, the method comprises injecting three fluid stages sequentially, each with successively higher viscosity, comprising a pad, a sealing slurry, and a displacement fluid which may be referred to as a sweep. Compositions of each of the three fluid stages are provided, each of which may be selected based upon characteristics of the formation being treated or upon one or more characteristics of the desired fracture.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: October 22, 2024
    Assignee: Quidnet Energy, Inc.
    Inventors: Howard Schmidt, Scott Wright, Bunker Hill, Henry Lau
  • Patent number: 12038465
    Abstract: A system for automatically locking a control laser in a Rydberg atomic sensor may comprise an atomic vapor cell, a probe laser configured to excite the atoms in the atomic vapor cell to an intermediate energy state, and a control laser configured to excite the one or more atoms in the atomic vapor cell from the intermediate energy state to a higher energy state. The light generated by the control laser may be dithered at a pre-determined frequency. The system further comprises a photodiode configured to convert light received from the vapor cell into an electrical signal, a lock-in amplifier configured to generate an error signal based on the electrical signal received from the photo diode and a received reference oscillation frequency, and a servo configured to receive the generated error signal from the lock-in amplifier and adjust a frequency of the control laser based on the received error signal.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: July 16, 2024
    Assignees: The MITRE Corporation, The United States of America as Represented by the Secretary of the Army
    Inventors: Charlie Fancher, Bonnie L. Marlow, Kathryn Nicolich, Kelly Backes, Neel Malvania, Kevin Christopher Cox, David Henry Meyer, Paul D. Kunz, Joshua Cartwright Hill, William Knox Holland
  • Publication number: 20240084640
    Abstract: An apparatus (10) for spoiling banknotes (103) arranged in a block formation within a cassette (100). The apparatus (10) comprises a cassette (100) for carrying a block of banknotes (103), a main housing (20) in which is located at least one cartridge (31) containing a spoiling fluid, and first and second spray bars (61, 62) extending from the housing (20). The spray bars (61, 62) are in fluid communication with the at least one cartridge (31), and the main housing (20) further comprises a valve (40) configured to release the spoiling fluid from the at least one cartridge (31) and into the spray bars (61, 62). In use, the first spray bar (61) extends across the length and proximate a first end of the block of banknotes (103) within the cassette (100) and the second spray bar (62) extends across the length and proximate a second end of the block of banknotes (103) within the cassette (100).
    Type: Application
    Filed: February 22, 2021
    Publication date: March 14, 2024
    Inventors: Steven Hill, Henry Hill
  • Patent number: 11473723
    Abstract: A hand-held lubrication device that allows for both one- and two-handed operation. The device utilizes a front-facing mounted trigger that actuates a rear-mounted plunger via two tie rods.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: October 18, 2022
    Assignee: Dualco, Inc.
    Inventors: D. L. Whitney Reed, Henry A. Hill, Jr., Israel Rodriguez
  • Publication number: 20200088348
    Abstract: A hand-held lubrication device that allows for both one- and two-handed operation. The device utilizes a front-facing mounted trigger that actuates a rear-mounted plunger via two tie rods.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 19, 2020
    Inventors: D.L. Whitney REED, Henry A. HILL, JR., Israel RODRIGUEZ
  • Patent number: 10002680
    Abstract: An apparatus for generating a pressure wave in a liquid medium is disclosed. The apparatus includes a plurality of pressure wave generators having respective moveable pistons, the pistons having respective control rods connected thereto. The apparatus also includes a plurality of transducers coupled to the liquid medium and means for causing the pistons of respective ones of the plurality of the pressure wave generators to be accelerated toward respective ones of the plurality of transducers. The apparatus further includes means for causing restraining forces to be applied to respective control rods to cause respective pistons to impact respective transducers at respective desired times and with respective desired amounts of kinetic energy such that the respective desired amounts of kinetic energy are converted into a pressure wave in the liquid medium.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: June 19, 2018
    Assignee: General Fusion Inc.
    Inventors: Michel Georges Laberge, Daniel Gelbart, Ross Henry Hill, Denis J. Connor
  • Publication number: 20160361688
    Abstract: The present invention relates to excitation of hydrocarbons for catalytic type oxidation reactions, and more particularly, to treatment of excess methane emissions in a natural gas fueled engine to promote relatively more efficient catalytic methane oxidation reactions.
    Type: Application
    Filed: June 11, 2015
    Publication date: December 15, 2016
    Inventors: Gordon J.J. BARTLEY, Ralph Henry HILL, JR.
  • Patent number: 9477174
    Abstract: This disclosure provides a method and system to adjust pixel density based on a weight and an accumulated pixel count of a printer cartridge. According to an exemplary method, the weight and the accumulated pixel count of the printer cartridge are calculated to determine a pixel density of the printer cartridge, and then a toner output of an associated printing device is adjusted if the pixel density is outside of a predefined pixel density threshold.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: October 25, 2016
    Assignee: Xerox Corporation
    Inventors: Alun Henry Hill, Timothy David Jonathan Spink
  • Patent number: 9042794
    Abstract: A method, non-transitory computer readable medium, and apparatus for aligning a bias transfer roll are disclosed. For example, the method detects a position of a paper, determines a position of the bias transfer roll, calculates an offset between the position of the paper and the position of the bias transfer roll and moves the bias transfer roll laterally by an amount of the offset to align the bias transfer roll to the paper.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: May 26, 2015
    Assignee: Xerox Corporation
    Inventors: Alun Henry Hill, John Barry Poxon, Simon Neil Jowett
  • Patent number: 8675077
    Abstract: An alignment metrology and resolution measurement system concurrently determines the alignment of an imaging array in six degrees of freedom relative to an external reference frame, and further determines the resolution of the imaging array. To achieve this, an image of at least three mask patterns is projected on the imaging array. First and second positions of the imaging array relative to first and second coordinate axis of the reference frame is obtained using pixel positions of the images along the first and second axis. A first rotational position of the imaging array about a third coordinate axis is obtained using pixel positions of the images along the first and second axes. The third position and the second and third rotational positions of the imaging array about the first and second coordinate axis are determined using feature widths of focus images of the patterns and distances between the mask patterns.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: March 18, 2014
    Assignee: Flir Systems, Inc.
    Inventors: Henry A. Hill, David W. Gardner
  • Patent number: 8417959
    Abstract: The present disclosure relates to an apparatus and/or method of identifying a user comprising illuminating a user with electromagnetic energy to induce luminescence and producing an output data signal. A reference data signal corresponding to the luminescence of a selected user may be identified and compared to the output data signal. In such a manner, an identification may be made as to whether a selected user is present.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: April 9, 2013
    Assignee: Southwest Research Institute
    Inventor: Ralph Henry Hill, Jr.
  • Patent number: 8364378
    Abstract: A method of operation of an electric turbocompounding system for a reciprocating engine comprises the steps of retrieving from the engine ECU data pertaining to engine condition, retrieving from a set of turbine efficiency data an optimum turbogenerator speed at the engine condition, setting a desired turbogenerator set speed based on the engine condition and on a speed at which turbine efficiency is deemed to be optimum, measuring an output voltage of the turbogenerator, comparing the measured voltage with a pre-determined voltage range and where the measured voltage falls outside of the pre-determined voltage range, adjusting the turbogenerator set speed to reduce or increase the output voltage to within the pre-determined voltage range.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: January 29, 2013
    Assignee: Bowman Power Group Limited
    Inventors: Tjerk Michiel De Graaff, Jonathon McGuire, Stephen Henry Hill, John Anthony Lyons
  • Patent number: 8134127
    Abstract: Techniques are disclosed relating to gas leak detection. The techniques can be deployed, for example, in compact, handheld portable devices usable for detecting leaks in space-confined applications. The devices generally include a non-laser light source and thermal imaging camera that allow for detection of a target gas (or gasses) that absorbs at least some of the light source's wavelengths of operation. The light source can be implemented, for example, with an incoherent infrared (IR) light source, such as a resonance lamp configured with a gas cell containing a volume of a gas that, when excited by electric discharge, emits a wavelength that is absorbed by the target gas.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: March 13, 2012
    Assignee: Southwest Research Institute
    Inventor: Ralph Henry Hill, Jr.
  • Patent number: 8085301
    Abstract: Techniques are disclosed relating to gas leak detection. The techniques can be deployed, for example, in compact, handheld portable devices usable for detecting leaks in space-confined applications. The devices generally include an unstablized laser and thermal imaging camera that allow for detection of gas that absorbs at least some of the wavelength of operation of the unstablized laser. The devices can be operated at a low-power density for safety and/or may be configured to mitigate wavelength hopping associated with unstablized laser light sources.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: December 27, 2011
    Assignee: Southwest Research Institute
    Inventors: Ralph Henry Hill, Jr., Joseph Nathan Mitchell
  • Publication number: 20110278458
    Abstract: Techniques are disclosed relating to gas leak detection. The techniques can be deployed, for example, in compact, handheld portable devices usable for detecting leaks in space-confined applications. The devices generally include a non-laser light source and thermal imaging camera that allow for detection of a target gas (or gasses) that absorbs at least some of the light source's wavelengths of operation. The light source can be implemented, for example, with an incoherent infrared (IR) light source, such as a resonance lamp configured with a gas cell containing a volume of a gas that, when excited by electric discharge, emits a wavelength that is absorbed by the target gas.
    Type: Application
    Filed: July 29, 2011
    Publication date: November 17, 2011
    Applicant: SOUTHWEST RESEARCH INSTITUTE
    Inventor: Ralph Henry HILL, Jr.
  • Publication number: 20110172894
    Abstract: A method of operation of an electric turbocompounding system for a reciprocating engine comprises the steps of retrieving from the engine ECU data pertaining to engine condition, retrieving from a set of turbine efficiency data an optimum turbogenerator speed at the engine condition, setting a desired turbogenerator set speed based on the engine condition and on a speed at which turbine efficiency is deemed to be optimum, measuring an output voltage of the turbogenerator, comparing the measured voltage with a pre-determined voltage range and where the measured voltage falls outside of the pre-determined voltage range, adjusting the turbogenerator set speed to reduce or increase the output voltage to within the pre-determined voltage range.
    Type: Application
    Filed: August 8, 2008
    Publication date: July 14, 2011
    Inventors: Tjerk Michiel De Graaff, Jonathon McGuire, Stephen Henry Hill, John Anthony Lyons
  • Patent number: 7894075
    Abstract: The disclosure features multiple degree-of-freedom interferometers (e.g., non-dispersive interferometers) for monitoring linear and angular (e.g., pitch and/or yaw) displacements of a measurement object with compensation for variations in the optical properties of a gas in the interferometer measurement (and/or reference) beam paths. The disclosure also features interferometry systems that feature an array of interferometers (e.g., including one or more multiple degree-of-freedom interferometer), each configured to provide different information about variations in the optical properties of the gas in the system. Multiple degree-of-freedom interferometers are also referred to as multi-axis interferometers.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: February 22, 2011
    Assignee: Zygo Corporation
    Inventor: Henry A. Hill
  • Patent number: 7826063
    Abstract: In general, in a first aspect, the invention features a method that includes using an interferometry assembly to provide three different output beams, each output beam including an interferometric phase related to an optical path difference between a corresponding first beam and a corresponding second beam, each first beam contacting a measurement object at least once, monitoring the interferometric phases for each of the three different output beams, and deriving information about variations in the optical properties of a gas in the first beam paths from the three monitored phases.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: November 2, 2010
    Assignee: Zygo Corporation
    Inventor: Henry A. Hill
  • Patent number: 7812964
    Abstract: In general, in one aspect, the invention features a system that includes a moveable stage, an interferometer configured to provide information about a first degree of freedom of the stage, an encoder configured to provide information about a second degree of freedom of the stage, and an electronic processor configured to monitor the position of the stage based on the information about the first and second degrees of freedom.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: October 12, 2010
    Assignee: Zygo Corporation
    Inventor: Henry A. Hill