Patents by Inventor Martin Willett
Martin Willett 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: 11774424Abstract: An integrated sensor for detecting gases present in an environment is provided. The integrated sensor comprises a first gas sensor and a second gas sensor. The first gas sensor is configured to measure a first gas and the second gas sensor is configured to measure a second gas. The first gas is different from the second gas. The first gas sensor is an optical sensor and defines an optical cavity. The second gas sensor is disposed within the optical cavity of the first gas sensor.Type: GrantFiled: March 23, 2021Date of Patent: October 3, 2023Assignee: Honeywell International Inc.Inventors: Martin Willett, Keith Pratt
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Publication number: 20220397297Abstract: Methods, apparatuses, and systems for monitoring gas leaks are disclosed herein. An example Heating Ventilation and Air Conditioning (HVAC) may comprise: a sampling tube fluidly coupled to a first opening defined in a conduit; and a sensor assembly fluidly coupled to the sampling tube. The sampling tube is positioned exterior to the conduit and extending along a direction of a gravitation force. The sensor assembly is configured to receive one or more gases that have a greater density in comparison to the ambient air and sense the one or more gases to generate a signal.Type: ApplicationFiled: June 11, 2021Publication date: December 15, 2022Inventors: Philip Foster, Aoife Celoria, Martin WILLETT
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Publication number: 20220308029Abstract: An integrated sensor for detecting gases present in an environment is provided. The integrated sensor comprises a first gas sensor and a second gas sensor. The first gas sensor is configured to measure a first gas and the second gas sensor is configured to measure a second gas. The first gas is different from the second gas. The first gas sensor is an optical sensor and defines an optical cavity. The second gas sensor is disposed within the optical cavity of the first gas sensor.Type: ApplicationFiled: March 23, 2021Publication date: September 29, 2022Applicant: Honeywell International Inc.Inventors: Martin Willett, Keith Pratt
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Patent number: 11275068Abstract: Apparatus and associated methods relate to height-differentiated gas detection sensors attached to one or more tethers suspended from an unmanned air vehicle (UAV) platform. In an illustrative example, each of the gas sensors, for example, may communicate gas detection signal information to a signal processing module onboard the UAV platform. Each of the tethers, for example, may provide a data channel from the sensor to the signal processing module. Some tethers, for example, may supply operating power to one or more of the gas detection sensors. The UAV platform may advantageously deploy one or more low-cost, disposable, tethered gas detection sensors into vertically confined spaces (e.g., chimneys, vents), or along a length of pipeline, for example. The sensors may be deployed at a minimum predetermined height providing separation from the UAV to attenuate prop-wash with respect to the sensors.Type: GrantFiled: October 30, 2018Date of Patent: March 15, 2022Assignee: HONEYWELL INTERNATIONAL INC.Inventor: Martin Willett
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Patent number: 11119037Abstract: Embodiments relate generally to electromagnetic radiation detector devices, systems, and methods using a planar Golay cell. A method for gas detection may comprise providing a gas sealed in a cavity of a gas detector; directing radiative power from a light source through one or more target gases and through a cell body of the gas detector toward the cavity and a wavelength selective absorber of the gas detector, wherein the one or more target gases are located between the light source and the cavity; setting wavelength sensitivity with the wavelength selective absorber, wherein the wavelength sensitivity is irrespective of an angle of incidence (?); absorbing the radiative power by the wavelength selective absorber and by the one or more target gases; detecting, by a pressure sensing element, a pressure change caused by the absorbing of the radiative power; and determining the one or more target gases based on the detected pressure change.Type: GrantFiled: October 30, 2017Date of Patent: September 14, 2021Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Wei Yang, Teresa M. Marta, Bernard Fritz, Martin Willett
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Publication number: 20200333244Abstract: Embodiments relate generally to electromagnetic radiation detector devices, systems, and methods using a planar Golay cell. A method for gas detection may comprise providing a gas sealed in a cavity of a gas detector; directing radiative power from a light source through one or more target gases and through a cell body of the gas detector toward the cavity and a wavelength selective absorber of the gas detector, wherein the one or more target gases are located between the light source and the cavity; setting wavelength sensitivity with the wavelength selective absorber, wherein the wavelength sensitivity is irrespective of an angle of incidence (?); absorbing the radiative power by the wavelength selective absorber and by the one or more target gases; detecting, by a pressure sensing element, a pressure change caused by the absorbing of the radiative power; and determining the one or more target gases based on the detected pressure change.Type: ApplicationFiled: October 30, 2017Publication date: October 22, 2020Inventors: Wei YANG, Teresa M. MARTA, Bernard FRITZ, Martin WILLETT
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Patent number: 10422740Abstract: Devices, methods, systems, and computer-readable media for a dual wavelength source gas sensor are described herein. One or more embodiments include a gas sensor, comprising: a dual wavelength source to transmit a first wavelength and a second wavelength via an optical path, wherein a gas is present through the optical path, a detector to receive the first wavelength and the second wavelength via the optical path, and a computing device coupled to the detector to determine an determine a signal intensity for the first wavelength and the second wavelength.Type: GrantFiled: July 5, 2016Date of Patent: September 24, 2019Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Teresa M. Marta, Martin Willett, Bernard Fritz
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Publication number: 20190128862Abstract: Apparatus and associated methods relate to height-differentiated gas detection sensors attached to one or more tethers suspended from an unmanned air vehicle (UAV) platform. In an illustrative example, each of the gas sensors, for example, may communicate gas detection signal information to a signal processing module onboard the UAV platform. Each of the tethers, for example, may provide a data channel from the sensor to the signal processing module. Some tethers, for example, may supply operating power to one or more of the gas detection sensors. The UAV platform may advantageously deploy one or more low-cost, disposable, tethered gas detection sensors into vertically confined spaces (e.g., chimneys, vents), or along a length of pipeline, for example. The sensors may be deployed at a minimum predetermined height providing separation from the UAV to attenuate prop-wash with respect to the sensors.Type: ApplicationFiled: October 30, 2018Publication date: May 2, 2019Inventor: Martin Willett
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Patent number: 9829428Abstract: Gas detector devices, systems, and methods using a Golay cell are described herein. One device includes a microphone having a front surface with a sound collecting aperture for receiving sound, a substrate, a gas cavity formed in the substrate such that the gas cavity is in gas communication with the sound collecting aperture and the front surface forms a side surface of the gas cavity, and a window abutting the substrate to form a side surface of the gas cavity.Type: GrantFiled: January 6, 2017Date of Patent: November 28, 2017Assignee: Honeywell International Inc.Inventors: Wei Yang, Teresa M. Marta, Martin Willett, Rodney R. Watts
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Publication number: 20170307518Abstract: Devices, methods, systems, and computer-readable media for a dual wavelength source gas sensor are described herein. One or more embodiments include a gas sensor, comprising: a dual wavelength source to transmit a first wavelength and a second wavelength via an optical path, wherein a gas is present through the optical path, a detector to receive the first wavelength and the second wavelength via the optical path, and a computing device coupled to the detector to determine an determine a signal intensity for the first wavelength and the second wavelength.Type: ApplicationFiled: July 5, 2016Publication date: October 26, 2017Inventors: Teresa M. Marta, Martin Willett, Bernard Fritz
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Patent number: 9689827Abstract: An electrochemical detector can be powered partly, or entirely by voltages generated by the sensor. Using either active circuits or a passive component which produces a predetermined voltage drop in the respective sensor, two electrode consumable anode oxygen sensors can be provided which do not evolve hydrogen during operation.Type: GrantFiled: October 9, 2013Date of Patent: June 27, 2017Assignee: Honeywell International Inc.Inventors: Keith Francis Edwin Pratt, Martin Willett, Lei Xiao, Ali Hosseinmardi
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Publication number: 20170115207Abstract: Gas detector devices, systems, and methods using a Golay cell are described herein. One device includes a microphone having a front surface with an sound collecting aperture for receiving sound, a substrate, a gas cavity formed in the substrate such that the gas cavity is in gas communication with the sound collecting aperture and the front surface forms a side surface of the gas cavity, and a window abutting the substrate to form a side surface of the gas cavity.Type: ApplicationFiled: January 6, 2017Publication date: April 27, 2017Inventors: Wei Yang, Teresa M. Marta, Martin Willett, Rodney R. Watts
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Publication number: 20170102318Abstract: Gas detector devices, systems, and methods using a Golay cell are described herein. One device includes a microphone having a front surface with an sound collecting aperture for receiving sound, a substrate, a gas cavity formed in the substrate such that the gas cavity is in gas communication with the sound collecting aperture and the front surface forms a side surface of the gas cavity, and a window abutting the substrate to form a side surface of the gas cavity.Type: ApplicationFiled: October 9, 2015Publication date: April 13, 2017Inventors: Wei Yang, Teresa M. Marta, Martin Willett, Rodney R. Watts
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Patent number: 9606049Abstract: Gas detector devices, systems, and methods using a Golay cell are described herein. One device includes a microphone having a front surface with an sound collecting aperture for receiving sound, a substrate, a gas cavity formed in the substrate such that the gas cavity is in gas communication with the sound collecting aperture and the front surface forms a side surface of the gas cavity, and a window abutting the substrate to form a side surface of the gas cavity.Type: GrantFiled: October 9, 2015Date of Patent: March 28, 2017Assignee: Honeywell International Inc.Inventors: Wei Yang, Teresa M. Marta, Martin Willett, Rodney R. Watts
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Publication number: 20150096905Abstract: An electrochemical detector can be powered partly, or entirely by voltages generated by the sensor. Using either active circuits or a passive component which produces a predetermined voltage drop in the respective sensor, two electrode consumable anode oxygen sensors can be provided which do not evolve hydrogen during operation.Type: ApplicationFiled: October 9, 2013Publication date: April 9, 2015Applicant: Honeywell International Inc.Inventors: Keith Francis Edwin PRATT, Martin WILLETT, Lei XIAO, Ali HOSSEINMARDI
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Patent number: 8741120Abstract: Devices and methods are disclosed that can adjust a hydration level in an electrochemical sensor or an instrument which includes such a sensor. The device can include a chamber which can, at least in part, surround an inflow port of the sensor. An adjacent reservoir of water can provide a source of water vapor which can be infused into the sensor.Type: GrantFiled: October 15, 2007Date of Patent: June 3, 2014Assignee: Life Safety Distribution AGInventors: John Chapples, Martin Willett
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Patent number: 8721970Abstract: A portable, relatively low power gas detector incorporates a single pellistor-type sensor for sensing an explosive gas of interest. Outputs from the sensor are corrected in accordance with ambient temperature and humidity and pre-stored correction factors based on characteristics exhibited by a plurality of similar sensors.Type: GrantFiled: January 20, 2009Date of Patent: May 13, 2014Assignee: Life Safety Distribution AGInventors: Martin Willett, Martin Jones
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Publication number: 20130174645Abstract: A method for photoacoustically sensing oxygen in a gaseous sample is disclosed, together with an apparatus for practicing the present method. Efficient and cost-effective oxygen sensing is provided by the use of a light source in the form of a light-emitting diode, which can be selected to correspond with the absorption spectra exhibited by oxygen in a gaseous sample. Filtering can be employed in order to control and narrow the wavelength of light emitted by the light source. An apparatus is disclosed which facilitates practice of the present method, including an arrangement by which ambient noise and vibration can be canceled.Type: ApplicationFiled: January 6, 2012Publication date: July 11, 2013Inventors: Martin Willett, Michael Poulter, Viorel Avramescu
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Patent number: 8215150Abstract: A docking station for use with gas sensors includes limited test and diagnostic circuitry directed to specific characteristics of selected detectors. Where a family of detectors is to be evaluated, a universal interface for that family can be included. A single port can be used for multiple different detectors irrespective of specific detector characteristics.Type: GrantFiled: February 20, 2009Date of Patent: July 10, 2012Assignee: Life Safety Distribution AGInventors: Martin Willett, Keith Francis Edwin Pratt
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Publication number: 20100212395Abstract: A docking station for use with gas sensors includes limited test and diagnostic circuitry directed to specific characteristics of selected detectors. Where a family of detectors is to be evaluated, a universal interface for that family can be included. A single port can be used for multiple different detectors irrespective of specific detector characteristics.Type: ApplicationFiled: February 20, 2009Publication date: August 26, 2010Applicant: Life Safety Distribution AGInventors: Martin Willett, Keith Francis Edwin Pratt