Patents by Inventor Douglas Keith

Douglas Keith 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: 20250112459
    Abstract: A power management device (PMD) may include one or more electrical components including at least one of a battery, a rectifier, an alternating current (AC) to direct current (DC) converter, or a DC to AC converter, where the one or more electrical components are configured to receive input power and provide output power to one or more loads. The PMD may also include a non-contact sensor suitable for distinguishing between a plurality of configurations of a keyed feature. The PMD may identify an accessory including a particular configuration of the keyed feature based on data from the non-contact sensor when the accessory is coupled with the power management device and adjust one or more configuration parameters of the power management device based on the identified accessory.
    Type: Application
    Filed: September 16, 2024
    Publication date: April 3, 2025
    Inventors: Bosko Mrkovic, Douglas Keith Maly
  • Publication number: 20250035044
    Abstract: A starting apparatus for a first gas turbine engine of a plurality of gas turbine engines of an aircraft. The apparatus includes an air turbine starter, an electric machine, and a controller. The controller is configured to receive an emergency restart command for the first gas turbine engine while the aircraft is in-flight, determine whether the first gas turbine engine is in operation, determine whether at least a second gas turbine engine of the plurality of gas turbine engines is in operation, and, responsive to receiving the emergency restart command and determining that at least the second gas turbine engine of the plurality of gas turbine engines is in operation and that the first gas turbine engine is not in operation, perform an emergency restart of the first gas turbine engine.
    Type: Application
    Filed: July 28, 2023
    Publication date: January 30, 2025
    Inventors: Jeffrey Lawrence, Peter Schenk, Douglas Keith Schetzel, II, Jacob Ward Harral, Brian Joseph Huber
  • Publication number: 20250018175
    Abstract: A supportive clothing article is provided for a wearable cardioverter defibrillator (WCDA belt includes a first end with a first portion of a fastener and a second end with a second portion of the fastener. The belt is structured to fasten around the torso of patient below the chest area of the patient. The belt includes a first conductive mesh portion adjacent the first end of the belt or the second end of the belt, two straps. A back portion extends from the belt at an intermediary position on the belt to each of the two straps. The back portion includes a conductive mesh, a first support receptacle attached to and extending from the belt and attachable to one of the two straps, and a second support receptacle attached to and extending from the belt and attachable to the other of the two straps.
    Type: Application
    Filed: September 18, 2024
    Publication date: January 16, 2025
    Applicant: WEST AFFUM HOLDINGS DAC
    Inventors: Laura Marie Gustavson, Kerstin Dorst, Angela M. Stewart, Pamela F. Breske, Amanda K. Hall, Garrett McCann Kotlarchik, Dallas Eugene Meeker, Daniel James Finney, Eduard Johann Deml, Robert Reuben Buchanan, David Peter Finch, Phillip D. Foshee, JR., Douglas Keith Medema, Kenneth F. Cowan
  • Patent number: 12180894
    Abstract: An example system includes a first gas-turbine engine configured to propel an aircraft, the first gas-turbine engine comprising a first electric starter, the first electric starter configured to rotate a spool of the first gas-turbine engine; and one or more controllers collectively configured to: cause, following operation of the first gas-turbine engine, the first electric starter to perform barring of the first gas-turbine engine; measure, during the barring of the first gas-turbine engine, values of one or more parameters of the first gas-turbine engine; and determine, based on the values of the one or more parameters, whether the first electric starter is available for use in performing mid-air restart of the first gas-turbine engine.
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: December 31, 2024
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.
    Inventors: Jeffrey Lawrence, Brian Joseph Huber, Erik A. Munevar, Douglas Keith Schetzel, II
  • Patent number: 12115366
    Abstract: A supportive clothing article for a wearable cardioverter defibrillator (WCD), including a belt, the belt including a first end with a first portion of a fastener and a second end with a second portion of the fastener, wherein the belt is structured to fasten around the torso of patient below the chest area of the patient, the belt including a first conductive mesh portion adjacent the first end of the belt or the second end of the belt, two straps, a back portion extending from the belt at an intermediary position on the belt to each of the two straps, the back portion including a conductive mesh, a first support receptacle attached to and extending from the belt and attachable to one of the two straps, and a second support receptacle attached to and extending from the belt and attachable to the other of the two straps.
    Type: Grant
    Filed: March 3, 2023
    Date of Patent: October 15, 2024
    Assignee: West Affum Holdings Designated Activity
    Inventors: Laura Marie Gustavson, Kerstin Dorst, Angela M. Stewart, Pamela F. Breske, Amanda K. Hall, Garrett McCann Kotlarchik, Dallas Eugene Meeker, Daniel James Finney, Eduard Johann Deml, Robert Reuben Buchanan, David Peter Finch, Phillip Dewey Foshee, Jr., Douglas Keith Medema, Kenneth F. Cowan
  • Patent number: 11959431
    Abstract: An internal combustion engine with an open-loop or closed-loop control device (2), wherein at least one combustion chamber (3) of the internal combustion engine (1) is designed to burn a fuel-air mixture using at least one combustion parameters that can be influenced by the open-loop or closed-loop control device (2), wherein the open-loop or closed-loop control device (2) has an emission control loop that is configured to actuate the at least one actuator that influences the at least one combustion parameter as a substitute parameter for NOx emissions by means of a functional relationship in such way that at last one combustion parameter can be set for each target or actual power rating of the internal combustion engine (1), wherein the functional relationship takes account of an influence of a change of the exhaust backpressure (p3?) affecting at least one combustion chamber (3).
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: April 16, 2024
    Assignee: Innio Jenbacher GmbH & Co OG
    Inventors: Douglas Keith, Josef Thalhauser, Nikolaus Spyra
  • Publication number: 20230372702
    Abstract: In embodiments, a wearable cardiac defibrillation (WCD) system includes one or more flexible ECG electrodes. The WCD system may have a support structure that is dimensioned to be worn so as to press the electrodes towards the body of the patient. The electrodes may be made from appropriate material so as to flex in order to match a contour of the body of the patient. An advantage over the prior art is that the flexible electrode may make better electrical contact with the patient's skin, and therefore provide a better ECG signal for the WCD system to perform its diagnosis.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 23, 2023
    Applicant: West Affum Holdings DAC
    Inventors: William Edward Crone, Dallas Eugene Meeker, Robert Reuben Buchanan, Douglas Keith Medema, David Peter Finch, Laura Marie Gustavson, Daniel James Finney
  • Publication number: 20230313753
    Abstract: An internal combustion engine with an open-loop or closed-loop control device (2), wherein at least one combustion chamber (3) of the internal combustion engine (1) is designed to burn a fuel-air mixture using at least one combustion parameters that can be influenced by the open-loop or closed-loop control device (2), wherein the open-loop or closed-loop control device (2) has an emission control loop that is configured to actuate the at least one actuator that influences the at least one combustion parameter as a substitute parameter for NOx emissions by means of a functional relationship in such way that at last one combustion parameter can be set for each target or actual power rating of the internal combustion engine (1), wherein the functional relationship takes account of an influence of a change of the exhaust backpressure (p3’) affecting at least one combustion chamber (3).
    Type: Application
    Filed: January 31, 2023
    Publication date: October 5, 2023
    Inventors: Douglas Keith, Josef Thalhauser, Nikolaus Spyra
  • Patent number: 11745006
    Abstract: In embodiments, a wearable cardiac defibrillation (WCD) system includes one or more flexible ECG electrodes. The WCD system may have a support structure that is dimensioned to be worn so as to press the electrodes towards the body of the patient. The electrodes may be made from appropriate material so as to flex in order to match a contour of the body of the patient. An advantage over the prior art is that the flexible electrode may make better electrical contact with the patient's skin, and therefore provide a better ECG signal for the WCD system to perform its diagnosis.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: September 5, 2023
    Assignee: West Affum Holdings DAC
    Inventors: William Edward Crone, Dallas Eugene Meeker, Robert Rueben Buchanan, Douglas Keith Medema, David Peter Finch, Laura Marie Gustavson, Daniel James Finney
  • Publication number: 20230201571
    Abstract: A supportive clothing article for a wearable cardioverter defibrillator (WCD), including a belt, the belt including a first end with a first portion of a fastener and a second end with a second portion of the fastener, wherein the belt is structured to fasten around the torso of patient below the chest area of the patient, the belt including a first conductive mesh portion adjacent the first end of the belt or the second end of the belt, two straps, a back portion extending from the belt at an intermediary position on the belt to each of the two straps, the back portion including a conductive mesh, a first support receptacle attached to and extending from the belt and attachable to one of the two straps, and a second support receptacle attached to and extending from the belt and attachable to the other of the two straps.
    Type: Application
    Filed: March 3, 2023
    Publication date: June 29, 2023
    Applicant: WEST AFFUM HOLDINGS DAC
    Inventors: Laura Marie Gustavson, Kerstin Dorst, Angela M. Stewart, Pamela F. Breske, Amanda K. Hall, Garrett McCann Kotlarchik, Dallas Eugene Meeker, Daniel James Finney, Eduard Johann Deml, Robert Reuben Buchanan, David Peter Finch, Phillip Dewey Foshee, JR., Douglas Keith Medema, Kenneth F. Cowan
  • Patent number: 11617880
    Abstract: A supportive clothing article for a wearable cardioverter defibrillator (WCD), including a belt, the belt including a first end with a first portion of a fastener and a second end with a second portion of the fastener, wherein the belt is structured to fasten around the torso of patient below the chest area of the patient, the belt including a first conductive mesh portion adjacent the first end of the belt or the second end of the belt, two straps, a back portion extending from the belt at an intermediary position on the belt to each of the two straps, the back portion including a conductive mesh, a first support receptacle attached to and extending from the belt and attachable to one of the two straps, and a second support receptacle attached to and extending from the belt and attachable to the other of the two straps.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: April 4, 2023
    Assignee: West Affum Holdings DAC
    Inventors: Laura Marie Gustavson, Kerstin Dorst, Angela M. Stewart, Pamela Breske, Jr., Amanda K. Hall, Garrett McCann Kotlarchik, Dallas Eugene Meeker, Daniel James Finney, Eduard Johann Deml, Robert Reuben Buchanan, David Peter Finch, Phillip Dewey Foshee, Jr., Douglas Keith Medema, Kenneth F. Cowan
  • Patent number: 11590471
    Abstract: A device for loading pellets into reactor tubes includes a portable loading box with a bottom wall defining an opening, a loading tube projecting downwardly from the opening, and a movable dam for dividing said loading box into separate chambers.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: February 28, 2023
    Assignee: Tubemaster, Inc.
    Inventors: Clifford L Johns, Dennis Patrick McAndrews, Douglas Keith Cornett
  • Patent number: 11566576
    Abstract: An internal combustion engine with an open-loop or closed-loop control device (2), wherein at least one combustion chamber (3) of the internal combustion engine (1) is designed to burn a fuel-air mixture using at least one combustion parameters that can be influenced by the open-loop or closed-loop control device (2), wherein the open-loop or closed-loop control device (2) has an emission control loop that is configured to actuate the at least one actuator that influences the at least one combustion parameter as a substitute parameter for NOx emissions by means of a functional relationship in such way that at last one combustion parameter can be set for each target or actual power rating of the internal combustion engine (1), wherein the functional relationship takes account of an influence of a change of the exhaust backpressure (p3?) affecting at least one combustion chamber (3).
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: January 31, 2023
    Assignee: Innio Jenbacher GmbH & Co OG
    Inventors: Douglas Keith, Josef Thalhauser, Nikolaus Spyra
  • Publication number: 20220231460
    Abstract: An example system can include a universal serial bus (USB) type C (USB-C) receptacle comprising a flexible locator tab that displaces responsive to insertion of a USB-C plug and the USB-C plug comprising a locator slot to mate with the flexible locator tab. The system can include surface-to-surface contacts between the USB-C receptacle and the USB-C plug when the USB-C plug and the USB-C receptacle are mated.
    Type: Application
    Filed: September 12, 2019
    Publication date: July 21, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Douglas Keith Markwardt, Jose Ticy Lo
  • Publication number: 20220175683
    Abstract: Softgels having improved stability of active pharmaceutical ingredients and methods of preparing the same are provided. In some embodiments, a softgel comprises a fill material composition and a softgel shell. In some embodiments, the fill material composition of the softgel comprises one or more active pharmaceutical ingredient (API); 2 to 15 wt. % povidone; 30 to 60 wt. % polyethylene glycol; and 0.5 to 5 wt. % propylene glycol, wherein the fill material composition has a pH of 3.75 or less. In some embodiments, the softgel shell is made from a softgel shell composition comprising an acidic component.
    Type: Application
    Filed: March 11, 2020
    Publication date: June 9, 2022
    Applicant: R.P. SCHERER TECHNOLOGIES, LLC
    Inventors: Douglas Keith DURHAM, Hitesh S. PATEL
  • Publication number: 20220178323
    Abstract: An internal combustion engine with an open-loop or closed-loop control device (2), wherein at least one combustion chamber (3) of the internal combustion engine (1) is designed to burn a fuel-air mixture using at least one combustion parameters that can be influenced by the open-loop or closed-loop control device (2), wherein the open-loop or closed-loop control device (2) has an emission control loop that is configured to actuate the at least one actuator that influences the at least one combustion parameter as a substitute parameter for NOx emissions by means of a functional relationship in such way that at last one combustion parameter can be set for each target or actual power rating of the internal combustion engine (1), wherein the functional relationship takes account of an influence of a change of the exhaust backpressure (p3?) affecting at least one combustion chamber (3).
    Type: Application
    Filed: March 4, 2019
    Publication date: June 9, 2022
    Inventors: Douglas Keith, Josef Thalhauser, Nikolaus Spyra
  • Patent number: 11278730
    Abstract: In embodiments, a wearable cardioverter defibrillator (WCD) system includes a support structure configured to be worn by an ambulatory patient, an energy storage module configured to store an electrical charge, at least one defibrillation electrode held on the patient while the patient is wearing the support structure, and sensors. The sensors may include a rotational measurement module, a magnetic field sensing module, a pulse detector and an ambient air pressure sensor. The sensors may gather multiple data about the patient, which can be used for better understanding of the patient's activities and ultimately a better-informed defibrillation decision.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: March 22, 2022
    Assignee: West Affum Holdings Corp.
    Inventor: Douglas Keith Medema
  • Publication number: 20210379363
    Abstract: In embodiments, a wearable cardiac defibrillation (WCD) system includes one or more flexible ECG electrodes. The WCD system may have a support structure that is dimensioned to be worn so as to press the electrodes towards the body of the patient. The electrodes may be made from appropriate material so as to flex in order to match a contour of the body of the patient. An advantage over the prior art is that the flexible electrode may make better electrical contact with the patient's skin, and therefore provide a better ECG signal for the WCD system to perform its diagnosis.
    Type: Application
    Filed: August 18, 2021
    Publication date: December 9, 2021
    Applicant: West Affum Holdings Corp.
    Inventors: William Edward Crone, Dallas Eugene Meeker, Robert Rueben Buchanan, Douglas Keith Medema, David Peter Finch, Laura Marie Gustavson, Daniel James Finney
  • Publication number: 20210316134
    Abstract: A supportive clothing article for a wearable cardioverter defibrillator (WCD), including a belt, the belt including a first end with a first portion of a fastener and a second end with a second portion of the fastener, wherein the belt is structured to fasten around the torso of patient below the chest area of the patient, the belt including a first conductive mesh portion adjacent the first end of the belt or the second end of the belt, two straps, a back portion extending from the belt at an intermediary position on the belt to each of the two straps, the back portion including a conductive mesh, a first support receptacle attached to and extending from the belt and attachable to one of the two straps, and a second support receptacle attached to and extending from the belt and attachable to the other of the two straps.
    Type: Application
    Filed: February 22, 2021
    Publication date: October 14, 2021
    Applicant: West Affum Holdings Corp.
    Inventors: Laura Marie Gustavson, Kerstin Dorst, Angela M. Stewart, Pamela Breske, JR., Amanda K. Hall, Garrett McCann Kotlarchik, Dallas Eugene Meeker, Daniel James Finney, Eduard Johann Deml, Robert Reuben Buchanan, David Peter Finch, Phillip Dewey Foshee, JR., Douglas Keith Medema, Kenneth F. Cowan
  • Patent number: 11097094
    Abstract: In embodiments, a wearable cardiac defibrillation (WCD) system includes one or more flexible ECG electrodes. The WCD system may have a support structure that is dimensioned to be worn so as to press the electrodes towards the body of the patient. The electrodes may be made from appropriate material so as to flex in order to match a contour of the body of the patient. An advantage over the prior art is that the flexible electrode may make better electrical contact with the patient's skin, and therefore provide a better ECG signal for the WCD system to perform its diagnosis.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: August 24, 2021
    Assignee: West Affum Holdings Corp.
    Inventors: William Edward Crone, Dallas Eugene Meeker, Robert Rueben Buchanan, Douglas Keith Medema, David Peter Finch, Laura Marie Gustavson, Daniel James Finney