Patents by Inventor Ian A. Stewart

Ian A. Stewart 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: 20240078129
    Abstract: An example non-transitory machine-readable medium includes instructions that cause a processor of a computing device to create a first virtual machine using a hypervisor, execute a trusted basic input/output system (BIOS) in the first virtual machine, create a second virtual machine using the hypervisor, and execute an untrusted BIOS component in the second virtual machine. The first virtual machine is executed with a greater privilege to access a resource of the computing device than the second virtual machine.
    Type: Application
    Filed: January 29, 2021
    Publication date: March 7, 2024
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Christopher Howard Stewart, Richard Alden Bramley, Jr., James Misra McKenzie, Krzysztof Tadeusz Uchronski, Gianluca Guida, Christopher Ian Dalton, Jeffrey Kevin Jeansonne
  • Patent number: 11862826
    Abstract: The present invention relates to a method for determining the compressive tensile force acting on a fuel cell stack due to at least one tensioning element. Thereby, the compressive tensile force is the overall tensile force compressing the fuel cell stack. This is determined according to the invention by means of acoustic measurements on vibratable sections of the tensioning elements. The subject matter of the invention also includes a data processing program for carrying out the method according to the invention along with the use of a smartphone for carrying out the method according to the invention.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: January 2, 2024
    Assignees: Volkswagen AG, Audi AG
    Inventors: Ian Stewart, Tegan Harrower, Matej Kusy
  • Patent number: 11848469
    Abstract: A fuel cell system comprises a clamping system for a fuel cell stack, the clamping system including a plurality of disc springs. The disc springs are connected together in a bonded and/or force-fitting manner on a plane perpendicular to an axis of rotational symmetry running through the center of the circle described by the disc.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: December 19, 2023
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventors: Ian Stewart, Campbell Perry, Amy Warkentin
  • Patent number: 11529447
    Abstract: A method of peritoneal removal of electrolytes and inflammatory mediators. The method begins with infusing a treatment solution into the peritoneal cavity of a patient by way of a catheter. The treatment solution is drained from the peritoneal cavity by way of the catheter. During the draining, the treatment solution is filtered for removing electrolytes and inflammatory mediators.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: December 20, 2022
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Ian Stewart, Jonathan Sosnov, James Ross
  • Patent number: 11471116
    Abstract: A medical device including a sleeve, one or more inflatable cells, a pump, a conduit and a control unit for controlling the flow of fluid from the pump through the conduit.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 18, 2022
    Assignee: SWELLING SOLUTIONS, INC.
    Inventors: Carl Estcourt Tucker, Troy A. Baker, Graham Peter Wilson, Patrick Gerrard Linnane, Ian Stewart Tabron, Wayne Lee Bonnefin, Stefan Loof, Thomas Bergens
  • Patent number: 11346320
    Abstract: A wind turbine blade has a blade body and a leading edge fairing. The blade body has a root, a tip, and a longitudinal direction extending between the root and the tip. The 5 blade body also has a channel extending in the longitudinal direction. The leading edge fairing has a projection extending into the channel and extending in the longitudinal direction so as to be received in the channel. Also, a leading edge fairing for attachment to a blade body of a wind turbine blade; a method of fitting a leading edge fairing to a wind turbine blade; and a kit of parts with a number of the leading edge fairings.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: May 31, 2022
    Assignee: Vestas Wind Systems A/S
    Inventors: Gerner Larsen, Ian Stewart
  • Patent number: 11154451
    Abstract: A compression device for the foot including a wrap adapted to surround the foot, the wrap including at least two bladders which when inflated conform to the shape of the foot to provide compression, the bladders being positioned on the wrap so that a first bladder focuses compression on the heel of the foot and a second bladder focuses compression on the arch of the foot; a channel attached to each bladder for independently delivering fluid to each bladder; and a controller attached to the channels that generates and independently controls the flow of fluid to the bladders.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: October 26, 2021
    Assignee: Swelling Solutions, Inc.
    Inventors: Ian Stewart Tabron, Wayne Lee Bonnefin, Patrick Gerard Linnane, Anders Lennart Boström
  • Patent number: 11114678
    Abstract: A bipolar plate seal assembly for a fuel cell is provided. The bipolar plate seal assembly includes: a bipolar plate having a flow field for a reactant medium on at least one of its main sides, and a supply area arranged adjacent to the flow field, in which supply ports for feeding and discharging the reactant medium and optionally for feeding and discharging a coolant are arranged; and at least one seal assembly having an electrically insulating layer covering at least one or more sections of the supply area of the bipolar plate and having recesses that correspond to the supply ports of the bipolar plate, and for each recess, a seal circumferential thereto.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: September 7, 2021
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventors: Peter Bach, Andrew Desouza, Ian Stewart
  • Patent number: 11088373
    Abstract: A sealed membrane electrode assembly (MEA) and a method of sealing the MEA comprises the steps of providing a frame around a periphery of the MEA to form a framed MEA; providing a through-hole in the frame; placing the framed MEA into a seal mold, the seal mold comprising a reservoir region, a seal bead region, and at least one runner region; feeding a flow-processable seal material into the reservoir region in the seal mold that is aligned with the throughhole in the frame; feeding the flow-processable seal material from the reservoir region to the seal bead region through the at least one runner region; wherein a hydraulic diameter of the at least one runner region is less than a hydraulic diameter of the reservoir region.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: August 10, 2021
    Assignee: BALLARD POWER SYSTEMS INC.
    Inventors: Ian Stewart, Darcy McGowan, Emerson Gallagher
  • Publication number: 20210207576
    Abstract: A wind turbine blade has a blade body and a leading edge fairing. The blade body has a root, a tip, and a longitudinal direction extending between the root and the tip. The 5 blade body also has a channel extending in the longitudinal direction. The leading edge fairing has a projection extending into the channel and extending in the longitudinal direction so as to be received in the channel Also, a leading edge fairing for attachment to a blade body of a wind turbine blade; a method of fitting a leading edge fairing to a wind turbine blade; and a kit of parts with a number of the leading edge fairings.
    Type: Application
    Filed: May 29, 2019
    Publication date: July 8, 2021
    Inventors: Gerner Larsen, Ian Stewart
  • Publication number: 20210184234
    Abstract: The present invention relates to a method for determining the compressive tensile force acting on a fuel cell stack due to at least one tensioning element. Thereby, the compressive tensile force is the overall tensile force compressing the fuel cell stack. This is determined according to the invention by means of acoustic measurements on vibratable sections of the tensioning elements. The subject matter of the invention also includes a data processing program for carrying out the method according to the invention along with the use of a smartphone for carrying out the method according to the invention.
    Type: Application
    Filed: June 20, 2018
    Publication date: June 17, 2021
    Inventors: Ian STEWART, Tegan HARROWER, Matej KUSY
  • Patent number: 10964959
    Abstract: A seal (34) for a fuel cell (10), which includes multiple bipolar plates (13) and at least one membrane electrode assembly (12), the seal (34) having a seal body (40) surrounding a free inner chamber (42) is provided. It is provided that at least two flow barriers (46) pointing into the inner chamber (42) are formed as a single piece with the seal body (40), the flow barriers (46) being situated at a distance from the seal body (40) by at least one connecting element (48).
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: March 30, 2021
    Assignees: Volkswagen AG, Audi AG
    Inventors: Ian Stewart, Darcy McGowan
  • Publication number: 20210013537
    Abstract: A fuel cell system comprises a clamping system for a fuel cell stack, the clamping system including a plurality of disc springs. The disc springs are connected together in a bonded and/or force-fitting manner on a plane perpendicular to an axis of rotational symmetry running through the center of the circle described by the disc.
    Type: Application
    Filed: March 4, 2019
    Publication date: January 14, 2021
    Inventors: Ian STEWART, Campbell PERRY, Amy WARKENTIN
  • Patent number: 10790518
    Abstract: An electrical contact device for the diversion of electrical current from a fuel cell stack can have a plurality of electrically conductive contact regions which are delineated from each other. A plurality of electrically conductive first contact structures connects each, or a plurality of, the contact region(s) to an external load current circuit. Via at least one switching element arranged in a first contact structure, an electrically conductive connection may be disconnected by the first contact structure, in particular between at least one contact region and a load current circuit. In this way it is possible to adjust the overall resistance of the contact structure, and thus the Joule heat produced in the contact regions. Second contact structures that are arranged between the contact regions enable a further increased variability of the overall electrical resistance of the contact device.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: September 29, 2020
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventors: Ian Stewart, Bevan Hoskyn Moss
  • Publication number: 20200254168
    Abstract: A method of peritoneal removal of electrolytes and inflammatory mediators. The method begins with infusing a treatment solution into the peritoneal cavity of a patient by way of a catheter. The treatment solution is drained from the peritoneal cavity by way of the catheter. During the draining, the treatment solution is filtered for removing electrolytes and inflammatory mediators.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 13, 2020
    Applicant: Government of the United States as Represented by the Secretary of the Air Force
    Inventors: Ian Stewart, Jonathan Sosnov, James Ross
  • Patent number: 10731331
    Abstract: A sock anchor unit (10) comprises an inner longitudinal hollow spine (12), an outer fabric sleeve (14) arranged to envelop the outside surface of the inner hollow spine (12) such that a gap is defined between the outside surface of the inner hollow spine (12) and an inner surface of the outer fabric sleeve (14) and a plurality of elongated reinforcing members (22), wherein each elongated reinforcing member (22) extends longitudinally within the gap. The inner hollow spine (12) comprises at least one substantially laterally extending opening from inside to outside of the inner hollow spine (12). The opening allows cementitious fluid which is pumped into the anchor unit to fill the gap between the hollow spine (12) and outer fabric sleeve. A fastening member (28, 32) is provided on each end of the sock anchor unit (10).
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: August 4, 2020
    Inventors: Terence Foster, Benoit Pierre Augustin Pericard, Ian Stewart Alexander Murray
  • Publication number: 20190393518
    Abstract: A bipolar plate seal assembly for a fuel cell is provided. The bipolar plate seal assembly includes: a bipolar plate having a flow field for a reactant medium on at least one of its main sides, and a supply area arranged adjacent to the flow field, in which supply ports for feeding and discharging the reactant medium and optionally for feeding and discharging a coolant are arranged; and at least one seal assembly having an electrically insulating layer covering at least one or more sections of the supply area of the bipolar plate and having recesses that correspond to the supply ports of the bipolar plate, and for each recess, a seal circumferential thereto.
    Type: Application
    Filed: January 24, 2018
    Publication date: December 26, 2019
    Applicants: Volkswagen AG, Audi AG
    Inventors: Peter BACH, Andrew DESOUZA, Ian STEWART
  • Patent number: 10497947
    Abstract: A seal (34) for a fuel cell (10), which includes multiple bipolar plates (13) and at least one membrane electrode assembly (12), the seal (34) having a seal body (40) surrounding a free inner chamber (42) is provided. It is provided that at least two flow barriers (46) pointing into the inner chamber (42) are formed as a single piece with the seal body (40), the flow barriers (46) being situated at a distance from the seal body (40) by at least one connecting element (48).
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 3, 2019
    Assignees: Volkswagen AG, Audi AG
    Inventors: Ian Stewart, Darcy McGowan
  • Publication number: 20190360193
    Abstract: A sock anchor unit (10) comprises an inner longitudinal hollow spine (12), an outer fabric sleeve (14) arranged to envelop the outside surface of the inner hollow spine (12) such that a gap is defined between the outside surface of the inner hollow spine (12) and an inner surface of the outer fabric sleeve (14) and a plurality of elongated reinforcing members (22), wherein each elongated reinforcing member (22) extends longitudinally within the gap. The inner hollow spine (12) comprises at least one substantially laterally extending opening from inside to outside of the inner hollow spine (12). The opening allows cementitious fluid which is pumped into the anchor unit to fill the gap between the hollow spine (12) and outer fabric sleeve. A fastening member (28, 32) is provided on each end of the sock anchor unit (10).
    Type: Application
    Filed: January 17, 2018
    Publication date: November 28, 2019
    Inventors: Terence FOSTER, Benoit Pierre Augustin PERICARD, Ian Stewart Alexander MURRAY
  • Publication number: 20190356000
    Abstract: A seal (34) for a fuel cell (10), which includes multiple bipolar plates (13) and at least one membrane electrode assembly (12), the seal (34) having a seal body (40) surrounding a free inner chamber (42) is provided. It is provided that at least two flow barriers (46) pointing into the inner chamber (42) are formed as a single piece with the seal body (40), the flow barriers (46) being situated at a distance from the seal body (40) by at least one connecting element (48).
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Inventors: Ian Stewart, Darcy McGowan