Patents by Inventor David A. Marshall

David A. Marshall 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).

  • Patent number: 12221971
    Abstract: A compressor has: a rotor and a shroud having a internal and external sides and an air outlet; an annular case mounted to the external side and enclosing a plenum, the annular case having inner and outer sides and defining an aperture; a valve mounted to the annular case at the aperture and having: a support secured to the annular case and defining a seat surrounding a bleed passage, the seat located on the outer side, the support defining a guiding aperture, and a valve member having a head and a stem slidably received within the guiding aperture, the valve member having a closed position and an open position, the head abutting the valve seat in the closed position and offset from the valve seat in the open position; and an actuator engaged to the valve member for moving the valve member between the closed position and the open position.
    Type: Grant
    Filed: November 30, 2023
    Date of Patent: February 11, 2025
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: David Menheere, Andrew Marshall
  • Patent number: 12201847
    Abstract: Certain examples involve a circadian effect light fixture. The circadian effect light fixture includes a controller to receive a modifying factor based on a circadian impact profile. The modifying factor includes an indication of an intensity value, a correlated color temperature value, and a color value over a range of time. The circadian effect light fixture also includes a first lighting element controlled by the controller to produce a first light output having a first intensity, a first correlated color temperature, and a first color value. Further, the circadian effect light fixture includes a second lighting element controlled by the controller to produce a second light output having a second intensity, a second correlated color temperature, and a second color value. A combined light output of the first lighting element and the second lighting element tracks the modifying factor over the range of time.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: January 21, 2025
    Assignee: ABL IP Holding LLC
    Inventors: David P. Ciccarelli, Daniel Aaron Weiss, Benjamin Marshall Suttles
  • Publication number: 20240384482
    Abstract: The invention is an elongate crash barrier extending along the carriage way of a road. It has a plurality of vertically spaced apart elongate retention members such as straps extending parallel the carriage way to help retain a vehicle errant from said road from passing beyond the retention members. The crash barrier further has a plurality of retainers held captive to said retention members yet able to slide along the retention members with an errant vehicle.
    Type: Application
    Filed: August 17, 2022
    Publication date: November 21, 2024
    Inventor: David Marshall HUDSON
  • Publication number: 20240229386
    Abstract: A road safety barrier installation system that uses a workstation and product support able to be guided by a truck along a road. The product supporter is adapted to receive a store of product such as ground penetrating anchors, posts and barrier strap. The workstation comprises at least one placement robot able robot able to receive and hold a said product, and position the so received and held product in location as part of the array.
    Type: Application
    Filed: February 22, 2022
    Publication date: July 11, 2024
    Applicant: ROBOS INTERNATIONAL LIMITED
    Inventor: David Marshall HUDSON
  • Publication number: 20240133137
    Abstract: A road safety barrier installation system that uses a workstation and product support able to be guided by a truck along a road. The product supporter is adapted to receive a store of product such as ground penetrating anchors, posts and barrier strap. The workstation comprises at least one placement robot able robot able to receive and hold a said product, and position the so received and held product in location as part of the array.
    Type: Application
    Filed: February 22, 2022
    Publication date: April 25, 2024
    Applicant: ROBOS INTERNATIONAL LIMITED
    Inventor: David Marshall HUDSON
  • Publication number: 20240117579
    Abstract: A roadside crash barrier configured for deflecting errant vehicles towards the road. The barrier comprising at least one tensioned flexible strap comprising a planar face facing the road in use. Compared to prior art systems, the present invention reduces the chances of injury to motorcyclists, as well as being fast and easy to install. A collapsible end anchor for holding the tension of the straps is also described herein, where the end anchor is configured to reduce vehicle rollover should end on impact occur whilst still retaining the effectiveness of the retained road barrier.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 11, 2024
    Inventor: David Marshall HUDSON
  • Publication number: 20230118059
    Abstract: A removable and replaceable battery pack includes a plurality of battery cells, an outer housing configured to encase the plurality of battery cells, a handle extending from the outer housing configured to be grasped by a user, an electrical connector located on a rear side of the outer housing, and a plurality of MOSFETs configured to control a current output to the electrical connector. The electrical connector includes a plurality of ports and is configured to electrically couple to a battery receptacle connector. Each of the plurality of MOSFETs is thermally coupled to the outer housing.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 20, 2023
    Inventors: Michael Gigot, Jacob Schmalz, Michael David Marshall
  • Patent number: 11609060
    Abstract: A blast attenuator for blast overpressure has features that allow for blast attenuation and ease of projectile loading from the muzzle of the weapon system. This combination of physical ease of use and blast reduction allows the system to achieve high levels of performance without making significant concessions to operator safety.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: March 21, 2023
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Robert Carson, David Marshall, Emanuel Tortorici, Francesco Tropiano, Christopher Aiello
  • Publication number: 20220228331
    Abstract: A roadside crash barrier configured for deflecting errant vehicles towards the road. The barrier comprising at least one tensioned flexible strap comprising a planar face facing the road in use. Compared to prior art systems, the present invention reduces the chances of injury to motorcyclists, as well as being fast and easy to install. A collapsible end anchor for holding the tension of the straps is also described herein, where the end anchor is configured to reduce vehicle rollover should end on impact occur whilst still retaining the effectiveness of the retained road barrier.
    Type: Application
    Filed: April 8, 2022
    Publication date: July 21, 2022
    Inventor: David Marshall HUDSON
  • Patent number: 11199376
    Abstract: This disclosure extends to systems, apparatus, and methods for the rapid deployment of a sling or strap on a rifle, firearm, tool, or implement from a storage mode to a deployment mode in a reliable and repeatable manner, while minimizing snagging, binding or tangling during storage or transport. In one exemplary system in accordance with the teachings of the present disclosure, a capture device may include a single closed loop interface adjacent to an open interface. A first strap may be looped through the closed interface and secured therein. Another portion of the sling system, such as a loop of strap or webbing may be secured by tensioning in the open interface to tightly secure the system against the rifle or tool in a secured position. By slightly loosening the loop, the secured portion can exit the open interface rapidly as the sling is deployed.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: December 14, 2021
    Assignee: Dark Horse Solutions, LLC
    Inventor: Bradley David Marshall
  • Patent number: 10816444
    Abstract: Disclosed are specimen processing systems capable of processing specimens carried on slides. The specimen processing systems comprise opposables having at least one fluid control element. The fluid control elements may be positioned between spacers or gapping elements the opposable edges. The fluid control elements may comprise an edge, such as a beveled edge or a stepped edge, as described herein, and the edge may be continuous or segmented.
    Type: Grant
    Filed: December 23, 2017
    Date of Patent: October 27, 2020
    Assignee: Ventana Medical Systems, Inc.
    Inventors: Donald Barnett, Chad Wilkinson, Brian Howard Kram, Kevin David Marshall, Christine Tse, Timothy James Keller, Austin Micheil Ashby
  • Patent number: 10796814
    Abstract: Insulated winding wires, winding wire articles, and associated formation methods are described. An insulated winding wire may include a conductor and insulation formed around the conductor. In certain embodiments, the insulation may include a first layer including a first parylene material and a second layer including a second parylene material different from the first parylene material. In other embodiments, the insulation may include one or more layers containing parylene formed over base insulation.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: October 6, 2020
    Assignee: Essex Group LLC
    Inventors: Allan R. Knerr, David Marshall Cain
  • Patent number: 10746448
    Abstract: A system includes a refrigerant compressor, an electric motor and configured to drive the refrigerant compressor, and a controller. The controller is configured to operate the compressor in a liquid clearing start mode where electrical current through the motor is prevented from exceeding a predetermined current limit for a period of time not to exceed a predetermined period of time, and is configured to operate the compressor in a run mode in response to determining the motor exceeds a predetermined speed threshold at or before expiration of the predetermined period of time, wherein the run mode does not prevent electrical current through the motor from exceeding said predetermined current limit.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: August 18, 2020
    Assignee: Trane International Inc.
    Inventors: Benjamin James Sykora, Nathan Thomas West, David Marshall Foye, Dennis Myron Beekman, Korwin Jay Anderson, Robert Bakkestuen
  • Patent number: 10746752
    Abstract: A specimen processing system is capable of processing specimens carried on slides. The specimen processing system can sequentially deliver slides and opposables to specimen processing stations. The specimen processing stations can use the opposables to apply a series of liquids to the specimens. The applied liquid can be moved along the slide using capillary action while the specimen processing stations control the processing temperatures. The applied liquid can be in a fluid-carrying gap. The opposable can contact the slide to vary a cross section of the fluid-carrying gap.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: August 18, 2020
    Assignee: Ventana Medical Systems, Inc.
    Inventors: Michael Otter, Brian Howard Kram, Carl David Martin, Jessica Wifall, Kevin David Marshall, Christine Tse, Josh Harrison
  • Publication number: 20200149842
    Abstract: This disclosure extends to systems, apparatus, and methods for the rapid deployment of a sling or strap on a rifle, firearm, tool, or implement from a storage mode to a deployment mode in a reliable and repeatable manner, while minimizing snagging, binding or tangling during storage or transport. In one exemplary system in accordance with the teachings of the present disclosure, a capture device may include a single closed loop interface adjacent to an open interface. A first strap may be looped through the closed interface and secured therein. Another portion of the sling system, such as a loop of strap or webbing may be secured by tensioning in the open interface to tightly secure the system against the rifle or tool in a secured position. By slightly loosening the loop, the secured portion can exit the open interface rapidly as the sling is deployed.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 14, 2020
    Applicant: Dark Horse Solutions, LLC
    Inventor: Bradley David Marshall
  • Patent number: 10614222
    Abstract: Systems, devices, and methods of an automatic attack testing framework for the security testing of an operational service are disclosed. In an example, such systems, devices, and methods may include operations that: deploy command instructions and a payload for a bot process to a computing device located within a target infrastructure, with the command instructions being selected based on criteria to test a security feature in the target infrastructure with an automated attack action in the bot process, and with the bot process being executed on the computing device and being started with use of the command instructions and the payload; communicate with the computing device to control the automated attack action within the target infrastructure, such that the automated attack action is performed within the bot process; and obtain results of the automated attack action performed within the bot process from the computing device.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: April 7, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Benjamin J. Godard, Art Sadovsky, Travis W. Rhodes, David A. Marshall, Richard A. Lundeen
  • Patent number: 10520272
    Abstract: Openings in a muzzle brake provide recoil inhibition and impulse noise attenuation by redirecting the propellant gases to the external environment. A turning vane aggressively turns and redirects the propellant gases in a rearward direction to counter the recoil of the weapon system. An angled baffle provides a physical barrier to redirect propellant gases rearward to provide additional force to counteract the recoil force. Attenuation slits mitigate blast overpressure by producing a fluid barrier of high velocity propellant gases directed radially away from the muzzle brake. The fluid barrier from the attenuation slits interacts with the redirected propellant gas from the turning vane and the angled baffle and redirects the counter recoil gases away from the crew.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: December 31, 2019
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Robert Carson, David Marshall, Tyler Bellamy, Stephen Robertson
  • Patent number: 10510459
    Abstract: Insulated winding wire articles and associated formation methods are described. An insulated winding wire article may include a conductor and optional base insulation formed around the conductor. The conductor may be formed into a predefined shape having at least one bend, such as a U-shaped bend. A coating comprising parylene may be formed around the conductor and any base insulation.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: December 17, 2019
    Assignee: Essex Group, Inc.
    Inventors: Allan R. Knerr, David Marshall Cain
  • Patent number: 10510464
    Abstract: A continuously transposed conductor (CTC) cable may include a plurality of electrically insulated strands arranged in first and second stacks with the plurality of strands successively transposed between the first and second stacks. The plurality of strands may include at least one strand having a plurality of component strands that are arranged in third and fourth stacks with the plurality of component strands successively transposed between the third and fourth stacks. Each of the components strands may include a conductor and insulation formed at least partially around the conductor.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: December 17, 2019
    Assignee: Essex Group, Inc.
    Inventors: Bogdan Gronowski, David Marshall Cain, Matthew Leach, Christopher Richardson, Jason Dennis Stephens
  • Patent number: D928903
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: August 24, 2021
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Robert Carson, David Marshall, Tyler Bellamy, Scott Bentley