Patents by Inventor Stuart Hatfield

Stuart Hatfield 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: 11940061
    Abstract: A valve for controlling a flow of a fluid comprises: a sealing plate comprising a plurality of ports for passage of the fluid through the sealing plate in a direction substantially perpendicular to the plane of the sealing plate; and a plurality of valve members, each valve member comprising at least one anchor portion arranged in fixed relationship with the sealing plate and a closure portion which is contiguous with the anchor portion and in movable relationship with the sealing plate under a differential pressure of the fluid across the valve, the closure portion being movable away from the sealing plate under a first differential pressure direction to open at least one of the ports and toward the sealing plate under a second and opposite differential pressure direction to close said at least one of the ports.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: March 26, 2024
    Assignee: TTP VENTUS LTD
    Inventor: Stuart Hatfield
  • Patent number: 11841094
    Abstract: A valve includes a first plate, a second plate, a spacer disposed between the first plate and the second plate, and a flap movably disposed between the first plate and the second plate. The first plate includes a plurality of first apertures extending through said first plate and the second plate includes a plurality of second apertures extending through said second plate. The second apertures are substantially offset from the first apertures. The spacer forms a cavity between the first plate and the second plate and is in fluid communication with the first apertures and the second apertures. The flap has apertures substantially offset from the first apertures and substantially aligned with the second apertures, and the flap is operable to be motivated between said first and second plates in response to a change in direction of the differential pressure of the fluid across the valve.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: December 12, 2023
    Assignee: TTP VENTUS LTD.
    Inventors: Stuart Hatfield, James Samuel Bumby
  • Patent number: 11828374
    Abstract: A valve includes a first plate, a second plate, a spacer disposed between the first plate and the second plate, and a flap movably disposed between the first plate and the second plate. The first plate includes a plurality of first holes extending through said first plate and the second plate includes a plurality of second holes extending through said second plate. The second holes are substantially offset from the first holes. The spacer forms a cavity between the first plate and the second plate and is in fluid communication with the first holes and the second holes. The flap has holes substantially offset from the first holes and substantially aligned with the second holes, and the flap is operable to be motivated between said first and second plates in response to a change in direction of the differential pressure of the fluid across the valve.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: November 28, 2023
    Assignee: TTP VENTUS LTD.
    Inventors: Stuart Hatfield, James Samuel Bumby
  • Publication number: 20230109570
    Abstract: A valve for controlling a flow of a fluid comprises: a sealing plate comprising a plurality of ports for passage of the fluid through the sealing plate in a direction substantially perpendicular to the plane of the sealing plate; and a plurality of valve members, each valve member comprising at least one anchor portion arranged in fixed relationship with the sealing plate and a closure portion which is contiguous with the anchor portion and in movable relationship with the sealing plate under a differential pressure of the fluid across the valve, the closure portion being movable away from the sealing plate under a first differential pressure direction to open at least one of the ports and toward the sealing plate under a second and opposite differential pressure direction to close said at least one of the ports.
    Type: Application
    Filed: January 18, 2021
    Publication date: April 6, 2023
    Applicant: TTP Ventus Ltd
    Inventor: Stuart Hatfield
  • Publication number: 20220057019
    Abstract: A valve includes a first plate, a second plate, a spacer disposed between the first plate and the second plate, and a flap movably disposed between the first plate and the second plate. The first plate includes a plurality of first apertures extending through said first plate and the second plate includes a plurality of second apertures extending through said second plate. The second apertures are substantially offset from the first apertures. The spacer forms a cavity between the first plate and the second plate and is in fluid communication with the first apertures and the second apertures. The flap has apertures substantially offset from the first apertures and substantially aligned with the second apertures, and the flap is operable to be motivated between said first and second plates in response to a change in direction of the differential pressure of the fluid across the valve.
    Type: Application
    Filed: December 6, 2019
    Publication date: February 24, 2022
    Inventors: Stuart HATFIELD, James Samuel BUMBY
  • Publication number: 20220018458
    Abstract: A valve includes a first plate, a second plate, a spacer disposed between the first plate and the second plate, and a flap movably disposed between the first plate and the second plate. The first plate includes a plurality of first holes extending through said first plate and the second plate includes a plurality of second holes extending through said second plate. The second holes are substantially offset from the first holes. The spacer forms a cavity between the first plate and the second plate and is in fluid communication with the first holes and the second holes. The flap has holes substantially offset from the first holes and substantially aligned with the second holes, and the flap is operable to be motivated between said first and second plates in response to a change in direction of the differential pressure of the fluid across the valve.
    Type: Application
    Filed: December 6, 2019
    Publication date: January 20, 2022
    Inventors: Stuart HATFIELD, James Samuel BUMBY
  • Patent number: 10088076
    Abstract: A method and apparatus for the singulation of valve plates and/or assembled valves from a lead-frame are described. The method and apparatus utilizes an electric current to fuse tabs which join the valve plate and/or the assembled valve to the lead-frame. The valve comprises a first and second valve plate with offsetting apertures and a flap disposed and movable between the first and second plates.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: October 2, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Jonathan Paul Jaeb, Stuart Hatfield
  • Patent number: 9827777
    Abstract: A liquid management system for supplying or receiving liquid at a controlled pressure, comprising: a closed reservoir having an inlet for receiving liquid from a first remote location and an outlet for supplying liquid to a second remote location; and a pumped outlet disposed in the reservoir and arranged to remove liquid and gas contained within the reservoir, the pumped outlet being disposed such that the level of liquid in the reservoir can be maintained at a constant height.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 28, 2017
    Assignee: The Technology Partners, PIC.
    Inventors: Stuart Hatfield, Peter James Brown, Andrew Victor Polijanczuk
  • Publication number: 20160375694
    Abstract: A liquid management system for supplying or receiving liquid at a controlled pressure, comprising: a closed reservoir having an inlet for receiving liquid from a first remote location and an outlet for supplying liquid to a second remote location; and a pumped outlet disposed in the reservoir and arranged to remove liquid and gas contained within the reservoir, the pumped outlet being disposed such that the level of liquid in the reservoir can be maintained at a constant height.
    Type: Application
    Filed: September 9, 2016
    Publication date: December 29, 2016
    Inventors: Stuart Hatfield, Peter James Brown, Andrew Victor Polijanczuk
  • Publication number: 20160319957
    Abstract: A method and apparatus for the singulation of valve plates and/or assembled valves from a lead-frame are described. The method and apparatus utilizes an electric current to fuse tabs which join the valve plate and/or the assembled valve to the lead-frame. The valve comprises a first and second valve plate with offsetting apertures and a flap disposed and movable between the first and second plates.
    Type: Application
    Filed: May 25, 2016
    Publication date: November 3, 2016
    Inventors: Jonathan Paul JAEB, Stuart HATFIELD
  • Patent number: 9440444
    Abstract: A liquid management system for supplying or receiving liquid at a controlled pressure, comprising: a closed reservoir having an inlet for receiving liquid from a first remote location and an outlet for supplying liquid to a second remote location; and a pumped outlet disposed in the reservoir and arranged to remove liquid and gas contained within the reservoir, the pumped outlet being disposed such that the level of liquid in the reservoir can be maintained at a constant height.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: September 13, 2016
    Assignee: The Technology Partnership PLC
    Inventors: Stuart Hatfield, Peter James Brown, Andrew Victor Polijanczuk
  • Patent number: 9377130
    Abstract: A method and apparatus for the singulation of valve plates and/or assembled valves from a lead-frame are described. The method and apparatus utilizes an electric current to fuse tabs which join the valve plate and/or the assembled valve to the lead-frame. The valve comprises a first and second valve plate with offsetting apertures and a flap disposed and movable between the first and second plates.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: June 28, 2016
    Assignee: KCI Licensing, Inc.
    Inventors: Jonathan Paul Jaeb, Stuart Hatfield
  • Publication number: 20150202877
    Abstract: A liquid management system for supplying or receiving liquid at a controlled pressure, comprising: a closed reservoir having an inlet for receiving liquid from a first remote location and an outlet for supplying liquid to a second remote location; and a pumped outlet disposed in the reservoir and arranged to remove liquid and gas contained within the reservoir, the pumped outlet being disposed such that the level of liquid in the reservoir can be maintained at a constant height.
    Type: Application
    Filed: June 28, 2013
    Publication date: July 23, 2015
    Inventors: Stuart Hatfield, Peter James Brown, Andrew Victor Polijanczuk
  • Publication number: 20140157598
    Abstract: A method and apparatus for the singulation of valve plates and/or assembled valves from a lead-frame are described. The method and apparatus utilizes an electric current to fuse tabs which join the valve plate and/or the assembled valve to the lead-frame. The valve comprises a first and second valve plate with offsetting apertures and a flap disposed and movable between the first and second plates.
    Type: Application
    Filed: January 8, 2014
    Publication date: June 12, 2014
    Applicant: KCI Licensing, Inc.
    Inventors: Jonathan Paul Jaeb, Stuart Hatfield
  • Patent number: 8646479
    Abstract: A method and apparatus for the singulation of valve plates and/or assembled valves from a lead-frame are described. The method and apparatus utilizes an electric current to fuse tabs which join the valve plate and/or the assembled valve to the lead-frame. The valve comprises a first and second valve plate with offsetting apertures and a flap disposed and movable between the first and second plates.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: February 11, 2014
    Assignee: KCI Licensing, Inc.
    Inventors: Jonathan Jaeb, Stuart Hatfield
  • Publication number: 20110186765
    Abstract: A method and apparatus for the singulation of valve plates and/or assembled valves from a lead-frame are described. The method and apparatus utilizes an electric current to fuse tabs which join the valve plate and/or the assembled valve to the lead-frame. The valve comprises a first and second valve plate with offsetting apertures and a flap disposed and movable between the first and second plates.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 4, 2011
    Inventors: Jonathan Jaeb, Stuart Hatfield