Patents by Inventor Dan Kao
Dan Kao 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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Publication number: 20230338693Abstract: A CPAP device is configured to deliver a pressurized flow of respiratory gas to a patient's airways and includes a flow generator with a blower configured to pressurize the flow of respiratory gas. A flexible face seal is positioned at an outlet end of a blower discharge path. The flexible face seal includes an aperture and a lip curling inwardly from a perimeter of the flexible face seal. A tub configured to hold a body of water and humidify the pressurized flow of respiratory gas includes a heat conducting base plate and a side wall. A base supports both the flow generator and the tub and includes a floor with a heater plate and a spring biased catch configured to secure the tub to the base. The spring biased catch is configured so that applying a downward force on the tub so that the tub presses against the floor of the base secures the tub to the base and allows the tub to be released from the base.Type: ApplicationFiled: June 29, 2023Publication date: October 26, 2023Inventors: Ian Malcolm SMITH, John Michael SNOW, Perry David LITHGOW, Dan KAO
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Patent number: 11724059Abstract: A positive airway pressure device includes a blower and a base. A blower outlet passage is connected to the blower and has a central tubular portion and a flexible sealing portion surrounding an outer circumferential surface of the central tubular portion. The base receives a tub with a heat conducting base plate, an internal air passage configured to receive the pressurized flow of respiratory gas from the blower outlet passage, and a pair of tub flanges extending laterally from respective side walls of the tub. Each tub flange has a horizontal portion and a tapered portion. The base further includes a floor with a heater plate a pair of base flanges. Each base flange extends laterally inward from a respective one of the side walls and engages a respective tub flange as the tub is inserted into the base with the tapered portions of the tub flanges being received first.Type: GrantFiled: August 1, 2022Date of Patent: August 15, 2023Assignee: ResMed Pty LtdInventors: Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
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Publication number: 20230218852Abstract: A tub is configured to contain a supply of water and is configured to be inserted into a chamber of a humidifier. The tub includes a tub base configured to contain the supply of water. The tub also includes a tub lid and a flow plate provided between the tub base and the tub lid. The flow plate includes a water level indicator configured to indicate a level of the supply of water in the tub base. In addition, the water level indicator includes a generally rectangular portion and a generally triangular portion.Type: ApplicationFiled: March 21, 2023Publication date: July 13, 2023Inventors: Alexander VIRR, Andrew Roderick BATH, Nathan John ROW, Dan KAO, Phoebe Katherine HILL, Nicholas Andrew EARL, Hargopal VERMA, Junning CHEN
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Patent number: 11642489Abstract: A tub is configured to contain a supply of water and is configured to be inserted into a chamber of a humidifier. The tub includes a tub base configured to contain the supply of water. The tub also includes a tub lid and a flow plate provided between the tub base and the tub lid. The flow plate includes a water level indicator configured to indicate a level of the supply of water in the tub base. In addition, the water level indicator includes a generally rectangular portion and a generally triangular portion.Type: GrantFiled: October 13, 2022Date of Patent: May 9, 2023Assignee: ResMed Pty LtdInventors: Alexander Virr, Andrew Roderick Bath, Nathan John Row, Dan Kao, Phoebe Katherine Hill, Nicholas Andrew Earl, Hargopal Verma, Junning Chen
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Patent number: 11642553Abstract: A respirator system includes a respirator with an air filter, a flow generator with a sensorless DC motor, a mask, a processor, a sensor, an electric power source, and a wireless transceiver. The respirator filters air, increase the pressure of the air, delivers the air to the mask at a pressure above ambient, gathers data with the sensor about operation of the respirator, and transmits the data. An intermediate electronic device is separate and remote from the respirator, and is configured to receive the transmitted data process the data, and re-transmit the data. A computer receives the data, processes the data and generates at least one report regarding the respirator or a user of the respirator.Type: GrantFiled: September 13, 2018Date of Patent: May 9, 2023Assignee: CLEANSPACE IP PTY LTD.Inventors: Alexander Virr, Dan Kao, John Michael Snow, Damian Charles Johnson, Chayut Orapinpatipat, Millen James Rath-May
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Publication number: 20230038396Abstract: A tub is configured to contain a supply of water and is configured to be inserted into a chamber of a humidifier. The tub includes a tub base configured to contain the supply of water. The tub also includes a tub lid and a flow plate provided between the tub base and the tub lid. The flow plate includes a water level indicator configured to indicate a level of the supply of water in the tub base. In addition, the water level indicator includes a generally rectangular portion and a generally triangular portion.Type: ApplicationFiled: October 13, 2022Publication date: February 9, 2023Inventors: Alexander VIRR, Andrew Roderick BATH, Nathan John ROW, Dan KAO, Phoebe Katherine HILL, Nicholas Andrew EARL, Hargopal VERMA, Junning CHEN
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Publication number: 20220370754Abstract: A positive airway pressure device includes a blower and a base. A blower outlet passage is connected to the blower and has a central tubular portion and a flexible sealing portion surrounding an outer circumferential surface of the central tubular portion. The base receives a tub with a heat conducting base plate, an internal air passage configured to receive the pressurized flow of respiratory gas from the blower outlet passage, and a pair of tub flanges extending laterally from respective side walls of the tub. Each tub flange has a horizontal portion and a tapered portion. The base further includes a floor with a heater plate a pair of base flanges. Each base flange extends laterally inward from a respective one of the side walls and engages a respective tub flange as the tub is inserted into the base with the tapered portions of the tub flanges being received first.Type: ApplicationFiled: August 1, 2022Publication date: November 24, 2022Inventors: Ian Malcolm SMITH, John Michael SNOW, Perry David LITHGOW, Dan KAO
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Patent number: 11497882Abstract: A tub is configured to contain a supply of water and is configured to be inserted into a chamber of a humidifier. The tub includes a tub base configured to contain the supply of water. The tub also includes a tub lid and a flow plate provided between the tub base and the tub lid. The flow plate includes a water level indicator configured to indicate a level of the supply of water in the tub base. In addition, the water level indicator includes a generally rectangular portion and a generally triangular portion.Type: GrantFiled: March 29, 2022Date of Patent: November 15, 2022Assignee: ResMed Pty LtdInventors: Alexander Virr, Andrew Roderick Bath, Nathan John Row, Dan Kao, Phoebe Katherine Hill, Nicholas Andrew Earl, Hargopal Verma, Junning Chen
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Patent number: 11420006Abstract: A CPAP device includes a flow generator with a blower configured to pressurize the flow of respiratory gas. A flexible face seal is positioned at an outlet end of a blower discharge path. The flexible face seal includes an aperture and a lip curling inwardly from a perimeter of the flexible face seal. A tub configured to hold a body of water and humidify the pressurized flow of respiratory gas includes a heat conducting base plate and a side wall. The side wall has a substantially flat portion that surrounds an air inlet opening. A base supports both the flow generator and the tub and includes a floor with a heater plate. A laterally positioned guide prevents the tub from being removed from the base in a vertical direction and includes a pair of C-shaped channel portions with open sides that face each other.Type: GrantFiled: September 30, 2021Date of Patent: August 23, 2022Assignee: ResMed Pty LtdInventors: Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
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Publication number: 20220218938Abstract: A tub is configured to contain a supply of water and is configured to be inserted into a chamber of a humidifier. The tub includes a tub base configured to contain the supply of water. The tub also includes a tub lid and a flow plate provided between the tub base and the tub lid. The flow plate includes a water level indicator configured to indicate a level of the supply of water in the tub base. In addition, the water level indicator includes a generally rectangular portion and a generally triangular portion.Type: ApplicationFiled: March 29, 2022Publication date: July 14, 2022Inventors: Alexander VIRR, Andrew Roderick BATH, Nathan John ROW, Dan KAO, Phoebe Katherine HILL, Nicholas Andrew EARL, Hargopal VERMA, Junning CHEN
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Patent number: 11318271Abstract: A tub is configured to contain a supply of water and is configured to be inserted into a chamber of a humidifier. The tub includes a tub base configured to contain the supply of water. The tub also includes a tub lid and a flow plate provided between the tub base and the tub lid. The flow plate includes a water level indicator configured to indicate a level of the supply of water in the tub base. In addition, the water level indicator includes a generally rectangular portion and a generally triangular portion.Type: GrantFiled: May 17, 2021Date of Patent: May 3, 2022Assignee: ResMed Pty LtdInventors: Alexander Virr, Andrew Roderick Bath, Nathan John Row, Dan Kao, Phoebe Katherine Hill, Nicholas Andrew Earl, Hargopal Verma, Junning Chen
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Patent number: 11235115Abstract: A humidifier assembly is configured to humidify a pressurized flow of breathable gas from a flow generator of a CPAP unit and includes a base configured to be attached to the flow generator, the base including a recess portion. A water receptacle is configured to be received within the recess portion of the base and includes a floor and a flange around an opening at the top of the water receptacle. A lid is hingedly attached to the base and is configured to pivot between an open position and a closed position. This lid includes a top wall, an outer depending wall, an inner depending wall in the form of a double wall, and an outlet pipe. A lid seal is attached to an underside of the top wall of the lid by way of a tongue and groove structure. A catch is located on the base and configured to lock the lid in the closed position.Type: GrantFiled: May 12, 2021Date of Patent: February 1, 2022Assignee: ResMed Pty LtdInventors: Geoffrey Crumblin, Michael Thomas Janiak, Dan Kao, Barton John Kenyon, Perry David Lithgow, Rohan Neil Primrose, Jim Saada, John Michael Snow, Duncan Lovel Trevor-Wilson, Alexander Virr, Arthur Kin-Wai Yee
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Publication number: 20220016382Abstract: A CPAP device is configured to deliver a pressurized flow of respiratory gas to a patient's airways and includes a flow generator with a blower configured to pressurize the flow of respiratory gas. A flexible face seal is positioned at an outlet end of a blower discharge path. The flexible face seal includes an aperture and a lip curling inwardly from a perimeter of the flexible face seal. A tub configured to hold a body of water and humidify the pressurized flow of respiratory gas includes a heat conducting base plate and a side wall. The side wall has a substantially flat portion that surrounds an air inlet opening. A base supports both the flow generator and the tub and includes a floor with a heater plate. A laterally positioned guide prevents the tub from being removed from the base in a vertical direction and includes a pair of C-shaped channel portions with open sides that face each other.Type: ApplicationFiled: September 30, 2021Publication date: January 20, 2022Inventors: Ian Malcolm SMITH, John Michael SNOW, Perry David LITHGOW, Dan KAO
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Patent number: 11135394Abstract: A flow generator for a CPAP system configured to deliver a pressurized flow of respiratory gas to a patient's airways includes a housing and a motorized fan positioned within the housing. The motorized fan is configured to pressurize the flow of respiratory gas. In addition, an outlet port is provided in the housing. The outlet port is configured to connect to a humidifier or an air delivery tube and is in communication with an outlet of the motorized fan. The flow generator further includes a water collection receptacle in communication with the outlet port and the motorized fan outlet. The water collection receptacle is configured to collect water entering the flow generator through the outlet port before the water reaches the motorized fan outlet.Type: GrantFiled: October 10, 2018Date of Patent: October 5, 2021Assignee: ResMed Pty LtdInventors: Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
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Publication number: 20210268222Abstract: A tub is configured to contain a supply of water and is configured to be inserted into a chamber of a humidifier. The tub includes a tub base configured to contain the supply of water. The tub also includes a tub lid and a flow plate provided between the tub base and the tub lid. The flow plate includes a water level indicator configured to indicate a level of the supply of water in the tub base. In addition, the water level indicator includes a generally rectangular portion and a generally triangular portion.Type: ApplicationFiled: May 17, 2021Publication date: September 2, 2021Inventors: Alexander VIRR, Andrew Roderick BATH, Nathan John ROW, Dan KAO, Phoebe Katherine HILL, Nicholas Andrew EARL, Hargopal VERMA, Junning CHEN
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Publication number: 20210260316Abstract: A humidifier assembly is configured to humidify a pressurized flow of breathable gas from a flow generator of a CPAP unit and includes a base configured to be attached to the flow generator, the base including a recess portion. A water receptacle is configured to be received within the recess portion of the base and includes a floor and a flange around an opening at the top of the water receptacle. A lid is hingedly attached to the base and is configured to pivot between an open position and a closed position. This lid includes a top wall, an outer depending wall, an inner depending wall in the form of a double wall, and an outlet pipe. A lid seal is attached to an underside of the top wall of the lid by way of a tongue and groove structure. A catch is located on the base and configured to lock the lid in the closed position.Type: ApplicationFiled: May 12, 2021Publication date: August 26, 2021Inventors: Geoffrey CRUMBLIN, Michael Thomas JANIAK, Dan KAO, Barton John KENYON, Perry David LITHGOW, Rohan Neil PRIMROSE, Jim SAADA, John Michael SNOW, Duncan Lovel TREVOR-WILSON, Alexander VIRR, Arthur Kin-Wai YEE
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Patent number: 11040166Abstract: A tub is configured to contain a supply of water and is configured to be inserted into a chamber of a humidifier. The tub includes a tub base configured to contain the supply of water. The tub also includes a tub lid and a flow plate provided between the tub base and the tub lid. The flow plate includes a water level indicator configured to indicate a level of the supply of water in the tub base. In addition, the water level indicator includes a generally rectangular portion and a generally triangular portion.Type: GrantFiled: December 18, 2018Date of Patent: June 22, 2021Assignee: ResMed Pty LtdInventors: Alexander Virr, Andrew Roderick Bath, Nathan John Row, Dan Kao, Phoebe Katherine Hill, Nicholas Andrew Earl, Hargopal Verma, Junning Chen
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Publication number: 20210008323Abstract: A CPAP device includes a flow generator including an outlet, a humidifier including an inlet, and an adaptor connector between the outlet of the flow generator and the inlet of the humidifier. The connector includes a flexible and conformable sealing portion that is movable to accommodate misalignment.Type: ApplicationFiled: September 29, 2020Publication date: January 14, 2021Inventors: Ian Malcolm SMITH, John Michael SNOW, Perry David LITHGOW, Dan KAO
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Patent number: D968712Type: GrantFiled: November 9, 2020Date of Patent: November 1, 2022Assignee: CLEANSPACE IP PTY LTDInventors: Jonah Beard, John Michael Snow, Oliver Henry William Williams, Dan Kao, Alexander Virr, Damian Charles Johnson
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Patent number: D986409Type: GrantFiled: November 30, 2018Date of Patent: May 16, 2023Assignee: CLEANSPACE IP PTY LTDInventors: Alexander Virr, Xiaoyi Fu, John Michael Snow, Dan Kao, Damian Charles Johnson