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).

  • Publication number: 20210008323
    Abstract: 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: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Inventors: Ian Malcolm SMITH, John Michael SNOW, Perry David LITHGOW, Dan KAO
  • Patent number: 10881820
    Abstract: A breathable gas supply apparatus has a flow generator configured to pressurize a flow of breathable gas and a humidifier base unit configured to be coupled to the flow generator. A water container is configured to be removably coupled to the humidifier base unit and includes an air inlet and an air inlet passage extending into an interior of the water container from the air inlet. The air inlet passage is configured to direct the pressurized flow of breathable gas in a direction that is substantially parallel to a base of the water container. A barrier wall is provided across an outlet end of the air inlet passage and extends downward from the air inlet passage toward the water container base. In addition, a curved wall opposes both the outlet end of the air inlet passage and the barrier wall and extends downward toward the water container base.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 5, 2021
    Assignee: ResMed Pty Ltd
    Inventors: 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
  • Patent number: 10821258
    Abstract: 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: Grant
    Filed: January 10, 2018
    Date of Patent: November 3, 2020
    Assignee: ResMed Pty Ltd
    Inventors: Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
  • Patent number: 10786691
    Abstract: The present invention relates to improvements to powered air purifying respirators (PAPR). PAPR are known generally for use in polluted environments. A typical PAPR comprises a powered impellor arranged to draw air from the atmosphere, a filter element and a mask to provide the filtered and pressurized air to the user. Embodiments of the present invention place a generator unit, comprising a filter and impellor for pressurizing the air, behind the head of the user, and include components for improving delivery of the air to the user and improving its quality.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: September 29, 2020
    Assignee: CLEANSPACE IP PTY LTD
    Inventors: Dan Kao, Xiaoyi (Eric) Fu, Alexander Virr, John Michael Snow, Damian Charles Johnson
  • Publication number: 20200282242
    Abstract: 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: Application
    Filed: September 13, 2018
    Publication date: September 10, 2020
    Applicant: CLEANSPACE IP PTY LTD
    Inventors: Alexander VIRR, Dan KAO, John Michael SNOW, Damian Charles JOHNSON, Chayut ORAPINPATIPAT, Millen James RATH-MAY
  • Patent number: 10279141
    Abstract: 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: Grant
    Filed: June 28, 2016
    Date of Patent: May 7, 2019
    Assignee: ResMed Limited
    Inventors: Alexander Virr, Andrew Roderick Bath, Nathan John Row, Dan Kao, Phoebe Katherine Hill, Nicholas Andrew Earl, Hargopal Verma, Junning Chen
  • Publication number: 20190117931
    Abstract: 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: Application
    Filed: December 18, 2018
    Publication date: April 25, 2019
    Inventors: Alexander VIRR, Andrew Roderick BATH, Nathan John ROW, Dan KAO, Phoebe Katherine HILL, Nicholas Andrew EARL, Hargopal VERMA, Junning CHEN
  • Patent number: 10201676
    Abstract: A CPAP device for delivering pressurized, humidified breathable gas for a patient includes a flow generator configured to pressurize a flow of breathable gas. The flow generator includes an air outlet and a removable water container configured to humidify the pressurized breathable gas received from the flow generator. The water container includes an air inlet and an air outlet. The CPAP device further includes a first elastomeric face seal configured to sealingly abut against a substantially flat portion of the water container surrounding the water container air inlet, the first elastomeric face seal being located at an intermediate position between the flow generator air outlet and the water container air inlet when the water container is placed into position to pneumatically communicate with the flow generator.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 12, 2019
    Assignee: ResMed Limited
    Inventors: Perry David Lithgow, Alexander Virr, Duncan Lovel Trevor-Wilson, Andrew Roderick Bath, Michael Thomas Janiak, Dan Kao, Jim Saada
  • Publication number: 20190038865
    Abstract: A CPAP device includes a humidifier tub including a heat conducting base plate. The CPAP device also includes a cradle to support the humidifier tub in an operative position. The cradle includes a heater plate in communication with the heat conducting base plate of the humidifier tub in use. The cradle further includes a retaining mechanism to retain the humidifier tub in the cradle. The retaining mechanism is structured to force the base plate into engagement with the heater plate.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 7, 2019
    Inventors: Ian Malcolm SMITH, John Michael SNOW, Perry David LITHGOW, Dan KAO
  • Patent number: 10195389
    Abstract: 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: Grant
    Filed: December 28, 2017
    Date of Patent: February 5, 2019
    Assignee: ResMed Limited
    Inventors: Alexander Virr, Andrew Roderick Bath, Nathan John Row, Dan Kao, Phoebe Katherine Hill, Nicholas Andrew Earl, Hargopal Verma, Junning Chen
  • Patent number: 10188880
    Abstract: A filter assembly for a breathing apparatus, such as a powered air purifying respirator. The filter assembly includes a frame for receiving and retaining a filter element, a cover connected to the frame and dimensioned to cover the aperture, a filter element, and an indicator for indicating when the filter element is retained in the filter frame and the cover is arranged across the aperture. A powered breathing apparatus including the filter assembly is also disclosed.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: January 29, 2019
    Assignee: Cleanspace IP Pty Ltd
    Inventors: Alexander Virr, Xiaoyi Fu, Dan Kao, John Michael Snow, Damian Charles Johnson
  • Patent number: 10124143
    Abstract: A CPAP device includes a flow generator comprising a motorized fan with an outlet. The motorized fan is configured to pressurize a supply of gas. The flow generator further comprises a flow generator outlet in communication with and offset from the motorized fan outlet and comprises a connector configured to receive the pressurized supply of gas from the flow generator, the connector being in communication with the flow generator outlet and positioned downstream of the motorized fan outlet. The connector comprises an attaching portion at a first end, the attaching portion configured to be coupled to the flow generator. The connector also comprises a flexible sealing portion at a second end opposite the first end, the flexible sealing portion comprising a bellows-type conforming face seal that is axially and/or laterally flexible.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: November 13, 2018
    Assignee: ResMed Limited
    Inventors: Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
  • Publication number: 20180140792
    Abstract: A CPAP device for delivering pressurized, humidified breathable gas for a patient includes a flow generator configured to pressurize a flow of breathable gas. The flow generator includes an air outlet and a removable water container configured to humidify the pressurized breathable gas received from the flow generator. The water container includes an air inlet and an air outlet. The CPAP device further includes a first elastomeric face seal configured to sealingly abut against a substantially flat portion of the water container surrounding the water container air inlet, the first elastomeric face seal being located at an intermediate position between the flow generator air outlet and the water container air inlet when the water container is placed into position to pneumatically communicate with the flow generator.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 24, 2018
    Inventors: Perry David LITHGOW, Alexander VIRR, Duncan Lovel TREVOR-WILSON, Andrew Roderick BATH, Michael Thomas JANIAK, Dan KAO, Jim SAADA
  • Publication number: 20180126109
    Abstract: 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: Application
    Filed: January 10, 2018
    Publication date: May 10, 2018
    Inventors: Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
  • Publication number: 20180117273
    Abstract: 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: Application
    Filed: December 28, 2017
    Publication date: May 3, 2018
    Inventors: Alexander VIRR, Andrew Roderick BATH, Nathan John ROW, Dan KAO, Phoebe Katherine HILL, Nicholas Andrew EARL, Hargopal VERMA, Junning CHEN
  • Patent number: 9895509
    Abstract: 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: Grant
    Filed: July 13, 2016
    Date of Patent: February 20, 2018
    Assignee: RESMED LIMITED
    Inventors: Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
  • Publication number: 20180001120
    Abstract: A filter assembly for a breathing apparatus, such as a powered air purifying respirator. The filter assembly includes a frame for receiving and retaining a filter element, a cover connected to the frame and dimensioned to cover the aperture, a filter element, and an indicator for indicating when the filter element is retained in the filter frame and the cover is arranged across the aperture. A powered breathing apparatus including the filter assembly is also disclosed.
    Type: Application
    Filed: January 14, 2016
    Publication date: January 4, 2018
    Inventors: Alexander VIRR, Xiaoyi FU, Dan KAO, John Michael SNOW, Damian Charles JOHNSON
  • Publication number: 20170361134
    Abstract: A breathing apparatus including a face mask adapted to substantially cover a face of a user and a neck component attached to the face mask and surrounding the user's neck. The face mask has a peripheral region which forms a pneumatic seal against the face and an air inlet arranged proximal to the peripheral region. The neck component houses a flow generator configured to receive unfiltered air from outside of the breathing apparatus, filter the unfiltered air, and convey the filtered air to the face mask through the air inlet.
    Type: Application
    Filed: January 14, 2016
    Publication date: December 21, 2017
    Inventors: Alexander VIRR, Xiaoyi FU, Dan KAO, John Michael SNOW, Damian Charles JOHNSON
  • Patent number: RE46543
    Abstract: Apparatus for treatment of obstructive sleep apnea includes a CPAP device and a detachable humidifier. The humidifier includes a tank that is removably insertable into a humidifier base. A sealed air flow path from the CPAP device and through the water tank is established when the water tank is placed in the humidifier base.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 12, 2017
    Assignee: ResMed Limited
    Inventors: Duncan Lovel Trevor-Wilson, Perry David Lithgow, Alexander Virr, Andrew Roderick Bath, Michael Thomas Janiak, Dan Kao, Jim Saada
  • Patent number: D872854
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: January 14, 2020
    Assignee: CLEANSPACE IP PTY LTD
    Inventors: Alexander Virr, Dan Kao, John Michael Snow, Damian Charles Johnson, Chayut Orapinpatipat, Millen James Rath-May