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: 20140332001
    Abstract: A humidifier has a base unit with an engagement face that is configured to interface with a flow generator. The humidifier also has a tank configured to be removably received by the base unit and hold a volume of liquid. The tank has a side wall with an air inlet. The humidifier further has an air flow passage configured to receive an air connector of the flow generator at the engagement face of the base unit. The air flow passage is axially offset from a tank inlet. In addition, a cross-section of the airflow passage inlet and a cross-section of the tank air inlet are substantially perpendicular to a horizontal plane.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventors: Andrew Roderick BATH, Geoffrey CRUMBLIN, Craig Edward HARRIS, 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
  • Publication number: 20140332002
    Abstract: A humidifier has a base unit with an engagement face that is configured to interface with a flow generator. The humidifier also has a tank configured to be removably received by the base unit and hold a volume of liquid. The tank has a side wall with an air inlet. The humidifier further has an air flow passage configured to receive an air connector of the flow generator at the engagement face of the base unit. The air flow passage is axially offset from a tank inlet. In addition, a cross-section of the airflow passage inlet and a cross-section of the tank air inlet are substantially perpendicular to a horizontal plane.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventors: Geoffrey CRUMBLIN, Craig Edward HARRIS, 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
  • Publication number: 20140332003
    Abstract: A humidifier has a base unit with an engagement face that is configured to interface with a flow generator. The humidifier also has a tank configured to be removably received by the base unit and hold a volume of liquid. The tank has a side wall with an air inlet. The humidifier further has an air flow passage configured to receive an air connector of the flow generator at the engagement face of the base unit. The air flow passage is axially offset from a tank inlet. In addition, a cross-section of the airflow passage inlet and a cross-section of the tank air inlet are substantially perpendicular to a horizontal plane. In addition, a flexible face seal is positioned at an end of the air flow passage. An end of the face seal is configured to abut a side wall of the tank that includes the tank inlet when the tank is received in the base unit.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventors: Geoffrey CRUMBLIN, Craig Edward HARRIS, 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
  • Publication number: 20140130802
    Abstract: A humidifier for humidifying a flow of breathable gas to be delivered to a patient includes a chamber configured to receive the flow of breathable gas; a tub configured to contain a supply of water, the tub being configured to be inserted into the chamber; a lid provided on the chamber and being movable between an open position and a closed position; and a seal provided on the lid, the seal being configured to seal the chamber such that the flow of breathable gas pressurizes the chamber. The humidifier may be connectable to a flow generator configured to generate the flow of breathable gas. A tube for delivering the humidified flow may be connected to the humidifier. The tube may be a heated or non-heated tube. A respiratory apparatus for delivering a flow of breathable gas to a patient may include the humidifier and the flow generator and/or the tube.
    Type: Application
    Filed: January 17, 2014
    Publication date: May 15, 2014
    Applicant: 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: 8631789
    Abstract: A humidifier (14) for humidifying a flow of breathable gas to be delivered to a patient includes a chamber (16) configured to receive the flow of breathable gas; a tub (20) configured to contain a supply of water, the tub being configured to be inserted into the chamber; a lid (18) provided on the chamber and being movable between an open position and a closed position; and a seal (19) provided on the lid, the seal being configured to seal the chamber such that the flow of breathable gas pressurizes the chamber. The humidifier may be connectable to a flow generator (12) configured to generate the flow of breathable gas. A tube for delivering the humidified flow may be connected to the humidifier. The tube may be a heated or non-heated tube. A respiratory apparatus for delivering a flow of breathable gas to a patient may include the humidifier and the flow generator and/or the tube.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: January 21, 2014
    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: 8544465
    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: August 15, 2006
    Date of Patent: October 1, 2013
    Assignee: Redmed Limited
    Inventors: Ian Malcolm Smith, John Michael Snow, Perry David Lithgow, Dan Kao
  • Publication number: 20120174922
    Abstract: A breathing apparatus, including a mask and a neck component. The mask is adapted to substantially surround at least the mouth or nostrils of a user. The neck component is attached to said mask, and adapted to substantially surround the back of the neck of said user. The neck component includes a flow generator to receive unfiltered air from a surrounding environment, filter said unfiltered air, and, provide filtered air to said mask. The breathing apparatus has a ‘low profile’ appearance and is adapted to sit comfortably about the neck of the user.
    Type: Application
    Filed: July 15, 2010
    Publication date: July 12, 2012
    Inventors: Alexander Virr, Dan Kao, Xiaoyi Fu, John Michael Snow, Junning Chen
  • Publication number: 20110283999
    Abstract: A CPAP device includes a humidifier including humidifier tub having a heat conducting base plate; and a cradle to support the humidifier tub in an operative position. The cradle may also support a flow generator in operative relation to the humidifier tub. 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 being structured to force the base plate into engagement with the heater plate. The humidifier and/or flow generator may include various features to manage inadvertent back-spill of water from the humidifier to the flow generator.
    Type: Application
    Filed: August 15, 2006
    Publication date: November 24, 2011
    Applicant: ResMed Limited
    Inventors: Ian Smith, John Snow, Perry Lithgow, Dan Kao
  • Publication number: 20110271956
    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 7, 2009
    Publication date: November 10, 2011
    Applicant: ResMed Limited
    Inventors: Ian Smith, John Snow, Perry Lithgow, Dan Kao
  • Patent number: 8028693
    Abstract: A method of sealably locating a humidifier water tub in a humidifier base comprising positioning a rear surface of the humidifier water tub to abut a humidifier seal to form an air path from a flow generator outlet into an interior of the water tub, and pressing a humidifier lid of the humidifier to engage a surface of a tub lid of the humidifier water tub to form a sealed air path between an interior of the humidifier water tub and an air delivery conduit connector positioned on the humidifier lid.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: October 4, 2011
    Assignee: ResMed Limited
    Inventors: Duncan Lovel Trevor-Wilson, Perry David Lithgow, Alexander Virr, Dan Kao, Michael Thomas Janiak, Andrew Roderick Bath
  • Patent number: 8020551
    Abstract: A respiratory treatment device comprising a flow generator and a humidifier adapted to receive a supply of air at positive pressure from the flow generator and deliver it to an air delivery tube, wherein the humidifier includes a base, a humidifier lid, and a water tank, and the water tank includes a water tank lid, the water tank is removably receivable in the base to define a first air flow path from the flow generator to an interior of the water tank, and the humidifier lid is connectable to the air delivery tube, and is adapted to form a seal with the water tank lid to define a second air flow path from the interior of the water tank to the air delivery tube.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: September 20, 2011
    Assignee: ResMed Limited
    Inventors: Alexander Virr, Duncan Lovel Trevor-Wilson, Perry David Lithgow, Dan Kao, Michael Thomas Janiak, Andrew Roderick Bath
  • Patent number: 8006691
    Abstract: A flow generator and humidifier construction is described, including a flow generator construction adapted to reduce noise output compared to known flow generators of comparable size. The flow generator includes a chassis forming first and second muffler volumes and a venturi-shaped connection portion, and a metal/polymer composite material blower enclosure which suppresses noise from the blower. The flow generator may be programmed to include a reminder system including a menu from which the user may request a reminder to take specific action, e.g., replace a component, call a physician, and/or enter patient data card, etc.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: August 30, 2011
    Assignee: ResMed Limited
    Inventors: Barton John Kenyon, Arthur Kin-Wai Yee, Rohan Neil Primrose, Jim Saada, John Michael Snow, Marek Tomasz Sapula, Geoffrey Crumblin, Duncan Lovel Trevor-Wilson, Perry David Lithgow, Alexander Virr, Donald Angus Richmond, Michael Thomas Janiak, Dan Kao, Andrew Roderick Bath
  • Publication number: 20110155132
    Abstract: A humidifier (14) for humidifying a flow of breathable gas to be delivered to a patient includes a chamber (16) configured to receive the flow of breathable gas; a tub (20) configured to contain a supply of water, the tub being configured to be inserted into the chamber; a lid (18) provided on the chamber and being movable between an open position and a closed position; and a seal (19) provided on the lid, the seal being configured to seal the chamber such that the flow of breathable gas pressurizes the chamber. The humidifier may be connectable to a flow generator (12) configured to generate the flow of breathable gas. A tube for delivering the humidified flow may be connected to the humidifier. The tube may be a heated or non-heated tube. A respiratory apparatus for delivering a flow of breathable gas to a patient may include the humidifier and the flow generator and/or the tube.
    Type: Application
    Filed: September 17, 2009
    Publication date: June 30, 2011
    Applicant: 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: D643114
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: August 9, 2011
    Assignee: ResMed Limited
    Inventors: Alexander Virr, Mark Bertinetti, Dan Kao
  • Patent number: D644319
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: August 30, 2011
    Assignee: Resmed Limited
    Inventors: Alexander Virr, John Michael Snow, Mark Bertinetti, Dan Kao, Hargopal Verma, Richard Llewelyn Jones, Ernie Wei-Chih Tsai
  • Patent number: D644320
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: August 30, 2011
    Assignee: Resmed Limited
    Inventors: Alexander Virr, John Michael Snow, Mark Bertinetti, Dan Kao, Hargopal Verma, Richard Llewelyn Jones, Ernie Wei-Chih Tsai
  • Patent number: D659235
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: May 8, 2012
    Assignee: ResMed Limited
    Inventors: Mark Bertinetti, Perry David Lithgow, Rohan Neil Primrose, Phoebe Katherine Hill, Richard Llewelyn Jones, Dimitri Marco Maurer, Alexander Virr, Hargopal Verma, Dan Kao, Henri Spaile, Nicholas Andrew Earl, Mark Armstrong, Justin Peter Wagemakers, Kenneth Lam, Bazil Yuen-fung Tung, Saad Nasr, Ian Malcolm Smith
  • Patent number: D663412
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: July 10, 2012
    Assignee: ResMed Limited
    Inventors: Alexander Virr, Dan Kao
  • Patent number: D679374
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: April 2, 2013
    Assignee: ResMed Limited
    Inventors: Alexander Virr, Dan Kao
  • Patent number: D710989
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: August 12, 2014
    Assignee: ResMed Limited
    Inventors: Mark Bertinetti, Perry David Lithgow, Rohan Neil Primrose, Alexander Virr, Hargopal Verma, Dan Kao, Henri Spaile, Nicholas Andrew Earl, Mark Armstrong