Patents by Inventor Stephen Anthony Lea
Stephen Anthony Lea 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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Patent number: 10434271Abstract: A blower assembly is configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to a patient interface in communication with an entrance to a patient's airways including at least an entrance of the patient's nares, while the patient is sleeping, to ameliorate sleep disordered breathing. The blower assembly includes a motor having a shaft that extends from opposite sides of the motor. The blower assembly also includes an impeller and a circuit board. The impeller is attached to the shaft on a first side of the motor and is structured to rotate in close proximity to a volute wall. The circuit board is configured to control power supplied to the motor and is configured to disable the motor when the impeller is closer than a predetermined distance from the volute wall.Type: GrantFiled: July 29, 2016Date of Patent: October 8, 2019Assignee: ResMed Pty LtdInventors: Geoffrey Daniel Daly, Alexander Virr, Stephen Anthony Lea, Nicholas Jerome Reed
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Patent number: 10300231Abstract: A blower assembly is configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to a patient interface in communication with an entrance to a patient's airways including at least an entrance of the patient's nares, while the patient is sleeping, to ameliorate sleep disordered breathing. The blower assembly includes a motor having a shaft that extends from opposite sides of the motor. The blower assembly also includes an impeller and a circuit board. The impeller is attached to the shaft on a first side of the motor and is structured to rotate in close proximity to a volute wall. The circuit board is configured to control power supplied to the motor and is configured to disable the motor when the impeller is closer than a predetermined distance from the volute wall.Type: GrantFiled: August 3, 2016Date of Patent: May 28, 2019Assignee: ResMed LimitedInventors: Geoffrey Daniel Daly, Alexander Virr, Stephen Anthony Lea, Nicholas Jerome Reed
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Publication number: 20160339193Abstract: A blower assembly is configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to a patient interface in communication with an entrance to a patient's airways including at least an entrance of the patient's nares, while the patient is sleeping, to ameliorate sleep disordered breathing. The blower assembly includes a motor having a shaft that extends from opposite sides of the motor. The blower assembly also includes an impeller and a circuit board. The impeller is attached to the shaft on a first side of the motor and is structured to rotate in close proximity to a volute wall. The circuit board is configured to control power supplied to the motor and is configured to disable the motor when the impeller is closer than a predetermined distance from the volute wall.Type: ApplicationFiled: August 3, 2016Publication date: November 24, 2016Inventors: Geoffrey Daniel DALY, Alexander VIRR, Stephen Anthony LEA, Nicholas Jerome REED
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Publication number: 20160333885Abstract: A blower assembly is configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to a patient interface in communication with an entrance to a patient's airways including at least an entrance of the patient's nares, while the patient is sleeping, to ameliorate sleep disordered breathing. The blower assembly includes a motor having a shaft that extends from opposite sides of the motor. The blower assembly also includes an impeller and a circuit board. The impeller is attached to the shaft on a first side of the motor and is structured to rotate in close proximity to a volute wall. The circuit board is configured to control power supplied to the motor and is configured to disable the motor when the impeller is closer than a predetermined distance from the volute wall.Type: ApplicationFiled: July 29, 2016Publication date: November 17, 2016Inventors: Geoffrey Daniel DALY, Alexander VIRR, Stephen Anthony LEA, Nicholas Jerome REED
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Patent number: 9427538Abstract: A multiple stage variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the multiple stage blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.Type: GrantFiled: July 30, 2013Date of Patent: August 30, 2016Assignee: ResMed LimitedInventors: Geoffrey Daniel Daly, Alexander Virr, Stephen Anthony Lea, Nicholas Jerome Reed
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Patent number: 9358359Abstract: 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: GrantFiled: July 2, 2015Date of Patent: June 7, 2016Assignee: ResMed LimitedInventors: Perry David Lithgow, Alexander Virr, Duncan Lovel Trevor-Wilson, Andrew Roderick Bath, Michael Thomas Janiak, Dan Kao, Stephen Anthony Lea
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Publication number: 20150306336Abstract: 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: ApplicationFiled: July 2, 2015Publication date: October 29, 2015Inventors: Perry David LITHGOW, Alexander VIRR, Duncan Lovel TREVOR-WILSON, Andrew Roderick BATH, Michael Thomas JANIAK, Dan KAO, Stephen Anthony LEA
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Patent number: 9072860Abstract: 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: GrantFiled: September 30, 2014Date of Patent: July 7, 2015Assignee: ResMed LimitedInventors: Perry David Lithgow, Alexander Virr, Duncan Lovel Trevor-Wilson, Andrew Roderick Bath, Michael Thomas Janiak, Dan Kao, Stephen Anthony Lea
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Publication number: 20140041663Abstract: A multiple stage variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the multiple stage blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.Type: ApplicationFiled: July 30, 2013Publication date: February 13, 2014Applicant: ResMed LimitedInventors: Geoffrey Daniel Daly, Alexander Virr, Stephen Anthony Lea, Dion Charles Chewe Martin, Nicholas Jerome Reed, Larry Puckeridge, Timothy Tsun-Fai Fu
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Patent number: 8517012Abstract: A multiple stage variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the multiple stage blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.Type: GrantFiled: June 10, 2004Date of Patent: August 27, 2013Assignee: ResMed LimitedInventors: Geoffrey Daniel Daly, Alexander Virr, Stephen Anthony Lea, Dion Charles Chewe Martin, Nicholas Jerome Reed, Larry Puckeridge, Timothy Tsun-Fai Fu
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Patent number: 8122884Abstract: A double-ended variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the double-ended blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.Type: GrantFiled: May 24, 2005Date of Patent: February 28, 2012Assignee: ResMed LimitedInventors: Geoffrey Daniel Daly, Alexander Virr, Stephen Anthony Lea, Dion Charles Chewe Martin, Nicholas Jerome Reed, Larry Puckeridge, Timothy Tsun-Fai Fu