Patents by Inventor Peter John Leonard

Peter John Leonard 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: 7263994
    Abstract: A flow probe for use in a humidification system is positioned in a humidified gases flow such as that which is provided to a patient in a hospital environment. The flow probe is designed to provide both temperature and flow rate sensing of the gases flow by incorporating two sensors into the gases flow. The flow probes are shaved and aligned within the gases flow to enable accurate gas flow readings to be taken whilst reducing the occurrence of condensation on the sensors. The flow probe can also be included in a humidification control systems to provide a patient with a desired humidity level or simplify the amount of user input required to set humidity levels. Furthermore, the flow probe can provide a controller with flow information which may then be used to determine certain conditions that could prove to be dangerous to a patient.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: September 4, 2007
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Lewis George Gradon, Stephen William McPhee, Paul John Seakins, Peter John Leonard
  • Patent number: 7051733
    Abstract: A humidification apparatus for humidifying a gas flow to be supplied to a patient or other person in need of such gas is provided. A first temperature sensor is provided for sensing the temperature of the gas flow substantially at an outlet of a humidification chamber and a second temperature sensor is provided for sensing the temperature of the gas flow substantially at the patient end of the conduit. A display is provided for display of temperature information to a user. A controller or processor is configured or programmed to receive input from the temperature sensors and to output a signal to the display to cause a temperature to be displayed to the user which is the lower of the temperature sensed by temperature sensors.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: May 30, 2006
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Lewis George Gradon, Stephen William McPhee, Paul John Seakins, Peter John Leonard
  • Patent number: 7043979
    Abstract: A housing for a sensor to prevent condensate from collecting in the sensor. The housing includes a deflector to channel condensate forming in the housing away from the sensor. A notch is provided at the base of the sensor to ensure any condensate forming on the sensor itself does not collect at the sensor base. Further the interior of the housing is roughened and treated with an antifogging agent to ensure any condensate falls continuously so droplets do not form.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: May 16, 2006
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Malcolm David Smith, Peter John Leonard
  • Publication number: 20040079370
    Abstract: A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anaesthetic gases) such as that which is provided to a patient in a hospital environment. The flow probe is designed to provide both temperature and flow rate sensing of the gases flow by incorporating two sensors (preferably thermistors) and the shape and alignment of the probe enables accurate readings by reducing the occurrence of condensation on the sensors.
    Type: Application
    Filed: October 23, 2003
    Publication date: April 29, 2004
    Applicant: Fisher & Paykel Limited
    Inventors: Lewis George Gradon, Stephen William McPhee, Paul John Seakins, Peter John Leonard
  • Publication number: 20040060558
    Abstract: A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anaesthetic gases) such as that which is provided to a patient in a hospital environment. The flow probe is designed to provide both temperature and flow rate sensing of the gases flow by incorporating two sensors (preferably thermistors) and the shape and alignment of the probe enables accurate readings by reducing the occurrence of condensation on the sensors.
    Type: Application
    Filed: September 17, 2003
    Publication date: April 1, 2004
    Applicant: Fisher & Paykel Limited
    Inventors: Lewis George Gradon, Stephen William McPhee, Paul John Seakins, Peter John Leonard
  • Patent number: 6694974
    Abstract: A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anaesthetic gases) such as that which is provided to a patient in a hospital environment. The flow probe is designed to provide both temperature and flow rate sensing of the gases flow by incorporating two sensors (preferably thermistors) and the shape and alignment of the probe enables accurate readings by reducing the occurrence of condensation on the sensors.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: February 24, 2004
    Assignee: Fisher & Paykel Limited
    Inventors: Lewis George-Gradon, Stephen William McPhee, Paul John Seakins, Peter John Leonard
  • Publication number: 20020100320
    Abstract: A housing for a sensor to prevent condensate from collecting in the sensor. The housing includes a deflector to channel condensate forming in the housing away from the sensor. A notch is provided at the base of the sensor to ensure any condensate forming on the sensor itself does not collect at the sensor base. Further the interior of the housing is roughened and treated with an antifogging agent to ensure any condensate falls continuously so droplets do not form.
    Type: Application
    Filed: January 25, 2002
    Publication date: August 1, 2002
    Inventors: Malcolm David Smith, Peter John Leonard
  • Patent number: 6349722
    Abstract: A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anaesthetic gases) such as that which is provided to a patient in a hospital environment. The flow probe is designed to provide both temperature and flow rate sensing of the gases flow by incorporating two sensors (preferably thermistors) and the shape and alignment of the probe enables accurate readings by reducing the occurrence of condensation on the sensors.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: February 26, 2002
    Assignee: Fisher & Paykel Limited
    Inventors: Lewis George Gradon, Stephen William McPhee, Paul John Seakins, Peter John Leonard
  • Patent number: 6272933
    Abstract: A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anesthetic gases) such as that which is provided to a patient in a hospital environment. The flow probe is designed to provide both temperature and flow rate sensing of the gases flow by incorporating two sensors (preferably thermistors) and the shape and alignment of the probe enables accurate readings by reducing the occurrence of condensation on the sensors.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: August 14, 2001
    Assignee: Fisher & Paykel Limited
    Inventors: Lewis George Gradon, Stephen William McPhee, Paul John Seakins, Peter John Leonard
  • Patent number: RE39724
    Abstract: A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anesthetic gases) such as that which is provided to a patient in a hospital environment. The flow probe is designed to provide both temperature and flow rate sensing of the gases flow by incorporating two sensors (preferably thermistors) and the shape and alignment of the probe enables accurate readings by reducing the occurrence of condensation on the sensors.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: July 17, 2007
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Lewis George Gradon, Stephen William McPhee, Paul John Seakins, Peter John Leonard
  • Patent number: RE40806
    Abstract: A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anaesthetic gases) such as that which is provided to a patient in a hospital environment. The flow probe is designed to provide both temperature and flow rate sensing of the gases flow by incorporating two sensors (preferably thermistors) and the shape and alignment of the probe enables accurate readings by reducing the occurrence of condensation on the sensors.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: June 30, 2009
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Lewis George Gradon, Stephen William McPhee, Paul John Seakins, Peter John Leonard
  • Patent number: D418498
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: January 4, 2000
    Assignee: Fisher & Paykel Limited
    Inventor: Peter John Leonard