Patents by Inventor Adrienne Mary Claire Walker

Adrienne Mary Claire Walker 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).

  • Mask with anti-asphyxia valve
    Patent number: 7174893
    Abstract: An anti-asphyxia valve includes at least one flap having a first portion adapted for mounting to the housing and a second portion adapted to flex between a first open position allowing gas to pass from the patient side to the housing interior through the at least one port, and from the blower side through the at least one port, to atmosphere when a difference in gas pressure in the housing interior and atmosphere is below a predetermined operating threshold, and a second forcibly closed position substantially occluding the at least one port when the difference in gas pressure between the housing interior and atmosphere is substantially equal to or above the operating threshold.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: February 13, 2007
    Assignee: ResMed Limited
    Inventors: Adrienne Mary Claire Walker, Geoffrey Crumblin, Gregory Scott Smart, Michael Kassipillai Gunaratnam, Philip Rodney Kwok, Perry D. Lithgow
  • Gas delivery connection assembly
    Patent number: 7089939
    Abstract: An anti-asphyxia valve is adapted to, in use, be disposed between a patient and structure to deliver a breathable gas to the patient. The valve includes a housing having an interior, at least one port to provide fluid communication between the housing interior and atmosphere and at least one flap including a first portion and a second portion. The first portion is adapted for mounting to the housing. The second portion is adapted to flex between a first biased open position allowing gas to pass from the housing interior through the at least one port to atmosphere when a difference in gas pressure in the housing interior and atmosphere is below a predetermined operating threshold and a second forced closed position substantially occluding the at least one port when the difference in gas pressure between the housing interior and atmosphere is substantially equal to or above the operating threshold.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: August 15, 2006
    Assignee: ResMed Limited
    Inventors: Adrienne Mary Claire Walker, Geoffrey Crumblin, Gregory S. Smart, Michael K. Gunaratnam, Philip R. Kwok
  • Flow generator remote control
    Patent number: D440208
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: April 10, 2001
    Assignee: ResMed Limited
    Inventors: Susan Robyn Lynch, Zdzislaw Antoni Ziolkowski, Adrienne Mary Claire Walker