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Philip Rodney Kwok, Kenneth Frederick Hely, Jakob Walter Bruderer, Colin Edward Sullivan: Mask and harness assembly. ResMed, Holland & Hart, April 4, 2000: US06044844 (188 worldwide citation)

A mask and harness assembly (10). The assembly (10) includes a mask (12) a harness (14) including at least one strap (16) connected to the mask (12) and at least one fluid delivery tube (18) connected to, and in fluid communication with, the mask (12). The strap(s) (16) and the tube(s) (18) being ad ...


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Kenneth Frederick Hely, Perry David Lithgow: Valve for use in a gas delivery system. ResMed, Holland & Hart, April 27, 1999: US05896857 (107 worldwide citation)

A safety valve for use in closed systems wherein there is a flow generator delivering oxygen or some other type of breathing gas to a patient. The safety valve of the present invention vents to the open atmosphere in the event that the breathing gas generated by the flow generator diminishes or term ...


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Kenneth Frederick Hely, Perry David Lithgow: Valve for use in a gas delivery system. ResMed, Pillsbury Madison & Sutro, February 20, 2001: US06189532 (65 worldwide citation)

A safety valve for use in closed systems wherein there is a flow generator delivering oxygen or some other type of breathing gas to a patient. The safety valve of the present invention vents to the open atmosphere in the event that the breathing gas generated by the flow generator diminishes or term ...