06006748 is referenced by 105 patents and cites 254 patents.

A vent valve apparatus (10) for use with a system for supplying breathable gas pressurised above atmospheric pressure to a human or animal. The apparatus (10) includes a gas washout vent (15), a vent valve (18) adapted to progressively restrict the flow area of the washout vent (15), and a pressure sensitive vent valve control means (20,22,23). The control means is adapted to progressively cause the vent valve (18) to restrict the flow area of the gas washout vent (15) in response to increases in the pressure of the gas supply, thereby substantially regulating the volumetric flow of gas and/or CO.sub.2 gas through the washout vent (15) over a range of gas supply pressures.

Title
Vent valve apparatus
Application Number
8/951357
Publication Number
6006748
Application Date
October 16, 1997
Publication Date
December 28, 1999
Inventor
Shane Douglas Hollis
Denistone
AU
Agent
Holland & Hart
Assignee
ResMed
AU
IPC
A62B 9/02
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