Vent valve assembly (US6889692)


	Family:			Show 10 known family members
	First Claim: Show all 8 claims			1. A vent valve apparatus for use with a system for supplying, from a gas supply, breathable gas pressurized above atmospheric pressure to a human or an animal, the apparatus including: a gas washout vent; a vent valve associated with the gas washout vent and being adapted to progressively restrict the flow area of the washout vent; and a pressure sensitive control associated with the vent valve and being adapted to progressively cause said vent valve to restrict the flow area of the washout vent in response to increases in the pressure of the gas supply, thereby substantially regulating the flow of gas through the washout vent over a range of gas supply pressures.
	Background / Summary:			Show background / summary
	Drawing Descriptions:			Show drawing descriptions
	Description:			Show description
	Forward References:			Show 1 U.S. patent(s) that reference this one

U.S. References:

Go to Result Set: All U.S. references | Forward references (1) | Backward references (186) | Citation Link

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* some details unavailable

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