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Breathing gas dispenser with selectable output flow rates

  • US 20050194050A1
  • Filed: 03/04/2005
  • Published: 09/08/2005
  • Est. Priority Date: 03/04/2004
  • Status: Abandoned Application
First Claim
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1. A breathing gas dispenser with selectable output flow rates, the dispenser comprising:

  • a vessel containing a supply of breathable gas at storage pressure, the vessel in fluid communication with a regulator assembly, the regulator assembly capable of reducing the pressure of the gas to a delivery pressure in a chamber, the chamber having an outlet;

    a plate disposed in the chamber, the plate having a plurality of openings defined therein, the openings disposed in pairs comprising a first opening and a second opening, at least one of the first and the second opening containing an orifice housing with a precision metering orifice defined therein; and

    , a flow selector capable of causing the plate to rotate such that each of the pairs of openings are sequentially brought into registry with the outlet such that a user can select an output flow rate.

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