Patent ID: 7566044
Filing Date: 2009-07-28
Classification: F16K,F16L,Y10T

Abstract:
1. A coupling comprising: a body having a valve including a first end and a second end and being movable from a first position to a second position, the valve having an oxygen passageway extending between the first and second ends in communication with a first inlet for a flow of oxygen to the oxygen passageway when the valve is in the first position and a second inlet for a flow of oxygen to the oxygen passageway when the valve is in the second position, the valve having an enlarged portion positioned at the first end, the first inlet extending through the enlarged portion to the oxygen passageway, the second inlet being positioned on the valve between the enlarged portion and the second end, the first inlet being sized to bleed trapped oxygen from the first end to the oxygen passageway, and the second inlet being sized to allow for the passage of a greater volume of oxygen to the oxygen passageway as compared to the first inlet, the second end having an oxygen outlet for a flow of oxygen from the valve.