Patent ID: 7374217

Claim:
A valve, comprising: a chamber having a first opening edge and a second opening edge, the chamber having a delineation between a first wall portion and a second wall portion; and a chamber shuttle comprising a chamber shuttle cavity having a chamber shuttle cavity wall and a first shuffle cavity wall opening edge, the chamber shuttle cavity wall having at least a first cavity wall portion alongside the second wall portion forming a fluid flow deterrent therewith, and a second cavity wall portion with a first aperture, the second cavity wall portion movable adjacent to the second wall portion, forming a fluid flow deterrent therewith, and away from the second wall portion forming a fluid flow channel between the chamber and the chamber shuttle cavity through the first aperture, the second cavity wall portion having a second shuffle cavity wall opening edge; and a plug positionable apart from the second shuttle cavity wall opening edge forming a fluid flow channel between the chamber and the chamber shuttle cavity, if the second cavity wall portion is adjacent the second wall portion.