Patent ID: 7036521
Filing Date: 2006-05-02
Classification: F16K,Y10T

Abstract:
1. A slide type valve for regulating a gas generating system having at least a first and a second gas concentrating bed unit, the invention comprising: an outer body having a slide face with at least four open ports communicating with an interior cavity formed in the outer body; said slide face having an exterior surface and an essentially flat interior surface; the open ports forming a vent port and at least two bed ports each of which is adapted to communicate an air flow with a gas concentrating bed unit; the vent port formed between two bed ports; the open ports further forming a feed air port formed in the outer body adapted for communicating a feed air flow into the interior cavity of the outer body; a slide block having an essentially flat face suitable for sliding along the interior surface of the slide face of the outer body; the slide block having a hollow interior cavity and a first and a second opening formed through the flat face compatible with the open ports of the outer body; and the slide face of the slide block having a closing portion for controllably closing the vent port positioned between the first and second openings; and a control means for moving the slide block between a first state and a second state for desired air flow between the gas concentrating bed units and the vent port.