Air diffuser valve

A diffuser system comprising:

• a manifold having a plurality of openings;
• a fluid inlet fitting on said manifold;
• a plurality of coupling devices, said devices each having at least one manifold end and at least one diffuser end, wherein said manifold end is connected to a corresponding opening on said manifold;
• and
• a plurality of elastomeric check valves, each valve having a molded body, said body having a fluid outlet bill end, a fluid inlet end, and a body wall forming an internal cavity extending from said fluid inlet end to said fluid outlet bill end, said fluid inlet end connected to a diffuser end on one of said coupling devices;
• wherein a fluid enters each elastomeric check valve through its fluid inlet end and exits through its fluid outlet bill end, with an increasing flow rate of said fluid exiting said fluid outlet bill end as fluid manifold pressure increases and a decreasing flow rate of fluid exiting said fluid outlet bill end as fluid manifold pressure decreases.

A diffuser system comprising:

• a manifold having a plurality of openings;
• a fluid inlet fitting on said manifold;
• a plurality of coupling devices selected from a group consisting of a "Y"-shaped conduit, a restrictive orifice, and a conduit nipple, each coupling device connected to one of said openings on said manifold;
• and
• a plurality of elastomeric check valves, each valve having a molded body, said body having a fluid outlet bill end, a fluid inlet end, and a body wall forming an internal cavity extending from said fluid inlet end to said fluid outlet bill end, said fluid outlet bill end having at least one internal orifice extending longitudinally from said internal cavity into said fluid outlet bill end, said fluid inlet end connected to a corresponding opening on one of said coupling devices, with an increasing flow rate of said fluid exiting said fluid outlet bill end as fluid manifold pressure increases and a decreasing flow rate of said fluid exiting said fluid outlet bill end as fluid manifold pressure decreases.