Device for the collection of various substances present in a liquid

A floating barrage for recovery of light substances floating on a body of water, a surface of said water being choppy or rough, comprising:

• a. a flexible, elongated, inflatable floating structure;
• b. a plurality of collecting compartments connected to said floating structure lengthwise, said compartments being constructed and arranged to be partially submerged in said body of water;
• c. each said compartment comprising an upper chamber and a lower chamber;
• d. said upper chamber comprising at least one inlet means, said inlet means being constructed and arranged to be positioned near said surface of said body of water, and said inlet means comprising inlet valve means for allowing water and floating light substances to flow into said upper chamber while preventing return flow from said upper chamber;
• e. said upper chamber further comprising valve means communicating with said lower chamber for allowing said water and light substances to flow from a lower part of said upper chamber into said lower chamber while preventing return flow into said upper chamber;
• f. said lower chamber comprising at least one outlet means, said outlet means being constructed and arranged to be positioned below said surface of said body of water, and said outlet means comprising outlet valve means for allowing said water to flow from a lower part of said lower chamber into said body of water while preventing return flow into said lower chamber;
• g. said lower chamber further comprising valve means communicating with all adjacent lower chambers for allowing flow of said waters and floating substances through said lower chambers, in a direction from a first end of said plurality of collecting compartments towards a second end of said plurality of collecting compartments, while preventing return flow in a direction from said second end towards said first end;
• and
• h. wherein all said valve means are constructed and arranged to respond freely and automatically to vertical movements of said choppy or rough surface of said body of water to allow flow of said water and light substances to said upper chambers of each compartment, downwardly from said upper chamber to said lower chamber, outwardly from said lower chambers of each compartment, and longitudinally through said lower chambers of said plurality of compartments from said first end to said second end of said plurality of compartments.