CPC C12M 23/38 (2013.01) [C12M 21/04 (2013.01); C12M 23/18 (2013.01); C12M 23/26 (2013.01); B65G 5/00 (2013.01); E04H 7/02 (2013.01); F17C 1/007 (2013.01)] | 23 Claims |
1. A cover for a lagoon, the cover comprising:
an expandable membrane;
a plurality of stretchable members coupled to points on opposing sides within the expandable membrane and configured to compress the expandable membrane in a vertical direction; and
a plurality of restraining members coupled to points on opposing sides within the expandable membrane and configured to limit expansion of the expandable membrane in a vertical direction,
wherein the points on the opposing sides within the expandable membrane are on a top surface and a bottom surface of an interior of the expandable membrane.
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