Abstract: A method and device for extracting fluid from a body of fluid is has a bellows with a feed system interfaced to a first end of the bellows. A floating head is interfaced to a distal second end of the bellows and has one or more buoyancy elements. The buoyancy elements cause the floating head to float at a surface of the fluid. One or more inlets on a lower surface of the floating head are in fluid communication with the distal second end of the bellows, such that, fluid from a stratum beneath the surface of the fluid is drawn into the inlet(s), passes through the bellows, and into the feed system.

Abstract: A flow control system for a body of water includes a floating portion that is covered by a shroud and includes a buoyant member. The floating portion has an inlet portion within the shroud and the inlet portion is suspended distal from the floating portion forming a gap. A stationary portion is interfaced to a containment surface of the body of water and is in fluid communication with a drainage system. An extendable member is interfaced to the inlet portion, fluidly interfacing an orifice of the inlet portion to the stationary portion, and therefore to the drainage system. When in use, fluid from below a surface of the body of water flows through the gap, into the orifice, through the extendable member, and out through the drainage system. The flow rate of the fluid is constant through a range of depths of the body of water.

Abstract: A flow control system for a body of water includes a floating portion that is covered by a shroud and includes a buoyant member. The floating portion has an inlet portion within the shroud and the inlet portion is suspended distal from the floating portion forming a gap. A stationary portion is interfaced to a containment surface of the body of water and is in fluid communication with a drainage system. An extendable member is interfaced to the inlet portion, fluidly interfacing an orifice of the inlet portion to the stationary portion, and therefore to the drainage system. When in use, fluid from below a surface of the body of water flows through the gap, into the orifice, through the extendable member, and out through the drainage system. The flow rate of the fluid is constant through a range of depths of the body of water.

Abstract: A method and device for extracting fluid from a body of fluid is has a bellows with a feed system interfaced to a first end of the bellows. A floating head is interfaced to a distal second end of the bellows and has one or more buoyancy elements. The buoyancy elements cause the floating head to float at a surface of the fluid. One or more inlets on a lower surface of the floating head are in fluid communication with the distal second end of the bellows, such that, fluid from a stratum beneath the surface of the fluid is drawn into the inlet(s), passes through the bellows, and into the feed system.