Excavating – Peat excavators
Patent
1980-07-21
1982-06-29
Crowder, Clifford D.
Excavating
Peat excavators
37DIG8, E02F 300
Patent
active
043366627
ABSTRACT:
An apparatus and a related method for deep sea mining utilizing an underwater collection device for gathering material from the ocean floor, containers with a repository for holding gathered material and with a convex lid for receiving a buoyant body, means for depositing the gathered material into the containers, buoyant bodies for lifting the containers to the ocean surface, and a disposable receptacle composed of a dense material for delivering the buoyant bodies to the ocean floor. The apparatus also utilizes a disposable rack to deliver the containers to the ocean floor and dispense them. Cables guide the descent of the receptacle and container rack, and the ascent of the loaded containers. In one embodiment, the buoyant bodies are hollow, ceramic spheres filled with a gaseous substance, and the receptacle is tubular in shape. In alternative embodiments, the bodies are spheres composed of a solid, buoyant material or comprised of a rigidly reinforced envelope containing a plurality of buoyant objects. An endless belt conveyor carries the containers from the rack to a position for loading with gathered material and then to a position adjacent the receptacle where a turnstile transfers a buoyant body into the lid of a container.
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