Excavating – Peat excavators
Patent
1975-02-10
1976-04-06
Eickholt, E. H.
Excavating
Peat excavators
37195, 37DIG8, 299 18, E02F 314
Patent
active
039479803
ABSTRACT:
An apparatus and process for harvesting deep-sea particles, such as nodules, from a substantially planar deep-sea bottom is disclosed. A vessel on the surface tows a heavier than water sled along the ocean bottom. Towing occurs through a single towing strip connected to the sled at the lower end, connected to the vessel at the upper end, and extending angularly downward from the vessel to the sled. The towing strip includes an integral elevator mechanism comprising in the preferred embodiment a series of buckets having perforated sides conveyed by and on an endless belt traveling on the towing strip. The series of buckets on the endless belt empties a concentrator collector having the accumulated and harvested particles in the towed sled. The buckets ride upwardly from the sled to the surface vessel on a first track on the towed strip. The bucket contents are then emptied at the surface typically within the vessel, and thereafter are reconveyed to the sled on a second and separate track on the towing strip. Thus, a process is disclosed of towing a collector; scraping particles and sediment from the oceam bottom at the collector; concentratingn the particles at the collection point interior of the collector, free of ambient sediment; and, continuously conveyinr in a series of buckets the particles to a collection area above the surface of the sea.
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Andrews James E.
Morgenstein Maurice E.
Eickholt E. H.
Hawaii Marine Research, Inc.
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