Bivalve mollusk dredge

Details Bivalve mollusk dredge Bivalve mollusk dredge

1988-07-22

1989-05-09

Crowder, Clifford D.

Excavating

Peat excavators

A01K 7500, E02F 500

Patent

active

048276359

ABSTRACT:
A bivalve mollusk collecting device resting on two runners with guides to allow upward movement of the collection device with springs to maintain a downward pressure on the collection device as it is dragged through the sand to collect the mollusks. The device has a plurality of acutely angled teeth positioned in a "V" shape pointed rearwardly to form a trough shape with spaces between the teeth sufficient to allow the sand and small sized mollusks to escape to the side and below the trough. Object jumper members extend forwardly at a 45 degree angle below and in front of the teeth to cause the entire collection apparatus to ride over immoveable objects. A grading device rearwardly of the collection apparatus includes horizontal rods again spaced to allow sand and smaller mollusks to escape to the side and below the grading apparatus. An accumulating cage is positioned to the rear of the skid to accumulate the mollusks that are collected.

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patent: 4112602 (1978-09-01), Kato et al.
patent: 4425723 (1984-01-01), Erlandsen

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