Grab bucket for dredging sludge

Details Grab bucket for dredging sludge Grab bucket for dredging sludge

1974-10-30

1976-04-13

Crowder, Clifford D.

Excavating

Clamshell bucket

Spaced pivots

37 71, 294 70, E02F 344

Patent

active

039494985

ABSTRACT:
A grab bucket particularly suitable for dredging the bottom of the sea, rivers, lakes, etc. is provided with bottom plates at the lower portion of a framework from the bottom of which pivotally hang a pair of bucket shells, whereby the bottom plates cooperate with the bucket shells to shield their upper openings when they are swung upwards about their pivotal portions to put their respective confronting edges tightly together in a conventional manner.

REFERENCES:
patent: 671134 (1901-04-01), Hasz
patent: 827635 (1906-07-01), Hone
patent: 921056 (1909-05-01), Andresen
patent: 1097317 (1914-05-01), Hatt
patent: 1464718 (1923-08-01), Lovell
patent: 1544969 (1925-07-01), Cooper et al.
patent: 1817595 (1931-08-01), Wallace
patent: 2177196 (1939-10-01), Williams

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