Single line deep-sea bucket and release

Details Single line deep-sea bucket and release Single line deep-sea bucket and release

1981-05-15

1983-02-15

Crowder, Clifford D.

Excavating

Peat excavators

37183A, 37184, 7386442, B66C 302, E02F 344

Patent

active

043732780

ABSTRACT:
A single line deep-sea bucket and release is provided for mining operations and emergency fouling situations at extreme depths. A clamshell mechanism is provided with a bucket support frame and a hoisting frame with coupling means maintaining a fixed connection on descent. The clamshell, descending in the normally open position, is closed on ascent by an operating cable actuated to close by a measured withdrawal of the two frames and coupling means to which the actuating cable is fastened. Emergency shell release opening is caused by gravity force of a descending messenger on the single hoisting cable to trip a release of the coupling means and thereby the attached withdrawn operating cable to descend and open the shell.

REFERENCES:
patent: 400936 (0000-01-01), Morris
patent: 1477679 (1924-03-01), Woolley
patent: 2242940 (1941-05-01), Caoli
patent: 3036393 (1962-05-01), Baird, Jr.
patent: 3357506 (1967-12-01), De Bosredon
patent: 3762078 (1973-10-01), Wetherbee
patent: 3949497 (1976-04-01), Crump
patent: 3996678 (1976-12-01), Amann et al.
patent: 4116069 (1978-09-01), Lezgintsev et al.
patent: 4196531 (1980-04-01), Balligand et al.

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