Submarine cable grapnel

Details Submarine cable grapnel Submarine cable grapnel

1991-04-17

1993-08-10

Mitchell, David M.

Handling: hand and hoist-line implements

Underwater implement

114221R, B66C 110

Patent

active

052342425

ABSTRACT:
There is disclosed a submarine cable grapnel which is tied to the two rope of a cable ship and is dragged on the bottom of the sea, one grappling unit and at least one attitude stabilizer is connected while this assembly is connected at one end the two rope of the cable ship and at the other end a chain. In this instance, front and rear coupling portions of the grappling element and the attitude stabilizer are positioned so that the center of gravity of each element under the water stays nearer the seabed than a straight line joining the coupling centers of the coupling portions of the elements when the grapnel lands in the normal attitude on the bottom of the sea.

REFERENCES:
patent: 3097874 (1963-07-01), Brockbank
patent: 3129030 (1964-04-01), Brockbank et al.
patent: 3516158 (1970-06-01), Ferrentino
patent: 3765185 (1973-10-01), Peck et al.
patent: 3898852 (1975-08-01), Ezoe et al.
patent: 3990255 (1976-11-01), Cosier et al.
patent: 4761649 (1988-08-01), Matsuzaki et al.
patent: 4768820 (1988-09-01), Barone
patent: 4805547 (1989-02-01), Matsuzaki et al.

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