Device for the retrieval of ocean bottom seismic cable

Details Device for the retrieval of ocean bottom seismic cable Device for the retrieval of ocean bottom seismic cable

1997-11-12

2000-07-04

Oda, Christine K.

Implements or apparatus for applying pushing or pulling force

Method or apparatus for placement of conductive wire

Conduit snakes

254265, B65H 5400

Patent

active

060827106

ABSTRACT:
A device for retrieving ocean bottom seismic cable as the cable is pulled up from the bottom and hauled aboard a vessel. The cable is first led over a front wheel located on an arm which is pivotally mounted for movement about an axis. The cable is then passed under a second wheel before it is brought aboard the vessel, optionally via one or more additional wheels. A damper is provided between a fixed point on the arm, spaced apart from the axis and a fixed point on the vessel, so that the front wheel is raised in response to lower tension in the cable and is lowered in response to an increase in tension in the cable, thereby counteracting any variations in the tension of the cable.

REFERENCES:
patent: 5199659 (1993-04-01), Zibilich, Jr.
patent: 5284323 (1994-02-01), Pawkett

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