Deflector devices

Details Deflector devices Deflector devices

2005-04-12

2005-04-12

Sotelo, Jesus D. (Department: 3617)

Ships

Towing or pushing

Submerged object

C114S245000, C114S253000

Reexamination Certificate

active

06877453

ABSTRACT:
A deflector device for use with a tow line between a seismic survey vessel and a tow, in particular a streamer or streamer array, in the water behind the vessel comprises a vertically oriented wing-shaped body for producing a sideways force as it is towed through the water, and a towing bridle adapted to connect the wing-shaped body to the tow line. The bridle comprises first and second connecting elements connected between the tow line and respective longitudinally-spaced points along the high pressure side of the wing-shaped body. The wing-shaped body includes one or more buoyancy elements to render it slightly positively buoyant, and the length of at least one of the connecting elements is adjustable by remote contol in order to tilt the wing-shaped body. This gives the sideways force a vertical component, and so allows remote control of the depth of the deflector device, as well as its lateral offset from the vessel.

REFERENCES:
patent: 3613629 (1971-10-01), Rhyne et al.
patent: 3703876 (1972-11-01), Michelsen
patent: 4055138 (1977-10-01), Klein
patent: 6234102 (2001-05-01), Russell et al.
patent: 0 613 025 (1994-08-01), None
patent: WO 00 76839 (2000-12-01), None

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