Depth control apparatus

Details Depth control apparatus Depth control apparatus

1995-05-10

1997-04-08

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367 16, 114245, 114332, G01V 138, B63G 814

Patent

active

056194749

ABSTRACT:
A depth control apparatus for seismic streamers, comprising a central unit adapted for inserted mounting in the streamer substantially in axial alignment with the streamer, a housing which can rotate about the central unit and carries at least one control wing being angularly adjustable about a transverse axis adapted to be substantially horizontal in operative position, and an electric motor for adjusting the angle of the control wing about the transverse axis. The motor is located in the central unit and is adapted to have its current supply through the streamer. The control wing is so arranged on the housing that the transverse axis in operative position runs underneath the central unit. A transmission mechanism for the angular adjustment of the control wing by means of the motor, comprises a slide member which can be moved in the axial direction of the central unit and preferably surrounds the central unit.

REFERENCES:
patent: 3490124 (1970-01-01), Miller
patent: 3531761 (1970-09-01), Tickell et al.
patent: 3531762 (1970-09-01), Tickell
patent: 3931608 (1976-01-01), Cole
patent: 3943483 (1976-03-01), Strange
patent: 3961303 (1976-06-01), Paitson
patent: 4711194 (1987-12-01), Fowler
patent: 4928262 (1990-05-01), Neeley et al.

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