Depth controllers for seismic streamer cables with dimension var

Details Depth controllers for seismic streamer cables with dimension var Depth controllers for seismic streamer cables with dimension var

1974-05-08

1976-03-09

Wilbur, Maynard R.

Communications: electrical

Selective

Having indication or alarm

114235B, 43 4313, G01V 100, B60P 300

Patent

active

039434834

ABSTRACT:
A depth controller having a streamlined body which comprises retractable and extendable lift producing means, such as a main pair of vanes that can produce a variable negative lift and an auxiliary pair of vanes that can produce a variable positive lift. Each pair is movable by translation or rotation in a single plane, inclined relative to the horizontal. Depth control means are operatively coupled to retract the main pair of vanes inward as the controller moves from the water surface down to a reference depth and to extend the auxiliary pair of vanes outward as the controller falls below the reference depth. Each controller can be used to effectively maintain a seismic streamer cable section at or near the desired reference depth.

REFERENCES:
patent: 3380424 (1968-04-01), Bowker et al.
patent: 3680520 (1972-08-01), Smith
patent: 3839985 (1974-10-01), Modert

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