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1. WO2012070952 - SEVENTH BRIDLE BLOCK SYSTEM FOR A PARAVANE

Publication Number WO/2012/070952
Publication Date 31.05.2012
International Application No. PCT/NO2011/000331
International Filing Date 22.11.2011
IPC
B63B 21/66 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
21Tying-up; Shifting, towing, or pushing equipment; Anchoring
56Towing or pushing equipment
66Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
CPC
B63B 21/66
BPERFORMING OPERATIONS; TRANSPORTING
63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
21Tying-up; Shifting, towing, or pushing equipment; Anchoring
56Towing or pushing equipment
66Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
G01V 1/3826
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
1Seismology; Seismic or acoustic prospecting or detecting
38specially adapted for water-covered areas
3817Positioning of seismic devices
3826dynamic steering, e.g. by paravanes or birds
Applicants
  • BARO MEKANISKE AS [NO]/[NO] (AllExceptUS)
  • ØXSETH, Erlend [NO]/[NO] (UsOnly)
  • GUMOS, Michal [NO]/[NO] (UsOnly)
Inventors
  • ØXSETH, Erlend
  • GUMOS, Michal
Agents
  • FLUGES PATENT AS
Priority Data
2010164922.11.2010NO
61/416,09122.11.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SEVENTH BRIDLE BLOCK SYSTEM FOR A PARAVANE
(FR) SYSTÈME DE SEPTIÈME BLOC DE BRIDES POUR PARAVANE
Abstract
(EN)
The invention is a bridle block system for a paravane (9) for seismic equipment, comprising: - a main bridle block (1) with a connecting point (2) for a towing line from a seismic vessel, and with attachment points (7b, 5b) for first and second triples of bridle lines (8, 11) to first and second lugs (41, 42, 43, 51, 52, 53) at either ends of the paravane (9). The main block (1) comprises a pivot point (3) for a pivot arm (7, 5), which has an arm (7) with an attachment point (7b) near its end for the first triple bridle lines (8), and an oppositely directed arm (5) with an attachment point (5b) near its outer end for second triple bridle lines (11). An auxiliary moment arm (12) at the second arm's (5) side is connected to a seventh bridle line (13), further connected to an actuator (14) arranged near the first bridle lines' (8) forward lugs' (41, 42, 43) of the paravane (9). The seventh bridle (13) exerts a force imbalance between the fore and aft bridle lines (8, 11) so as for changing the paravane's angle of attack.
(FR)
L'invention concerne un système de bloc de brides pour paravane (9) destiné à un équipement sismique, qui comprend : un bloc de brides principal (1) doté d'un point de connexion (2) d'un câble de remorquage à partir d'un navire sismique, et des points de fixation (7b, 5b) des premiers et seconds câbles de brides triples (8, 11) aux premières et secondes pattes (41, 42, 43, 51, 52, 53) au niveau des deux extrémités du paravane (9). Le bloc principal (1) comprend un point d'articulation (3) d'un bras d'articulation (7, 5), qui possède un bras (7) doté d'un point de fixation (7b) à proximité de l'extrémité des premiers câbles de brides triples (8), et un bras (5) dirigé à l'opposé doté d'un point de fixation (5b) à proximité de l'extrémité extérieure des seconds câbles de brides triples (11). Un bras de levier auxiliaire (12) côté second bras (5) est connecté au septième câble de brides (13), et à un actionneur (14) placé à proximité des pattes avant (41, 42, 43) des premiers câbles de brides (8) du paravane (9). La septième bride (13) exerce un déséquilibre de forces entre les câbles de brides longitudinalement (8, 11) de façon à changer l'angle d'attaque du paravane.
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