Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding
Patent
1985-06-17
1987-11-24
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Echo systems
Distance or direction finding
367130, 114244, 114330, G01S 380, B63B 2156
Patent
active
047093587
ABSTRACT:
A towed underwater transducer assembly includes a spherical housing (10) suspended from a towing vehicle at the end of a cable (12). The housing includes mounting brackets (26, 28) located less than one-half of the circumference of the housing apart along a meridian of the housing (10) centered in the direction of tow with a bridle cable (24) extending between the mounting brackets including a turnbuckle (32) to adjust its tension and a mechanical stop (30). A grooved pulley wheel (22) is mounted at the end of the towing cable (12) with the bridle cable (24) riding in the groove and the pulley wheel (22) free to seek a position along the bridle cable (24) such that the projected line of the tow cable (12) passes essentially through the geometric center of the spherical housing (10) thereby causing the spherical housing (10) to maintain an essentially vertical orientation irrespective of variations in the speed of tow.
REFERENCES:
patent: 3120208 (1964-02-01), Lawrie
patent: 4173195 (1979-11-01), Gongwer
patent: 4203162 (1980-05-01), Clearwaters et al.
patent: 4378750 (1983-04-01), Holzhauer
Appling James
Gongwer Calvin A.
Allied Corporation
Pihulic Daniel T.
Tarcza Thomas H.
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