Communications: electrical – Selective – Having indication or alarm
Patent
1975-09-05
1976-11-02
Tudor, Harold
Communications: electrical
Selective
Having indication or alarm
206328, 217 255, 220 4C, 340 3T, H04B 1300
Patent
active
039900355
ABSTRACT:
A hydrodynamically streamlined, towable sonar apparatus is described charerized by a housing, including a central frame having a circular planar web portion from which extend a plurality of annular coaxial ribs which cooperate with similar ribs extending inwardly from top and bottom concavo-convex cover members to define annular chambers and to provide compressive load bearing support. Transducers are arrayed on the periphery of the frame and enclosed in a curved plastic fairing thereabout. Electronics are accommodated in the annular chambers.
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David Harvey A.
Doty Don D.
Sciascia Richard S.
The United States of America as represented by the Secretary of
Tudor Harold
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