Accession Number : ADD003439

Title :   Propeller-Driven Hydrophone Array Tensioning Device.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Pickens,George O ; Hansen,Charles E

Report Date : 07 Sep 1976

Pagination or Media Count : 5

Abstract : The patent describes a tensioning device for submarine oceanographic structures which includes a surface float having a pendent line suspended therebeneath and a vertical rod support attached to the distal end of the pendent line. An electrical motor attached to the lower end of the support provides ballast to hold the rod in a substantially vertical position and also provides mechanical motive power to turn two coaxially mounted hydrodynamic screws. These screws are attached to the support so as to provide a propulsive force for the support and surface float system. A hitch employing standard marine hardware connects the tensioning system to an underwater structure that this propulsive force is used to tension the structure. Power for the electrical motor is provided by a source of electrical power housed in a small surface vessel and effectively connected to the surface float and pendent line.

Descriptors :   *Underwater propulsion, *Patents, Propellers(Marine), Hydrophones, Underwater structures, Tension, Electric motors, Towed arrays

Subject Categories : Marine Engineering
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE