Communications – electrical: acoustic wave systems and devices – Transponders – Sonobuoys and sonobuoy systems
Patent
1972-06-16
1991-03-26
Tarcza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Transponders
Sonobuoys and sonobuoy systems
441 2, H04G 159
Patent
active
050035142
ABSTRACT:
A deep ocean recoverable, tethered acoustic sensor system launchable from aircraft or ship. Upon water entry, the system separates into an upper flotation module containing a receiver/transmitter, antenna and inflatable bag, and a lower flotation module containing an expandable hydrophone array, transmission cable, flotation chamber, cable disconnect means, radio transmitter and antenna, and a flashing beacon light. The lower flotation module also includes a releasable anchor assembly containing a tethering cable. Recovery of the lower flotation module is accomplished by actuation of the cable disconnect means either by a preset timer means contained within the flotation module or by remote electrical command; upon cable disconnect, the anchor assembly and upper flotation module are discarded, and the lower flotation module floats to the surface for recovery. Upon surfacing a transmitter housed within the lower flotation module begins transmitting a signal beacon through an antenna, and a flashing beacon light actuates to aid in the recovery of the module by helicopter.
REFERENCES:
patent: 3130703 (1964-04-01), Thompson
patent: 3237151 (1966-02-01), Thorpe
patent: 3281765 (1966-10-01), Tapline
patent: 3384867 (1968-05-01), Bridges
patent: 3628205 (1971-12-01), Starkey et al.
Cotilla Edward J.
Kribbs, Jr. Edwin H.
McCandless Joseph M.
Savitz Paul
Bechtel James B.
Pihulic Daniel T.
Tarcza Thomas H.
The United States of America as represented by the Secretary of
Tura James V.
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