| 摘要 |
1. An apparatus comprising an intelligence capsule, a radio buoy, releasable means for retaining said buoy and said capsule attached together to be able to sink in sea water as a unit, pressure-responsive means for initiating release of said releasable means at a predetermined hydrostatic pressure, means for urging apart said buoy and capsule when said releasable means has been released; said capsule including a free-flooded chamber; a frangible cap; said chamber being formed at least in part by said frangible cap; in said chamber, a subsurface float assembly comprising an inflatable float adapted to break and remove said cap upon inflation, a winch containing a line connected to said buoy, and a depth compensating dispenser for line connecting said capsule with said subsurface float assembly, said dispenser including means to restrain payment of line from said dispenser; hydrostatic pressure responsive means, disabled from operation by said frangible cap, for activating said payment-restraining means, whereby said payment-restraining means is activated only upon removal of said frangible cap; means responsive to a coded sonic signal for causing said winch to release said buoy to rise to the surface of water; and means for causing said winch to retract said buoy to a predetermined depth below the water surface.
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