Method and apparatus of launching floats to lighten underwater c

Details Method and apparatus of launching floats to lighten underwater c Method and apparatus of launching floats to lighten underwater c

1975-07-24

1978-01-10

Gilliam, Paul R.

9 8R, 61107, F16L 104

Patent

active

040671992

ABSTRACT:
To enable the release and consequent recovery of a support float which supports a load, e.g. a pipe, as it is lowered to the sea bed, a marker buoy is lowered with the float to be released when the load reaches the sea bed, the marker buoy having an inflated flexible envelope which is trapped in a housing fast with the float and having an opening through which the float can escape only when it has been compressed to a predetermined extent under the effects of a predetermined hydrostatic pressure. The marker buoy is connected to the float by a cable and the float is released from the load either by operations on that cable, or on a release cable connected to the float, on appearance of the marker buoy at the water surface.

REFERENCES:
patent: 3262275 (1966-07-01), Perret
patent: 3620028 (1971-11-01), Wilde
patent: 3727417 (1973-04-01), Shaw
patent: 3795115 (1974-03-01), Bergquist et al.

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