Buoyancy device and method

Details Buoyancy device and method Buoyancy device and method

1976-07-09

1977-09-20

Blix, Trygve M.

Ships

Building

Canal and ferry boats

114 16E, 61112, B63B 2152

Patent

active

040486869

ABSTRACT:
Buoys for use in submarine cable and pipe laying are fastened to the cable or pipe by lengths of line stored within the buoys. The buoys descend with the cable to a point where they are unaffected by wave action. Water is free to enter the bottom of the buoys and compress the gas therein thus reducing buoyancy and, through the release of a brake, controlled, in turn, by a float, allowing the line from which the cable or pipe is suspended to pay out.

REFERENCES:
patent: 3402687 (1968-09-01), Tsuji
patent: 3620028 (1971-11-01), Wilde
patent: 3628205 (1971-12-01), Starkey
patent: 3753311 (1973-08-01), Boone
patent: 3855656 (1974-12-01), Blenkarn
patent: 3961389 (1976-06-01), Dovell

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