Free fall submersible life saving device for offshore structures
AssigneePolitechnika Gdanska
InventorsJerzy W. Doerffer, Lech Rowinski, Andrzej Niepieklo, Jan Klopocki, Boguslaw Siwek
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Abstract
A free fall, submersible life saving device for an offshore structure has a spherical pressure shell in a casing. The upper part of the device has a lifting frame and at least one manhole closed with a cover and the lower part has ballast, an anchor, and a windlass 5 for the anchor rope having automatic control of the tension in the anchor rope. The device is launched by a catapult on the offshore structure for horizontal movement in free fall to the water surface, where it submerges and is anchored until resurfacing, by release of the anchor, for rescue.
Claims16
A free fall, submersible life saving device for an offshore structure, the device comprising:
- a spherical pressure-shell capsule for survivors, the pressure shell having at least one manhole with a closing cover in an upper part and glands for cables, piping and a windlass mechanical drive in a lower part,
- an outer casing about the pressure-shell capsule, the outer casing having a lower part;
- a windlass with an anchor rope in the lower part of the casing, the windlass having the windlass mechanical drive through one of the glands into the pressure shell and automatic control means for controlling the force in the anchor rope;
- a ballast and mechanical-grip means for detachably connecting the ballast to the lower part of the casing;
- and
- an anchor connected to the anchor rope and holder means for detachably fastening the anchor to the ballast.
Dependencies are inferred from the claim text.