Buoys – rafts – and aquatic devices – Buoy – For mooring a vessel
Patent
1991-08-30
1993-11-30
Oberleitner, Robert J.
Buoys, rafts, and aquatic devices
Buoy
For mooring a vessel
114230, 441 4, B63B 2202
Patent
active
052660613
ABSTRACT:
Ship with mooring structure, comprising a rotatable tube (15) which is connected to the ship (1) for rotation about a vertical axis which is concentric to the rotatable tube, by an axial/radial bearing structure (17) which can absorb axial and radial forces. The rotatable tube (15) has at its lower end structure (19) for fastening anchor chains or cables (21). The rotatable tube (15) is disposed inside the hull of the ship (1) within a fixed tube (3) through the lower end of which the rotatable tube (15) protrudes downwardly. An outer ring of the axial/radial bearing (17) is in integral assembly with a rigid ring (13) which is in turn fastened only to the lower end of the fixed tube (3). The fixed tube (3) encloses the rotatable tube (15) with clearance and is fastened to the hull of the ship only some distance away from and above the rigid ring (13) and is free from fixed securement to the ship below the rigid ring ( 13). Racking of the hull thus cannot be transmitted to the bearing but rather is absorbed by that portion of the fixed tube that extends between the hull and the rigid ring (13).
REFERENCES:
patent: 3525312 (1970-08-01), Beck
patent: 3620181 (1971-11-01), Naczkowski
patent: 4604961 (1986-08-01), Ortloff
patent: 4698038 (1987-10-01), Key
patent: 4701143 (1987-10-01), Key
patent: 4765378 (1988-08-01), Engelskirchen
patent: 4841895 (1989-06-01), Brewerton
patent: 4892495 (1970-01-01), Svensen
patent: 4955310 (1990-09-01), Pollack
Poldervaart Leendert
Stambouzos Michael
Bartz Clifford T.
Oberleitner Robert J.
Single Buoy Moorings Inc.
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