Ships – Mooring device – Boom type
Patent
1997-09-16
1999-08-10
Sotelo, Jesus D.
Ships
Mooring device
Boom type
114200, B63B 2100
Patent
active
059342161
ABSTRACT:
A compact tensioner/stopper device includes a fairlead which may or may not be part of the device. A set of inboard and outboard pawls are provided. The pawls are spaced and operate in a manner that at least one pari of pawls grabs the chain at any given time. This prevents accidental loss of the chain overboard. The chain is tensioned as the inboard pawls are engaged to the chain and actuated hydraulically to pull the chain inboard. Pulling inboard allows the outboard pawls to slide over at least one link and lock into place behind that link. The inboard pawls are stroked outboard over the next link to be grabbed, with the outboard pawls engaging the chain, the inboard pawls slide outboard to obtain another grip on a subsequent link and the process is repeated to conclude the tensioning. For deployment, the outboard pawls are retracted while the chain is retained by the inboard pawls. The inboard pawls are stroked outboard to pay out the chain. At that time, the outboard pawls grab the chain for temporary support as the inboard pawls are repositioned for the next cycle.
REFERENCES:
patent: 3289626 (1966-12-01), Petrie et al.
patent: 3540396 (1970-11-01), Horton
patent: 3547066 (1970-12-01), Bugaenko et al.
patent: 3638599 (1972-02-01), Nilsen
patent: 3803942 (1974-04-01), Duggan
patent: 3805728 (1974-04-01), Abraham
patent: 3859946 (1975-01-01), Hannerschlag
patent: 4070981 (1978-01-01), Guinn et al.
patent: 4077348 (1978-03-01), Broehl
patent: 4186464 (1980-02-01), Sandoy
patent: 4862821 (1989-09-01), Ballantyne
Bardex Hydranautics, Hydraulic Chain Jacks, Miscellaneous Information, date unknown, 5 pages.
Bardex Corporation, Offshore Mooring and Tensioning Systems, Miscellaneous Information, date unknown, 4 pages.
Auger TLP spawns novel handling systems, Offshore Engineer, Sep. 1991, 2 pages.
Smith Berger Marine, Inc., Operation and Maintenance Manual for RCS-48 Releasable Chain Stopper, 1991.
Peters, Basil, Linear chain tensioning of moored production vessels, World Oil, Apr.-Jun., 1993, 8 pages.
Lovie, Peter M., et al., Developments in System Components for Disconnectable FPSOs, The Third Offshore Symposium, FPSO Technology, Feb., 1993, 15 pages.
childers Mark A.
Murdoch Christopher
Oceaneering International Inc.
Sotelo Jesus D.
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