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4494475 System for mooring a floating structure
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NEW PATENTS 'This Section contains abstracts and, where appropriate, illustrations of recently issued United States patents and ,ublished patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the Pergamon PATSEARCH ~' online database in accordance with interest profik:s developed by the Editors. Further information about Pergamon PATSEARCH ~ can be obtained from Perga:non InfoLine Inc., 1340 Old Chain Bridge Road, McLean, Virginia 22101 U.S.A. Copies of complete patents announced in this Section are available from Pergamon InfoLine Inc. for $8 per copy. Paym,mt with order is required. Orders outside North America add $2 for air postage. Order by patent number tbr Pergamon InfoLine only.
4490891 LINE CLAMP Maxwell G Begley, Keith Munslow-Davies, Dianella, Western Australia 6062, Australia The present invention provides a line clamp comprising means for securing a member, and means for clamping the member to a line such as a wire line wherein the means for clamping the member to a line comprises a first clamp body portion comprising a cam mounted for partial rotation and being connected to the means for securing a member, a second clamp body portion comprising a further cam mounted for partial rotation, means being provided for detachably securing the second clamp body portion to the first clamp body portion and said cams being so l[ocated that when the first and second clamp body portions are secured together, a line may be clamped between them, said cams comprising working surfaces having profiles with relatively low portions flanked by relatively high portions and said line being normally clamped by the said :relatively low portions. The line clamp of the present invention is particularly envisaged for use underwater especially for sub-sea operation :such as when operating oil rigs, but can be used in other applications.
4493591 FLOATABLE OFFSHORE PRODUCTION STRUCTURE AND METHOD FOR FABRICATION, TRANSPORT AND INSTALLATION OF SAME Alex W Francis Engineering Inc
assigned
to
Combustion
A steel-reinforced concrete gravity structure mounts a support framework with which to elevate a production deck above sea level. The structures are separately fabricated on shore, assembled in bordering shallow water, transported as a unit to the subsea well site, and subsequently installed on the sea floor.
4494475 SYSTEM FOR MOORING A FLOATING STRUCTURE Tor Eriksen, Buoy, Norway assigned to Moss Rosenberg Verft A/S Mooring systems for floating vessels positioned off-shore. A rigid column extends from the sea floor and provides a single-point mooring for a barge or other floating structure which includes facilities for storing oil or liquified gases. The barge may also include facilities for liquefying gases. A fluid line for oil or gas extends from below the water line inside the vertical column to the mooring point above the water line. A pair of mooring arms is pivotally attached to a table pivoted on the mooring point, and the arms diverge with their other ends attached to the barge at zones spaced from each other. The arms are extensible and each of them has a compensator which tends to hold each arm to a predetermined length. Each compensator also restrains the rate of movement during extension and contraction o f its arm. A fluid-flow line extends from the mooring point to the barge with flexible interconnections between the fluid-flow lines above the water line. A third arm is provided in certain embodiments of the invention and a fluid line is provided from a sea flow upwardly through the vertical column and then along one of the arms to the barge or other floating structure.
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Jl.Pl~iinlll,,,Llll
NEW PATENTS 'This Section contains abstracts and, where appropriate, illustrations of recently issued United States patents and ,ublished patent applications filed from over 30 countries under the Patent Cooperation Treaty. This information was obtained from recent additions to the Pergamon PATSEARCH ~' online database in accordance with interest profik:s developed by the Editors. Further information about Pergamon PATSEARCH ~ can be obtained from Perga:non InfoLine Inc., 1340 Old Chain Bridge Road, McLean, Virginia 22101 U.S.A. Copies of complete patents announced in this Section are available from Pergamon InfoLine Inc. for $8 per copy. Paym,mt with order is required. Orders outside North America add $2 for air postage. Order by patent number tbr Pergamon InfoLine only.
4490891 LINE CLAMP Maxwell G Begley, Keith Munslow-Davies, Dianella, Western Australia 6062, Australia The present invention provides a line clamp comprising means for securing a member, and means for clamping the member to a line such as a wire line wherein the means for clamping the member to a line comprises a first clamp body portion comprising a cam mounted for partial rotation and being connected to the means for securing a member, a second clamp body portion comprising a further cam mounted for partial rotation, means being provided for detachably securing the second clamp body portion to the first clamp body portion and said cams being so l[ocated that when the first and second clamp body portions are secured together, a line may be clamped between them, said cams comprising working surfaces having profiles with relatively low portions flanked by relatively high portions and said line being normally clamped by the said :relatively low portions. The line clamp of the present invention is particularly envisaged for use underwater especially for sub-sea operation :such as when operating oil rigs, but can be used in other applications.
4493591 FLOATABLE OFFSHORE PRODUCTION STRUCTURE AND METHOD FOR FABRICATION, TRANSPORT AND INSTALLATION OF SAME Alex W Francis Engineering Inc
assigned
to
Combustion
A steel-reinforced concrete gravity structure mounts a support framework with which to elevate a production deck above sea level. The structures are separately fabricated on shore, assembled in bordering shallow water, transported as a unit to the subsea well site, and subsequently installed on the sea floor.
4494475 SYSTEM FOR MOORING A FLOATING STRUCTURE Tor Eriksen, Buoy, Norway assigned to Moss Rosenberg Verft A/S Mooring systems for floating vessels positioned off-shore. A rigid column extends from the sea floor and provides a single-point mooring for a barge or other floating structure which includes facilities for storing oil or liquified gases. The barge may also include facilities for liquefying gases. A fluid line for oil or gas extends from below the water line inside the vertical column to the mooring point above the water line. A pair of mooring arms is pivotally attached to a table pivoted on the mooring point, and the arms diverge with their other ends attached to the barge at zones spaced from each other. The arms are extensible and each of them has a compensator which tends to hold each arm to a predetermined length. Each compensator also restrains the rate of movement during extension and contraction o f its arm. A fluid-flow line extends from the mooring point to the barge with flexible interconnections between the fluid-flow lines above the water line. A third arm is provided in certain embodiments of the invention and a fluid line is provided from a sea flow upwardly through the vertical column and then along one of the arms to the barge or other floating structure.