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公开(公告)号：DK156347B
公开(公告)日：1989-08-07
申请号：DK291484
申请日：1984-06-14
Applicant: ERICSSON TELEFON AB L M
Inventor： SCUKA VIKTOR , AAKERLUND JOHN
Abstract: PCT No. PCT/SE83/00349 Sec. 371 Date May 18, 1984 Sec. 102(e) Date May 18, 1984 PCT Filed Oct. 10, 1983 PCT Pub. No. WO84/01673 PCT Pub. Date Apr. 26, 1984.An overvoltage protector in an apparatus having two moving parts (1,5). The parts are connected via a bearing (2,3,4), one part being stationary in relation to a substructure (13) at an electrical ground potential. The moving part (5) can be subjected to a voltage and the stationary part (1) is electrically connected to the grounded substructure. For preventing current from passing through the bearing between the parts, an electrical insulator (6,7) is provided in the current path which can occur through the bearing as a result of different potentials of the parts. The moving part (5) has a ring (9) spaced from a ring (8) connected to electrical ground such that a spark discharge gap (10) is formed between the parts. The bearings (2,3,4) are protected against current flow by the electrical insulator (6,7) up to a given voltage threshold. In order that this voltage threshold will not be exceeded, the spark discharge gap (10) comes into operation at a lower value than this voltage threshold and keeps the voltage difference between the parts at this lower value.
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公开(公告)号：NO771530L
公开(公告)日：1977-11-04
申请号：NO771530
申请日：1977-05-02
Applicant: ERICSSON TELEFON AB L M
Inventor： CARLSSON STIG TURE , RASMUSSON BO MAGNUS , SCUKA VIKTOR
Abstract: Laying tool for laying of submarine cable in a sea-bottom trench. The tool comprises a drag unit and a pulling tube joined by a cardanic suspension and drawn by a vessel for use under variable sea and bottom conditions. The cable is laid out from the vessel through the pulling tube, a canal in the drag unit, and, finally, into a sea-bottom trench formed by a ploughing device on the drag unit. This unit is constructed so that the cable is forced down onto the bottom of the trench even if the unit is not operating in a proper position due to a rough sea-bottom. Moreover, the drag unit is constructed so that all material turned up from the sea-bottom is pushed aside from the trench and the ploughing device. The laying tool is also provided with floating tanks adjusted so that the drag unit without cable will float but with cable it will sink. The tanks may be filled with both water and air to facilitate submergence and refloating of the drag unit.
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公开(公告)号：NO142691C
公开(公告)日：1980-09-24
申请号：NO772931
申请日：1977-08-23
Applicant: ERICSSON TELEFON AB L M
Inventor： LUNDBERG BO ESKIL OLAUS , SCUKA VIKTOR
Abstract: An electrical cable of the self-floating type for use in marine environments is provided with elements for taking up mechanical tractive forces. The electrical conductors of the cable are surrounded by an inner friction layer with a low friction coefficient. Around this layer a force equalizing layer of metallic material is provided and this layer is surrounded by hollow strands of soft plastic material. An outer friction layer of the same material as the inner friction layer surrounds the hollow strands and the whole system together with the elements for taking up the tractive forces is embedded in a cable mantle of rubber-like plastic material.
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公开(公告)号：CA1056608A
公开(公告)日：1979-06-19
申请号：CA277609
申请日：1977-05-02
Applicant: ERICSSON TELEFON AB L M
Inventor： CARLSSON STIG , RASMUSSEN BO , SCUKA VIKTOR
Abstract: Laying tool for laying of submarine cable in a seabottom trench. The tool consisting of a drag unit and a pulling tube joined by means of a cardanic suspension and to be drawn by a vessel may be used for the most variable sea and bottom conditions. The cable is laid out from the vessel through the pulling tube, a channel in the drag unit, and, finally, into a sea-bottom trench turned up by a ploughing means on the drag unit. This unit is constructed so that the cable is forced down onto the bottom of the trench even if the unit is not operating in a proper position due to a rough sea-bottom. Moreover, the drag unit is constructed so that all material turned up from the sea-bottom is pushed aside from the trench and the ploughing means. The laying tool may also be provided with floating tanks adjusted so that the drag unit without cable will float but with cable it will sink. The tanks may be filled with both water and air to facilitate submergence and refloating of the drag unit.
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公开(公告)号：DE2718272A1
公开(公告)日：1977-11-17
申请号：DE2718272
申请日：1977-04-25
Applicant: ERICSSON TELEFON AB L M
Inventor： CARLSSON STIG TURE , RASMUSSON BO MAGNUS DIPL ING , SCUKA VIKTOR
Abstract: Laying tool for laying of submarine cable in a sea-bottom trench. The tool comprises a drag unit and a pulling tube joined by a cardanic suspension and drawn by a vessel for use under variable sea and bottom conditions. The cable is laid out from the vessel through the pulling tube, a canal in the drag unit, and, finally, into a sea-bottom trench formed by a ploughing device on the drag unit. This unit is constructed so that the cable is forced down onto the bottom of the trench even if the unit is not operating in a proper position due to a rough sea-bottom. Moreover, the drag unit is constructed so that all material turned up from the sea-bottom is pushed aside from the trench and the ploughing device. The laying tool is also provided with floating tanks adjusted so that the drag unit without cable will float but with cable it will sink. The tanks may be filled with both water and air to facilitate submergence and refloating of the drag unit.
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Patent Agency Ranking
公开(公告)号：NO771530A
公开(公告)日：1977-11-04
申请号：NO771530
申请日：1977-05-02
Applicant: ERICSSON TELEFON AB L M
Inventor： CARLSSON STIG TURE , RASMUSSON BO MAGNUS , SCUKA VIKTOR
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公开(公告)号：CA1221729A
公开(公告)日：1987-05-12
申请号：CA438711
申请日：1983-10-11
Applicant: ERICSSON TELEFON AB L M
Inventor： SCUKA VIKTOR , AKERLUND JOHN
Abstract: The invention relates to an overvoltage protector in an apparatus having two moving parts. The parts are in mutual communication via a bearing, one part being stationary in relation to a substructure at ground potential. The moving part can be subject to a voltage and the stationary part is electrically connected to the earthed subsubstructure. For preventing a current passing through the bearing between the parts, an electrical insulator is provided in the current path through the bearing. The moving part has a projection at a distance from an electrode connected to ground such that a spark discharge gap is formed between mutually moving parts. The bearings are protected against current by the electrical insulator up to a given voltage threshold. In order that this voltage threshold will not be exceeded, the spark discharge gap comes into operation at a lower value than this voltage threshold and keeps the voltage difference between the parts at this lower value.
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公开(公告)号：DK291484A
公开(公告)日：1984-06-14
申请号：DK291484
申请日：1984-06-14
Applicant: ERICSSON TELEFON AB L M
Inventor： SCUKA VIKTOR , AAKERLUND JOHN
Abstract: PCT No. PCT/SE83/00349 Sec. 371 Date May 18, 1984 Sec. 102(e) Date May 18, 1984 PCT Filed Oct. 10, 1983 PCT Pub. No. WO84/01673 PCT Pub. Date Apr. 26, 1984.An overvoltage protector in an apparatus having two moving parts (1,5). The parts are connected via a bearing (2,3,4), one part being stationary in relation to a substructure (13) at an electrical ground potential. The moving part (5) can be subjected to a voltage and the stationary part (1) is electrically connected to the grounded substructure. For preventing current from passing through the bearing between the parts, an electrical insulator (6,7) is provided in the current path which can occur through the bearing as a result of different potentials of the parts. The moving part (5) has a ring (9) spaced from a ring (8) connected to electrical ground such that a spark discharge gap (10) is formed between the parts. The bearings (2,3,4) are protected against current flow by the electrical insulator (6,7) up to a given voltage threshold. In order that this voltage threshold will not be exceeded, the spark discharge gap (10) comes into operation at a lower value than this voltage threshold and keeps the voltage difference between the parts at this lower value.
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公开(公告)号：NO145360B
公开(公告)日：1981-11-23
申请号：NO782564
申请日：1978-07-25
Applicant: ERICSSON TELEFON AB L M
Inventor： LUNDBERG BO ESKIL OLAUS , SCUKA VIKTOR
Abstract: An electrical cable of the self-floating type for use in marine environments is provided with elements for taking up mechanical tractive forces. The electrical conductors of the cable are surrounded by an inner friction layer with a low friction coefficient. Around this layer a force equalizing layer of metallic material is provided and this layer is surrounded by a tube of plastic material showing a number of circumferentially situated grooves. An outer friction layer of the same material as the inner friction layer surrounds the hollow strands and the whole system together with the elements for taking up the tractive forces is embedded by a cable mantle of rubber-like plastic material.
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公开(公告)号：NO782564A
公开(公告)日：1979-01-29
申请号：NO782564
申请日：1978-07-25
Applicant: ERICSSON TELEFON AB L M
Inventor： LUNDBERG BO ESKIL OLAUS , SCUKA VIKTOR
CPC classification number: G02B6/4427 , G02B6/4416 , H01B7/04 , H01B7/12 , H01B7/189
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