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公开(公告)号：US07488892B2
公开(公告)日：2009-02-10
申请号：US10518468
申请日：2003-06-05
申请人： Sergio Belli , Fabrizio Donazzi , Alberto Bareggi , Cesare Bisleri , Carlo Marin
发明人： Sergio Belli , Fabrizio Donazzi , Alberto Bareggi , Cesare Bisleri , Carlo Marin
IPC分类号： H01B9/02
摘要： A cable for use in a predetermined voltage class, has a conductor; an insulating layer surrounding the conductor, the insulating layer having a thickness selected to provide a predetermined electrical stress when the cable is operated at a nominal voltage in said predetermined voltage class; and a protective element around the conductor having a thickness and mechanical properties selected to provide a predetermined impact resistance capability, the protective element having at least one expanded polymeric layer. The insulating layer thickness and the protective element thickness are selected in combination to minimize the overall cable weight while preventing a detectable insulating layer damage upon impact of 50 J energy. A method for designing a cable is also disclosed.
摘要翻译： 用于预定电压等级的电缆具有导体; 围绕所述导体的绝缘层，所述绝缘层的厚度被选择为当所述电缆在所述预定电压等级中的标称电压下操作时提供预定的电应力; 以及围绕导体的保护元件，其具有被选择用于提供预定抗冲击性能的厚度和机械性能，所述保护元件具有至少一个发泡聚合物层。 选择绝缘层厚度和保护元件厚度，以最大限度地减少总体电缆重量，同时防止在50J能量冲击时可检测的绝缘层损坏。 还公开了一种用于设计电缆的方法。
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2.发明授权
公开(公告)号：US4803309A
公开(公告)日：1989-02-07
申请号：US18592
申请日：1987-02-25
申请人： Carlo Marin , Cesare Seveso
发明人： Carlo Marin , Cesare Seveso
摘要： An electrical cable with a core comprising an electrical conductor surrounded by insulation and with both a screen of wires in open helix configuration on the core and at least one other wire extending longitudinally of the core and electrically contacting the wires of the screen. An insulating sheath surrounds the screen and may itself embed the wires or it may surround a layer of extruded material which at least partially embeds the wires. The material of the layer may be insulating or semi-conductive. Also, a process for manufacturing such cable.
摘要翻译： 一种具有芯的电缆，包括由绝缘体包围的电导体，并且具有在芯上的开放螺旋结构的电线屏幕和至少一个另外的电线，该电缆沿芯线纵向延伸并电接触屏幕的电线。 绝缘护套围绕屏幕并且本身可以嵌入电线，或者它可以围绕至少部分地嵌入电线的挤出材料层。 该层的材料可以是绝缘的或半导体的。 而且，制造这种电缆的方法。
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公开(公告)号：US4698009A
公开(公告)日：1987-10-06
申请号：US864039
申请日：1986-05-16
摘要： A granulator for forming granules of cross-linkable plastic compounds in which a screw extruder extrudes the compound into the smaller diameter end of a funnel-shaped, annular conduit, the other end of the conduit facing a die with circular arrays of through-holes. The compound which passes through the through-holes is cut into granules by rotating blades having air nozzles which remove particles of the compound from the blades. The granules are received in a chamber from which they are removed pneumatically. Where the annular conduit meets the die, there are channels within and outside of the arrays of through-holes which lead to the outside of the granulator and which provide conduits for removal of compound which does not directly impinge on the entrances of the through-holes which are specially shaped to avoid accumulation of the compound between the through-holes.
摘要翻译： 一种用于形成可交联塑料化合物颗粒的造粒机，其中螺杆挤出机将化合物挤出到漏斗形环形导管的较小直径端，导管的另一端面对具有圆形阵列通孔的模具。 穿过通孔的化合物通过旋转具有从叶片除去化合物颗粒的空气喷嘴的叶片切成颗粒。 将颗粒接收在气室中从中除去的室中。 在环形导管与模具相接触的地方，在通孔阵列内和外部有通向造粒机外部的通道，其通道用于去除不直接撞击通孔入口的化合物 其特别地成形为避免化合物在通孔之间的积聚。
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4.发明授权Multi-layer power cable with metal sheath free to move relative to adjacent layers 失效带有金属护套的多层电力电缆可以相对于相邻的层自由移动
公开(公告)号：US5281757A
公开(公告)日：1994-01-25
申请号：US936354
申请日：1992-08-25
摘要： An electrical power cable with a stranded conductor, a semi-conductive stress control layer around the conductor, a layer of insulation around the stress control layer, a semi-conductive insulation shield layer around the layer of insulation, an imperforate metal strip with overlapping edge portions around the shield layer and a polymeric jacket around the metal strip. The strip is free to move with respect to the jacket and the shield layer with expansion and contraction of the cable elements with temperature changes, and the overlapping edge portions of the strip are bonded together by an adhesive which permits the edge portions to move relative to each other with such temperature changes without creating fluid passageways between the edge portions. A cushioning layer can be between the shield layer and the strip and preferably, the cable is water sealed.
摘要翻译： 具有绞合导体的电力电缆，导体周围的半导体应力控制层，应力控制层周围的绝缘层，绝缘层周围的半导体绝缘屏蔽层，具有重叠边缘的无孔金属带 屏蔽层周围的部分和围绕金属条的聚合物护套。 带子相对于护套和屏蔽层自由地移动，随着温度变化，电缆元件的膨胀和收缩，并且条带的重叠边缘部分通过粘合剂粘合在一起，该粘合剂允许边缘部分相对于 彼此具有这样的温度变化，而不会在边缘部分之间产生流体通道。 缓冲层可以在屏蔽层和带之间，并且优选地，电缆是水密封的。
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5.再颁专利Multi-layer power cable with metal sheath free to move relative to adjacent layers 失效带有金属护套的多层电力电缆可以相对于相邻的层自由移动
公开(公告)号：USRE36307E
公开(公告)日：1999-09-21
申请号：US522979
申请日：1995-09-01
摘要： An electrical power cable with a stranded conductor, a semi-conductive stress control layer around the conductor, a layer of insulation around the stress control layer, a semi-conductive insulation shield laser around the layer of insulation, an imperforate metal strip with overlapping edge portions around the shield layer and a polymeric jacket around the metal strip. The strip is free to move with respect to the jacket and the shield layer with expansion and contraction of the cable elements with temperature changes, and the overlapping edge portions of the strip are bonded together by an adhesive which permits the edge portions to move relative to each other with such temperature changes without creating fluid passageways between the edge portions. A cushioning layer can be between the shield layer and the strip and preferably, the cable is water sealed.
摘要翻译： 具有绞合导体的电力电缆，导体周围的半导体应力控制层，应力控制层周围的绝缘层，围绕绝缘层的半导体绝缘屏蔽激光器，具有重叠边缘的无孔金属带 屏蔽层周围的部分和围绕金属条的聚合物护套。 带子相对于护套和屏蔽层自由地移动，随着温度变化，电缆元件的膨胀和收缩，并且条带的重叠边缘部分通过粘合剂粘合在一起，该粘合剂允许边缘部分相对于 彼此具有这样的温度变化，而不会在边缘部分之间产生流体通道。 缓冲层可以在屏蔽层和带之间，并且优选地，电缆是水密封的。
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6.发明授权Power cable with water swellable agents and elongated metal elements outside cable insulation 失效电力电缆与水溶胀剂和细长金属元素外部电缆绝缘
公开(公告)号：US5010209A
公开(公告)日：1991-04-23
申请号：US404320
申请日：1989-09-07
CPC分类号： H01B7/2813 , H01B7/288 , H01B9/02
摘要： A high voltage electrical power cable with a stranded central conductor encircled by insulation, a metal tape, metal strips or metal wires following helical paths outwardly of the insulation and a water swellable material at least between the adjacent edges of the tape, strips or wires. Preferably, the water swellable material is included with a polymeric material which is flowable at a temperature at least as low as 100.degree. C., the polymeric material has a 100 gram needle penetration value in the range from 50-100 tenths of a millimeter at 25.degree. C. and the water swellable material has a particle size not greater than 200 microns.
摘要翻译： 一种高压电力电缆，其具有由绝缘体包围的绞合中心导体，金属带，金属带或金属线，其沿着绝缘体外部的螺旋形路径和至少在带，条或电线的相邻边缘之间的水可溶胀材料。 优选地，水可溶胀材料包括在至少低至100℃的温度下可流动的聚合物材料，聚合物材料具有在50至十分之几毫米范围内的100克针穿透值 25℃，水可溶胀材料的粒径不大于200微米。
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公开(公告)号：US11504209B2
公开(公告)日：2022-11-22
申请号：US16322286
申请日：2017-08-03
申请人： Carlo Marin
发明人： Carlo Marin
摘要： The present invention relates to a centering and guiding device (1) for a dental drill which comprises a body (10) including a guiding hole (15) for a dental drill and two arms (20, 30) pivotally coupled to the body (10). Each arm includes a respective free end (22, 32). Said arms (20,30) are capable of pivoting between a first open position, in which said respective free ends (22, 32) are mutually spaced apart to promote the movement of the device (1) from and towards an operating surface, and a second closed position, in which the free ends (22, 32) are approached to each other to match an operating surface. The device according to the invention also comprises an elastic element (40) to push the arms (20, 30) towards the closed position. According to the invention, each of said arms (20, 30) comprises a cylindrical end (27, 37), opposite to the corresponding free end (22, 32), accommodated in a corresponding seat (10A) defined by the body (10). Moreover, the cylindrical ends (27, 37) of said arms (20, 30) comprise respective toothed sectors (25, 35) mutually meshing each other to guide the rotation of said arms (20, 30) between said closed and open positions.
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公开(公告)号：US5182066A
公开(公告)日：1993-01-26
申请号：US800645
申请日：1991-11-27
申请人： Carlo Marin
发明人： Carlo Marin
CPC分类号： B29C47/1063 , B29C47/0016 , B29C47/364 , B29C47/367 , B29C47/38 , B29C47/687 , B29K2105/0005 , B29K2995/0007 , B29L2031/3462
摘要： Method and apparatus for applying a layer of insulation around an electrical cable core in which the contaminant size is not greater than about 200 microns. Unplasticized insulation material, such as polyethylene, is supplied to an extruder which forces the material through a filter which prevents the passage of contaminants having a size greater than about 200 microns and in which there is a pressure drop. The filtered material is delivered to a pump which increases the pressure thereon and forces it through a static mixer at the output of which the filtered material is delivered to the cross-head of extrusion apparatus which applies the filtered material to the cable core as it is advanced longitudinally. If the insulating material is to be cross-linked by a cross-linking agent, the agent is injected into the filtered material between the pump and the mixer.
摘要翻译： 在电缆芯线周围施加绝缘层的方法和装置，其中污染物尺寸不大于约200微米。 将未增塑的绝缘材料（例如聚乙烯）供应到挤出机中，该挤出机迫使材料通过过滤器，该过滤器防止尺寸大于约200微米的污染物的通过并且存在压降。 过滤的材料被输送到泵，其增加其上的压力并迫使其通过静态混合器，其输出处将过滤的材料输送到挤出设备的十字头，其将过滤的材料施加到电缆芯，因为它是 纵向前进。 如果绝缘材料要被交联剂交联，则将试剂注入泵和混合器之间的过滤材料中。
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9.发明授权Electric cable with stranded conductor filled with water blocking compound and with extruded insulation 失效带有绞合导体的电缆填充防水化合物并具有挤压绝缘
公开(公告)号：US4791240A
公开(公告)日：1988-12-13
申请号：US37603
申请日：1987-04-13
申请人： Carlo Marin , Giovanni Pozzati
发明人： Carlo Marin , Giovanni Pozzati
IPC分类号： H01B7/282 , C08K3/04 , C08K5/14 , C08K5/1515 , C08L1/08 , C08L23/08 , H01B3/44 , H01B7/288 , H01B13/30 , H01B13/32 , H01B9/02
CPC分类号： H01B13/327 , H01B3/441 , H01B7/288 , C08K3/04 , C08K5/14 , C08K5/1515 , C08L1/08 , C08L2203/202 , C08L23/0853 , C08L2312/00
摘要： A filler compound for the spaces between the wires of a stranded conductor surrounded by and contacting a semiconductive layer which is surrounded by a layer of extrudced insulation, a method for filling such spaces with the compounds and an electric cable including such compound. The compound has a polymeric base, a Mooney viscosity at 100.degree. C. between 10 and 60 and a Shore A hardness between 10 and 90. Preferably, the compound includes hygroexpansible, water insoluble organic powder having particle sizes less than 200 microns and specified other characteristics.
摘要翻译： 用于由被挤出绝缘层包围的半导体层包围和接触的绞合导体的线之间的空间的填充化合物，用化合物填充这种空间的方法和包括这种化合物的电缆。 该化合物具有聚合物基质，在100℃下在10至60之间的门尼粘度和10至90℃之间的肖氏A硬度。优选地，该化合物包括粒径小于200微米的可湿膨胀，水不溶性有机粉末和指定的其它 特点
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