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81. 发明授权

US07345559B2 High field open MRI magnet isolation system and method 有权
标题翻译：高磁场开放磁共振磁体隔离系统及方法
公开(公告)号：US07345559B2
公开(公告)日：2008-03-18
申请号：US09682519
申请日：2001-09-13
申请人： Yu Wang , Evangelos Trifon Laskaris , Richard Andrew Ranze
发明人： Yu Wang , Evangelos Trifon Laskaris , Richard Andrew Ranze
IPC分类号： H01F6/00
CPC分类号： G01R33/389 , G01R33/3802 , G01R33/3806
摘要： A vertically-aligned open MRI magnet system includes first and second (i.e., top and bottom) assemblies each having a longitudinally-extending and vertically-aligned axis, a superconductive main coil, and a vacuum enclosure enclosing the main coil. At least one support beam has a first end attached to the first assembly and has a second end attached to the second assembly. A vibration isolation system supports the magnet system.
摘要翻译：垂直对准的开放MRI磁体系统包括第一和第二（即，顶部和底部）组件，每个组件具有纵向延伸和垂直对准的轴线，超导主线圈和围绕主线圈的真空外壳。至少一个支撑梁具有连接到第一组件的第一端，并且具有连接到第二组件的第二端。振动隔离系统支持磁体系统。

82. 发明授权

US07053740B1 Low field loss cold mass structure for superconducting magnets 有权
标题翻译：超导磁体的低场损耗冷质量结构
公开(公告)号：US07053740B1
公开(公告)日：2006-05-30
申请号：US11182622
申请日：2005-07-15
申请人： Evangelos Trifon Laskaris , Xianrui Huang , Paul St. Mark Shadforth Thompson
发明人： Evangelos Trifon Laskaris , Xianrui Huang , Paul St. Mark Shadforth Thompson
IPC分类号： H01F6/00
CPC分类号： H01F6/04 , G01R33/3815 , H01F5/04 , H01F6/00 , H01F27/22 , H01F27/2876
摘要： A structure for superconducting magnets is provided. The structure includes a thermally conductive electrically resistive composite bobbin, a superconducting coil disposed around the thermally conductive electrically resistive composite bobbin for conducting current in a superconductive state. The structure also includes an electrically open cryogenic coil disposed on the thermally conductive composite electrically resistive bobbin, which can receive a flow of cryogenic fluid to maintain the superconducting coil in the superconductive state by transfer of heat from the superconducting coil to the electrically open cryogenic coil through the thermally conductive electrically resistive composite bobbin.
摘要翻译：提供了一种用于超导磁体的结构。该结构包括导热电阻复合线圈架，设置在导热电阻复合绕线架周围的超导线圈，用于传导超导状态的电流。该结构还包括设置在导热复合电阻筒管上的电开式低温线圈，其可以接收低温流体的流动，以通过将热量从超导线圈传递到电开式低温线圈来将超导线圈保持在超导状态通过导热电阻复合线轴。

83. 发明授权

US07023309B2 Permanent magnet assembly and method of making thereof 失效
公开(公告)号：US07023309B2
公开(公告)日：2006-04-04
申请号：US10309139
申请日：2002-12-04
申请人： Evangelos Trifon Laskaris , Michael Anthony Palmo , Kathleen Melanie Amm , Paul Shadforth Thompson
发明人： Evangelos Trifon Laskaris , Michael Anthony Palmo , Kathleen Melanie Amm , Paul Shadforth Thompson
IPC分类号： H01F7/02
CPC分类号： H01F41/0253 , H01F13/003
摘要： An imaging apparatus, such as an MRI system, contains at least one layer of soft magnetic material between the yoke and each permanent magnet. This imaging apparatus may be operated without pole pieces due to the presence of the soft magnetic material. The permanent magnets may be fabricated by magnetizing unmagnetized alloy bodies after the unmagnetized alloy bodies have been attached to the yoke.

84. 发明授权

US06590305B2 High temperature super-conducting synchronous rotor having an electromagnetic shield and method for assembly 失效
公开(公告)号：US06590305B2
公开(公告)日：2003-07-08
申请号：US09854938
申请日：2001-05-15
申请人： Yu Wang , Robert John Nygard , Evangelos Trifon Laskaris , John Arthur Urbahn
发明人： Yu Wang , Robert John Nygard , Evangelos Trifon Laskaris , John Arthur Urbahn
IPC分类号： H02K900
CPC分类号： H02K55/04 , Y02E40/625
摘要： A rotor is disclosed for a synchronous machine comprising: a rotor core; a super-conducting coil winding extending around at least a portion of the rotor core, the coil winding having a pair of side sections on opposite sides of the rotor core; and a conductive shield around the rotor core and covering the coil winding.

85. 发明授权

US06577028B2 High temperature superconducting rotor power leads 有权
公开(公告)号：US06577028B2
公开(公告)日：2003-06-10
申请号：US09855034
申请日：2001-05-15
申请人： Evangelos Trifon Laskaris , James Pellegrino Alexander
发明人： Evangelos Trifon Laskaris , James Pellegrino Alexander
IPC分类号： H02K132
CPC分类号： H02K55/04 , H01F6/065 , Y02E40/625
摘要： The resistive power leads of a high temperature superconducting (HTS) rotor field coil are located in vacuum near the rotor axis and are cooled by thermal conduction to the return flow path by bonding the leads to the tubing bulkhead through ceramic insulators. The lead length, cross-section and electrical resistivity are optimized for minimum heat conduction and ohmic resistance heat transfer to the cold gas. Thermal expansion or contraction of the leads is accommodated by flexible sections at the warm and cold end of the leads.

86. 发明授权

US06525634B2 Permanent magnet assembly and method of making thereof 失效
公开(公告)号：US06525634B2
公开(公告)日：2003-02-25
申请号：US10157965
申请日：2002-05-31
申请人： Evangelos Trifon Laskaris , Michael Anthony Palmo , Kathleen Melanie Amm , Paul Shadforth Thompson
发明人： Evangelos Trifon Laskaris , Michael Anthony Palmo , Kathleen Melanie Amm , Paul Shadforth Thompson
IPC分类号： H01F100
CPC分类号： H01F41/0253 , H01F13/003
摘要： An imaging apparatus, such as an MRI system, contains at least one layer of soft magnetic material between the yoke and each permanent magnet. This imaging apparatus may be operated without pole pieces due to the presence of the soft magnetic material. The permanent magnets may be fabricated by magnetizing unmagnetized alloy bodies after the unmagnetized alloy bodies have been attached to the yoke.

87. 发明授权

US06396376B1 Apparatus and method for a superconductive magnet with pole piece 失效
标题翻译：具有极片的超导磁体的装置和方法
公开(公告)号：US06396376B1
公开(公告)日：2002-05-28
申请号：US09716127
申请日：2000-11-17
申请人： Evangelos Trifon Laskaris , Michael Anthony Palmo
发明人： Evangelos Trifon Laskaris , Michael Anthony Palmo
IPC分类号： H01F500
CPC分类号： H01F6/00 , G01R33/3806 , G01R33/3815 , Y10S505/892
摘要： A magnet, such as an open magnetic-resonance-imaging (MRI) magnet) has a first assembly including a superconductive main coil and a magnetizable pole piece which, during magnet operation, has a temperature equal to generally the temperature of the main coil. In one example, a cryogenic-fluid (e.g., liquid helium) dewar encloses the main coil, and the dewar has an interior surface defined in part by a surface portion of the pole piece. A method for providing a homogeneous imaging volume for a magnet includes steps to construct the above-described magnet.
摘要翻译：诸如开放式磁共振成像（MRI）磁体的磁体具有包括超导主线圈和可磁化极片的第一组件，其在磁铁操作期间具有等于主线圈温度的温度。在一个实例中，低温流体（例如液氦）杜瓦包围主线圈，并且杜瓦具有部分由极片的表面部分限定的内表面。提供用于磁体的均匀成像体积的方法包括构造上述磁体的步骤。

88. 发明授权

US06358583B1 Laminated composite shell assembly with joint bonds 失效
标题翻译：层压复合外壳组件，具有接合键
公开(公告)号：US06358583B1
公开(公告)日：2002-03-19
申请号：US09196424
申请日：1998-11-19
申请人： Somanath Nagendra , Evangelos Trifon Laskaris , Xianrui Huang
发明人： Somanath Nagendra , Evangelos Trifon Laskaris , Xianrui Huang
IPC分类号： H01F722
CPC分类号： G01R33/3815 , H01F6/00 , Y10T428/1369 , Y10T428/1372 , Y10T428/1393
摘要： A laminated composite shell assembly includes composite shells assembled together and having joint bonds connecting the assembly with an external structure and pinch rings assembled to the shells adjacent the joint bonds so as to reinforce the same. The composite shells and pinch rings are cylindrical in configuration and made of layers of graphite-epoxy material having fibers oriented in desired stacking sequences. The shells and pinch rings are concentrically assembled in a desired sequence with some of the shells being adapted to perform a structural load bearing function while others of the shells are adapted to perform a load transfer function and with the pinch rings adapted to perform additional stiffening as well as load redistributing and transfer functions in the regions of the joint bonds between the assembled shells and the external structure.
摘要翻译：层压复合壳体组件包括组装在一起并具有将组件与外部结构连接的接合接合的复合壳体，以及组装到邻近接合接合处的壳体的夹紧环，以便加强它们。复合壳和夹紧环是圆柱形的，由具有以期望的堆叠顺序取向的纤维的石墨 - 环氧树脂材料层制成。壳体和夹紧环以期望的顺序同心组装，其中一些壳体适于执行结构承载功能，而其他壳体适于执行载荷传递功能，并且夹紧环适于执行额外的加强作为以及在组装的壳和外部结构之间的接合部分的区域中的负载重新分配和传递函数。

89. 发明授权

US06246308B1 Superconductive magnet including a cryocooler coldhead 失效
标题翻译：超导磁体包括一个低温冷却器
公开(公告)号：US06246308B1
公开(公告)日：2001-06-12
申请号：US09716060
申请日：2000-11-20
申请人： Evangelos Trifon Laskaris , Paul Shadforth Thompson , Yu Wang
发明人： Evangelos Trifon Laskaris , Paul Shadforth Thompson , Yu Wang
IPC分类号： H01F600
CPC分类号： F17C3/085 , F17C2203/0391 , F17C2203/0629 , F17C2223/0161 , F17C2227/0353 , F17C2260/036 , F25B2400/17 , F25D19/006 , G01R33/3815 , H01F6/04 , Y10S505/893 , Y10S505/894
摘要： A magnet, such as an open or closed magnet, has a first assembly with at least one superconductive main coil and with a first vacuum enclosure enclosing the main coil(s). A first cryocooler coldhead has a rigid first housing and is generally vertically aligned. A first flexible bellows is vertically aligned, has a first end attached to the first housing of the first cryocooler coldhead and has a second end attached to the first vacuum enclosure of the first assembly.
摘要翻译：磁体，例如开放或封闭的磁体，具有第一组件，其具有至少一个超导主线圈，以及包围主线圈的第一真空外壳。第一个低温冷却器冷头具有刚性的第一壳体并且通常垂直对准。第一柔性波纹管垂直对准，其第一端附接到第一低温冷却器冷头的第一壳体，并且具有连接到第一组件的第一真空外壳的第二端。

90. 发明授权

US06218923B1 Magnet having shielding 有权
标题翻译：磁铁有屏蔽
公开(公告)号：US06218923B1
公开(公告)日：2001-04-17
申请号：US09419236
申请日：1999-10-15
申请人： Evangelos Trifon Laskaris , Michael Anthony Palmo , Michele Dollar Ogle
发明人： Evangelos Trifon Laskaris , Michael Anthony Palmo , Michele Dollar Ogle
IPC分类号： H01F500
CPC分类号： G01R33/3873 , G01R33/3815 , G01R33/421
摘要： A magnet, such as a closed, superconductive, magnetic-resonance-imaging (MRI) magnet, includes a main coil and includes a shielding coil positioned radially outward from the main coil. A magnetizable member is positioned radially outward from the main coil and radially inward from the shielding coil to supplement the strength, and increase the homogeneity of, the magnetic field created, at least in part, by the main coil and to supplement the shielding provided, at least in part, by the shielding coil.
摘要翻译：诸如封闭的超导磁共振成像（MRI）磁体的磁体包括主线圈并且包括从主线圈径向向外定位的屏蔽线圈。可磁化构件从主线圈径向向外定位并且从屏蔽线圈径向向内设置以补充强度，并且增加至少部分由主线圈产生的磁场的均匀性，并补充所提供的屏蔽，至少部分地由屏蔽线圈。

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