专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US3991588A Cryogenic fluid transfer joint employing a stepped bayonet relative-motion gap 失效
标题翻译：采用步进式卡口相对运动间隙的低温流体输送接头
公开(公告)号：US3991588A
公开(公告)日：1976-11-16
申请号：US573169
申请日：1975-04-30
申请人： Evangelos T. Laskaris
发明人： Evangelos T. Laskaris
IPC分类号： F16L59/065 , F16L59/18 , F17C13/00 , H02K55/04 , F17C7/02
CPC分类号： F16L59/185 , F16J15/43 , F16J15/441 , F16L59/065 , H01F6/04 , H02K55/04 , Y02E40/625 , Y10S285/904 , Y10S505/897
摘要： Cryogenic liquid coolant is transferred from a stationary liquefier through a bayonet to a conduit rotating with the rotor of a superconducting generator, using a cryogenic fluid transfer joint attached to the collector end of the rotor. A relative-motion gap about the bayonet has its inner and outer diameters reduced in size near the outlet end of the bayonet. The gap thus stepped downward in size extends into a core of boil-off coolant within the rotating conduit, preventing liquid coolant centrifugally forced against the inside of the conduit from entering the gap, and allowing only boil-off coolant to enter.
摘要翻译：低温液体冷却剂通过连接到转子收集端的低温流体传递接头从静止液化器通过卡口转移到与超导发生器的转子一起旋转的导管。围绕卡口的相对运动间隙的内径和外径在卡口的出口端附近的尺寸减小。因此，尺寸向下延伸的间隙延伸到旋转管道内的蒸发冷却剂芯体中，防止离心力地压迫导管内部的液体冷却剂进入间隙，并且仅允许冷却剂冷却剂进入。

62. 发明授权

US3991333A Winding support structure for superconducting rotor 失效
标题翻译：超导转子绕组支撑结构
公开(公告)号：US3991333A
公开(公告)日：1976-11-09
申请号：US606177
申请日：1975-08-20
申请人： Evangelos T. Laskaris
发明人： Evangelos T. Laskaris
IPC分类号： H02K3/46 , H02K55/04 , H02K9/00
CPC分类号： H02K55/04 , H02K3/46 , Y02E40/625
摘要： Rigid support for the rotor winding of a superconductive A.C. generator is achieved by combining a plurality of modular racetrack-shaped sections to form the winding. Each section is separately supported to withstand the centrifugal forces and load forces on the winding during operation. The windings and support members are machined in close tolerance, and the support member material is selected so that differential thermal contraction during cooldown results in an interference fit and compression at the winding-support interface.
摘要翻译：通过组合多个模块化跑道形截面来形成绕组，实现了对超导交直流发电机的转子绕组的刚性支撑。每个部分分别支撑，以在运行过程中承受绕组上的离心力和负载力。绕组和支撑构件被紧密公差地加工，并且选择支撑构件材料，使得在冷却期间的差别热收缩导致绕组支撑界面处的过盈配合和压缩。

63. 发明授权

US07852079B2 Apparatus for low AC loss thermal shielding and method of making same 有权
标题翻译：低交流损耗热屏蔽装置及其制作方法
公开(公告)号：US07852079B2
公开(公告)日：2010-12-14
申请号：US11461544
申请日：2006-08-01
申请人： Xianrui Huang , Evangelos T. Laskaris , Paul S. Thompson , Bulent Aksel
发明人： Xianrui Huang , Evangelos T. Laskaris , Paul S. Thompson , Bulent Aksel
IPC分类号： G01V3/00 , H01F7/00 , H01F1/00
CPC分类号： G01R33/3815 , G01R33/3804
摘要： A apparatus for low AC loss thermal shielding includes a plurality of thermally conducting fibers positioned along a desired direction of heat conduction. The fibers are electrically insulated from each other. The fibers are bonded together with a matrix, and a thermal link connects the bonded fibers to a cryogenic cold head.
摘要翻译：用于低AC损耗热屏蔽的装置包括沿期望的热传导方向定位的多个导热纤维。纤维彼此电绝缘。纤维与基体结合在一起，并且热连接将结合的纤维连接到低温冷头。

64. 发明授权

US06694602B2 Method of making a pole piece for an MRI 失效
标题翻译：制作磁极片的方法
公开(公告)号：US06694602B2
公开(公告)日：2004-02-24
申请号：US09738856
申请日：2000-12-18
申请人： Evangelos T. Laskaris , William D. Barber , Bulent Aksel , Paul S. Thompson , Michele D. Ogle
发明人： Evangelos T. Laskaris , William D. Barber , Bulent Aksel , Paul S. Thompson , Michele D. Ogle
IPC分类号： H01F706
CPC分类号： H01F7/0278 , G01R33/383 , Y10S29/001 , Y10T29/4902 , Y10T29/49075 , Y10T29/49078
摘要： A method is presented for manufacturing laminate tile metal pole pieces for an MRI. Each laminate tile has a trapezoidal or annular sector shape. The trapezoidal shape allows the tiles to be attached side by side to form a multiple concentric annular array pole piece without using oddly shaped edge filler tiles needed to fill a circular pole piece with square tiles. The pole piece is made by placing a plurality of tiles into a mold and filling the mold with an adhesive substance to bind the plurality of tiles into a unitary tile body. The unitary tile body is then removed from the mold and attached to a pole piece base to form the pole piece. The mold cavity surface preferably has a non-uniform contour. The bottom surface of the unitary tile body forms a substantially inverse contour of the mold cavity surface contour.
摘要翻译：提出了一种用于制造用于MRI的层压瓦片金属极片的方法。每个层压砖具有梯形或环形扇形。梯形形状允许瓦片并排连接以形成多个同心环形阵列极片，而不使用填充具有方形瓦片的圆形极片所需的奇怪形状的边缘填充瓦。极片通过将多个瓦片放置在模具中并用粘合剂物质填充模具来制造，以将多个瓦片粘合成整体瓦片体。然后将单一瓦片体从模具中取出并附接到极片基座以形成极片。模腔表面优选具有不均匀的轮廓。整体瓦片体的底面形成模腔表面轮廓的基本上相反的轮廓。

65. 发明授权

US6150819A Laminate tiles for an MRI system and method and apparatus for manufacturing the laminate tiles 有权
标题翻译：用于MRI系统的层叠瓦片以及用于制造层压瓦片的方法和装置
公开(公告)号：US6150819A
公开(公告)日：2000-11-21
申请号：US198510
申请日：1998-11-24
申请人： Evangelos T. Laskaris , William D. Barber , Bulent Aksel , Richard A. Ranze
发明人： Evangelos T. Laskaris , William D. Barber , Bulent Aksel , Richard A. Ranze
IPC分类号： A61B5/055 , G01R33/383 , H01F7/02 , H01F7/20 , H01F41/02 , G01V3/00
CPC分类号： G01R33/383 , H01F41/0226 , H01F7/0278 , H01F7/20 , Y10T29/49078
摘要： A laminate tile pole piece for an MRI, a method and an apparatus for manufacturing laminate tile metal pole pieces for an MRI. Each laminate tile has a trapezoidal or annular sector shape. The trapezoidal shape allows the tiles to be attached side by side to form a multiple concentric ring pole piece without using oddly shaped edge filler tiles needed to fill a circular pole piece with square tiles. The laminate tiles are formed by unwinding a metal ribbon, guiding the ribbon through an adhesive bath, winding the ribbon on a polygonal bobbin, such as a rectangular bobbin, to form a coil with at least one flat side, removing the coil from the bobbin, cutting the coil into laminate bars and shaping the laminate bars into trapezoidal or annular sector shaped laminate tiles. The apparatus contains an adhesive bath, a polygonal shaped bobbin, bobbin side plates for guiding the ribbon onto the bobbin and pressure plates for controlling the thickness of the coil. The apparatus also contains a cutting tool for cutting the coil into laminate bars after the coil is removed from the bobbin and a water jet to shape the laminate bars into trapezoidal or annular sector shaped laminate tiles.
摘要翻译：用于MRI的叠层瓦片极片，用于制造用于MRI的层压瓦片金属极片的方法和装置。每个层压砖具有梯形或环形扇形。梯形形状允许瓦片并排连接以形成多个同心圆极片，而不使用填充具有方形瓦片的圆形极片所需的奇怪形状的边缘填充瓦。通过展开金属带来形成层压瓦片，通过粘合剂浴引导带状物，将带卷绕在诸如矩形线轴的多边形线轴上以形成具有至少一个平坦侧面的线圈，将线圈从线轴将线圈切割成层压棒，并将层压棒成型为梯形或环形扇形形状的层压瓦片。该装置包括粘合剂浴，多边形线轴，用于将带引导到线轴上的线轴侧板和用于控制线圈厚度的压板。该设备还包括一个切割工具，用于在将线圈从筒管上取下并将水射流成形为梯形或环形扇形层压瓦片之后将线圈切割成层压棒。

66. 发明授权

US5552211A Ceramic superconducting lead resistant to breakage 失效
标题翻译：陶瓷超导导线耐破坏
公开(公告)号：US5552211A
公开(公告)日：1996-09-03
申请号：US440159
申请日：1995-05-12
申请人： Robert A. Ackermann , Kenneth G. Herd , Evangelos T. Laskaris , Richard A. Ranze
发明人： Robert A. Ackermann , Kenneth G. Herd , Evangelos T. Laskaris , Richard A. Ranze
IPC分类号： B32B5/22 , F17C13/00 , F25D19/00 , G01R33/3815 , H01F6/06 , B32B9/00
CPC分类号： B32B5/22 , F25D19/006 , G01R33/3815 , H01F6/04 , H01F6/065 , Y10S428/93 , Y10S505/701 , Y10T428/24917 , Y10T428/249951 , Y10T428/2929 , Y10T428/2958
摘要： A superconductive lead assembly for a superconductive device (e.g., magnet) cooled by a cryocooler coldhead having first and second stages. A first ceramic superconductive lead has a first end flexibly, dielectrically, and thermally connected to the first stage and a second end flexibly, dielectrically, and thermally connected to the second stage. A jacket of open cell material (e.g., polystyrene foam) is in general surrounding compressive contact with the first ceramic superconductive lead, and a rigid support tube generally surrounds the jacket. This protects the first ceramic superconductive lead against shock and vibration while in the device. The rigid support tube has a first end and a second end, with the second end thermally connectable to the second stage.
摘要翻译：一种用于超导装置（例如，磁体）的超导引线组件，其由具有第一和第二级的低温冷却器冷头冷却。第一陶瓷超导引线具有柔性，介电和热连接到第一级的第一端，以及柔性地，介电地且热连接到第二级的第二端。开孔材料（例如，聚苯乙烯泡沫）的夹套通常围绕与第一陶瓷超导导线的压力接触，并且刚性支撑管通常围绕护套。这样可以保护第一个陶瓷超导导线免受器件中的冲击和振动。刚性支撑管具有第一端和第二端，第二端与第二级热连接。

67. 发明授权

US5548168A Superconducting rotor for an electrical machine 失效
标题翻译：电机用超导转子
公开(公告)号：US5548168A
公开(公告)日：1996-08-20
申请号：US267625
申请日：1994-06-29
申请人： Evangelos T. Laskaris , Kenneth G. Herd
发明人： Evangelos T. Laskaris , Kenneth G. Herd
IPC分类号： H02K55/04 , H02K9/00
CPC分类号： H02K55/04 , Y02E40/625
摘要： A superconductive rotor, such as an electric generator rotor, has a cylindrical-shaped solid (e.g., iron) core having a pair of diametrically-opposed and longitudinally-extending slots. A longitudinally-extending, racetrack-shaped superconductive coil surrounds the solid core and has straight portions located in the slots. A longitudinally extending, racetrack-shaped thermal shield generally encloses the superconductive coil and has generally straight portions located in the slots. The thermal shield is generally spaced apart from the superconductive coil and from the solid core. A pair of end shafts are each attached to the solid core and are spaced apart from the thermal shield. One end shaft has a cryogen transfer coupling for cooling the superconductive coil, preferably with gaseous helium.
摘要翻译：超导转子，例如发电机转子，具有圆柱形固体（例如，铁）芯，其具有一对沿直径相对且纵向延伸的槽。纵向延伸的跑道形超导线圈包围实芯，并且具有位于槽中的直线部分。纵向延伸的跑道形热屏蔽罩通常包围超导线圈并且具有位于槽中的大致直的部分。热屏蔽通常与超导线圈和实心芯间隔开。一对端轴各自连接到实芯，并与隔热板间隔开。一端轴具有用于冷却超导线圈的冷冻剂转移耦合，优选地具有气态氦。

68. 发明授权

US5539366A Magnet having contoured pole faces for magnetic field homogeneity 失效
标题翻译：具有磁场均匀性的磁极形状的磁体
公开(公告)号：US5539366A
公开(公告)日：1996-07-23
申请号：US281044
申请日：1994-07-27
申请人： Bizhan Dorri , Evangelos T. Laskaris , Michele D. Ogle , Bu-Xin Xu
发明人： Bizhan Dorri , Evangelos T. Laskaris , Michele D. Ogle , Bu-Xin Xu
IPC分类号： G01R33/38 , G01R33/3815 , H01F6/00 , H01F3/00 , G01V3/00
CPC分类号： G01R33/3806 , G01R33/3815 , H01F6/00
摘要： A magnet including spaced-apart first and second pole pieces with generally opposing first and second pole faces. The first pole face has an axis extending generally towards the second pole face and has a surface region which includes at least two frustoconical surfaces. The frustoconical surfaces are generally coaxially aligned about the axis, and radially-adjacent frustoconical surfaces abut each other. In a second embodiment, points on the surface region located an identical radial distance from the axis are also located a common axial distance along the axis, and a graph of axial distance along the axis versus radial distance from the axis for such points is a curve having a continuous slope with at least two sign reversals. Such contoured pole faces allow for a smoother magnetic field to better reduce axisymmetric magnetic field inhomogeneity.
摘要翻译：磁体包括间隔开的第一和第二极片，其具有大致相对的第一和第二极面。第一极面具有大致朝向第二极面延伸的轴线，并且具有包括至少两个截头圆锥形表面的表面区域。截头圆锥形表面通常围绕轴线同轴对准，并且径向相邻的截头圆锥形表面彼此邻接。在第二实施例中，位于与轴相同的径向距离的表面区域上的点也沿着轴线定位共同的轴向距离，并且沿轴线的轴向距离与该轴线相对于径向距离的曲线图是曲线具有至少两个符号反转的连续斜率。这种轮廓极面允许更平滑的磁场更好地减少轴对称磁场不均匀性。

69. 发明授权

US5532663A Support structure for a superconducting coil 失效
标题翻译：超导线圈的支撑结构
公开(公告)号：US5532663A
公开(公告)日：1996-07-02
申请号：US402439
申请日：1995-03-13
申请人： Kenneth G. Herd , Evangelos T. Laskaris
发明人： Kenneth G. Herd , Evangelos T. Laskaris
IPC分类号： H01F6/00 , H02K55/04 , H02K55/00 , H01F7/00 , H02K9/00
CPC分类号： H01F6/00 , H02K55/04 , Y02E40/625 , Y10S505/877 , Y10S505/878 , Y10S505/879 , Y10S505/888
摘要： A superconducting device, such as a superconducting rotor for a generator or motor or a superconducting magnet for a magnetic resonance imaging machine, etc. A vacuum enclosure surrounds and is spaced apart from a superconductive coil. Apparatus supports the coil in the enclosure during operation of the device, such apparatus including a first thermally insulative honeycomb assemblage positioned between the coil and the enclosure. In a first preferred construction, the first honeycomb assemblage is positioned between and connected to the coil and a thermal shield, and a second honeycomb assemblage is positioned between and connected to the shield and the enclosure. In a second preferred construction, the second honeycomb assemblage is replaced with a first suspension strap.
摘要翻译：超导装置，例如用于发电机或电动机的超导转子或用于磁共振成像机的超导磁体等。真空外壳围绕并与超导线圈隔开。装置在设备操作期间将线圈支撑在外壳中，这种装置包括位于线圈和外壳之间的第一绝热蜂窝组件。在第一优选结构中，第一蜂窝组件位于线圈之间并连接到线圈和热屏蔽件上，并且第二蜂巢组件位于屏蔽件和外壳之间并连接到屏蔽件和外壳上。在第二优选结构中，第二蜂窝组件被替换为第一悬挂带。

70. 发明授权

US5448214A Open MRI magnet with superconductive shielding 失效
标题翻译：开放MRI超磁屏蔽磁铁
公开(公告)号：US5448214A
公开(公告)日：1995-09-05
申请号：US260433
申请日：1994-06-15
申请人： Evangelos T. Laskaris
发明人： Evangelos T. Laskaris
IPC分类号： A61B5/055 , G01R33/38 , G01R33/3815 , G01R33/421 , H01F6/00 , H01F7/20
CPC分类号： G01R33/421 , G01R33/3806 , G01R33/3815
摘要： An open magnetic resonance imaging (MRI) magnet having two generally toroidal-shaped superconductive coil assemblies spaced apart by generally spaced-apart and generally parallel inter-coil-assembly posts. Each coil assembly has associated with it a generally annular-shaped superconductive shielding assembly and at least two spaced-apart assembly posts each having one end attached to the coil assembly and another end attached to the shielding assembly The shielding coil within the shielding assembly has an inner diameter greater than the outer diameter of the main coil within the coil assembly. A cryocooler coldhead cools the entire magnet. Magnetic shielding is achieved while maintaining the openness of the open magnet.
摘要翻译：具有两个通常为环形形状的超导线圈组件的开放式磁共振成像（MRI）磁体，其通过大致间隔开且大致平行的线圈间组件柱间隔开。每个线圈组件与其相关联地具有大致环形的超导屏蔽组件和至少两个间隔开的组件柱，每个组件柱的一端连接到线圈组件，另一端连接到屏蔽组件屏蔽组件内的屏蔽线圈具有内径大于线圈组件内的主线圈的外径。一个低温冷却器冷锋冷却整个磁铁。在保持开放磁体的开放性的同时实现磁屏蔽。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式