公开(公告)号：US06289681B1

公开(公告)日：2001-09-18

申请号：US09441897

申请日：1999-11-17

申请人： Phillip William Eckels ,  Richard Thomas Hackett ,  Gregory F. Hayworth ,  Xianrui Huang ,  Clifford J. Ginfrida ,  Gregory Alan Lehmann ,  John Scaturro, Jr. ,  Bu-Xin Xu

发明人： Phillip William Eckels ,  Richard Thomas Hackett ,  Gregory F. Hayworth ,  Xianrui Huang ,  Clifford J. Ginfrida ,  Gregory Alan Lehmann ,  John Scaturro, Jr. ,  Bu-Xin Xu

IPC分类号： F17C502

CPC分类号： F17C3/085 ,  F17C2265/033 ,  F17C2270/0509 ,  G01R33/3802 ,  G01R33/3804 ,  G01R33/3806 ,  H01F6/04

摘要： A multi purpose interconnect assembly between upper and lower helium vessels in a recondensing superconducting magnet to provide isothermal connections to extend the ride-through period, and to provide for helium liquid and gas passage, electrical interconnections, and to accommodate differential thermal contraction and expansion.

摘要翻译： 在再冷凝超导磁体中的上和下氦容器之间的多用途互连组件，以提供等温连接以延长穿越周期，并提供氦气和气体通道，电互连，并适应不同的热收缩和膨胀。

公开(公告)号：US06807812B2

公开(公告)日：2004-10-26

申请号：US10391872

申请日：2003-03-19

申请人： Gregory A. Lehmann ,  Roy A. Mangano ,  Clifford J. Ginfrida ,  Kathleen W. McGuinness

发明人： Gregory A. Lehmann ,  Roy A. Mangano ,  Clifford J. Ginfrida ,  Kathleen W. McGuinness

IPC分类号： F17C502

CPC分类号： F25D19/006 ,  F25B9/10 ,  F25B9/145 ,  F25B2400/17 ,  G01R33/3815

摘要： A magnetic resonance assembly comprising, a liquid cryogen vessel, a liquid cryogen cooled conducting magnet disposed within the liquid cryogen vessel, a closed vaccum vessel surrounding the liquid cryogen vessel and spaced from the liquid cryogen vessel, a cooling device fixably attached to the vacuum vessel operable for providing cryogenic temperatures to the superconducting magnet, a heat exchanger device in thermal contact with the liquid cryogen vessel operable for heat exchange, and a bus bar in thermal contact with the cooling device and the heat exchanger device. The cooling device may be a pulse tube cryocooler capable of providing temperatures of about 4 K. A thermal bus bar of high purity aluminum or copper is used to connect and provide a spatial separation of a pulse tube cryocooler and a remote recondenser unit, thus reducing the overall height of the magnet assembly.

摘要翻译： 一种磁共振组件，包括液体冷冻剂容器，设置在液体冷冻剂容器内的液体冷冻剂冷却的导电磁体，围绕液体冷冻剂容器并与液体冷冻剂容器间隔开的封闭真空容器，可固定地连接到真空容器的冷却装置 可操作以向超导磁体提供低温温度;与可操作用于热交换的液体冷冻剂容器热接触的热交换器装置，以及与冷却装置和热交换器装置热接触的汇流条。 冷却装置可以是能够提供约4K的温度的脉冲管低温冷却器。使用高纯度铝或铜的热母线连接并提供脉冲管低温冷却器和远程再冷凝器单元的空间分离，从而减少 磁体组件的整体高度。

公开(公告)号：US5864273A

公开(公告)日：1999-01-26

申请号：US814909

申请日：1997-03-12

申请人： David E. Dean ,  Clifford J. Ginfrida ,  Scott Thomas Mansell ,  Thomas M. Nixon ,  Dewain A. Purgill ,  Michael James Radziun

发明人： David E. Dean ,  Clifford J. Ginfrida ,  Scott Thomas Mansell ,  Thomas M. Nixon ,  Dewain A. Purgill ,  Michael James Radziun

IPC分类号： A61B5/055 ,  F17C13/00 ,  F25D19/00 ,  G01R33/3815 ,  H01F6/00 ,  H01F6/04 ,  H01F1/00

CPC分类号： F25D19/006 ,  G01R33/3815 ,  H01F6/04 ,  Y10S505/892

摘要： Vibration and noise isolation for a magnetic resonance imager (MRI) superconducting magnet cryocooler includes a bellows between the cryocooler and its vacuum sleeve in the magnet, a mass suspended along the axis of, but at a distance from, the cryocooler, elastomeric blocks parallel to the axis, and braided copper wires connecting the vacuum sleeve and the heat shields of the MRI. Motion limiters and bellows flexures are provided for dynamic loads which might be encountered during transport of the magnet.

摘要翻译： 用于磁共振成像器（MRI）超导磁体制冷机的振动和噪声隔离包括在低温冷却器和磁体中的真空套筒之间的波纹管，沿着低温冷却器的轴线但距离冷却器一定距离的质量块，平行于 轴线和连接真空套管和MRI屏蔽层的编织铜线。 运动限制器和波纹管弯曲件用于在磁体运输过程中可能遇到的动态载荷。

公开(公告)号：US5317879A

公开(公告)日：1994-06-07

申请号：US967312

申请日：1992-10-28

申请人： Charles Goldberg ,  Steven D. Schnurer ,  John Scaturro, Jr. ,  Kemakolam M. Obasih ,  Clifford J. Ginfrida, Jr.

发明人： Charles Goldberg ,  Steven D. Schnurer ,  John Scaturro, Jr. ,  Kemakolam M. Obasih ,  Clifford J. Ginfrida, Jr.

IPC分类号： H01F7/20 ,  F17C13/00 ,  F25D19/00 ,  G01R33/3815 ,  H01F6/04 ,  F25B19/00

CPC分类号： F25D19/006 ,  G01R33/3815 ,  H01F6/04 ,  Y10S505/888

摘要： A flexible heat transfer assembly between a cryogenic refrigerator cold head sleeve and magnetic resonance imager thermal shields includes a plurality of rope-lay stranded copper ropes, each containing a large number of section.

摘要翻译： 低温冰箱冷头套筒和磁共振成像器热屏蔽之间的柔性热传递组件包括多个绞索绞合的铜绳，每个包含大量的截面。

公开(公告)号：US5117640A

公开(公告)日：1992-06-02

申请号：US677950

申请日：1991-04-01

申请人： Clifford J. Ginfrida, Jr.

发明人： Clifford J. Ginfrida, Jr.

IPC分类号： F17C13/10 ,  F17C13/12

CPC分类号： F17C13/10 ,  F17C13/123 ,  F17C2250/043 ,  Y10S285/904

摘要： A system is provided for controllably venting cryogen of extremely low temperature from a cryostat, wherein a conduit formed of selected metal provides a path of flow for the cryogen from the cryostat to an exhaust system. A gauge is coupled to the conduit, along the path of flow, by means of a bushing which thermally isolates the gauge from the metallic conduit, which is at an extremely low temperature. Thus, the gauge, which is used to continually monitor cryogen pressure, does not become unreadable due to icing or frosting as a result of heat loss from the gauge to the conduit. The bushing is formed from a material such as GC-10, and includes an intermediate portion for spacing the bushing away from the metallic conduit, and also for enclosing a dead space which substantially reduces heat transfer directly between the gauge and cryogen in the conduit.

摘要翻译： 提供了一种用于从低温恒温器可控地排出极低温的致冷剂的系统，其中由选定的金属形成的导管为冷冻剂从低温恒温器到排气系统提供流动路径。 仪表通过衬套将流量计与金属管道隔离，该套管处于极低的温度，沿流动路径与导管连接。 因此，用于连续监测制冷剂压力的量规不会因结冰或结霜而变得不可读，因为从量规到导管的热量损失。 衬套由诸如GC-10的材料形成，并且包括用于将衬套远离金属管道隔开的中间部分，并且还用于封闭死空间，该死空间基本上减少导管中的量规和制冷剂之间的热传递。