公开(公告)号：US07255013B2

公开(公告)日：2007-08-14

申请号：US11265234

申请日：2005-11-02

Applicant: John Urbahn ,  Robert Adolph Ackermann

Inventor： John Urbahn ,  Robert Adolph Ackermann

IPC: G01F1/46

CPC classification number: G01F1/46

Abstract: A method for calculating a mass flow rate of a cryogenic fluid within a flow tube includes positioning a sensor within a stream of cryogenic fluid flowing through the flow tube. The sensor is operatively coupled to a strain gauge. A difference between a dynamic pressure in the fluid stream and a static pressure in the fluid stream is measured and the mass flow rate of the cryogenic fluid within the flow tube is calculated.

Abstract translation: 用于计算流管内的低温流体的质量流量的方法包括将传感器定位在流过流管的低温流体流中。 传感器可操作地连接到应变仪。 测量流体流中的动态压力和流体流中的静态压力之间的差异，并计算流量管内的低温流体的质量流量。

公开(公告)号：US5759960A

公开(公告)日：1998-06-02

申请号：US648721

申请日：1996-05-16

Applicant: Robert Adolph Ackermann ,  Kenneth Gordon Herd ,  Evangelos Trifon Laskaris ,  Richard Andrew Ranze

Inventor： Robert Adolph Ackermann ,  Kenneth Gordon Herd ,  Evangelos Trifon Laskaris ,  Richard Andrew Ranze

IPC: F17C13/00 ,  F25D19/00 ,  G01R33/3815 ,  H01F6/06 ,  H01B12/00 ,  F25B19/00

CPC classification number: F25D19/006 ,  G01R33/3815 ,  H01F6/065 ,  Y10S428/93 ,  Y10S505/885 ,  Y10S505/894 ,  Y10T428/249953 ,  Y10T428/249987 ,  Y10T428/31678 ,  Y10T428/31692

Abstract: A superconductive device (e.g., magnet) having a superconductive lead assembly and cooled by a cryocooler coldhead having first and second stages. A first ceramic superconductive lead has a first end thermally connected to the first stage and a second end thermally connected to the second stage. A jacket of open cell material (e.g., polystyrene foam) is in surrounding compressive contact with the first ceramic superconductive lead, and a rigid, nonporous support tube 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 connected to the second stage.

Abstract translation: 具有超导引线组件并由具有第一和第二级的低温冷却器冷头冷却的超导装置（例如，磁体）。 第一陶瓷超导引线具有热连接到第一级的第一端和与第二级热连接的第二端。 露天电池材料（例如聚苯乙烯泡沫）的外壳与第一陶瓷超导导线周围压缩接触，并且刚性无孔支撑管围绕外壳。 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。

公开(公告)号：US06437568B1

公开(公告)日：2002-08-20

申请号：US09676945

申请日：2000-10-02

Applicant: William Alan Edelstein ,  Richard Philip Mallozzi ,  Robert Arvin Hedeen ,  Sayed-Amr El-Hamamsy ,  Mark Lloyd Miller ,  Paul Shadforth Thompson ,  Robert Adolph Ackermann ,  Bruce Campbell Amm ,  John Peter Fura ,  Mike James Radziun ,  David Edward Dean ,  Scott Thomas Mansell ,  Dewain Anthony Purgill ,  Robert Michael Vavrek

Inventor： William Alan Edelstein ,  Richard Philip Mallozzi ,  Robert Arvin Hedeen ,  Sayed-Amr El-Hamamsy ,  Mark Lloyd Miller ,  Paul Shadforth Thompson ,  Robert Adolph Ackermann ,  Bruce Campbell Amm ,  John Peter Fura ,  Mike James Radziun ,  David Edward Dean ,  Scott Thomas Mansell ,  Dewain Anthony Purgill ,  Robert Michael Vavrek

IPC: G01V300

CPC classification number: G01R33/3854

Abstract: A low noise imaging apparatus for producing Magnetic Resonance (MR) images of a subject and for substantially minimizing acoustic noise generated during imaging is provided. The imaging apparatus comprises a magnet assembly, a gradient coil assembly, and a rf coil assembly, wherein at least one of the magnet assembly, the gradient coil assembly and the rf coil assembly are configured to reduce the generation and transmission of acoustic noise.

Abstract translation: 提供了用于产生受试者的磁共振（MR）图像并且用于基本上最小化在成像期间产生的声学噪声的低噪声成像装置。 成像设备包括磁体组件，梯度线圈组件和射频线圈组件，其中磁体组件，梯度线圈组件和射频线圈组件中的至少一个被配置为减少声学噪声的产生和传输。

公开(公告)号：US06412289B1

公开(公告)日：2002-07-02

申请号：US09854931

申请日：2001-05-15

Applicant: Evangelos Trifon Laskaris ,  James Pellegrino Alexander ,  Robert Adolph Ackermann

Inventor： Evangelos Trifon Laskaris ,  James Pellegrino Alexander ,  Robert Adolph Ackermann

IPC: F17C1300

CPC classification number: H02K55/04 ,  H02K9/193 ,  Y02E40/625

Abstract: A cooling fluid coupling is disclosed for providing cooling fluid to a rotor having a super-conducting winding of a synchronous machine and a source of cryogenic cooling fluid. The fluid coupling comprises an inlet cooling tube and an outlet cooling tube in the rotor and coaxial with an axis of the rotor. The inlet cooling tube has an input port coupled to receive inlet cooling fluid from the source of cryogenic cooling fluid. The outlet cooling tube has an output port coupled to return cooling fluid from the rotor to source. A stationary motion gap seal separates the input port and output port of the coupling.

Abstract translation: 公开了一种用于向具有同步电机的超导绕组和低温冷却流体源的转子提供冷却流体的冷却流体联接器。 流体联接器包括入口冷却管和转子中的出口冷却管，并与转子的轴线同轴。 入口冷却管具有联接以从低温冷却流体源接收入口冷却流体的输入端口。 出口冷却管具有联接以将冷却流体从转子返回到源的输出端口。 静止运动间隙密封件分离联轴器的输入端口和输出端口。