公开(公告)号：US5904469A

公开(公告)日：1999-05-18

申请号：US844505

申请日：1997-04-18

申请人： Roberto Cerruti

发明人： Roberto Cerruti

IPC分类号： F04D19/04 ,  F04D29/02 ,  F04D29/32 ,  F01D1/36

CPC分类号： F04D29/023 ,  F04D19/042 ,  F04D29/321 ,  F05D2230/40 ,  F05D2230/90 ,  F05D2260/95 ,  F05D2300/611

摘要： The present invention relates to a rotor of a vacuum pump comprising a rotatable shaft and a plurality of spaced apart parallel rotor disks secured to said rotatable shaft, such rotor being provided with a corrosion-resistant protective coating formed by a layer of polymeric material.

摘要翻译： 本发明涉及一种真空泵的转子，其包括可旋转轴和固定到所述可旋转轴的多个间隔开的平行转子盘，该转子设置有由聚合物材料层形成的耐腐蚀保护涂层。

公开(公告)号：US5872470A

公开(公告)日：1999-02-16

申请号：US758536

申请日：1996-11-29

申请人： Martin Mallinson ,  Max J. Allen ,  Richard E. Colbeth

发明人： Martin Mallinson ,  Max J. Allen ,  Richard E. Colbeth

IPC分类号： G11C27/02

CPC分类号： G11C27/026

摘要： A signal sampling circuit for performing correlated double sampling (CDS) of an input signal with a pipelined sample and hold architecture includes a time multiplexed integrating amplifier circuit in which the output circuit is a pipelined sample and hold circuit which provides time multiplexed input signal samples and the feedback integration capacitor is discharged between samples. At all times, one of the channels of the pipelined sample and hold circuit is providing one of the time multiplexed input signal samples while the other channel continues tracking the input signal. The feedback integration capacitor acts as a clamp to null out residual reset noise received as part of the input signal to be sampled. Hence, with the exception of that very brief period of time necessary for switching between the two pipelined sample and hold circuit channels, one of the two pipelined sample and hold circuit channels is always available for signal acquisition.

摘要翻译： 用于执行具有流水线采样和保持架构的输入信号的相关双采样（CDS）的信号采样电路包括时间复用积分放大器电路，其中输出电路是提供时间复用的输入信号样本的流水线采样和保持电路， 反馈积分电容器在采样之间放电。 在任何时候，流水线采样和保持电路的一个通道提供时间复用的输入信号采样之一，而另一个通道继续跟踪输入信号。 反馈积分电容器用作钳位，以将作为要采样的输入信号的一部分接收的残留复位噪声清零。 因此，除了在两个流水线采样和保持电路通道之间切换所需的非常短的时间段之外，两个流水线采样和保持电路通道之一总是可用于信号采集。

公开(公告)号：US5844963A

公开(公告)日：1998-12-01

申请号：US919836

申请日：1997-08-28

申请人： Thomas Koller ,  Rajesh Bandari ,  Jeff Takenaka ,  Rick Smith

发明人： Thomas Koller ,  Rajesh Bandari ,  Jeff Takenaka ,  Rick Smith

IPC分类号： H01J35/06 ,  H01J35/14

CPC分类号： H01J35/06 ,  H01J2235/068

摘要： A method and apparatus for superimposing a plurality of electron beams at a desired location after X-ray tube manufacturing processes are generally complete. The method is embodied in providing mechanical and electrical means which are internal to the X-ray tube which provide means for adjustment of a focal point of a plurality of electron beams being emitted from a cathode assembly to thereby provide precise control of where the plurality of electron beams achieve superimposition on a target anode.

摘要翻译： 一般在X射线管制造工序之后的期望位置上叠加多个电子束的方法和装置。 该方法体现在提供在X射线管内部的机械和电气装置，其提供用于调节从阴极组件发射的多个电子束的焦点的装置，从而提供精确控制多个 电子束实现了对目标阳极的叠加。

公开(公告)号：US5841531A

公开(公告)日：1998-11-24

申请号：US849943

申请日：1997-06-20

申请人： Craig William Gliddon

发明人： Craig William Gliddon

IPC分类号： G01J3/443 ,  H01J49/10 ,  G01N21/68 ,  G01J3/433

CPC分类号： H01J49/067 ,  G01J3/443 ,  H01J49/105

摘要： An inductively coupled plasma spectrometer including shielding/sampling means (1) located between a plasma torch (3) and an optical system (4) of the spectrometer, wherein said shielding/sampling (1) means is associated with an enclosure (9) for the plasma torch such that a relatively high independance path (10, 11) is established for limiting flow of electrical current between said shielding/sampling means (1) and said enclosure (9).

摘要翻译： PCT No.PCT / AU95 / 00856 Sec。 371日期：1997年6月20日 102（e）1997年6月20日PCT 1995年12月19日PCT PCT。 出版物WO96 / 19716 PCT 日期1996年6月27日包括位于等离子体炬（3）和光谱仪的光学系统（4）之间的屏蔽/取样装置（1）的电感耦合等离子体光谱仪，其中所述屏蔽/取样（1）装置与 用于等离子体焰炬的外壳（9），使得建立相对较高的独立路径（10,11），以限制所述屏蔽/采样装置（1）和所述外壳（9）之间的电流流动。

公开(公告)号：US5818041A

公开(公告)日：1998-10-06

申请号：US854855

申请日：1997-05-12

申请人： Alexander Mordehai ,  Sidney E. Buttrill, Jr.

发明人： Alexander Mordehai ,  Sidney E. Buttrill, Jr.

IPC分类号： H01J49/04 ,  H01J49/42 ,  H01J49/00

CPC分类号： H01J49/0445 ,  H01J49/063

摘要： A mass spectrometer system for performing a separation of ions from neutrals and mass analyzing ions comprising a inductively coupled plasma ion generating source with an ion introducing system, a radio-frequently ion guide and a mass analyzer disposed within a vacuum chamber. The space between the radio-frequency ion guide and the ion introduction system defined an aerodynamic jet region which is used for directing a sample containing ions to be analyzed to the entrance of a radio-frequency ion guide and the via the radio-frequency ion guide to the mass analyzer.

摘要翻译： 一种用于执行离子从中性离子和质量分析离子分离的质谱仪系统，其包括具有离子引入系统的电感耦合等离子体离子发生源，设置在真空室内的无线电频率离子导向器和质量分析器。 射频离子导向器和离子引入系统之间的空间限定了空气动力学喷射区域，其用于将含有要分析的离子的样品引导到射频离子导向器的入口，并且通过射频离子导向器 到质量分析仪。

公开(公告)号：US5778681A

公开(公告)日：1998-07-14

申请号：US838148

申请日：1997-04-15

申请人： Kenneth Li ,  John Robinson

发明人： Kenneth Li ,  John Robinson

IPC分类号： G01N30/16 ,  G01N30/02 ,  G01N30/12 ,  G01N30/30 ,  F17C9/02

CPC分类号： G01N30/30 ,  G01N30/12 ,  G01N2030/025 ,  G01N2030/127 ,  G01N2030/3023 ,  G01N2030/3046

摘要： The present invention is an improved modular cooling device for cooling gas chromatography analyte sample injectors. The invention is embodied in a series of tubes connected in fluid communication from a coolant supply valve to the injector heating block. A flexible supply tube capable of carrying coolant while maintaining structural integrity at temperatures up to about 150.degree. C., and having a low thermal conductivity is connected in fluid connection with a coolant supply at one end, and a transition tube at the other. A transition tube, in fluid communication with the supply tube at one end and with the cooling tube at the other, is selected to maintain structural integrity at temperatures up to 450.degree. C. and to have a low thermal conductivity. The cooling tube is in fluid communication with the transition tube at a receiving end and with an exhaust at an exhaust end, and has an outer surface that is physically engageable with a surface of the heating block. The cooling tube is capable of maintaining structural integrity at temperatures up to 450.degree. and has a high thermal conductivity (at least about 200 watts/meter .degree. C.) to facilitate heat transfer. The cooling tube further has a flattened surface for creating a greater surface area for physical engagement with the heating block to provide greater cooling effect.

摘要翻译： 本发明是用于冷却气相色谱分析物样品注射器的改进的模块化冷却装置。 本发明体现在从冷却剂供应阀流体连通到喷射器加热块的一系列管中。 能够承载冷却剂同时在高达约150℃的温度下保持结构完整性并且具有低导热性的柔性供应管与一端的冷却剂供应源和另一端的过渡管流体连接。 选择在一端与供给管和另一端与冷却管流体连通的过渡管，以在高达450℃的温度下保持结构完整性并具有低热导率。 冷却管在接收端处与过渡管流体连通，并且在排气端处与排气流体连通，并且具有与加热块的表面物理接合的外表面。 冷却管能够在高达450°的温度下保持结构完整性，并且具有高导热性（至少约200瓦/米C）以促进热传递。 冷却管还具有扁平表面，用于产生更大的表面积，用于与加热块物理接合以提供更大的冷却效果。

公开(公告)号：US5778047A

公开(公告)日：1998-07-07

申请号：US735902

申请日：1996-10-24

申请人： Stanley Mansfield ,  Ross Bernald Hannibal

发明人： Stanley Mansfield ,  Ross Bernald Hannibal

IPC分类号： A61B6/04 ,  A61N5/10

CPC分类号： A61B6/04 ,  A61N5/10

摘要： A radiotherapy couch top has a frame and preferably a pair of beams extending parallel to each other, capable independently of moving towards or away from each other while keeping their mutually parallel longitudinal direction. For supporting the beams in this way, at least two linear slide bearing ways are provided, extending parallel to each other in a transverse direction perpendicular to the beams, at least one of them being supported by the frame. A pair of riding blocks are on each of these linear slide bearing ways, each supporting a corresponding one of the beams and slidable along the linear slide bearing way. Panels are placed over the beams, including one attached to the frame and another which is removable. The removable panel may be replaced with another having an open window section provided with a grid of carbon fiber stringing capable of supporting the patient and allowing projection of radiation directly onto the patient's skin.

摘要翻译： 放射治疗沙发顶部具有框架，并且优选地是彼此平行延伸的一对梁，其能够独立于彼此移动或彼此远离，同时保持它们相互平行的纵向方向。 为了以这种方式支撑梁，提供了至少两个线性滑动轴承通道，其在垂直于梁的横向方向上彼此平行地延伸，其中至少一个由框架支撑。 在这些线性滑动轴承方向中的每一个上都有一对骑乘块，每个支撑块支撑相应的一个梁，并可沿着线性滑动轴承方式滑动。 面板放置在横梁上，包括一个连接到框架，另一个可拆卸。 可拆卸面板可以被另一个具有敞开的窗口部分替换，该窗口部分设置有能够支撑病人的碳纤维绳网格，并允许辐射直接投射到病人的皮肤上。

公开(公告)号：US5768089A

公开(公告)日：1998-06-16

申请号：US781422

申请日：1997-01-10

申请人： James Patrick Finnigan

发明人： James Patrick Finnigan

IPC分类号： G01R33/36 ,  H01G5/00

CPC分类号： G01R33/3628

摘要： A variable external capacitor produces greater functionality for NMR probes by reducing the size of components and efficiently arranging the components. The variable external capacity has a cavity that allows adjustment tools to be extended through the variable external capacitor to adjust additional components that may be stacked above the variable external capacitor. The cavity may be used to house reactance such as a fixed capacitor or inductor connected in parallel with the variable external capacitor. The variable external capacitor includes a polytetrafluoroethylene housing configured to minimize its size and reduce lead lengths of the NMR circuit. A silver deposit plate on the polytetrafluoroethylene housing constitutes a stationary capacitor plate. A drum disposed inside the cavity and movably spaced from the stationary capacitor plate functions as a movable capacitor plate. An anti-rotation rail supports the drum to prevent rotation. The drum includes internal threads that cooperates with threads provided in a plunger for adjustment of the drum in a translational direction. The plunger is supported by the rail and extends outside the cavity of the polytetrafluoroethylene housing for rotational adjustment. An insulator spaces the plunger and the drum from the stationary capacitor plate. The insulator and plunger provide a through passageway for an adjustment tool to extend therethrough. Alternatively, the space inside the insulator and plunger may be used to house a capacitor or inductor electrically supported by a current-conducting stick and connected in parallel with the variable external capacitor. A capacitor stick shifts the capacitance of the variable external capacitor, while an inductor stick forms a parallel LC resonant circuit. The structure provides the flexibility of choosing a stick to form a desirable circuit element for increased functionality of the NMR probe.

摘要翻译： 可变外部电容器通过减少元件的尺寸并有效地布置元件，为NMR探针产生更大的功能。 可变外部容量具有允许调整工具通过可变外部电容器扩展的空腔，以调整可堆叠在可变外部电容器上方的附加组件。 空腔可以用于容纳诸如与可变外部电容器并联连接的固定电容器或电感器的电抗。 可变外部电容器包括聚四氟乙烯壳体，其被配置为使其尺寸最小并且减小NMR电路的引线长度。 聚四氟乙烯壳体上的银沉积板构成固定电容器板。 设置在腔内并与固定电容器板可移动地间隔开的鼓用作可移动电容器板。 防转轨支撑滚筒以防旋转。 滚筒包括内螺纹，其与设置在柱塞中的螺纹配合，以便在平移方向上调节滚筒。 柱塞由轨道支撑，并延伸到聚四氟乙烯壳体的空腔外部，用于旋转调节。 绝缘体将柱塞和滚筒与固定电容器板隔开。 绝缘体和柱塞提供用于调节工具的通过通道以延伸穿过其中。 或者，绝缘体和柱塞内的空间可用于容纳由导电棒电耦合并与可变外部电容器并联连接的电容器或电感器。 电容器棒移动可变外部电容器的电容，而电感棒形成并联LC谐振电路。 该结构提供了选择棒以形成用于增加NMR探针的功能的理想电路元件的灵活性。

公开(公告)号：US5716485A

公开(公告)日：1998-02-10

申请号：US476966

申请日：1995-06-07

申请人： Siamak Salimian ,  Carol M. Heller ,  Lumin Li

发明人： Siamak Salimian ,  Carol M. Heller ,  Lumin Li

IPC分类号： H05H1/46 ,  C23C16/50 ,  C23F4/00 ,  H01J37/32 ,  H01L21/203 ,  H01L21/205 ,  H01L21/302 ,  H01L21/3065 ,  C23F1/02

CPC分类号： H01J37/32009 ,  H01J37/32541

摘要： Electrode designs for reducing the problem of non-uniform etch in large diameter substrates are presented. The electrode opposite the substrate being etched in a plasma reactor can be tailored as to its shape so as to control the uniformity of the etching across the substrate. This is achieved with a number of generally dome-shaped electrode structures including generally cone-shaped electrodes, generally pyramidally-shaped electrodes and generally hemispherically-shaped electrodes. It is believed that non-uniformity of etching is due, at least in part, to excess ion density at the center of the reactor. The dome-shaped electrodes serve to disperse the high concentration of ions from the center of the reactor out toward the periphery of the substrate and thereby even out the ion density distribution across the substrate being etched. The electrodes are useable in diode plasma reactors, triode plasma reactors and ICP plasma reactors.

摘要翻译： 提出了用于减少大直径基板中不均匀蚀刻问题的电极设计。 可以在等离子体反应器中蚀刻的与衬底相对的电极根据其形状进行调整，以便控制穿过衬底的蚀刻的均匀性。 这通过多个通常为圆顶形的电极结构来实现，该电极结构通常包括锥形电极，大致为棱锥形的电极和通常为半球形的电极。 据信，蚀刻的不均匀性至少部分地归因于反应器中心处的过量离子密度。 圆顶形电极用于将高浓度的离子从反应器的中心分散到衬底的周围，从而甚至通过被蚀刻的衬底上的离子密度分布。 电极可用于二极管等离子体反应器，三极管等离子体反应器和ICP等离子体反应器。

公开(公告)号：US5711812A

公开(公告)日：1998-01-27

申请号：US469401

申请日：1995-06-06

申请人： David LeRoy Chapek ,  Susan Benjamin Felch ,  Michael William Kissick ,  Shamim Muhammad Malik ,  Tienyu Terry Sheng

发明人： David LeRoy Chapek ,  Susan Benjamin Felch ,  Michael William Kissick ,  Shamim Muhammad Malik ,  Tienyu Terry Sheng

IPC分类号： H01J37/317 ,  C23C14/48 ,  H01J37/32 ,  H01L21/22 ,  H01L21/265 ,  C23C16/00

CPC分类号： H01J37/32412 ,  C23C14/48 ,  H01J37/32697

摘要： An apparatus for improving dose uniformity in the PLAsma Doping (PLAD) ion implantation of a target material is described. By providing means for simultaneously biasing both the electrode, upon which the target is disposed, and a separately biasable concentric structure introduced about the electrode and sufficiently close to the target, together with means for adjustable bias variation between the electrode and the structure one can sufficiently adjust the shape of the implantation plasma, e.g. induced electric field and plasma sheath thickness, in order to effectively provide a uniform dose distribution during PLAD ion implantation processes.

摘要翻译： 描述了用于改善目标材料的PLAsma掺杂（PLAD）离子注入中的剂量均匀性的装置。 通过提供用于同时偏置设置目标的电极和在电极周围引入并且足够靠近靶的单独可偏心的同心结构的装置，以及用于电极和结构之间的可调节偏置变化的装置，可以充分地 调整注入等离子体的形状，例如 感应电场和等离子体鞘厚度，以便在PLAD离子注入过程中有效提供均匀的剂量分布。