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1. 发明申请

US20080137811A1 PUMPING SCHEMES FOR X-RAY TUBES WITH FERROFLUID SEALS 有权
标题翻译：用于流体密封的X射线管的泵送方案
公开(公告)号：US20080137811A1
公开(公告)日：2008-06-12
申请号：US11609842
申请日：2006-12-12
申请人： Aniruddha Dattatraya Gadre , Darren Lee Hallman , John Scott Price , Paul M. Ratzmann , Richard Michael Roffers , Walter John Smith
发明人： Aniruddha Dattatraya Gadre , Darren Lee Hallman , John Scott Price , Paul M. Ratzmann , Richard Michael Roffers , Walter John Smith
IPC分类号： H01J35/20 , F16J15/43
CPC分类号： H01J35/101 , F16J15/43 , H01J2235/1046 , H01J2235/1066 , H01J2235/108
摘要： A system for mitigating a gas load imposed upon a high vacuum chamber, thereby reducing the overall pressure, includes a device mounted onto a rotating gantry. The device has a first chamber enclosing a high vacuum and a first region in which anode bearings are positioned. A rotatable shaft has a first portion extending into the first chamber and a second portion extending into the first region. A ferrofluid seal is positioned about the rotatable shaft and positioned between the first portion and the second portion, the ferrofluid seal fluidically separating the first chamber from the first region. At least one pressure-reducing unit is fluidically connected to the first chamber.
摘要翻译：用于减轻施加在高真空室上的气体负载从而降低总体压力的系统包括安装在旋转机架上的装置。该装置具有包围高真空的第一室和阳极轴承定位的第一区域。旋转轴具有延伸到第一室中的第一部分和延伸到第一区域中的第二部分。铁磁流体密封件围绕可旋转轴定位并定位在第一部分和第二部分之间，铁磁流体密封件使第一腔室与第一区域流体分离。至少一个减压单元流体地连接到第一室。

2. 发明授权

US07519158B2 Pumping schemes for X-ray tubes with ferrofluid seals 有权
标题翻译：具有铁磁流体密封的X射线管的泵送方案
公开(公告)号：US07519158B2
公开(公告)日：2009-04-14
申请号：US11609842
申请日：2006-12-12
申请人： Aniruddha Dattatraya Gadre , Darren Lee Hallman , John Scott Price , Paul M. Ratzmann , Richard Michael Roffers , Walter John Smith
发明人： Aniruddha Dattatraya Gadre , Darren Lee Hallman , John Scott Price , Paul M. Ratzmann , Richard Michael Roffers , Walter John Smith
IPC分类号： H01J35/20 , H01J35/00
CPC分类号： H01J35/101 , F16J15/43 , H01J2235/1046 , H01J2235/1066 , H01J2235/108
摘要： A system for mitigating a gas load imposed upon a high vacuum chamber, thereby reducing the overall pressure, includes a device mounted onto a rotating gantry. The device has a first chamber enclosing a high vacuum and a first region in which anode bearings are positioned. A rotatable shaft has a first portion extending into the first chamber and a second portion extending into the first region. A ferrofluid seal is positioned about the rotatable shaft and positioned between the first portion and the second portion, the ferrofluid seal fluidically separating the first chamber from the first region. At least one pressure-reducing unit is fluidically connected to the first chamber.
摘要翻译：用于减轻施加在高真空室上的气体负载从而降低总体压力的系统包括安装在旋转机架上的装置。该装置具有包围高真空的第一室和阳极轴承定位的第一区域。旋转轴具有延伸到第一室中的第一部分和延伸到第一区域中的第二部分。铁磁流体密封件围绕可旋转轴定位并定位在第一部分和第二部分之间，铁磁流体密封件使第一腔室与第一区域流体分离。至少一个减压单元流体地连接到第一室。

3. 发明授权

US07693264B2 Antechamber control reducing leak through ferrofluid seals 失效
标题翻译： Antechamber控制通过铁流体密封减少泄漏
公开(公告)号：US07693264B2
公开(公告)日：2010-04-06
申请号：US11557201
申请日：2006-11-07
申请人： Aniruddha Gadre , Darren Lee Hallman , Paul M. Ratzmann , Richard Michael Roffers , John Scott Price
发明人： Aniruddha Gadre , Darren Lee Hallman , Paul M. Ratzmann , Richard Michael Roffers , John Scott Price
IPC分类号： H01J35/20
CPC分类号： H01J35/101 , H01J35/20 , H01J2235/20 , Y10T29/49826
摘要： A system for controlling a gas load imposed upon a high vacuum chamber includes a first chamber enclosing a high vacuum and positioned within an ambient environment, a second chamber enclosing a gas and positioned within the ambient environment adjacent to the first chamber, and a rotatable shaft having a first portion extending into the first chamber and a second portion extending into the second chamber. A ferrofluid seal is positioned about the rotatable shaft and positioned between the first portion and the second portion and the ferrofluid seal fluidically separates the first chamber from the second chamber. A control unit is attached to the second chamber and configured to control the gas enclosed in the second chamber such that a gas load in the first chamber is reduced.
摘要翻译：用于控制施加在高真空室上的气体负载的系统包括封闭高真空并且定位在周围环境内的第一室，封闭气体并位于邻近第一室的周围环境内的第二室，以及可旋转轴具有延伸到第一室中的第一部分和延伸到第二室中的第二部分。铁磁流体密封件围绕可旋转轴定位并定位在第一部分和第二部分之间，并且铁磁流体密封件使第一腔室与第二腔室流体分离。控制单元附接到第二室，并且被配置为控制封闭在第二室中的气体，使得第一室中的气体负载减小。

4. 发明申请

US20080107236A1 ANTECHAMBER CONTROL REDUCING LEAK THROUGH FERROFLUID SEALS 失效
标题翻译： ANTECHAMBER控制减少通过FERROFLUID密封泄漏
公开(公告)号：US20080107236A1
公开(公告)日：2008-05-08
申请号：US11557201
申请日：2006-11-07
申请人： Aniruddha Gadre , Darren Lee Hallman , Paul M. Ratzmann , Richard Michael Roffers , John Scott Price
发明人： Aniruddha Gadre , Darren Lee Hallman , Paul M. Ratzmann , Richard Michael Roffers , John Scott Price
IPC分类号： H01J35/10 , F16J15/43 , B23P11/00
CPC分类号： H01J35/101 , H01J35/20 , H01J2235/20 , Y10T29/49826
摘要： A system for controlling a gas load imposed upon a high vacuum chamber includes a first chamber enclosing a high vacuum and positioned within an ambient environment, a second chamber enclosing a gas and positioned within the ambient environment adjacent to the first chamber, and a rotatable shaft having a first portion extending into the first chamber and a second portion extending into the second chamber. A ferrofluid seal is positioned about the rotatable shaft and positioned between the first portion and the second portion and the ferrofluid seal fluidically separates the first chamber from the second chamber. A control unit is attached to the second chamber and configured to control the gas enclosed in the second chamber such that a gas load in the first chamber is reduced.
摘要翻译：用于控制施加在高真空室上的气体负载的系统包括封闭高真空并且定位在周围环境内的第一室，封闭气体并位于邻近第一室的周围环境内的第二室，以及可旋转轴具有延伸到第一室中的第一部分和延伸到第二室中的第二部分。铁磁流体密封件围绕可旋转轴定位并定位在第一部分和第二部分之间，并且铁磁流体密封件使第一腔室与第二腔室流体分离。控制单元附接到第二室，并且被配置为控制封闭在第二室中的气体，使得第一室中的气体负载减小。

5. 发明授权

US07769128B2 Support structure for z-extensible CT detectors and methods of making same 有权
标题翻译： z可扩展CT检测器的支撑结构及其制作方法
公开(公告)号：US07769128B2
公开(公告)日：2010-08-03
申请号：US11619112
申请日：2007-01-02
申请人： Paul M. Ratzmann
发明人： Paul M. Ratzmann
IPC分类号： A61B6/03 , H05G1/64
CPC分类号： H01L27/14658 , A61B6/035 , A61B6/4411
摘要： Pin-based support structures for easily and precisely assembling CT detector components into individual detector modules are described, as are methods of making the same. The pins in these structures serve as the local reference points against which all other detector components (i.e., collimators, scintillator packs, diodes, electronic flex connectors, etc.) are aligned. The pins may also be used to quickly and easily attach the individual detector modules to the local detector reference frame and then to the global reference frame in a CT imaging system. These structures allow CT detector components to be more easily and economically assembled than previously possible. Furthermore, these structures are extensible in the Z-direction, allowing for longer Z-coverage with each rotation of the gantry, thereby allowing for full organ imaging in a single CT scan.
摘要翻译：描述了将CT检测器部件容易且精确地组装到各个检测器模块中的基于引脚的支撑结构，以及制造它们的方法。这些结构中的引脚用作所有其他检测器组件（即准直器，闪烁体组件，二极管，电子柔性连接器等）对齐的局部参考点。引脚还可以用于快速且容易地将各个检测器模块连接到本地检测器参考系，然后连接到CT成像系统中的全局参考系。这些结构允许CT检测器部件比以前更容易和经济地组装。此外，这些结构在Z方向上是可延伸的，允许在台架的每次旋转时更长的Z-覆盖，从而允许在单次CT扫描中进行全器官成像。

6. 发明授权

US07377695B2 Integral duplex bearings for rotating x-ray anode 失效
标题翻译：用于旋转x射线阳极的一体双面轴承
公开(公告)号：US07377695B2
公开(公告)日：2008-05-27
申请号：US11163338
申请日：2005-10-14
申请人： Liangheng Qiu , Thomas Dean Schaefer , Paul M. Ratzmann
发明人： Liangheng Qiu , Thomas Dean Schaefer , Paul M. Ratzmann
IPC分类号： F16C33/60 , H01J35/10
CPC分类号： H01J35/101 , F16C19/54 , Y10S384/905
摘要： An x-ray target assembly is provided comprising a drive shaft and an outer shaft housing element. A primary integral duplex bearing assembly is positioned between the outer shaft housing element and the drive shaft and comprises a primary fixed outer race and a primary dual inner race comprising a first primary inner race element and a second primary race element. A plurality of primary ball elements are positioned therebetween. A secondary integral duplex bearing assembly is positioned between the outer shaft housing element and the drive shaft and comprises a secondary floating outer race comprising a single secondary race element. A secondary dual inner race is comprised of a first secondary inner race element and a second secondary race element. A plurality of secondary ball elements are positioned between the secondary floating outer race and the secondary dual inner race.
摘要翻译：提供了包括驱动轴和外轴壳体元件的X射线靶组件。主要一体式双相轴承组件定位在外轴壳体元件和驱动轴之间，并且包括主固定外圈和包括第一主内圈元件和第二主座圈元件的主双内圈。多个主球元件位于它们之间。第二整体式双相轴承组件定位在外轴壳体元件和驱动轴之间，并且包括包括单个次级座圈元件的次级浮动外座圈。次级双内圈由第一副内圈元件和第二辅助赛道元件组成。多个次级球元件位于第二浮动外圈和次级双内圈之间。

7. 发明授权

US06456693B1 Multiple row spiral groove bearing for X-ray tube 失效
标题翻译：多列螺旋槽轴承用于X射线管
公开(公告)号：US06456693B1
公开(公告)日：2002-09-24
申请号：US09681466
申请日：2001-04-12
申请人： Paul M. Ratzmann , Douglas J. Snyder
发明人： Paul M. Ratzmann , Douglas J. Snyder
IPC分类号： H01J3510
CPC分类号： H01J35/101 , H01J2235/1053 , H01J2235/1086
摘要： A multiple row spiral grooved bearing assembly 26 for use in a rotating anode X ray tube device 10 has an intermediate race 32 having a spiral grooved inner 34 and outer 36 surface placed between an outer housing 28 and an inner bearing shaft 30. A layer of gallium 42, 44 is interposed between the spiral grooved inner surface 34 and the inner bearing shaft 30 and between the spiral grooved outer surface 36 and outer housing 28 to provide lubrication for the surfaces of the intermediate race 32. The intermediate race 32 reduces the relative velocity between moving parts, thereby reducing heat generation of the bearing assembly 26 for a given anode rotation speed. This enables higher target 14 velocities, and hence higher focal spot power, available to the x-ray tube device 10 as compared with traditional ball-type bearing designs.
摘要翻译：在旋转阳极X射线管装置10中使用的多排螺旋槽状轴承组件26具有中间座圈32，其具有设置在外壳体28和内轴承轴30之间的螺旋槽内部34和外部36表面。镓42,44插入在螺旋槽内表面34和内轴承轴30之间以及螺旋槽外表面36和外壳28之间，以为中间座圈32的表面提供润滑。中间座圈32减小了相对运动部件之间的速度，从而在给定的阳极转速下减少轴承组件26的热量产生。与传统的球型轴承设计相比，这使得X射线管装置10能够获得更高的目标14速度，因此可以获得更高的焦斑功率。

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