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1.发明授权公开(公告)号：US06729174B1
公开(公告)日：2004-05-04
申请号：US10216679
申请日：2002-08-08
IPC分类号： G01M326
CPC分类号： H01J37/32596 , H01J1/025
摘要： The design and manufacturing processes for Hollow Cathode Assemblies (HCA's) that operate over a broad range of emission currents up to 30 Amperes, at low potentials, with lifetimes in excess of 17,500 hours. The processes include contamination control procedures which cover hollow cathode component cleaning procedures, gas feed system designs and specifications, and hollow cathode activation and operating procedures to thereby produce cathode assemblies that have demonstrated stable and repeatable operating conditions, for both the discharge current and voltage. The HCA of this invention provides lifetimes of greater than 10,000 hours, and expected lifetimes of greater than 17,500 hours, whereas the present state-of-the-art is less than 500 hours at emission currents in excess of 1 Ampere. Stable operation is provided over a large range of operating emission currents, up to a 6:1 ratio, and this HCA can emit electron currents of up to 30 Amperes in magnitude to an external anode that simulates the current drawn to a space plasma, at voltages of less than 20 Volts.
摘要翻译： 空心阴极组件（HCA）的设计和制造过程，其工作范围广泛，发射电流高达30安培，电位低，寿命超过17,500小时。 这些方法包括污染控制程序，其涵盖空心阴极部件清洁程序，气体供给系统设计和规范，以及中空阴极活化和操作程序，从而产生对于放电电流和电压都已经证明稳定和可重复的操作条件的阴极组件。 本发明的HCA提供的寿命大于10,000小时，预期寿命大于17,500小时，而现有技术在超过1安培的发射电流下小于500小时。 在大范围的工作发射电流下提供稳定的操作，高达6：1的比例，并且该HCA可以向外部阳极发射高达30安培的电子电流，该外部阳极模拟吸入空间等离子体的电流， 电压小于20伏。
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2.发明授权Process for thermal imaging scanning of a swaged heater for an anode subassembly of a hollow cathode assembly 失效用于中空阴极组件的阳极子组件的模锻加热器的热成像扫描的方法公开(公告)号：US06676288B1
公开(公告)日：2004-01-13
申请号：US10216678
申请日：2002-08-08
IPC分类号： G01J546
CPC分类号： H01J37/32596 , H01J1/025
摘要： A process for thermal imaging scanning of a swaged heater of an anode subassembly of a hollow cathode assembly, comprising scanning a swaged heater with a thermal imaging radiometer to measure a temperature distribution of the heater; raising the current in a power supply to increase the temperature of the swaged heater; and measuring the swaged heater temperature using the radiometer, whereupon the temperature distribution along the length of the heater shall be less than plus or minus 5 degrees C.
摘要翻译： 一种用于对中空阴极组件的阳极子组件的模锻加热器进行热成像扫描的方法，包括用热成像辐射计扫描加热器以测量加热器的温度分布; 提高电源中的电流以增加加热器的温度; 并使用辐射计测量加热器的加热器温度，因此沿着加热器长度的温度分布应小于正负5摄氏度。
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3.发明授权Process for ignition of gaseous electrical discharge between electrodes of a hollow cathode assembly 失效在空心阴极组件的电极之间点燃气体放电的过程
公开(公告)号：US6064156A
公开(公告)日：2000-05-16
申请号：US152407
申请日：1998-09-14
CPC分类号： H01J37/32596 , H01J1/025
摘要： The design and manufacturing processes for Hollow Cathode Assemblies (HCA that operate over a broad range of emission currents up to 30 Amperes, at low potentials, with lifetimes in excess of 17,500 hours. The processes include contamination control procedures which cover hollow cathode component cleaning procedures, gas feed system designs and specifications, and hollow cathode activation and operating procedures to thereby produce cathode assemblies that have demonstrated stable and repeatable operating conditions, for both the discharge current and voltage. The HCA of this invention provides lifetimes of greater than 10,000 hours, and expected lifetimes of greater than 17,500 hours, whereas the present state-of-the-art is less than 500 hours at emission currents in excess of 1 Ampere. Stable operation is provided over a large range of operating emission currents, up to a 6:1 ratio, and this HCA can emit electron currents of up to 30 Amperes in magnitude to an external anode that simulates the current drawn to a space plasma, at voltages of less than 20 Volts.
摘要翻译： 空心阴极组件（HCA）的设计和制造过程，其工作范围广泛，发射电流高达30安培，电位低，寿命超过17,500小时。 这些方法包括污染控制程序，其涵盖空心阴极部件清洁程序，气体供给系统设计和规范，以及中空阴极活化和操作程序，从而产生对于放电电流和电压都已经证明稳定和可重复的操作条件的阴极组件。 本发明的HCA提供的寿命大于10,000小时，预期寿命大于17,500小时，而现有技术在超过1安培的发射电流下小于500小时。 在大范围的工作发射电流下提供稳定的操作，高达6：1的比例，并且该HCA可以向外部阳极发射高达30安培的电子电流，该外部阳极模拟吸入空间等离子体的电流， 电压小于20伏。
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4.发明授权Process for testing compaction of a swaged heater for an anode sub-assembly of a hollow cathode assembly 失效用于测试中空阴极组件的阳极子组件的挤压加热器的压实的方法公开(公告)号：US06539818B1
公开(公告)日：2003-04-01
申请号：US10081001
申请日：2002-02-19
IPC分类号： G01N1900
CPC分类号： H01J37/32596 , H01J1/025
摘要： A process for testing compaction of a swaged heater for an anode sub-assembly of a Hollow Cathode Assembly (HCA), in which a test sample is cleaned, its mass measured before and after immersion in kerosene for 24 hours, and a compaction percentage calculated. A swaged heater is rejected if the compaction percentage exceeds 84%, plus or minus 4%.
摘要翻译： 用于测试中空阴极组件（HCA）的阳极子组件的冲压加热器的压实方法，其中清洗测试样品，在浸入煤油中之前和之后测量其质量24小时，并计算压实百分比 。 如果压实百分比超过84％，加或减4％，则模锻加热器被拒绝。
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5.发明授权Processes for cleaning a cathode tube and assemblies in a hollow cathode assembly 失效用于清洁中空阴极组件中的阴极管和组件的方法公开(公告)号：US06240932B1
公开(公告)日：2001-06-05
申请号：US09503658
申请日：2000-02-14
IPC分类号： B08B312
CPC分类号： H01J37/32596 , H01J1/025
摘要： “The present invention is a process for cleaning a cathode tube and other subassemblies in a hollow cathode assembly. In the disclosed process, hand covering elastomer gloves are used for handling all cathode assembly parts. The cathode tube and other subassemblies are cleaned with a lint-free cloth damped with acetone, then wiped with alcohol, immersed in ethyl alcohol or acetone, and ultrasonic agitation is applied, heating to 60° C. for ethyl alcohol or 56° C. for acetone. The cathode tube and other sub assemblies are dried by blowing with nitrogen gas.”
摘要翻译： “本发明是用于清洁中空阴极组件中的阴极管和其它子组件的方法，在所公开的方法中，手用弹性手套用于处理所有阴极组件，阴极管和其它子组件用棉绒 无纺布用丙酮阻尼，然后用酒精擦拭，浸于乙醇或丙酮中，超声波搅拌，加热至乙醇为60℃，丙酮为56℃，阴极管和其他副组件为 通过吹氮气干燥“。
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6.发明授权公开(公告)号：US06380685B2
公开(公告)日：2002-04-30
申请号：US09754388
申请日：2000-12-28
IPC分类号： B07B312
CPC分类号： H01J37/32596 , H01J1/025
摘要： The design and manufacturing processes for Hollow Cathode Assemblies (HCA's) that operate over a broad range of emission currents up to 30 Amperes, at low potentials, with lifetimes in excess of 17,500 hours. The processes include contamination control procedures which cover hollow cathode component cleaning procedures, gas feed system designs and specifications, and hollow cathode activation and operating procedures to thereby produce cathode assemblies that have demonstrated stable and repeatable operating conditions, for both the discharge current and voltage. The HCA of this invention provides lifetimes of greater than 10,000 hours, and expected lifetimes of greater than 17,500 hours, whereas the present state-of-the-art is less than 500 hours at emission currents in excess of 1 Ampere. Stable operation is provided over a large range of operating emission currents, up to a 6:1 ratio, and this HCA can emit electron currents of up to 30 Amperes in magnitude to an external anode that simulates the current drawn to a space plasma, at voltages of less than 20 Volts.
摘要翻译： 空心阴极组件（HCA）的设计和制造过程，其工作范围广泛，发射电流高达30安培，电位低，寿命超过17,500小时。 这些方法包括污染控制程序，其涵盖空心阴极部件清洁程序，气体供给系统设计和规范，以及中空阴极活化和操作程序，从而产生对于放电电流和电压都已经证明稳定和可重复的操作条件的阴极组件。 本发明的HCA提供的寿命大于10,000小时，预期寿命大于17,500小时，而现有技术在超过1安培的发射电流下小于500小时。 在大范围的工作发射电流下提供稳定的操作，高达6：1的比例，并且该HCA能够向外部阳极发射高达30安培的电子电流，该外部阳极模拟吸入空间等离子体的电流， 电压小于20伏。
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7.发明授权公开(公告)号：US06829920B1
公开(公告)日：2004-12-14
申请号：US10216681
申请日：2002-08-08
IPC分类号： G01N3700
CPC分类号： H01J37/32596 , H01J1/025
摘要： A process for testing an impregnated insert of a Hollow Cathode Assembly (HCA) subsequent to every exposure of the HCA to air, and prior to ignition, using a heater and an oil-free assembly having a base pressure of less than 5.0×10−6 torr. The process comprises the steps of: installing the HCA in a vacuum; energizing the heater to a particular current level; de-energizing the heater after one-half hour; again energizing the heater to a particular current level; and de-energizing the heater for at least one-half hour.
摘要翻译： 在HCA暴露于空气之后并且在点燃之前，使用基础压力小于5.0×10 -3的加热器和无油组件，测试中空阴极组件（HCA）的浸渍插入件的方法。 6> torr。 该方法包括以下步骤：在真空中安装HCA; 将加热器通电到特定的电流水平; 半小时后将加热器断电; 再次将加热器通电到特定的电流水平; 并将加热器断电至少半小时。
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公开(公告)号：US06374716B1
公开(公告)日：2002-04-23
申请号：US09514986
申请日：2000-02-29
IPC分类号： B27B3314
CPC分类号： B27B33/14 , Y10T83/909 , Y10T83/921 , Y10T83/925 , Y10T83/9329
摘要： A high speed harvester cutting chain has increased cutter height to provide an increased space for removal of the cut material from the saw kerf. The increased height of the cutter links eliminates the compacting of the material cut away by the cutter links between the saw chain and the base of the saw kerf. The foot of the cutter links are flared outward to contact the guide bar rails at a different position than the tie straps to increase the wear life of the guide bar and saw chain.
摘要翻译： 高速收割机切割链具有增加的切割器高度，以提供从切割锯切除去切割材料的增加的空间。 切割链节的增加的高度消除了由锯链和锯切基部之间的切割链节切割的材料的压实。 切割器连杆的脚向外张开，以与导带不同的位置接触导杆导轨，以增加导杆和锯链的磨损寿命。
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公开(公告)号：US20220234766A1
公开(公告)日：2022-07-28
申请号：US17524401
申请日：2021-11-11
申请人： Michael J. Patterson
发明人： Michael J. Patterson
IPC分类号： B64G1/40
摘要： A method includes producing an electric propulsion (EP) rocket engine. The method selects a core discharge chamber. A discharge cathode assembly (DCA) is selected along with a DCA common interface (CI). The DCA CI is connected to the core discharge chamber and the DCA is connected to the DCA CI. A neutralizer cathode assembly (NCA) is selected with an NCA CI. The NCA CI is connected to the core discharge chamber and the NCA is connected to the NCA CI. An ion optics assembly (IOA) is selected along with an IOA CI. The IOA CI is connected to the core discharge chamber and the IOA is connected to the IOA CI. The three common interfaces: DCA CI, NCA CI, and IOA CI allow for different subassemblies to be connected to their respective common interfaces—for purposes of re-configurability to accommodate changes in operational requirements, or replacement of subassemblies.
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公开(公告)号：US07493869B1
公开(公告)日：2009-02-24
申请号：US11311183
申请日：2005-12-16
IPC分类号： C23C16/00
CPC分类号： H01J37/3266 , H01J27/18 , H01J37/32192 , H01J37/3222 , H01J37/32678
摘要： The present invention is an apparatus and method for producing very large area and large volume plasmas. The invention utilizes electron cylcotron resonances in conjunction with permanent magnets to produce dense, uniform plasmas for long life ion thruster applications or for plasma processing applications such as etching, deposition, ion milling and ion implantation. The large area source is at least five times larger than the 12-inch wafers being processed to date. Its rectangular shape makes it easier to accommodate to materials processing than sources that are circular in shape. The source itself represents the largest ECR ion source built to date. It is electrodeless and does not utilize electromagnets to generate the ECR magnetic circuit, nor does it make use of windows.
摘要翻译： 本发明是用于制造非常大面积和大体积等离子体的装置和方法。 本发明利用电子圆筒谐振与永磁体相结合，为长寿命离子推进器应用或诸如蚀刻，沉积，离子研磨和离子注入等离子体处理应用产生致密均匀的等离子体。 大面积来源至少比正在处理的12英寸晶圆大五倍。 其矩形形状使得容易适应于材料加工而不是圆形形状的源。 源本身代表了迄今为止最大的ECR离子源。 它是无电极的，不使用电磁铁来产生ECR磁路，也不利用窗户。
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