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公开(公告)号：US4671777A
公开(公告)日：1987-06-09
申请号：US855233
申请日：1986-04-24
Applicant: Johannes van Esdonk , Henricus A. M. van Hal , Josef J. van Lith
Inventor： Johannes van Esdonk , Henricus A. M. van Hal , Josef J. van Lith
Abstract: The invention relates to a method of manufacturing a dispenser cathode having a porous tungsten body, in which a metal oxide is provided in the body and the body is impregnated with barium. Good results as regards life and resistance to ion bombardment are obtained if the comparatively cheap oxides of gallium and indium are used.
Abstract translation: 本发明涉及一种制造具有多孔钨体的分配器阴极的方法，其中金属氧化物设置在主体中并且主体被钡浸渍。 如果使用相对便宜的镓和铟的氧化物，则可获得关于生命和抵抗离子轰击的良好结果。
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公开(公告)号：US4587455A
公开(公告)日：1986-05-06
申请号：US736965
申请日：1985-05-21
Applicant: Louis R. Falce , Glenn S. Breeze
Inventor： Louis R. Falce , Glenn S. Breeze
Abstract: An emitter-dispenser housing for a controlled porosity dispenser cathode manufactured of a single material as a unitary piece by a chemical vapor deposition process in which a configured mandrel is coated with a layer of material such as tungsten, for example, so that when the mandrel is removed from the coating of material a hollow housing is formed having a side wall and an end wall which define a reservoir. In addition, intersecting strips of this same material as the coating, which had been placed in the mandrel, extend transversely across the reservoir with the edges thereof atomically bonded to the coating during the chemical vapor deposition to form a unitary piece. Thereafter an array of apertures is formed in the end wall of the housing by laser drilling to create an emitter-dispenser.
Abstract translation: 用于通过化学气相沉积工艺由单一材料制成的单一材料作为整体件的发射器 - 分配器壳体，其中所配置的心轴涂覆有例如钨的材料层，使得当心轴 从材料涂层去除，形成有中空壳体，其具有限定储存器的侧壁和端壁。 此外，已经放置在心轴中的与涂层相同的材料的相交的条带横向延伸穿过储存器，其中在化学气相沉积期间其边缘原子地结合到涂层上以形成整体。 此后，通过激光钻孔在壳体的端壁中形成孔阵列以产生发射器 - 分配器。
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163.发明授权Thermoelectric cathode for a hyperfrequency valve and valves incorporating such cathodes 失效用于超频阀的热电阴极和并入这种阴极的阀
公开(公告)号：US4494035A
公开(公告)日：1985-01-15
申请号：US318316
申请日：1981-11-04
Applicant: Pierre Palluel , Arvind Shroff
Inventor： Pierre Palluel , Arvind Shroff
Abstract: This invention concerns a thermoelectronic cathode for hyperfrequency electron tubes.The cathode comprises a cylindrical molybdenum casing, the lower portion of which contains a heating filament, while the upper portion contains two superimposed porous bodies, the lower one made from impregnated material, and the upper one from non-impregnated material.
Abstract translation: 本发明涉及一种用于超频电子管的热电子阴极。 阴极包括一个圆柱形的钼壳体，其下部包含加热丝，而上部包含两个重叠的多孔体，下部由多个浸渍的材料制成，上部由非浸渍材料制成。
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公开(公告)号：US4310775A
公开(公告)日：1982-01-12
申请号：US67925
申请日：1979-08-20
Applicant: Hinrich Heynisch
Inventor： Hinrich Heynisch
CPC classification number: H01J1/28
Abstract: In an exemplary embodiment, a metal capillary cathode for electric discharge vessels with an emission substance carrier disk porous on its front face and comprised of metal melting at a high temperature is constructed to prevent lateral emission of electrons (interfering emission). To this end, the disclosure provides that the emission substance carrier disk has a nonporous outer casing surface with a higher electron work function than the outer, active surface of the emission substance carrier disk. Such a dispenser cathode is employed as a metal capillary cathode in traveling wave tubes.
Abstract translation: 在示例性实施例中，构造了用于放电容器的金属毛细管阴极，其前表面多孔的发射物质载体盘和由高温熔化的金属构成，以防止电子的横向发射（干扰发射）。 为此，本公开提供了排放物质载体盘具有比排放物质载体盘的外部活性表面更高的电子功函数的无孔外壳表面。 这种分配器阴极用作行波管中的金属毛细管阴极。
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165.发明授权Thermionic cathode having an embedded grid, process for its fabrication, and high frequency electron tubes using such a cathode 失效具有嵌入式栅格的热电阴极，其制造方法以及使用这种阴极的高频电子管
公开(公告)号：US4302702A
公开(公告)日：1981-11-24
申请号：US904240
申请日：1978-05-09
Applicant: Jean Montgaillard , Arvind Shroff
Inventor： Jean Montgaillard , Arvind Shroff
Abstract: The invention relates to metal oxide activated porous tungsten cathodes and methods of their manufacture. A cathode 1 of porous tungsten activated by metal oxides is mounted on a housing 2 which has a heating filament 3. On the outer face of the cathode there is a pattern or grid of pure tungsten (preferably formed by a chemical vapor deposition of WCl.sub.6 or WF.sub.6) of crystalline material the outer face of which has an orientation in the (100) or (110) plane and is parallel to the surface of the cathode. The invention will find particular use in the cathode guns of high frequency tubes such as traveling wave tubes and klystrons.
Abstract translation: 本发明涉及金属氧化物活化的多孔钨阴极及其制造方法。 由金属氧化物活化的多孔钨的阴极1安装在具有加热丝3的壳体2上。在阴极的外表面上有纯钨的图案或格栅（优选通过化学气相沉积WCl6或 WF6），其外表面在（100）或（110）平面中具有取向并且平行于阴极的表面。 本发明将特别用于高频管如行波管和速调管的阴极枪。
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Patent Agency Ranking
公开(公告)号：US4274030A
公开(公告)日：1981-06-16
申请号：US26649
申请日：1979-04-03
Applicant: Charley Buxbaum
Inventor： Charley Buxbaum
Abstract: A reaction thermionic cathode of the diffusion type on the basis of an activated high-temperature support metal doped with a diffusion-promoting additive for the activator substance, provided with a barrier layer inhibiting the self-diffusion of this additive in an undesired direction.
Abstract translation: 基于掺杂有活化剂物质的扩散促进添加剂的活化的高温载体金属，扩散型的反应热离子阴极设置有抑制该添加剂在不期望的方向上的自扩散的阻挡层。
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公开(公告)号：US4147954A
公开(公告)日：1979-04-03
申请号：US813529
申请日：1977-07-07
Applicant: Richard A. Tuck
Inventor： Richard A. Tuck
CPC classification number: H01J1/28
Abstract: A thermionic electron emitter comprises a tube of wall thickness less than 0.1 mm, a body of thermionic electron emissive material compressed and sintered in the tube, and a ring, coaxial with the tube, within the body to provide constraint against cracking of the body.
Abstract translation: 热离子电子发射器包括壁厚小于0.1mm的管，在管中压缩和烧结的热离子电子发射材料的主体以及与管同轴的环体，以提供对体的开裂的约束。
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公开(公告)号：US4101800A
公开(公告)日：1978-07-18
申请号：US813389
申请日：1977-07-06
Applicant: Richard E. Thomas , Titus Pankey, Jr.
Inventor： Richard E. Thomas , Titus Pankey, Jr.
CPC classification number: H01J1/28
Abstract: An emissive member for a controlled-porosity, dispenser-type cathode comping a three-component sandwich consisting of: (1) a supporting disc; (2) a layer of nonsintered alkaline earth material on said disc; and (3) a thin perforated foil on said layer. The foil is made of refractory metal and has a uniform pattern of tiny holes through which the active material of the reservoir migrates to coat the surface of the foil, the foil thus serving as the electron-emitting surface of the cathode.
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公开(公告)号：US3710161A
公开(公告)日：1973-01-09
申请号：US3710161D
申请日：1970-10-30
Applicant: GEN ELECTRIC
Inventor： BEGGS J
Abstract: A quick-heating planar cathode employs a disk of fine mesh wire of refractory metal around which is bonded or sintered a porous layer of tungsten particles impregnated with electron-emissive material, a layer of inorganic insulation covering one surface of the porous cathode, and a heater on the insulating surface.
Abstract translation: 快速加热的平面阴极采用难熔金属细网的圆盘，其上粘合或烧结浸渍有电子发射材料的钨颗粒的多孔层，覆盖多孔阴极的一个表面的无机绝缘层，以及 加热器在绝缘表面上。
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公开(公告)号：US3599031A
公开(公告)日：1971-08-10
申请号：US3599031D
申请日：1970-05-21
Applicant: GEN ELECTRIC
Inventor： BEGGS JAMES E
Abstract: A unitary heater, cathode, and control electrode structure for an electron discharge device is formed by coating a disk of a porous refractory metal with an inorganic insulating layer, overcoating the insulating layer with a film of refractory metal, forming a grid pattern in the film on one side of the disk, forming openings in the film and insulating layer corresponding to the pattern, and impregnating the disk with thermionic emissive material.
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