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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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22.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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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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Patent Agency Ranking
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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公开(公告)号：US3441780A
公开(公告)日：1969-04-29
申请号：US3441780D
申请日：1967-03-22
Applicant: SIEMENS AG
Inventor： HINKELDEY ARNO
CPC classification number: H01J1/28
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公开(公告)号：US3404034A
公开(公告)日：1968-10-01
申请号：US68337867
申请日：1967-11-15
Applicant: BELL TELEPHONE LABOR INC
Inventor： MAURER DEAN W , PLEASS CHARLES M
IPC: C23C16/442 , H01J1/14 , H01J1/28 , H01J9/04
CPC classification number: H01J1/28 , B22F2998/00 , C23C16/442 , H01J1/14 , H01J9/042 , B22F1/025
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公开(公告)号：US3284657A
公开(公告)日：1966-11-08
申请号：US28515063
申请日：1963-06-03
Applicant: VARIAN ASSOCIATES
Inventor： IRA WEISSMAN
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