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    Cathode design
    4.
    发明授权
    Cathode design 有权
    阴极设计

    公开(公告)号：US06771014B2

    公开(公告)日：2004-08-03

    申请号：US09949480

    申请日：2001-09-07

    Applicant: Robert T. Longo ,  Elmer E. Reed, Jr. ,  David W. Precht

    Inventor： Robert T. Longo ,  Elmer E. Reed, Jr. ,  David W. Precht

    IPC: H01J2946

    CPC classification number: H01J1/28 ,  H01J9/047

    Abstract: A cathode system includes an impregnated pellet and a conductive cup, which has substantially cylindrical sides. The conductive cup has an open end sized to receive the impregnated pellet and a closed end. The closed end has an internal surface and an external surface. The cathode system also includes a second conductive cup. The second conductive cup also has substantially cylindrical sides, an open end and a closed end. The cathode system further includes a similar third conductive cup. The three conductive cups are electrically coupled together. For construction of the cathode, the first conductive cup receives the impregnated pellet following coupling of the three conductive cups.

    Abstract translation: 阴极系统包括浸渍的颗粒和具有基本圆柱形侧面的导电杯。 导电杯具有开口端尺寸以容纳浸渍的颗粒和封闭端。 封闭端具有内表面和外表面。 阴极系统还包括第二导电杯。 第二导电杯还具有基本上圆柱形的侧面，开口端和封闭端。 阴极系统还包括类似的第三导电杯。 三个导电杯电耦合在一起。 为了构造阴极，第一导电杯在三个导电杯的联接之后接收浸渍的颗粒。

    Impregnated cathode structure and method of manufacturing the structure
    5.
    发明申请
    Impregnated cathode structure and method of manufacturing the structure 审中-公开
    浸渍阴极结构及其制造方法

    公开(公告)号：US20030034724A1

    公开(公告)日：2003-02-20

    申请号：US10204945

    申请日：2002-08-27

    Inventor： Daichi Imabayashi

    IPC: H01J019/02 ,  H01J009/02

    CPC classification number: H01J1/28 ,  H01J9/047 ,  Y10T29/49002

    Abstract: An impregnated type cathode unit and a manufacturing method therefor wherein a porous metal base and a cup member can be firmly joined together without using any interposition and the occurrence of weld defects can be eliminated to improve the reliability and yield of welding between the porous metal base and the cup member. The impregnated type cathode unit is composed of a porous metal base (11) impregnated with an electron emissive material and a cup member (12) for holding the porous metal base (11) so as to cover the bottom surface and side surface of the porous metal base (11) and expose the front surface of the porous metal base (11). A nonporous dense portion (14) is formed on the bottom surface of the porous metal base (11). The bottom portion of the cup member (12) is pressed to be deformed so as to follow the shape of the dense portion (14), thereby forming a close contact region (16). The bottom portion of the cup member (12) and the dense portion (14) of the porous metal base (11) are welded together at the close contact region (16).

    Abstract translation: 一种浸渍型阴极单元及其制造方法，其中多孔金属基底和杯形构件可以牢固地接合在一起而不需要任何插入，并且可以消除焊接缺陷的发生，从而提高多孔金属基底之间的焊接的可靠性和产量 和杯子。 浸渍型阴极单元由浸渍有电子发射材料的多孔金属基底（11）和用于保持多孔金属基底（11）的杯状构件（12）构成，以覆盖多孔金属基底的底表面和侧表面 金属基体（11）并露出多孔金属基底（11）的前表面。 在多孔金属基体（11）的底面形成无孔致密部（14）。 杯部件（12）的底部被按压以使其跟随致密部分（14）的形状变形，从而形成紧密接触区域（16）。 杯状构件（12）的底部和多孔金属基底（11）的致密部分（14）在紧密接触区域（16）处焊接在一起。

    Impregnated cathode and method for manufacturing the same
    7.
    发明授权
    Impregnated cathode and method for manufacturing the same 失效
    浸渍阴极及其制造方法

    公开(公告)号：US06376975B1

    公开(公告)日：2002-04-23

    申请号：US09110792

    申请日：1998-07-06

    Applicant: Satoru Nakagawa

    Inventor： Satoru Nakagawa

    IPC: H01J114

    CPC classification number: H01J9/047 ,  H01J1/28 ,  H01J9/042

    Abstract: An impregnated cathode whose initial electron emitting performance, lifetime property, and insulating property for an electron gun are excellent and that is suitable for mass production, and a method for manufacturing the same. In the impregnated cathode, the porosity of the sintered body of porous metal is continuously increased as the distance in the depth direction from an electron emitting face is increased. A pellet of sintered body of metal raw material has pores in it. The pores are filled with electron emitting material. The porosity is continuously increased as the distance in the depth direction from an electron emitting face is increased. Thus, since the discontinuity inside the pellet is not formed, a reaction generating free Ba continuously and smoothly proceeds on the entire pellet. In addition, since raw material powder having more than one kind of particle size is not necessary to be used, the manufacturing process can be simplified. Moreover, various functions such as lifetime property, etc. can be improved by making the porosity and porosity distribution in a certain range.

    Abstract translation: 其电子枪的初始电子发射性能，寿命特性和绝缘性能优异且适合于批量生产的浸渍阴极及其制造方法。 在浸渍的阴极中，随着电子发射面的深度方向的距离增加，多孔金属的烧结体的孔隙率不断增加。 金属原料烧结体的颗粒中有孔。 孔被电子发射材料填充。 随着距离电子发射面的深度方向的距离增加，孔隙率不断增加。 因此，由于不形成丸粒内部的不连续性，因此在整个丸粒上连续且平稳地进行产生游离Ba的反应。 此外，由于不需要使用具有多种粒径的原料粉末，因此可以简化制造工艺。 此外，通过使孔隙率和孔隙率分布在一定范围内，可以改善诸如寿命性质等各种功能。

    Impregnated cathode structure for a CRT and its manufacturing method
    8.
    发明授权
    Impregnated cathode structure for a CRT and its manufacturing method 失效
    CRT的浸渍阴极结构及其制造方法

    公开(公告)号：US06252342B1

    公开(公告)日：2001-06-26

    申请号：US09200193

    申请日：1998-11-25

    Applicant: Seung Yul Lee ,  Ji Hong Lee ,  Jae Dong Park

    Inventor： Seung Yul Lee ,  Ji Hong Lee ,  Jae Dong Park

    IPC: H01J128

    CPC classification number: H01J9/047 ,  H01J1/28

    Abstract: Disclosed is an impregnated cathode structure for a cathode ray tube and its manufacturing method, in which electron emitting material impregnated in a pellet is free from an effect of the welding heat generated when the pellet is secured to a heater sleeve. The impregnated cathode structure has a pellet assembly including a pellet and a pellet fixing sheet. The pellet is attached to a first surface of the pellet fixing sheet, which has a plurality of protuberances. The pellet is manufactured by pressing and sintering, and impregnating electron emitting material into the porous of the pellet. The pellet sleeve is inserted in and welded to a heater sleeve. A heater sleeve is welded to a second surface of the pellet fixing sheet, which is opposite to the first surface.

    Abstract translation: 公开了一种用于阴极射线管的浸渍阴极结构及其制造方法，其中浸渍在颗粒中的电子发射材料不受到当颗粒固定在加热套上时产生的焊接热的影响。 浸渍的阴极结构具有包括颗粒和颗粒固定片的颗粒组件。 该颗粒附着在具有多个突起的颗粒固定片的第一表面上。 颗粒通过压制和烧结制造，并将电子发射材料浸渍到颗粒的多孔中。 将颗粒套筒插入并焊接到加热器套筒上。 加热套管焊接在与第一表面相对的颗粒固定片的第二表面上。

    Thermionic cathode using oxygen deficient and fully oxidized material for high electron density emissions
    9.
    发明授权
    Thermionic cathode using oxygen deficient and fully oxidized material for high electron density emissions 失效
    使用氧缺乏和完全氧化的材料用于高电子密度排放的热阴极

    公开(公告)号：US5828164A

    公开(公告)日：1998-10-27

    申请号：US647502

    申请日：1996-05-14

    Applicant: Louis E. Branovich ,  Donald W. Eckart ,  Paul Fischer

    Inventor： Louis E. Branovich ,  Donald W. Eckart ,  Paul Fischer

    IPC: H01J1/28 ,  H01J9/04 ,  H01J1/14 ,  H01J19/06 ,  H01K1/04

    CPC classification number: H01J9/047 ,  H01J1/28

    Abstract: A method is provided of preparing an impregnated cathode with enhanced thionic emission from a porous billet by impregnating the billed with a suitable impregnant in the presence of an oxygen deficient compound. Additives such as Ir, Os, and Rh react in such a way as to increase emission by reacting to generate oxygen deficient compounds such as WO.sub.2. Moreover, intermediate oxygen sufficient products formed in the chemical reactions can be used as impregnants providing they generate oxygen deficient compounds in the presence of the active emissive material.

    Abstract translation: 提供了一种通过在缺氧化合物的存在下浸渍用合适的浸渍剂进行浸渍来制备具有来自多孔坯料的增强的热离子发射的浸渍阴极的方法。 添加剂如Ir，Os和Rh以这样的方式进行反应，即通过反应产生缺氧化合物如WO2来增加排放。 此外，在化学反应中形成的中间氧足够的产物可用作浸渍剂，只要它们在活性发射材料存在下产生缺氧化合物即可。

    Cathode impregnated by an electron emissive substance comprising (PBAO.QCAO).NBAA1204, where P>1, Q>0, N>1
    10.
    发明授权
    Cathode impregnated by an electron emissive substance comprising (PBAO.QCAO).NBAA1204, where P>1, Q>0, N>1 失效
    包含（PBAO.QCAO）.NBAA1204的电子发射物质浸渍的阴极，其中P> 1，Q> 0，N> 1

    公开(公告)号：US5306189A

    公开(公告)日：1994-04-26

    申请号：US947413

    申请日：1992-09-18

    Applicant: Toshikazu Sugimura ,  Maki Narita

    Inventor： Toshikazu Sugimura ,  Maki Narita

    IPC: H01J1/28 ,  H01J1/30 ,  H01J9/04

    CPC classification number: H01J1/28 ,  H01J1/30 ,  H01J9/042

    Abstract: An impregnated cathode including an electron emissive substance in a porous matrix of a metal having a high melting point and a heat resistive property, is manufactured by mixing (S2) powder of the metal and the electron emissive substance in a dry state into cathode forming powder, press-shaping (S3) the cathode forming powder into a shaped body, sealing (S4) the shaped body in a reaction vessel to provide a sealed vessel, and subjecting (S5) the shaped body in the sealed vessel to a hot isostatic press (HIP) to provide a sintered body of the cathode forming powder, wherein the substance comprises a barium aluminate compound represented by a chemical formula of:(pBaO.qCaO).nBaAl.sub.2 O.sub.4,where p represents an integer which is not less than one, q representing an integer which is not less than zero, n representing an integer which is not less than one. Preferably, the HIP is carried out at a temperature between 900.degree. C. and 1400.degree. C. for twenty minutes with the sealed vessel placed in an argon atmosphere of 1500 atmospheres. The cathode preferably includes the substance in a ratio which is greater than 5.7% by weight and is not greater than 13.8% by weight.

    Abstract translation: 通过将（S2）金属粉末和电子发射物质（S2）混合成阴极形成粉末（S2），制造具有高熔点和耐热性的金属的多孔基体中的电子发射物质的浸渍阴极 ，将阴极形成粉末压成型（S3）成型体，将反应容器内的成形体密封（S4），以提供密封容器，并将密封容器中的成形体（S5）（S5）加热至等静压机 （HIP）以提供阴极形成粉末的烧结体，其中该物质包含由以下化学式表示的铝酸钡化合物：（pBaO.qCaO）·nBaAl2O4，其中p表示不小于1的整数，q 表示不小于零的整数，n表示不小于1的整数。 优选地，将HIP在900℃至1400℃的温度下进行20分钟，同时将密封容器置于1500个大气压的氩气气氛中。 阴极优选包含大于5.7重量％且不大于13.8重量％的比例的物质。

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