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公开(公告)号：US3766423A
公开(公告)日：1973-10-16
申请号：US3766423D
申请日：1971-12-03
Applicant: ITT
Inventor： MENELLY R
IPC: H01J61/067 , H01J1/14 , H01J1/15 , H01J1/16
CPC classification number: H01J61/067
Abstract: An emissive electrode of the type utilized in fluorescent lamps and a method for making such an electrode. The electrode includes a fused cylindrical pellet and two metal leads, a portion of one of said leads extending within one end of said pellet and a portion of the other of said leads extending within the opposite end of the pellet. The pellet contains a fused mixture of electron emissive material and a metal having a high melting point and a low vapor pressure, and it has a bulk density gradient structure. The heat necessary to cause thermionic electron emission from said electrode is provided by current passing through the pellet structure separating said leads when a voltage is applied across said leads. The pellet is formed by mixing a powder of said metal with a powder of said electron emissive material, adhering said powder particles one to the other, and heating said mixed powder in a mold until an exothermic reaction occurs.
Abstract translation: 用于荧光灯的发射电极和制造这种电极的方法。 电极包括熔融圆柱形颗粒和两个金属引线，一个所述引线的一部分在所述颗粒的一个端部内延伸，另一个所述引线的一部分在颗粒的相对端延伸。 颗粒包含电子发射材料和具有高熔点和低蒸气压的金属的熔融混合物，并且其具有体积密度梯度结构。 当电压跨过所述引线施加电压时，通过电流通过分离所述引线的芯片结构来提供从所述电极引起热离子电子发射所需的热量。 通过将所述金属的粉末与所述电子发射材料的粉末混合，将所述粉末颗粒彼此粘合，并将所述混合粉末在模具中加热直到发生放热反应来形成颗粒。
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Patent Agency Ranking
公开(公告)号：US3837909A
公开(公告)日：1974-09-24
申请号：US27564472
申请日：1972-07-27
Applicant: ITT
Inventor： MENELLY R
IPC: H01J9/04 , H01J61/067 , H01J1/04 , B44D1/02
CPC classification number: H01J61/0677 , H01J9/042
Abstract: A coated coil emissive electrode of the type utilized in fluorescent lamps and a method for making such an electrode. The electrode includes a tungsten coil, a bonding layer of an emissive form of barium tungstate coating said tungsten coil, and a layer of porous barium oxide coating said barium tungstate, said barium tungstate bonding said barium oxide to said tungsten coil. The electrode is made by coating said tungsten coil wuth a mixture of barium peroxide, cellulose nitrate and butyl cellosolve and heating said coated coil to the exothermal decomposition temperature of said cellulose nitrate. The exothermal decompositon of said cellulose nitrate raises the temperature of the barium peroxide to its exothermal decomposition temperature thereby forming said bonding layer of the emissive form of barium tungstate and releasing bubbles of oxygen causing the pores in said barium oxide.
Abstract translation: 在荧光灯中使用的涂覆线圈发射电极和制造这种电极的方法。 所述电极包括钨线圈，涂覆所述钨线圈的发射形式的钨酸钡的结合层和涂覆所述钨酸钡的多孔氧化钡层，所述钡钨酸盐将所述氧化钡粘合到所述钨线圈上。 电极是通过将所述钨线圈浸渍过氧化钡，硝酸纤维素和丁基溶纤剂的混合物并将所述涂覆的线圈加热到所述硝酸纤维素的放热分解温度来制备的。 所述硝酸纤维素硝酸盐的放热分解将过氧化钡的温度升高到其放热分解温度，从而形成钨酸钡的发射形式的所述粘合层并释放氧气，导致所述氧化钡中的孔。
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公开(公告)号：US3758809A
公开(公告)日：1973-09-11
申请号：US3758809D
申请日：1971-12-03
Applicant: ITT
CPC classification number: H01J9/022 , H01J1/30 , H01J17/066 , H01J2893/0066
Abstract: An emissive electrode of the type utilized in fluorescent lamps and a method for making such an electrode. The electrode includes a fused pellet and a metal lead extending from the bottom surface thereof. The pellet contains a fused mixture of electron emissive material and a metal having a high melting point and a low vapor pressure. The pellet has a bulk density gradient structure wherein the interior portions and exterior bottom and side portions thereof have a high bulk density relative to the bulk density of the exterior top portion of the pellet, and the exterior bottom and side surfaces of the pellet are smooth re1ative to the exterior top surface thereof. The pellet is formed by mixing a powder of said metal with a powder of said electron emissive material, compressing said mixed powder and heating it in a mold until an exothermic reaction occurs.
Abstract translation: 用于荧光灯的发射电极和制造这种电极的方法。 电极包括熔融颗粒和从其底表面延伸的金属引线。 颗粒包含电子发射材料和具有高熔点和低蒸气压的金属的熔融混合物。 颗粒具有体积密度梯度结构，其中内部和外部底部和侧部具有相对于颗粒的外部顶部的堆积密度的高堆积密度，并且颗粒的外部底部和侧表面是平滑的 与其外表面相反。 通过将所述金属的粉末与所述电子发射材料的粉末混合，压缩所述混合粉末并在模具中加热，直到发生放热反应来形成颗粒。
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公开(公告)号：US3718831A
公开(公告)日：1973-02-27
申请号：US3718831D
申请日：1972-03-31
Applicant: ITT
IPC: H01J61/067 , H01J1/30 , H01J1/38
CPC classification number: H01J61/067
Abstract: An emissive electrode of the type utilized in fluorescent lamps having a conic section cavity formed therein, said electrode having a bulk density gradient structure. The electrode includes a fused pellet and a metal lead extending therefrom. The pellet contains a fused mixture of electron emissive material and a metal having a high melting point and a low vapor pressure at the operating temperature of the lamp.
Abstract translation: 在其中形成有锥形截面腔室的荧光灯中使用的发射电极，所述电极具有体积密度梯度结构。 电极包括熔融颗粒和从其延伸的金属引线。 颗粒包含电子发射材料和在灯的工作温度下具有高熔点和低蒸气压的金属的熔融混合物。
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公开(公告)号：US3842469A
公开(公告)日：1974-10-22
申请号：US38983373
申请日：1973-08-20
Applicant: ITT
Inventor： MENELLY R
Abstract: A method of treating metal oxide semiconductor electrodes of the type utilized in fluorescent lamps to increase their electron emissivity and to lower their ignition voltage. The electrodes are heated in the absence of air to render them oxygen deficient and then cooled before exposure to air.
Abstract translation: 一种处理在荧光灯中使用的类型的金属氧化物半导体电极以增加其电子发射率并降低其点火电压的方法。 电极在不存在空气的情况下加热，使其氧气不足，然后在暴露于空气之前冷却。
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公开(公告)号：US3798492A
公开(公告)日：1974-03-19
申请号：US3798492D
申请日：1971-12-08
Applicant: ITT
Inventor： MENELLY R
CPC classification number: H01J9/022 , H01J1/30 , H01J17/066 , H01J2893/0066
Abstract: An emissive electrode of the type utilized in fluorescent lamps having a bulk density gradient structure and a method for making such an electrode. A powder of a metal having a high melting point and a low vapor pressure is mixed with an electron emissive material, compressed, and heated until an exothermic reaction occurs. The interior of the resultant fused material electrode has a high density relative to the surface thereof.
Abstract translation: 用于具有体积密度梯度结构的荧光灯中的类型的发射电极和用于制造这种电极的方法。 将具有高熔点和低蒸气压的金属粉末与电子发射材料混合，压缩并加热直到发生放热反应。 所得熔融材料电极的内部相对于其表面具有高密度。
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