公开(公告)号：US4012659A

公开(公告)日：1977-03-15

申请号：US645486

申请日：1975-12-31

Applicant: Edmund M. Passmore ,  George L. Duggan ,  Warren A. Anderson ,  William M. Labadini

Inventor： Edmund M. Passmore ,  George L. Duggan ,  Warren A. Anderson ,  William M. Labadini

IPC: H01K1/14 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01K1/14

Abstract: The tungsten wire filament of an incandescent lamp is flashed to a recrystallized structure by applying pulses of electrical energy thereto.

Abstract translation: 通过向其施加电能脉冲将白炽灯的钨丝灯丝闪烁成再结晶结构。

公开(公告)号：US3800378A

公开(公告)日：1974-04-02

申请号：US3800378D

申请日：1972-06-07

Applicant: RCA CORP

Inventor： LEE R ,  BAZARIAN A

IPC: H01J1/16 ,  H01J9/38

CPC classification number: H01J1/16

Abstract: A directly-heated cathode having a very short warm-up time comprising a tubular sheet of refractory metal having an array of apertures therein defined by a grid of intersecting filaments. The filament grid may be integral with spaced end sections of the sheet, the end sections serving as heat-dam and top-cap sections of the cathode. Also included is a method of making such a cathode comprising etching the apertures in a refractory metal sheet.

Abstract translation: 具有非常短的预热时间的直接加热的阴极包括管状的难熔金属板，其具有由相交的细丝的网格限定的孔阵列。 灯丝栅格可以与片材的间隔端部成一体，端部用作阴极的热坝和顶帽部分。 还包括制造这种阴极的方法，包括蚀刻耐火金属片中的孔。

公开(公告)号：US3778664A

公开(公告)日：1973-12-11

申请号：US3778664D

申请日：1972-12-22

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： PETRO J ,  RIVELY C

IPC: H01J9/04 ,  H01J61/067 ,  H01K3/02 ,  H01K3/04 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01J61/067 ,  H01J9/04 ,  H01K3/02 ,  H01K3/04

Abstract: The tangling of helically coiled wire articles during bulk handling and shipment is prevented by providing integral beads of fused metal at each end of the articles which enclose the severed ends of the wire. In the case of tungsten wire coils that are designed for use in fluorescent or incandescent lamps and similar devices and are wound on iron mandrels, the fused beads are composed of tungsten-iron alloy and are formed in situ during coil manufacture by melting the ends of the mandrel with a concentrated heat source such as a focused laser beam. The tungsten-iron alloy beads remain on the end turns of the coil during the subsequent mandrel-dissolving operation, are ductile and are formed without embrittling the tungsten wire. Various methods and apparatus embodiments for manufacturing such beaded-end coils on a mass production basis using a CO2 laser are disclosed. Since the beads can readily be made larger than the diameter of the coil and be spaced a predetermined distance apart, they provide built-in guides or ''''reference points'''' for mounting incandescent lamp type filament coils on their lead wires and thus accurately controlling the lighted-length of the mounted coils.

Abstract translation: 在散装处理和运输过程中螺旋卷绕的线制品的缠结通过在物品的每个端部处提供一体的金属熔合金属珠来防止，这些金属物质围绕电线的切断端部。 在设计用于荧光灯或白炽灯和类似装置并被缠绕在铁芯上的钨丝线圈的情况下，熔融珠由钨 - 铁合金组成，并且在线圈制造期间通过熔化端 具有集中热源的心轴，例如聚焦激光束。 在随后的芯棒溶解操作期间，钨 - 铁合金珠保持在线圈的端匝上，是延展性的并且不会使钨丝脆化而形成。

公开(公告)号：US3755705A

公开(公告)日：1973-08-28

申请号：US3755705D

申请日：1972-01-31

Applicant: PHILIPS CORP

Inventor： ZWANENBURG G

IPC: H01J1/16 ,  H01J37/065 ,  H01J1/15 ,  H01J19/08

CPC classification number: H01J37/065 ,  H01J1/16

Abstract: A cavity is provided in a wire of a directly-heated cathode so that the temperature at the area of the cavity will be higher when a current is passed through the wire than on either side of the cavity. As a result, the cavity acts as a limited emissive surface and the cathode obtains a longer service life and a more stable construction.

Abstract translation: 在直接加热的阴极的线材中设置空腔，使得当电流通过电线时，空腔区域的温度将高于空腔的任一侧。 结果，空腔充当有限的发射表面，阴极获得更长的使用寿命和更稳定的结构。

公开(公告)号：US3725720A

公开(公告)日：1973-04-03

申请号：US3725720D

申请日：1972-07-12

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： PETRO J ,  RIVELY C

IPC: H01K1/16 ,  H01J1/16 ,  H01J19/06 ,  H01J19/10

CPC classification number: H01K1/16

Abstract: The coiled tungstem filament of an electric incandescent lamp is provided with a fused bead of tungsten-iron alloy at each end and is so fastened to the lead wires of the mount assembly that the beads are located outboard from and in contiguous relationship with the respective lead wires. The beads are larger than the diameter of the filament coil and spaced a predetermined distance apart and thus serve as built-in guides or ''''reference points'''' during the filament-mounting operation which accurately control the lighted-length of the mounted coils.

Abstract translation: 电白炽灯的盘绕钨丝在每端设置有钨 - 铁合金熔融珠，并且被固定到安装组件的引线上，珠的位置与相应的引线外侧连续关系 电线 珠子比丝线圈的直径大，并隔开预定的距离，因此在灯丝安装操作期间用作内置导向件或“参考点”，其精确地控制安装的线圈的点火长度。

公开(公告)号：US3671798A

公开(公告)日：1972-06-20

申请号：US3671798D

申请日：1970-12-11

Applicant: NASA

Inventor： LEES WAYNE L

IPC: H01J1/304 ,  H01J19/40 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01J19/40 ,  H01J1/3042

Abstract: Self-protected electrodes which inherently limit field-emitted currents to a safe value and also stabilize such currents are disclosed. The electrodes are characterized by a plurality of columnar conductors connected at one end to a common potential source. The electrodes are insulated from one another along their lengths whereby the effective or exposed surfaces thereof are subdivided into a mosaic of conducting patches which are insulated from one another.

Abstract translation: 公开了自保护电极，其固有地将场发射电流限制到安全值并且还稳定这种电流。 电极的特征在于在一端连接到公共电位源的多个柱状导体。 电极沿它们的长度彼此绝缘，由此有效或暴露的表面被细分成彼此绝缘的导电贴片的马赛克。

公开(公告)号：US3567989A

公开(公告)日：1971-03-02

申请号：US3567989D

申请日：1968-10-25

Applicant: JAPAN RADIO CO LTD

Inventor： KOSHIZUKA MICHIO ,  UNO HIDEO

IPC: H01J1/20 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01J1/20

Abstract: A cathode structure of substantially uniform thickness exhibiting reduced heating time in an electron tube having a mesh grid, the cathode comprising a mesh portion consisting of substantially flat cross-strips and a number of depressed portions formed between the cross-strips, the depressed portions being coated with an electronic emissive material.

公开(公告)号：US3566179A

公开(公告)日：1971-02-23

申请号：US3566179D

申请日：1968-06-20

Applicant: AMERICAN MICROWAVE INC

Inventor： KUMPFER BEVERLY D

IPC: H01J1/15 ,  H01J1/16 ,  H01J1/20 ,  H01J19/14

CPC classification number: H01J1/15 ,  H01J1/16

Abstract: The present invention comprises new and useful cathode and heater constructions and assemblies for electron discharge devices, particularly vacuum tubes. The cathode or heater is mounted at both ends to the interior structure of the electron discharge device and, in a preferred form of the invention, is pressed over a pair of bosses which are integral with heat sinks comprising opposite ends of the device. The materials of these bosses and the cathode or heater are so chosen that the coefficient of thermal expansion of the bosses is greater than that of the material of the cathode or heater. In this way, operating temperatures do not reduce, but rather, increase the securement of opposite ends of the cathode or heater to the respective mounting bosses.

公开(公告)号：US2790924A

公开(公告)日：1957-04-30

申请号：US37067453

申请日：1953-07-28

Applicant: MACHLETT LAB INC

Inventor： SKEHAN JOSEPH W

IPC: H01J1/16

CPC classification number: H01J1/16

公开(公告)号：US2653267A

公开(公告)日：1953-09-22

申请号：US23260251

申请日：1951-06-20

Applicant: HIGH VOLTAGE ENGINEERING CORP

Inventor： MCINTOSH LLOYD R

IPC: C12M1/20 ,  H01J1/16

CPC classification number: H01J1/16