公开(公告)号：US3737711A

公开(公告)日：1973-06-05

申请号：US3737711D

申请日：1968-11-21

Applicant: VARIAN ASSOCIATES

Inventor： POLESE J

IPC: H01J1/88 ,  H01J1/15 ,  H01J9/04 ,  H01J19/34 ,  H01J19/42 ,  H01J1/18 ,  H01J1/90 ,  H01J9/18

CPC classification number: H01J19/34 ,  H01J19/42 ,  H01J2893/0003 ,  H01J2893/0005

Abstract: An electron tube is disclosed comprising an evacuated envelope enclosing at least three cylindrical electrodes including a directly heated cathode, a grid and an anode. Cathode support means are disclosed comprising a generally cylindrical, metallic stem, a hollow, metallic support cylinder electrically connected to the cathode and coaxially situated about at least a portion of the stem in spaced relation therewith, and two dielectric annuli interposed between the stem and cylinder in abutment therewith.

Abstract translation: 公开了一种电子管，其包括包围至少三个圆柱形电极的真空包络体，包括直接加热的阴极，栅极和阳极。 公开了阴极支撑装置，其包括大致圆柱形的金属杆，中空的金属支撑圆柱体，其电连接到阴极并且同轴地位于杆的至少一部分上与其间隔开的关系，以及介于杆和圆柱体之间的两个介电环 与其抵接。

公开(公告)号：US3820206A

公开(公告)日：1974-06-28

申请号：US29321672

申请日：1972-09-28

Applicant: VARIAN ASSOCIATES

Inventor： POLESE J

IPC: H01J19/34 ,  H01J19/42 ,  H01J9/18

CPC classification number: H01J19/34 ,  H01J19/42 ,  H01J2893/0003 ,  H01J2893/0005 ,  Y10T29/4976 ,  Y10T29/49863

Abstract: AN ELECTRON TUBE IS DISCLOSED COMPRISING AN EVACUATED ENVELOPE ENCLOSING AT LEAST THREE CYLINDRICAL ELECTRODES INCLUDING A DIRECTLY HEATED CATHODE, A GRID AND AN ANODE. CATHODE SUPPORT MEANS ARE DISCLOSED COMPRISING A GENERALLY CYLINDRICAL, METALLIC STEM, A HOLLOW, METALLIC SUPPORT CYLINDER ELECTRICALLY CONNECTED TO THE CATHODE AND COAXIALLY SITUATED ABOUT AT LEAST A PORTION OF THE STEM IN SPACED RELATION THEREWITH, AND TWO DIELECTRIC ANNULI INTERPOSED BETWEEN THE STEM AND CYLINDER IN ABUTMENT THEREWITH. A METHOD OF MAKING THE JUST DESCRIBED CATHODE SUPPORT MEANS, IN WHICH THE STEM AND SUPPORT CYLINDER HAVE A COPLANAR STEP, IS ALSO DISCLOSED COMPRISING THE STEPS OF PLACING A DIELECTRIC ANNULUS HAVING A COEFFICIENT OF THERMAL EXPANSION LESS THAN THE METALLIC STEM AND CYLINDER ON THE COPLANAR STEPS WITH THE INNER SURFACE OF THE ANNULUS IN ABUTMENT WITH THE CYLINDRICAL STEM AND THE OUTER SURFACE OF THE ANNULUS IN ABUTMENT WITH THE HOLLOW SUPPORT CYLINDER, THE STEM AND CYLINDER THEREBY OCCUPYING A FIRST POSITION WITH RESPECT TO THE DIELECTRIC ANNULUS. TWO METALLIC RINGS ARE THEN PLACED UPON THE ANNULUS WITH ONE RING IN ABUTMENT WITH THE CYLINDRICAL STEM AND THE OTHER RING IN ABUTMENT WITH THE HOLLOW SUPPORT CYLINDER. MECHANICAL FORCE IS THEN APPLIED TO THE TWO METALLIC RINGS TO PUSH THEM FIRMLY AGAINST THE DIELECTRIC ANNULUS. THE ELECTRON TUBE IS THEN HEATED CAUSING THE METALLIC STEM AND CYLINDER TO EXPAND AND MOVE WITH RESPECT TO THE DIELECTRIC ANNULUS AND RINGS TO A SECOND POSITION WITH RESPECT THERETO. THE METALLIC RING IN ABUTMENT WITH THE STEM IS BRAZED THERETO AT THE SECOND POSITION, AND THE METALLIC RING IN ABUTMENT WITH THE CYLINDER IS BRAZED THERETO AT THE SECOND POSITION. THE ELECTRON TUBE IS THEN COOLED CAUSING THE STEM AND CYLINDER TO RETURN TO THEIR FIRST POSITION WITH THE DIELECTRIC ANNULUS COMPRESSED BETWEEN THE CONVERGING RINGS AND STEPS AND LOCKED SECURELY TO THE STEM AND CYLINDER. THE MECHANICAL FORCE IS THEN REMOVED FROM THE METALLIC RINGS.

公开(公告)号：US3824424A

公开(公告)日：1974-07-16

申请号：US34505273

申请日：1973-03-26

Applicant: VARIAN ASSOCIATES

Inventor： MC NEES S ,  POLESE J

IPC: H01J1/15 ,  H01J19/34 ,  H01J19/08 ,  H01K1/02

CPC classification number: H01J1/15 ,  H01J19/34 ,  H01J2893/0003

Abstract: First and second sets of thermionic cathode emitter filaments are wound into a composite cross-wound helical cathode emitter structure. The helical cathode emitting structure is supported at opposite ends by means of electrical terminals for passing electrical current through the cross-wound filaments. At one end of the composite mesh, the filaments have inwardly directed terminal portions terminating on the terminal support structure, whereby the inwardly directed terminal portions of the filaments permit a certain degree of flexibility to accommodate unequal thermal expansion of the support and mesh and whereby the cooling effect of the terminal structure is generally limited to the inwardly directed terminal portions of the filaments. The terminal structure also includes flexible support fingers to further accommodate unequal thermal expansion.

Abstract translation: 第一组和第二组热离子阴极发射极细丝缠绕成复合交叉卷绕螺旋阴极发射极结构。 螺旋阴极发射结构通过用于使电流通过交叉缠绕细丝的电端子在相对端处被支撑。 在复合网格的一端，细丝具有终止在端子支撑结构上的向内指向的末端部分，由此长丝的向内指向的末端部分允许一定程度的柔性以适应支撑和网状物的不相等的热膨胀， 端子结构的冷却效果通常限于长丝的向内指向的末端部分。 端子结构还包括柔性支撑指，以进一步适应不相等的热膨胀。

公开(公告)号：US3826948A

公开(公告)日：1974-07-30

申请号：US35730373

申请日：1973-05-04

Applicant: VARIAN ASSOCIATES

Inventor： POLESE J ,  MC NEES S

IPC: H01J19/34 ,  H01J19/50 ,  H01J1/46 ,  H01J21/10

CPC classification number: H01J19/34 ,  H01J19/50 ,  H01J2893/0003 ,  H01J2893/0008

Abstract: In a coaxial power grid tube, the control grid lead passes into the envelope of the tube coaxially of and within the cathode lead structure. A cross-over structure is provided within the envelope for passing the control grid structure through the cathode lead structure in insulative relation thereto. The cathode lead structure includes a pair of concentric radially spaced cylinders (double wall) connected together for applying potential to one end of a directly heated thermionic cathode emitter, whereas the other lead for the cathode emitter is disposed in insulative relation within the interior of the double wall cathode lead structure for completely shielding the internal cathode lead from RF energy present in either the grid drive or output RF circuits of the tube.

Abstract translation: 在同轴电网管中，控制栅极引线进入与阴极引线结构同轴并且位于阴极引线结构内的管的外壳。 在外壳内提供交叉结构，以使控制栅格结构以绝缘关系传递通过阴极引线结构。 阴极引线结构包括一对连接在一起的同心径向隔开的气缸（双壁），用于将电位施加到直接加热的热离子阴极发射体的一端，而阴极发射体的另一个引线以绝缘关系设置在 双壁阴极引线结构，用于完全屏蔽内部阴极引线与存在于管的栅极驱动器或输出RF电路中的RF能量。