公开(公告)号：US4137476A

公开(公告)日：1979-01-30

申请号：US798243

申请日：1977-05-18

Applicant: Masaji Ishii ,  Shuzo Watanabe ,  Akira Miyai ,  Hideo Hiraoka

Inventor： Masaji Ishii ,  Shuzo Watanabe ,  Akira Miyai ,  Hideo Hiraoka

IPC: H01J1/13 ,  H01J1/16 ,  H01J19/10

CPC classification number: H01J1/13

Abstract: A thermionic cathode for an electron beam device is provided which comprises a first layer of thermoelectron emissive compound sharpened towards a point, a third layer of metal of high melting point and a second layer of reaction barrier interposed between the first and third layers, current terminals being attached to said third layer. According to the invention, a thermionic cathode capable of emitting stable electron beams of high intensity for a long period of time can be manufactured.

Abstract translation: 提供了一种用于电子束装置的热离子阴极，其包括朝向点锐化的第一层热电子发射化合物，高熔点金属第三层和介于第一和第三层之间的第二反应栅层，电流端子 附着于所述第三层。 根据本发明，可以制造能够长时间发射高强度电子束的热离子阴极。

公开(公告)号：US3663839A

公开(公告)日：1972-05-16

申请号：US3663839D

申请日：1971-02-24

Applicant: NASA

Inventor： DERR LLOYD J ,  TOBIAS ROBERT A

IPC: F03G7/06 ,  H01J1/13 ,  H01J3/02 ,  H02M7/00

CPC classification number: F03G7/06 ,  H01J1/13 ,  H01J3/028

Abstract: An electrically powered actuator for providing a rotational or large linear motion, which is simple and highly reliable, including a bi-metallic strip with a slot extending along its length from one end to a position near the opposite end. In a rotational actuator, the strip is bent into a spiral, with the inner turn fixed to the shaft which is to be rotated and the outer turn fixed to a support and connected to electrical leads. Current passed through the leads and through the slotted strip heats it to make it uncoil or to make it coil further, the several rotations of the strip resulting in a large rotation of the shaft.

Abstract translation: 一种用于提供旋转或大直线运动的电动致动器，其是简单且高度可靠的，包括具有沿其长度从一端延伸到靠近相对端的位置的狭槽的双金属带。 在旋转致动器中，条带被弯曲成螺旋形，内旋转固定到要旋转的轴上，外转圈固定到支撑件并连接到电引线。 通过引线的电流通过开槽带加热，使其开卷或使其进一步盘绕，带的几个旋转导致轴的大的旋转。

公开(公告)号：USRE24879E

公开(公告)日：1960-09-27

申请号：US75583758

申请日：1958-08-13

Applicant: WINSTON CALDWELL

Inventor： WINSTON CALDWELL

IPC: H01J1/13 ,  H01J45/00

CPC classification number: H01J45/00 ,  H01J1/13

公开(公告)号：US2216942A

公开(公告)日：1940-10-08

申请号：US18545538

申请日：1938-01-17

Applicant: ZEISS IKON AG

Inventor： PAUL GORLICH ,  MARTIN PLOKE

IPC: H01J1/13 ,  H01J29/48

CPC classification number: H01J29/485 ,  H01J1/13

公开(公告)号：US1828203A

公开(公告)日：1931-10-20

申请号：US20502427

申请日：1927-07-11

Applicant: RUBEN TUBE COMPANY

Inventor： SAMUEL RUBEN

IPC: H01J1/13

CPC classification number: H01J1/13

公开(公告)号：US1813704A

公开(公告)日：1931-07-07

申请号：US28834828

申请日：1928-06-26

Applicant: WESTINGHOUSE LAMP CO

Inventor： ANTON LEDERER ERNEST

IPC: H01J1/13

CPC classification number: H01J1/13

公开(公告)号：US1667977A

公开(公告)日：1928-05-01

申请号：US8638826

申请日：1926-02-06

Applicant: LUCIAN ARSENE N

Inventor： LUCIAN ARSENE N

IPC: H01J1/13 ,  H01J19/50

CPC classification number: H01J1/13 ,  H01J19/50 ,  H01J2893/0008

公开(公告)号：US258546A

公开(公告)日：1882-05-30

申请号：US258546D

CPC classification number: F02P15/12 ,  H01J1/13