公开(公告)号：US2149658A

公开(公告)日：1939-03-07

申请号：US6855836

申请日：1936-03-12

Applicant: TUNGSTEN ELECTRODEPOSIT CORP

Inventor： HOWARD ARMSTRONG HARRY ,  BURLEY MENEFEE ARTHUR

IPC: H01J5/08 ,  H01J19/30

CPC classification number: H01J5/08 ,  H01J19/30 ,  H01J2893/002

公开(公告)号：US2120561A

公开(公告)日：1938-06-14

申请号：US70710634

申请日：1934-01-18

Applicant: EISLER ELECTRIC CORP

Inventor： LAISE CLEMENS A ,  JACOB KURTZ

IPC: H01J19/30

CPC classification number: H01J19/30 ,  H01J2893/002 ,  Y10S428/925 ,  Y10S428/939 ,  Y10T428/12347 ,  Y10T428/12583 ,  Y10T428/1291

公开(公告)号：US2015424A

公开(公告)日：1935-09-24

申请号：US62490932

申请日：1932-07-26

Applicant: FORST ALBERT C

Inventor： FORST ALBERT C

IPC: H01J19/30

CPC classification number: H01J19/30 ,  H01J2893/002

公开(公告)号：US1947417A

公开(公告)日：1934-02-13

申请号：US59592832

申请日：1932-02-29

Applicant: GILLES HOLST

Inventor： GILLES HOLST

IPC: H01J5/04 ,  H01J5/42 ,  H01J19/28 ,  H01J19/30 ,  H01J35/08

CPC classification number: H01J35/08 ,  H01J5/04 ,  H01J5/42 ,  H01J19/28 ,  H01J19/30 ,  H01J2893/0013 ,  H01J2893/002 ,  H01J2893/0034

公开(公告)号：US1760526A

公开(公告)日：1930-05-27

申请号：US34050529

申请日：1929-02-16

Applicant: WESTINGHOUSE LAMP CO

Inventor： CLAYTON RENTSCHLER HARVEY

IPC: H01J19/30

CPC classification number: H01J19/30 ,  H01J2893/002

公开(公告)号：US1681149A

公开(公告)日：1928-08-14

申请号：US10834626

申请日：1926-05-11

Applicant: PHILIPS NV

Inventor： GILLES HOLST

IPC: H01J19/30

CPC classification number: H01J19/30 ,  H01J2893/002

公开(公告)号：US3604970A

公开(公告)日：1971-09-14

申请号：US3604970D

申请日：1968-10-14

Applicant: VARIAN ASSOCIATES

Inventor： CULBERTSON ROBERT D ,  MCRAE RUSSELL C ,  MEYN HAROLD P

IPC: H01J19/30 ,  H01J43/00

CPC classification number: H01J19/30 ,  H01J2893/002 ,  Y10S428/934 ,  Y10T428/12056 ,  Y10T428/12111 ,  Y10T428/12139 ,  Y10T428/12674 ,  Y10T428/12778 ,  Y10T428/12812

Abstract: A nonemissive electrode structure is disclosed together with a method for fabricating same. The nonelectron emissive electrode structure includes a core member which may be made of any one of a number of different metals such as molybdenum, copper, tantalum or tungsten. A nonelectron emissive material is deposited over the core metal. The nonemissive deposited layer may be any one of a number of different materials which will provide electron emission inhibiting characteristics in the presence of surface contamination by barium and/or strontium. Examples of such electron emission inhibiting materials include titanium, chromium, zirconium, or silicon. An outer coating of carbon is formed over the emission inhibiting layer to further enhance the nonelectron emissive characteristics of the electrode. Alternatively, the nonemissive deposited layer and carbon coating may be codeposited into a single covering layer deposited over the core material. The electrode structure is especially suitable as a grid structure in an electron discharge device employing either an oxide coated cathode or a dispenser cathode of the type containing barium and/or strontium.

公开(公告)号：US3590308A

公开(公告)日：1971-06-29

申请号：US3590308D

申请日：1969-04-01

Applicant: RCA CORP

Inventor： DECKERT JANET L

IPC: H01J1/38 ,  H01J19/30 ,  H01J1/05 ,  H01J1/14

CPC classification number: H01J19/30 ,  H01J2893/002

Abstract: In high voltage electron tubes, such as type RCA 6BK4, comprising a cathode, and an open-ended tubular anode including an electron receiving target within the anode tubulation, the target is made from a refractory metal such as molybdenum or tantalum, coated with chromium.

公开(公告)号：US3524098A

公开(公告)日：1970-08-11

申请号：US3524098D

申请日：1968-05-13

Applicant: MACHLETT LAB INC

Inventor： KIRKENDALL THOMAS D ,  VARADI PETER F

IPC: H01J19/30 ,  H01J19/34 ,  H01J1/05 ,  H01J1/14 ,  H01J1/38

CPC classification number: H01J19/30 ,  H01J19/34 ,  H01J2893/0003 ,  H01J2893/002

公开(公告)号：US3397338A

公开(公告)日：1968-08-13

申请号：US43517865

申请日：1965-02-25

Applicant: SIEMENS AG

Inventor： FRIEDRICH ELSAS ADOLF

IPC: H01J19/30 ,  H01J35/10

CPC classification number: H01J35/10 ,  H01J19/30 ,  H01J2893/002