GB1205321A – Improvements in or relating to electrical discharge tubes
– Google Patents
GB1205321A – Improvements in or relating to electrical discharge tubes
– Google Patents
Improvements in or relating to electrical discharge tubes
Info
Publication number
GB1205321A
GB1205321A
GB357/68A
GB35768A
GB1205321A
GB 1205321 A
GB1205321 A
GB 1205321A
GB 357/68 A
GB357/68 A
GB 357/68A
GB 35768 A
GB35768 A
GB 35768A
GB 1205321 A
GB1205321 A
GB 1205321A
Authority
GB
United Kingdom
Prior art keywords
discharge tubes
relating
electrical discharge
weight
jan
Prior art date
1967-01-04
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB357/68A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1967-01-04
Filing date
1968-01-03
Publication date
1970-09-16
1968-01-03
Application filed by Siemens AG
filed
Critical
Siemens AG
1970-09-16
Publication of GB1205321A
publication
Critical
patent/GB1205321A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
H01J19/28—Non-electron-emitting electrodes; Screens
H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J2893/00—Discharge tubes and lamps
H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
H01J2893/0012—Constructional arrangements
H01J2893/0019—Chemical composition and manufacture
H01J2893/002—Chemical composition and manufacture chemical
Abstract
1,205,321. Electrode materials. SIEMENS A.G. 3 Jan., 1968 [4 Jan., 1967], No. 357/68. Heading H1D. A grid electrode, for use in discharge tubes having a thorium cathode, such as transmitter tubes, is formed of a refractory metal, e.g. Mo or Ta, having a surface coating of Zr together with Fe or Ni or Co in an amount not greater than 10% by weight of the total weight. In an example the zirconium metal coating contains 5% by weight of metallic iron.
GB357/68A
1967-01-04
1968-01-03
Improvements in or relating to electrical discharge tubes
Expired
GB1205321A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DES107727A
DE1276216B
(en)
1967-01-04
1967-01-04
Thermally highly resilient grid electrode for electrical discharge vessels
Publications (1)
Publication Number
Publication Date
GB1205321A
true
GB1205321A
(en)
1970-09-16
Family
ID=7528332
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB357/68A
Expired
GB1205321A
(en)
1967-01-04
1968-01-03
Improvements in or relating to electrical discharge tubes
Country Status (7)
Country
Link
US
(1)
US3453479A
(en)
JP
(1)
JPS5017830B1
(en)
CH
(1)
CH501308A
(en)
DE
(1)
DE1276216B
(en)
FR
(1)
FR1549929A
(en)
GB
(1)
GB1205321A
(en)
NL
(1)
NL140092B
(en)
Families Citing this family (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2919028A1
(en)
*
1979-04-20
1980-10-30
Bbc Brown Boveri & Cie
ELECTRIC DISCHARGE VESSEL
Family Cites Families (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE884531C
(en)
*
1946-03-15
1953-07-27
Int Standard Electric Corp
Process for the production of electrodes for electrical discharge vessels
US2497111A
(en)
*
1947-07-25
1950-02-14
Eitel Mccullough Inc
Electron tube having carburized thoriated cathode
DE861286C
(en)
*
1950-10-17
1952-12-29
Philips Nv
Process for preparing a platinum-covered molybdenum lattice of an electrical discharge tube which contains a carbonized tungsten-thorium glow cathode
CH299076A
(en)
*
1951-01-12
1954-05-31
Ets Claude Paz & Silva
A method of forming bodies intended for the absorption of gas.
US2821496A
(en)
*
1951-08-03
1958-01-28
Gen Electric
Non-emissive grids
US2769114A
(en)
*
1953-09-04
1956-10-30
Eitel Mccullough Inc
Anode for electron tubes
GB1015840A
(en)
*
1964-09-08
1966-01-05
Standard Telephones Cables Ltd
Thermionic valves
US3361922A
(en)
*
1965-05-24
1968-01-02
Westinghouse Electric Corp
Cathode-grid assembly with means for preventing the formation of electron emissive materials upon the grid element
1967
1967-01-04
DE
DES107727A
patent/DE1276216B/en
active
Pending
1967-12-28
NL
NL676717753A
patent/NL140092B/en
not_active
IP Right Cessation
1967-12-28
JP
JP8364067A
patent/JPS5017830B1/ja
active
Pending
1968
1968-01-02
US
US694620A
patent/US3453479A/en
not_active
Expired – Lifetime
1968-01-03
FR
FR1549929D
patent/FR1549929A/fr
not_active
Expired
1968-01-03
GB
GB357/68A
patent/GB1205321A/en
not_active
Expired
1968-01-04
CH
CH9768A
patent/CH501308A/en
not_active
IP Right Cessation
Also Published As
Publication number
Publication date
FR1549929A
(en)
1968-12-13
NL140092B
(en)
1973-10-15
DE1276216B
(en)
1968-08-29
NL6717753A
(en)
1968-07-05
JPS5017830B1
(en)
1975-06-24
US3453479A
(en)
1969-07-01
CH501308A
(en)
1970-12-31
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Legal Events
Date
Code
Title
Description
1971-01-27
PS
Patent sealed [section 19, patents act 1949]
1985-08-29
PCNP
Patent ceased through non-payment of renewal fee
