GB1203944A - Method and apparatus for increasing and indicating filament life - Google Patents

Method and apparatus for increasing and indicating filament life

Info

Publication number
GB1203944A
GB1203944A GB35878/67A GB3587867A GB1203944A GB 1203944 A GB1203944 A GB 1203944A GB 35878/67 A GB35878/67 A GB 35878/67A GB 3587867 A GB3587867 A GB 3587867A GB 1203944 A GB1203944 A GB 1203944A
Authority
GB
United Kingdom
Prior art keywords
filament
life
indicating
current
aug
Prior art date
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
GB35878/67A
Other languages
English (en)
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.)
Ampex Corp
Original Assignee
Ampex Corp
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.)
Filing date
Publication date
Application filed by Ampex Corp filed Critical Ampex Corp
Publication of GB1203944A publication Critical patent/GB1203944A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/42—Measurement or testing during manufacture

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Measuring Fluid Pressure (AREA)
GB35878/67A 1966-08-19 1967-08-18 Method and apparatus for increasing and indicating filament life Expired GB1203944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57367066A 1966-08-19 1966-08-19

Publications (1)

Publication Number Publication Date
GB1203944A true GB1203944A (en) 1970-09-03

Family

ID=24292926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35878/67A Expired GB1203944A (en) 1966-08-19 1967-08-18 Method and apparatus for increasing and indicating filament life

Country Status (6)

Country Link
US (1) US3466534A (de)
BE (1) BE702661A (de)
DE (1) DE1589467B2 (de)
FR (1) FR1533843A (de)
GB (1) GB1203944A (de)
NL (1) NL6710707A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020079409A1 (en) * 2018-10-18 2020-04-23 Elekta Ltd. Method for use with a radiotherapy device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938034A (en) * 1974-05-06 1976-02-10 Reliable Electric Company Gas tube tester
DE2853677C2 (de) * 1978-12-13 1985-10-10 Leybold-Heraeus GmbH, 5000 Köln Schaltung für ein Ionisationsvakuummeter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2082036A (en) * 1932-06-29 1937-06-01 Westinghouse Electric & Mfg Co Translating apparatus
US3005949A (en) * 1957-08-12 1961-10-24 Gen Electric Automatic testing circuit
US3040244A (en) * 1959-08-05 1962-06-19 Du Pont Thyratron anticipatory failure detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020079409A1 (en) * 2018-10-18 2020-04-23 Elekta Ltd. Method for use with a radiotherapy device
CN113243023A (zh) * 2018-10-18 2021-08-10 伊利克塔有限公司 用于与放射治疗装置一起使用的方法

Also Published As

Publication number Publication date
NL6710707A (de) 1968-02-20
FR1533843A (fr) 1968-07-19
US3466534A (en) 1969-09-09
DE1589467B2 (de) 1972-03-30
DE1589467A1 (de) 1970-05-14
BE702661A (de) 1968-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees