FR2091704A5 - - Google Patents

Info

Publication number
FR2091704A5
FR2091704A5 FR7117820A FR7117820A FR2091704A5 FR 2091704 A5 FR2091704 A5 FR 2091704A5 FR 7117820 A FR7117820 A FR 7117820A FR 7117820 A FR7117820 A FR 7117820A FR 2091704 A5 FR2091704 A5 FR 2091704A5
Authority
FR
France
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
FR7117820A
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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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
Priority claimed from GB2361972A external-priority patent/GB1313829A/en
Application filed by English Electric Co Ltd filed Critical English Electric Co Ltd
Application granted granted Critical
Publication of FR2091704A5 publication Critical patent/FR2091704A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186—Getter supports
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
    • H01J41/18—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes
    • H01J41/20—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes using gettering substances
FR7117820A 1970-05-15 1971-05-17 Expired FR2091704A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2361972A GB1313829A (en) 1969-09-18 1970-05-15 Transistors and aproduction thereof

Publications (1)

Publication Number Publication Date
FR2091704A5 true FR2091704A5 (fr) 1972-01-14

Family

ID=10198589

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7117820A Expired FR2091704A5 (fr) 1970-05-15 1971-05-17

Country Status (4)

Country Link
US (1) US3786296A (fr)
DE (1) DE2124167B2 (fr)
FR (1) FR2091704A5 (fr)
GB (1) GB1294604A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338938A (en) * 1993-04-09 1994-08-16 Martin Marietta Energy Systems, Inc. Gamma radiation field intensity meter
ITMI20012389A1 (it) * 2001-11-12 2003-05-12 Getters Spa Catodo cavo con getter integrato per lampade a scarica e metodi per la sua realizzazione
JP4475646B2 (ja) * 2004-08-27 2010-06-09 キヤノン株式会社 画像表示装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2715993A (en) * 1952-06-06 1955-08-23 W M Welch Mfg Company Ionization pump

Also Published As

Publication number Publication date
US3786296A (en) 1974-01-15
DE2124167B2 (de) 1973-07-26
GB1294604A (en) 1972-11-01
DE2124167A1 (de) 1971-11-25

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Legal Events

Date Code Title Description
ST Notification of lapse