FR670640A - Device for spraying auxiliary substances into vacuum tubes, for obtaining high emission cathodes - Google Patents

Device for spraying auxiliary substances into vacuum tubes, for obtaining high emission cathodes

Info

Publication number
FR670640A
FR670640A FR670640DA FR670640A FR 670640 A FR670640 A FR 670640A FR 670640D A FR670640D A FR 670640DA FR 670640 A FR670640 A FR 670640A
Authority
FR
France
Prior art keywords
auxiliary substances
obtaining high
high emission
vacuum tubes
emission cathodes
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
Other languages
French (fr)
Inventor
Bernhard Loewe
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 filed Critical
Application granted granted Critical
Publication of FR670640A publication Critical patent/FR670640A/en
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
FR670640D 1928-03-01 1929-03-01 Device for spraying auxiliary substances into vacuum tubes, for obtaining high emission cathodes Expired FR670640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE307028X 1928-03-01

Publications (1)

Publication Number Publication Date
FR670640A true FR670640A (en) 1929-12-02

Family

ID=6121307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR670640D Expired FR670640A (en) 1928-03-01 1929-03-01 Device for spraying auxiliary substances into vacuum tubes, for obtaining high emission cathodes

Country Status (4)

Country Link
BE (1) BE358547A (en)
FR (1) FR670640A (en)
GB (1) GB307028A (en)
NL (1) NL30154C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739330C (en) * 1936-01-26 1943-09-21 Siemens Ag Arrangement for gettering electrical discharge vessels with a metallic vessel wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739330C (en) * 1936-01-26 1943-09-21 Siemens Ag Arrangement for gettering electrical discharge vessels with a metallic vessel wall

Also Published As

Publication number Publication date
BE358547A (en)
GB307028A (en) 1930-06-02
NL30154C (en)

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