FR668025A - Electric discharge tube - Google Patents

Electric discharge tube

Info

Publication number
FR668025A
FR668025A FR668025DA FR668025A FR 668025 A FR668025 A FR 668025A FR 668025D A FR668025D A FR 668025DA FR 668025 A FR668025 A FR 668025A
Authority
FR
France
Prior art keywords
electric discharge
discharge tube
tube
electric
discharge
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)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR668025A publication Critical patent/FR668025A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
    • H01J17/26—Means for producing, introducing, or replenishing gas or vapour during operation of the tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/50—Thermionic-cathode tubes
    • H01J17/52—Thermionic-cathode tubes with one cathode and one anode
FR668025D 1928-03-09 1929-01-25 Electric discharge tube Expired FR668025A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2081247X 1928-03-09
GB9910/28A GB314925A (en) 1928-03-09 1928-04-02 Improvements in or relating to electric discharge tubes

Publications (1)

Publication Number Publication Date
FR668025A true FR668025A (en) 1929-10-26

Family

ID=31995670

Family Applications (1)

Application Number Title Priority Date Filing Date
FR668025D Expired FR668025A (en) 1928-03-09 1929-01-25 Electric discharge tube

Country Status (4)

Country Link
US (1) US2081247A (en)
DE (1) DE676572C (en)
FR (1) FR668025A (en)
GB (1) GB314925A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532188A (en) * 1943-07-15 1950-11-28 Hartford Nat Bank & Trust Co Ion discharge tube for high voltages
CH349706A (en) * 1957-03-28 1960-10-31 Patelhold Patentverwertung Electric discharge vessel filled with mercury vapor and process for its manufacture
FR1573924A (en) * 1968-02-02 1969-07-11

Also Published As

Publication number Publication date
DE676572C (en) 1939-06-07
GB314925A (en) 1929-07-02
US2081247A (en) 1937-05-25

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