FR602569A - Improvements to gas conduction devices - Google Patents

Improvements to gas conduction devices

Info

Publication number
FR602569A
FR602569A FR602569DA FR602569A FR 602569 A FR602569 A FR 602569A FR 602569D A FR602569D A FR 602569DA FR 602569 A FR602569 A FR 602569A
Authority
FR
France
Prior art keywords
gas conduction
conduction devices
devices
gas
conduction
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR602569A publication Critical patent/FR602569A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/26—Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
FR602569D 1924-07-17 1925-07-16 Improvements to gas conduction devices Expired FR602569A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US726640A US1847927A (en) 1924-07-17 1924-07-17 Gaseous conduction device

Publications (1)

Publication Number Publication Date
FR602569A true FR602569A (en) 1926-03-22

Family

ID=24919412

Family Applications (1)

Application Number Title Priority Date Filing Date
FR602569D Expired FR602569A (en) 1924-07-17 1925-07-16 Improvements to gas conduction devices

Country Status (3)

Country Link
US (1) US1847927A (en)
FR (1) FR602569A (en)
GB (1) GB237235A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10186416B2 (en) * 2014-05-15 2019-01-22 Excelitas Technologies Corp. Apparatus and a method for operating a variable pressure sealed beam lamp

Also Published As

Publication number Publication date
GB237235A (en) 1926-07-29
US1847927A (en) 1932-03-01

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