FR870467A - Dispositif supprimant le queusot des lampes et tubes a incandescence, et enveloppes analogues - Google Patents

Dispositif supprimant le queusot des lampes et tubes a incandescence, et enveloppes analogues

Info

Publication number
FR870467A
FR870467A FR870467DA FR870467A FR 870467 A FR870467 A FR 870467A FR 870467D A FR870467D A FR 870467DA FR 870467 A FR870467 A FR 870467A
Authority
FR
France
Prior art keywords
tail
tubes
incandescent lamps
device eliminating
eliminating
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
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR870467A publication Critical patent/FR870467A/fr
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
    • H01J9/40—Closing vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
FR870467D 1940-03-01 1941-02-28 Dispositif supprimant le queusot des lampes et tubes a incandescence, et enveloppes analogues Expired FR870467A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US321634A US2269840A (en) 1940-03-01 1940-03-01 Tipless exhaust

Publications (1)

Publication Number Publication Date
FR870467A true FR870467A (fr) 1942-03-12

Family

ID=23251364

Family Applications (2)

Application Number Title Priority Date Filing Date
FR870467D Expired FR870467A (fr) 1940-03-01 1941-02-28 Dispositif supprimant le queusot des lampes et tubes a incandescence, et enveloppes analogues
FR938745D Expired FR938745A (fr) 1940-03-01 1946-11-07 Perfectionnements aux dispositifs électriques à vide

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR938745D Expired FR938745A (fr) 1940-03-01 1946-11-07 Perfectionnements aux dispositifs électriques à vide

Country Status (2)

Country Link
US (1) US2269840A (fr)
FR (2) FR870467A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE457265A (fr) * 1943-08-18
US2558357A (en) * 1946-09-20 1951-06-26 Rca Corp Lead for electron discharge devices
US2556059A (en) * 1949-06-21 1951-06-05 Tung Sol Lamp Works Inc Electric incandescent lamp and method of manufacturing
US2582684A (en) * 1949-07-12 1952-01-15 Eitel Mccullough Inc Electron tube structure
US2692298A (en) * 1952-04-29 1954-10-19 Westinghouse Electric Corp Tubulation and lead-in construction

Also Published As

Publication number Publication date
US2269840A (en) 1942-01-13
FR938745A (fr) 1948-10-22

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