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GB552753A - Improvements in or relating to the exhaust tube constructions in the envelopes of discharge tubes - Google Patents

Improvements in or relating to the exhaust tube constructions in the envelopes of discharge tubes

Info

Publication number
GB552753A
GB552753A GB15248/41A GB1524841A GB552753A GB 552753 A GB552753 A GB 552753A GB 15248/41 A GB15248/41 A GB 15248/41A GB 1524841 A GB1524841 A GB 1524841A GB 552753 A GB552753 A GB 552753A
Authority
GB
United Kingdom
Prior art keywords
envelopes
relating
exhaust tube
discharge tubes
tube constructions
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
GB15248/41A
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
Publication of GB552753A publication Critical patent/GB552753A/en
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
    • 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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

552,753. Discharge apparatus. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Nov. 26, 1941, No. 15248. Drawings to Specification. [Class 39 (i)] The subject-matter of this Specification is identical with that of Specification 604,785, [Group XL (a)]
GB15248/41A 1940-08-10 1941-11-26 Improvements in or relating to the exhaust tube constructions in the envelopes of discharge tubes Expired GB552753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL224049X 1940-08-10

Publications (1)

Publication Number Publication Date
GB552753A true GB552753A (en) 1943-04-22

Family

ID=19779541

Family Applications (2)

Application Number Title Priority Date Filing Date
GB15248/41A Expired GB552753A (en) 1940-08-10 1941-11-26 Improvements in or relating to the exhaust tube constructions in the envelopes of discharge tubes
GB32635/45A Expired GB604785A (en) 1940-08-10 1945-12-03 Improvements in or relating to the exhaust tube constructions in the envelopes of electric discharge tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB32635/45A Expired GB604785A (en) 1940-08-10 1945-12-03 Improvements in or relating to the exhaust tube constructions in the envelopes of electric discharge tubes

Country Status (6)

Country Link
US (1) US2442608A (en)
BE (1) BE442424A (en)
CH (1) CH224049A (en)
FR (1) FR874589A (en)
GB (2) GB552753A (en)
NL (1) NL60403C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442608A (en) * 1940-08-10 1948-06-01 Hartford Nat Bank & Trust Co Exhaust tube arrangement in flat disc press electron discharge devices

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL107438C (en) * 1957-07-12 1900-01-01
FR1284007A (en) * 1960-12-30 1962-02-09 Csf Closing of metal vacuum chambers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE442424A (en) * 1940-08-10

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442608A (en) * 1940-08-10 1948-06-01 Hartford Nat Bank & Trust Co Exhaust tube arrangement in flat disc press electron discharge devices

Also Published As

Publication number Publication date
NL60403C (en)
US2442608A (en) 1948-06-01
FR874589A (en) 1942-08-11
CH224049A (en) 1942-10-31
BE442424A (en)
GB604785A (en) 1948-07-09

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