GB604785A - Improvements in or relating to the exhaust tube constructions in the envelopes of electric discharge tubes - Google Patents

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

Info

Publication number
GB604785A
GB604785A GB32635/45A GB3263545A GB604785A GB 604785 A GB604785 A GB 604785A GB 32635/45 A GB32635/45 A GB 32635/45A GB 3263545 A GB3263545 A GB 3263545A GB 604785 A GB604785 A GB 604785A
Authority
GB
United Kingdom
Prior art keywords
discharge tubes
envelopes
relating
electric discharge
exhaust tube
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
GB32635/45A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
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 Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB604785A publication Critical patent/GB604785A/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

604,785. Discharge apparatus. PHILIPS LAMPS, Ltd. Dec. 3, 1945, No. 32635. Convention date, Aug. 10, 1940. [Class 39 (i)] In electron discharge tubes having a flat base of glass, ceramics or metal, the exhausting tube 1 is protected by a sleeve 5 attached to a metal bush 4 extending to the inside of the base 2. Where the base is of metal the bush may be formed integrally therewith. The sleeve 5 acts as a screen between the conductors and as locating means for the tube in its holder. The subject-matter of this Specification is identical with that of Specification 552,753.
GB32635/45A 1940-08-10 1945-12-03 Improvements in or relating to the exhaust tube constructions in the envelopes of electric discharge tubes Expired GB604785A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB604785A true GB604785A (en) 1948-07-09

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 Before (1)

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

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)

Families Citing this family (3)

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

Also Published As

Publication number Publication date
GB552753A (en) 1943-04-22
FR874589A (en) 1942-08-11
US2442608A (en) 1948-06-01
BE442424A (en)
NL60403C (en)
CH224049A (en) 1942-10-31

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