GB640705A - Improvements in or relating to the sealing of lead-in conductors in hermetically sealed vessels - Google Patents

Improvements in or relating to the sealing of lead-in conductors in hermetically sealed vessels

Info

Publication number
GB640705A
GB640705A GB3653146A GB3653146A GB640705A GB 640705 A GB640705 A GB 640705A GB 3653146 A GB3653146 A GB 3653146A GB 3653146 A GB3653146 A GB 3653146A GB 640705 A GB640705 A GB 640705A
Authority
GB
United Kingdom
Prior art keywords
lead
sealing
conductors
relating
layer
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
GB3653146A
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 GB640705A publication Critical patent/GB640705A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/04—Joining glass to metal by means of an interlayer
    • C03C27/042—Joining glass to metal by means of an interlayer consisting of a combination of materials selected from glass, glass-ceramic or ceramic material with metals, metal oxides or metal salts
    • C03C27/046—Joining glass to metal by means of an interlayer consisting of a combination of materials selected from glass, glass-ceramic or ceramic material with metals, metal oxides or metal salts of metals, metal oxides or metal salts only

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

640,705. Metal-to-glass seals. PHILIPS LAMPS, Ltd. Dec. 11, 1946, No. 36531. Convention date, Aug. 13, 1943. [Class 36] A lead-in conductor sealed in the glass wall of a high-frequency electric-discharge tube, lamp or like hermetically closed vessel, is pre-coated with a thin layer of silver, copper, or like metal, over which a layer of chromium having a thickness of from 0.5 to 1 micron is applied. The thin chromium layer is stated to oxidize completely under the sealing heat to enhance the joint.
GB3653146A 1943-08-13 1946-12-11 Improvements in or relating to the sealing of lead-in conductors in hermetically sealed vessels Expired GB640705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL112630A NL61585C (en) 1943-08-13 1943-08-13

Publications (1)

Publication Number Publication Date
GB640705A true GB640705A (en) 1950-07-26

Family

ID=33028938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3653146A Expired GB640705A (en) 1943-08-13 1946-12-11 Improvements in or relating to the sealing of lead-in conductors in hermetically sealed vessels

Country Status (6)

Country Link
BE (1) BE457219A (en)
CH (1) CH244457A (en)
DE (1) DE850320C (en)
FR (1) FR906767A (en)
GB (1) GB640705A (en)
NL (1) NL61585C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046204B (en) * 1952-07-30 1958-12-11 Fkg Ag Glass-metal fusion for an electrical discharge vessel containing alkali vapor
US2877393A (en) * 1953-12-22 1959-03-10 Philips Corp Semi-conductor device
DE1006079B (en) * 1954-03-09 1957-04-11 Siemens Ag Process for the production of vacuum-tight glass connections for electrical discharge vessels or the like.
DE1174912B (en) * 1962-01-09 1964-07-30 Bosch Gmbh Robert Process for treating melt wires for electron tubes

Also Published As

Publication number Publication date
CH244457A (en) 1946-09-15
BE457219A (en) 1945-02-18
NL61585C (en) 1947-11-15
DE850320C (en) 1952-09-22
FR906767A (en) 1946-01-18

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