GB696987A - Improvements in or relating to multiple glass-to-metal seals for electron discharge devices - Google Patents

Improvements in or relating to multiple glass-to-metal seals for electron discharge devices

Info

Publication number
GB696987A
GB696987A GB2323151A GB2323151A GB696987A GB 696987 A GB696987 A GB 696987A GB 2323151 A GB2323151 A GB 2323151A GB 2323151 A GB2323151 A GB 2323151A GB 696987 A GB696987 A GB 696987A
Authority
GB
United Kingdom
Prior art keywords
discs
sections
glass
vitreous material
envelope
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
GB2323151A
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.)
RAYMOND SHEPHERD G
Original Assignee
RAYMOND SHEPHERD G
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 RAYMOND SHEPHERD G filed Critical RAYMOND SHEPHERD G
Priority to GB2323151A priority Critical patent/GB696987A/en
Publication of GB696987A publication Critical patent/GB696987A/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
    • C03C27/044—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 glass, glass-ceramic or ceramic material only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/20—Seals between parts of vessels
    • H01J5/22—Vacuum-tight joints between parts of vessel
    • H01J5/26—Vacuum-tight joints between parts of vessel between insulating and conductive parts of vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0037—Solid sealing members other than lamp bases
    • H01J2893/0041—Direct connection between insulating and metal elements, in particular via glass material
    • H01J2893/0043—Glass-to-metal or quartz-to-metal, e.g. by soldering

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)
  • Joining Of Glass To Other Materials (AREA)

Abstract

696,987. Glass-to-metal seals. SHEPHERD, G. R. (Westinghouse Electric International Co.). Oct. 5, 1951, No. 23231/51. Class 36. A multi-seal envelope 11 for an electron discharge device is made by preparing a plurality of annular metal discs 13 for the application of vitreous material thereto, assembling a plurality of hollow vitreous envelope sections 12 alternately with the discs 13, vitreous material 15, having a lower softening temperature than the sections 12 and a coefficient of expansion matching that of the discs 13, being placed therebetween, then heating the assembly to soften the vitreous material 15 but not the sections 12, cooling to cause the vitreous material to seal the parts together simultaneously, and finally annealing the completed envelope. The members 13 may be prepared by pre-oxidization, sand-blasting or etching, and may be enamelled by firing on a layer 14 of powder glass, after which the welding glass 15 is applied and the coated discs assembled for sealing with the sections 12. The welding glass may be applied directly to the metal discs, and may be fired to form an enamel coating before the sealing process.
GB2323151A 1951-10-05 1951-10-05 Improvements in or relating to multiple glass-to-metal seals for electron discharge devices Expired GB696987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2323151A GB696987A (en) 1951-10-05 1951-10-05 Improvements in or relating to multiple glass-to-metal seals for electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2323151A GB696987A (en) 1951-10-05 1951-10-05 Improvements in or relating to multiple glass-to-metal seals for electron discharge devices

Publications (1)

Publication Number Publication Date
GB696987A true GB696987A (en) 1953-09-09

Family

ID=10192288

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2323151A Expired GB696987A (en) 1951-10-05 1951-10-05 Improvements in or relating to multiple glass-to-metal seals for electron discharge devices

Country Status (1)

Country Link
GB (1) GB696987A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263451A1 (en) * 1986-10-06 1988-04-13 Nokia Graetz Gesellschaft mit beschränkter Haftung Vacuum-tight connection of metal and glass surfaces
EP0507976A1 (en) * 1991-04-11 1992-10-14 Siemens Aktiengesellschaft X-ray image intensifier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263451A1 (en) * 1986-10-06 1988-04-13 Nokia Graetz Gesellschaft mit beschränkter Haftung Vacuum-tight connection of metal and glass surfaces
EP0507976A1 (en) * 1991-04-11 1992-10-14 Siemens Aktiengesellschaft X-ray image intensifier

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