GB732853A - Improvements in or relating to vacuum tight joints - Google Patents

Improvements in or relating to vacuum tight joints

Info

Publication number
GB732853A
GB732853A GB4732/53A GB473253A GB732853A GB 732853 A GB732853 A GB 732853A GB 4732/53 A GB4732/53 A GB 4732/53A GB 473253 A GB473253 A GB 473253A GB 732853 A GB732853 A GB 732853A
Authority
GB
United Kingdom
Prior art keywords
seal
envelope parts
vacuum
feb
enamel
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
GB4732/53A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB732853A publication Critical patent/GB732853A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

732,853. Discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 19, 1953 [Feb. 26, 1952], No. 4732/53. Class 39 (1). A method of sealing envelope parts A and B together consists of coating them at least in part with a glaze or enamel a, b, of lower melting point than the envelope parts, grinding the coated surfaces so that they fit together closely, and then fusing the coatings together to form a vacuum-tight seal. The method can be used to seal unlike materials together, such asglass, ceramic, or metal; and the sealing surfaces may be flat or curved. The abutting ground surfaces will themselves retain a degree of vacuum, and the seals, as applied to discharge tubes or cathode-ray tubes, may be made by placing the envelope parts together, and evacuating the tube as part of the ordinary processing sequences carried out on a rotary machine; the actual seal is made as the tube indexes through the oven. In Fig. 8, the enamel seal a, b is wholly within the thickwalled envelope parts A, B.
GB4732/53A 1952-02-26 1953-02-19 Improvements in or relating to vacuum tight joints Expired GB732853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR732853X 1952-02-26

Publications (1)

Publication Number Publication Date
GB732853A true GB732853A (en) 1955-06-29

Family

ID=9123575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4732/53A Expired GB732853A (en) 1952-02-26 1953-02-19 Improvements in or relating to vacuum tight joints

Country Status (1)

Country Link
GB (1) GB732853A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106463A (en) * 1959-05-04 1963-10-08 Penta Lab Inc Method of uniting an electron tube base structure
US3153839A (en) * 1962-01-11 1964-10-27 Rauland Corp Method of forming vacuum seals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106463A (en) * 1959-05-04 1963-10-08 Penta Lab Inc Method of uniting an electron tube base structure
US3153839A (en) * 1962-01-11 1964-10-27 Rauland Corp Method of forming vacuum seals

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