GB617802A - Improvements in or relating to hermetically sealed glass vessels - Google Patents

Improvements in or relating to hermetically sealed glass vessels

Info

Publication number
GB617802A
GB617802A GB28916/46A GB2891646A GB617802A GB 617802 A GB617802 A GB 617802A GB 28916/46 A GB28916/46 A GB 28916/46A GB 2891646 A GB2891646 A GB 2891646A GB 617802 A GB617802 A GB 617802A
Authority
GB
United Kingdom
Prior art keywords
per cent
relating
hermetically sealed
sealed glass
glass vessels
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
GB28916/46A
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 GB617802A publication Critical patent/GB617802A/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
    • H01J5/22—Vacuum-tight joints between parts of vessel
    • H01J5/24—Vacuum-tight joints between parts of vessel between insulating 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
    • H01J2893/0038—Direct connection between two insulating elements, in particular via glass material
    • H01J2893/0039—Glass-to-glass connection, e.g. by soldering

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

617,802. Glass. PHILIPS LAMPS, Ltd. Sept. 27, 1946, No. 28916. Convention date, April 14, 1943. Drawings to Specification. [Class 56] Two glass parts, for example in an electric discharge tube or incandescent lamp, are sealed together through an intermediate layer of low melting-point glaze which is less than 100 microns thick. The surfaces of the glass parts are made substantially smooth, any irregularities being preferably less than half the thickness of the glaze layer. In a particular example the glaze layer has a thickness of about 10 microns and comprises 16 per cent B 2 O 3 , 80 per cent PbO and 4 per cent ZnO.
GB28916/46A 1943-04-14 1946-09-27 Improvements in or relating to hermetically sealed glass vessels Expired GB617802A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL617802X 1943-04-14

Publications (1)

Publication Number Publication Date
GB617802A true GB617802A (en) 1949-02-11

Family

ID=19788327

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28916/46A Expired GB617802A (en) 1943-04-14 1946-09-27 Improvements in or relating to hermetically sealed glass vessels

Country Status (1)

Country Link
GB (1) GB617802A (en)

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