GB936481A - Improvements in or relating to incandescent lamps - Google Patents

Improvements in or relating to incandescent lamps

Info

Publication number
GB936481A
GB936481A GB1238860A GB1238860A GB936481A GB 936481 A GB936481 A GB 936481A GB 1238860 A GB1238860 A GB 1238860A GB 1238860 A GB1238860 A GB 1238860A GB 936481 A GB936481 A GB 936481A
Authority
GB
United Kingdom
Prior art keywords
parts
woodmeal
cap
novolak
hexamethylene tetramine
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
GB1238860A
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 Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB936481A publication Critical patent/GB936481A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/62—One or more circuit elements structurally associated with the lamp
    • H01K1/66—One or more circuit elements structurally associated with the lamp with built-in fuse

Landscapes

  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

A hollow cylinder of an insulating foam producing composition consisting of novolak, hexamethylene tetramine and a filler such as calcium carbonate woodmeal or gypsum is inserted into the cap of an incandescent lamp and converted to foam during the cementing operation for securing the cap to the bulb. In an example, a mixture of 5 parts novolak, 1 part hexamethylene tetramine, 8 parts dolomite and 0,5 parts woodmeal is used.ALSO:A hollow cylinder of an insulating foam producing composition consisting of Novolak, hexamethylene tetramine and a filler such as calcium carbonate, woodmeal or gypsum is inserted into the cap of an incandescent lamp and converted to foam during the cementing operation for securing the cap to the bulb. In an example, a mixture of 5 parts Novolak, 1 part hexamethylene tetramine, 8 parts dolomite and 0,5 parts woodmeal is used.
GB1238860A 1959-04-10 1960-04-07 Improvements in or relating to incandescent lamps Expired GB936481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL238035 1959-04-10

Publications (1)

Publication Number Publication Date
GB936481A true GB936481A (en) 1963-09-11

Family

ID=19751665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1238860A Expired GB936481A (en) 1959-04-10 1960-04-07 Improvements in or relating to incandescent lamps

Country Status (5)

Country Link
CH (1) CH383496A (en)
DE (2) DE1859272U (en)
ES (1) ES257195A1 (en)
GB (1) GB936481A (en)
NL (1) NL104317C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003014203A1 (en) * 2001-08-06 2003-02-20 Tyco Electronics Corporation Lamp assembly, methods of forming a lamp assembly, adhesive foamable composition and coupling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246118B (en) * 1965-02-22 1967-08-03 Patra Patent Treuhand Method for mounting an electric incandescent lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003014203A1 (en) * 2001-08-06 2003-02-20 Tyco Electronics Corporation Lamp assembly, methods of forming a lamp assembly, adhesive foamable composition and coupling
US6650033B2 (en) 2001-08-06 2003-11-18 Tyco Electronics Corporation Foamable coupling for lamp assembly and methods for using the coupling
US7198686B2 (en) 2001-08-06 2007-04-03 Tyco Electronics Corporation Foamable coupling for lamp assembly and methods for using the coupling
US7786205B2 (en) 2001-08-06 2010-08-31 Tyco Electronics Corporation Foamable adhesive composition

Also Published As

Publication number Publication date
ES257195A1 (en) 1961-03-16
CH383496A (en) 1964-10-31
DE1123394B (en) 1962-02-08
NL104317C (en)
DE1859272U (en) 1962-10-04

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