GB2002172A - Electric incandescent lamp having a pinched seal base - Google Patents

Electric incandescent lamp having a pinched seal base

Info

Publication number
GB2002172A
GB2002172A GB7832174A GB7832174A GB2002172A GB 2002172 A GB2002172 A GB 2002172A GB 7832174 A GB7832174 A GB 7832174A GB 7832174 A GB7832174 A GB 7832174A GB 2002172 A GB2002172 A GB 2002172A
Authority
GB
United Kingdom
Prior art keywords
seal base
base
incandescent lamp
pinched
electric incandescent
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.)
Granted
Application number
GB7832174A
Other versions
GB2002172B (en
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.)
Koninklijke Philips NV
Original Assignee
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB2002172A publication Critical patent/GB2002172A/en
Application granted granted Critical
Publication of GB2002172B publication Critical patent/GB2002172B/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

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Connecting Device With Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

In incandescent lamps having a pinched seal base with the projecting filament wires bent back along the base towards the filament (3) to serve as electrical contacts, the contact with the mating socket can be unreliable. According to the invention, the projecting filament wires (4a, 5a) have an outwardly-directed bend (9). This allows resilient movement of part of each wire towards the surface (6, 7) of the pinched base (2) on insertion into a socket; so improving the reliability of the electrical contact therewith. <IMAGE>
GB7832174A 1977-08-06 1978-08-03 Electric incandescent lamp having a pinched base Expired GB2002172B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7724523U DE7724523U1 (en) 1977-08-06 1977-08-06 ELECTRIC LIGHT BULB WITH CRUSH BASE

Publications (2)

Publication Number Publication Date
GB2002172A true GB2002172A (en) 1979-02-14
GB2002172B GB2002172B (en) 1982-03-17

Family

ID=6681460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7832174A Expired GB2002172B (en) 1977-08-06 1978-08-03 Electric incandescent lamp having a pinched base

Country Status (9)

Country Link
JP (1) JPS5430688A (en)
BE (1) BE869561A (en)
CA (1) CA1101043A (en)
DE (1) DE7724523U1 (en)
ES (1) ES472343A1 (en)
FR (1) FR2399735A1 (en)
GB (1) GB2002172B (en)
IT (2) IT1097682B (en)
SE (1) SE437093B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH038746A (en) * 1989-06-05 1991-01-16 Nippon Sheet Glass Co Ltd Colored flat glass
KR20040000332A (en) 2002-06-24 2004-01-03 아사히 가라스 가부시키가이샤 Funnel for cathod-ray tube and its manufacturing method

Also Published As

Publication number Publication date
FR2399735B3 (en) 1981-04-17
IT7826453A0 (en) 1978-08-03
IT1097682B (en) 1985-08-31
CA1101043A (en) 1981-05-12
IT7822522V0 (en) 1978-08-03
SE437093B (en) 1985-02-04
FR2399735A1 (en) 1979-03-02
SE7808352L (en) 1979-02-07
BE869561A (en) 1979-02-05
JPS5430688A (en) 1979-03-07
ES472343A1 (en) 1979-03-16
GB2002172B (en) 1982-03-17
DE7724523U1 (en) 1978-04-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970803