GB1302340A - - Google Patents

Info

Publication number
GB1302340A
GB1302340A GB3796571A GB3796571A GB1302340A GB 1302340 A GB1302340 A GB 1302340A GB 3796571 A GB3796571 A GB 3796571A GB 3796571 A GB3796571 A GB 3796571A GB 1302340 A GB1302340 A GB 1302340A
Authority
GB
United Kingdom
Prior art keywords
ribbon
lamp
slot
rods
tungsten
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
GB3796571A
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 filed Critical
Publication of GB1302340A publication Critical patent/GB1302340A/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
    • H01J5/32—Seals for leading-in conductors
    • H01J5/38—Pinched-stem or analogous seals

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1302340 Electric lamp GTE SYLVANIA Inc 12 Aug 1971 [28 Aug 1970] 37965/71 Heading H1F [Also in Division C1] In manufacturing a lamp a longitudinal slot is formed in one end of a lead-in wire or rod, one end of a refractory-metal ribbon is inserted in the slot, the sides of the slot are closed down on to the ribbon and the ribbon is embedded in a press seal of a lamp envelope, In an embodiment relating to an arc-discharge lamp (Fig. 1, not shown) tungsten rods (7) and a tungsten or tantalum starter rod (8) are joined to molybdenum ribbons (5) by pressing the molybdenum ribbon on to the rods with heating. The temperature is kept low enough to inhibit recrystallization of the rods. In another embodiment (Fig. 2, not shown) a halogen tungsten-filament lamp is manufactured. The end of the ribbon may be folded upon itself prior to insertion in the slot.
GB3796571A 1970-08-28 1971-08-12 Expired GB1302340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6769970A 1970-08-28 1970-08-28

Publications (1)

Publication Number Publication Date
GB1302340A true GB1302340A (en) 1973-01-10

Family

ID=22077777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3796571A Expired GB1302340A (en) 1970-08-28 1971-08-12

Country Status (6)

Country Link
US (1) US3668456A (en)
AU (1) AU3273371A (en)
CA (1) CA940584A (en)
DE (1) DE2142687A1 (en)
GB (1) GB1302340A (en)
ZA (1) ZA715437B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739219A (en) * 1984-11-24 1988-04-19 Thorn Emi Plc Electric lamp with pinch sealed outer conductor of non-highly refractory material

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7306208A (en) * 1973-05-04 1974-11-06
US4045645A (en) * 1976-03-05 1977-08-30 Gte Sylvania Incorporated Welding process for slotted tungsten rod
US4703221A (en) * 1986-04-18 1987-10-27 Ochoa Carlos G Electric lamp and method of making
US5038010A (en) * 1989-11-29 1991-08-06 Samsung Electron Devices Co., Ltd. Apparatus for welding leads to the electrodes of an ultrahigh voltage mercury vapor lamp
JP3803432B2 (en) * 1995-10-30 2006-08-02 セイコーエプソン株式会社 Lamp unit and image reading apparatus using the same
US8277274B2 (en) * 2002-11-07 2012-10-02 Advanced Lighting Technologies, Inc. Apparatus and methods for use of refractory abhesives in protection of metallic foils and leads
US7153179B2 (en) * 2002-11-07 2006-12-26 Advanced Lighting Technologies, Inc. Oxidation-protected metallic foil and method
DE102004044369A1 (en) * 2004-09-10 2006-03-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electric lamp
WO2006046166A2 (en) * 2004-10-25 2006-05-04 Koninklijke Philips Electronics N.V. Electric lamp
DE102006047389B4 (en) * 2006-10-06 2017-11-09 Osram Gmbh A metal foil sealed lamp comprising a slotted metal pin and a metal foil connected thereto

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA683858A (en) * 1964-04-07 J. Kreps Thomas Electric lamp filament connection
US648516A (en) * 1899-06-29 1900-05-01 Karl Ochs Electric lamp with burner of the second class.
US2876377A (en) * 1955-09-01 1959-03-03 Westinghouse Electric Corp Ribbon seal and method of fabrication
US2883571A (en) * 1958-03-03 1959-04-21 Gen Electric Electric incandescent lamp
US3093769A (en) * 1959-05-15 1963-06-11 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Mixed-light electric lamp
US3073985A (en) * 1960-04-21 1963-01-15 Westinghouse Electric Corp Arc tube and method
US3048741A (en) * 1960-08-24 1962-08-07 Duro Test Corp Arc lamp with self-ballasted arc tube and improved lumen maintenance
US3360765A (en) * 1966-05-27 1967-12-26 British Lighting Ind Ltd Mounting of tungsten-halogen lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739219A (en) * 1984-11-24 1988-04-19 Thorn Emi Plc Electric lamp with pinch sealed outer conductor of non-highly refractory material

Also Published As

Publication number Publication date
US3668456A (en) 1972-06-06
AU3273371A (en) 1973-03-01
DE2142687A1 (en) 1972-03-02
CA940584A (en) 1974-01-22
ZA715437B (en) 1972-05-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees