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GB1171738A - Fluorescent lamp or similar device containing an amalgam of tin-indium-mercury which controls the mercury vapor pressure during operation. - Google Patents

Fluorescent lamp or similar device containing an amalgam of tin-indium-mercury which controls the mercury vapor pressure during operation.

Info

Publication number
GB1171738A
GB1171738A GB42307/68A GB4230768A GB1171738A GB 1171738 A GB1171738 A GB 1171738A GB 42307/68 A GB42307/68 A GB 42307/68A GB 4230768 A GB4230768 A GB 4230768A GB 1171738 A GB1171738 A GB 1171738A
Authority
GB
United Kingdom
Prior art keywords
per cent
mercury
during operation
amalgam
fluorescent lamp
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
GB42307/68A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1171738A publication Critical patent/GB1171738A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

1,171,738. Metal-vapour lamps. WESTING- HOUSE ELECTRIC CORP. 5 Sept., 1968 [27 Oct., 1967], No. 42307/68. Heading H1D. [Also in Division C7] The Hg-vapour pressure within a low-pressure Hg-vapour discharge lamp is controlled during operation by including in the lamp an amount of In-Sn alloy (e.g. In 95-Sn 5 by weight) such that the alloy combines with all the Hg when the lamp is de-energized and forms an amalgam consisting of In 71-91 atom per cent (62-86 wt. per cent) Hg 7-20 atom per cent (12-30 wt. per cent) Sn 2-9 atom per cent ( 2-8 wt. per cent) In the fluorescent lamp 10 shown, the control component 28 consists of a wire mesh collar 29 containing amalgamating alloy. Collar 29 is held on glass stem 16 (through which lead wires 18 pass to contacts 22) by ring clip 30.
GB42307/68A 1967-10-27 1968-09-05 Fluorescent lamp or similar device containing an amalgam of tin-indium-mercury which controls the mercury vapor pressure during operation. Expired GB1171738A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67870267A 1967-10-27 1967-10-27

Publications (1)

Publication Number Publication Date
GB1171738A true GB1171738A (en) 1969-11-26

Family

ID=24723909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42307/68A Expired GB1171738A (en) 1967-10-27 1968-09-05 Fluorescent lamp or similar device containing an amalgam of tin-indium-mercury which controls the mercury vapor pressure during operation.

Country Status (6)

Country Link
US (1) US3526804A (en)
BE (1) BE722837A (en)
DE (1) DE1804545A1 (en)
FR (1) FR1588055A (en)
GB (1) GB1171738A (en)
NL (1) NL6815202A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU308671A1 (en) * 1970-05-25 1973-10-26 Ю. И. Шиндельмап , Г. И. Акулова
NL168367C (en) * 1975-06-20 1982-03-16 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP AND METHOD FOR THE PRODUCTION THEREOF.
CA2155972A1 (en) * 1993-02-12 1994-08-18 Advanced Lighting Technologies, Inc. A fluorescent lamp containing a mercury zinc amalgam and a method of manufacture
US5882237A (en) * 1994-09-01 1999-03-16 Advanced Lighting Technologies, Inc. Fluorescent lamp containing a mercury zinc amalgam and a method of manufacture
US6310437B1 (en) 2000-06-01 2001-10-30 General Electric Company Fluorescent lamp extension tube amalgam holder
WO2002097858A1 (en) * 2001-05-25 2002-12-05 Advanced Lighting Technologies, Inc. Materials and methods for mercury vapor pressure control in discharge devices
EP1550146A2 (en) * 2002-04-11 2005-07-06 Koninklijke Philips Electronics N.V. Low-pressure mercury vapor discharge lamp
US7276853B2 (en) 2002-04-11 2007-10-02 Koninklijke Philips Electronics, N.V. Low-pressure mercury vapor discharge lamp
JP2005522368A (en) * 2002-04-17 2005-07-28 コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト Detection method of tire characteristics
EP1579473A2 (en) * 2002-10-04 2005-09-28 Koninklijke Philips Electronics N.V. Low-pressure mercury vapor discharge lamp
US20070103080A1 (en) * 2005-11-09 2007-05-10 Zoltan Bako Glass sealing and electric lamps with such sealing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL252546A (en) * 1959-06-12
US3263111A (en) * 1962-08-02 1966-07-26 Ulrich W Doering Fluorescent tube with mercury amalgam on tube wall
US3392298A (en) * 1962-08-31 1968-07-09 Sylvania Electric Prod Fluorescent lamp using an indiummercury amalgam band for pressure control

Also Published As

Publication number Publication date
BE722837A (en) 1969-04-01
FR1588055A (en) 1970-04-03
US3526804A (en) 1970-09-01
DE1804545A1 (en) 1969-05-29
NL6815202A (en) 1969-04-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee