EP1912242A3 - Method and device for feeding a precisely portioned amount of mercury into a discharge lamp - Google Patents

Method and device for feeding a precisely portioned amount of mercury into a discharge lamp Download PDF

Info

Publication number
EP1912242A3
EP1912242A3 EP08100654A EP08100654A EP1912242A3 EP 1912242 A3 EP1912242 A3 EP 1912242A3 EP 08100654 A EP08100654 A EP 08100654A EP 08100654 A EP08100654 A EP 08100654A EP 1912242 A3 EP1912242 A3 EP 1912242A3
Authority
EP
European Patent Office
Prior art keywords
mercury
discharge container
drops
gas flow
bypass channel
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.)
Withdrawn
Application number
EP08100654A
Other languages
German (de)
French (fr)
Other versions
EP1912242A2 (en
Inventor
Petar Stanic
Jürgen REMDE
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.)
Flowil International Lighting Holding BV
Original Assignee
Flowil International Lighting Holding BV
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 Flowil International Lighting Holding BV filed Critical Flowil International Lighting Holding BV
Publication of EP1912242A2 publication Critical patent/EP1912242A2/en
Publication of EP1912242A3 publication Critical patent/EP1912242A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/395—Filling vessels
    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vacuum Packaging (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Treating Waste Gases (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

The method involves introducing the mercury into a dosage volume in form of single drops (16) in a pre-operative step during or after the dosage of the mercury quantity and finally the total introducing quantity of mercury is transported into a filling section by maintaining the drops formed before in the discharge container (13). The discharge container is attached to a lamp holder (11) and is subjected with a gas flow through the lamp holder and further filled with a predetermined quantity of mercury through a tube. A reversal mechanism is provided, which passes a gas flow through a bypass channel (64) to the drops during the pre-operative step and blocks the bypass channel during the filling process in such a way that the gas flow is led while blocking the bypass channel by the dosage volume and carries along the drops into the discharge container. An independent claim is also included for a device for introducing an accurate dosable quantity of mercury into the discharge container of a lamp particularly into a fluorescent tube.
EP08100654A 2006-04-07 2006-04-07 Method and device for feeding a precisely portioned amount of mercury into a discharge lamp Withdrawn EP1912242A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06007445A EP1843380B1 (en) 2006-04-07 2006-04-07 Method and device for introducing an exactly dosable amount of mercury into a discharge lamp

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP06007445A Division EP1843380B1 (en) 2006-04-07 2006-04-07 Method and device for introducing an exactly dosable amount of mercury into a discharge lamp

Publications (2)

Publication Number Publication Date
EP1912242A2 EP1912242A2 (en) 2008-04-16
EP1912242A3 true EP1912242A3 (en) 2008-08-27

Family

ID=36674966

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08100654A Withdrawn EP1912242A3 (en) 2006-04-07 2006-04-07 Method and device for feeding a precisely portioned amount of mercury into a discharge lamp
EP06007445A Not-in-force EP1843380B1 (en) 2006-04-07 2006-04-07 Method and device for introducing an exactly dosable amount of mercury into a discharge lamp

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06007445A Not-in-force EP1843380B1 (en) 2006-04-07 2006-04-07 Method and device for introducing an exactly dosable amount of mercury into a discharge lamp

Country Status (4)

Country Link
US (2) US7695336B2 (en)
EP (2) EP1912242A3 (en)
AT (1) ATE424620T1 (en)
DE (1) DE502006003007D1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2391573A (en) * 1944-03-07 1945-12-25 Herzog Carl Method of and apparatus for making cold cathode fluorescent lamps or the like
US2433177A (en) * 1944-02-10 1947-12-23 Westinghouse Electric Corp Method and apparatus for introducing mercury into a discharge device by means of a capillary tube and a by-pass connection
US2699279A (en) * 1953-07-14 1955-01-11 Sylvania Electric Prod Mercury dispenser
US2726799A (en) * 1953-03-23 1955-12-13 Sylvania Electric Prod Apparatus for exhausting electric discharge devices
JPS5543729A (en) * 1978-09-22 1980-03-27 Hitachi Ltd Mercury head
JPS5593635A (en) * 1978-12-30 1980-07-16 Matsushita Electric Works Ltd Method of enclosing mercury in discharge lamp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842290A (en) 1955-12-19 1958-07-08 Sylvania Electric Prod Mercury dispenser
IT1277239B1 (en) 1995-11-23 1997-11-05 Getters Spa DEVICE FOR THE EMISSION OF MERCURY, THE ABSORPTION OF REACTIVE GASES AND THE SHIELDING OF THE ELECTRODE INSIDE LAMPS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433177A (en) * 1944-02-10 1947-12-23 Westinghouse Electric Corp Method and apparatus for introducing mercury into a discharge device by means of a capillary tube and a by-pass connection
US2391573A (en) * 1944-03-07 1945-12-25 Herzog Carl Method of and apparatus for making cold cathode fluorescent lamps or the like
US2726799A (en) * 1953-03-23 1955-12-13 Sylvania Electric Prod Apparatus for exhausting electric discharge devices
US2699279A (en) * 1953-07-14 1955-01-11 Sylvania Electric Prod Mercury dispenser
JPS5543729A (en) * 1978-09-22 1980-03-27 Hitachi Ltd Mercury head
JPS5593635A (en) * 1978-12-30 1980-07-16 Matsushita Electric Works Ltd Method of enclosing mercury in discharge lamp

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 075 (E - 013) 31 May 1980 (1980-05-31) *
PATENT ABSTRACTS OF JAPAN vol. 004, no. 141 (E - 028) 4 October 1980 (1980-10-04) *

Also Published As

Publication number Publication date
US20070281572A1 (en) 2007-12-06
EP1843380B1 (en) 2009-03-04
EP1843380A1 (en) 2007-10-10
DE502006003007D1 (en) 2009-04-16
ATE424620T1 (en) 2009-03-15
US20100159791A1 (en) 2010-06-24
US7695336B2 (en) 2010-04-13
EP1912242A2 (en) 2008-04-16

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