GB967685A - Improvements in or relating to gas discharge tubes - Google Patents

Improvements in or relating to gas discharge tubes

Info

Publication number
GB967685A
GB967685A GB11926/62A GB1192662A GB967685A GB 967685 A GB967685 A GB 967685A GB 11926/62 A GB11926/62 A GB 11926/62A GB 1192662 A GB1192662 A GB 1192662A GB 967685 A GB967685 A GB 967685A
Authority
GB
United Kingdom
Prior art keywords
mercury
tube
grm
march
gas discharge
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
GB11926/62A
Inventor
Cecil Hedworth Mayer
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.)
Hivac Ltd
Original Assignee
Hivac 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 Hivac Ltd filed Critical Hivac Ltd
Priority to GB11926/62A priority Critical patent/GB967685A/en
Priority to US267228A priority patent/US3230027A/en
Priority to FR929070A priority patent/FR1351908A/en
Publication of GB967685A publication Critical patent/GB967685A/en
Expired 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
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0069—Tubes for displaying characters

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Lasers (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

967,685. Cold cathode tubes. HIVAC Ltd. March 18, 1963 [March 28, 1962], No. 11926/62. Heading H1D. A method of introducing mercury into a low pressure gas discharge tube comprises introducing within the tube envelope prior to pumping and sealing a quantity of a staple oxide of mercury together with a suitable agent such as red or amorphous phosphates for reducing the oxide to free the mercury on heating subsequent to sealing the tube. One preferred composition is 4.3 grm. Hg 0 to 0.3 grm. phosphorus giving 20% excess phosphorus which is dispersed and assists in clearing any other free oxygen in the tube. The mixture is placed within a thin-walled metal capsule 22 welded to a C-shaped member 21 of solid wire forming a closed turn which is placed within an R.F. field, thus heating the composition and disrupting the capsule wall. A mica disc 17 has openings to permit the mercury vapour to pass into the body of a character display arrangement 14-16.
GB11926/62A 1962-03-28 1962-03-28 Improvements in or relating to gas discharge tubes Expired GB967685A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB11926/62A GB967685A (en) 1962-03-28 1962-03-28 Improvements in or relating to gas discharge tubes
US267228A US3230027A (en) 1962-03-28 1963-03-22 Method of constructing cold cathode gas discharge tubes
FR929070A FR1351908A (en) 1962-03-28 1963-03-25 Development of cold cathode discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11926/62A GB967685A (en) 1962-03-28 1962-03-28 Improvements in or relating to gas discharge tubes

Publications (1)

Publication Number Publication Date
GB967685A true GB967685A (en) 1964-08-26

Family

ID=9995186

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11926/62A Expired GB967685A (en) 1962-03-28 1962-03-28 Improvements in or relating to gas discharge tubes

Country Status (2)

Country Link
US (1) US3230027A (en)
GB (1) GB967685A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063393A1 (en) * 1981-04-16 1982-10-27 Koninklijke Philips Electronics N.V. Method of producing a low-pressure mercury vapour discharge lamp

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1402090A (en) * 1964-04-29 1965-06-11 Csf Improvements to mercury vapor tubes
CH455038A (en) * 1965-06-08 1968-04-30 Getters Spa Procedure for filling discharge containers with mercury and for eliminating harmful residual gases
US3558957A (en) * 1969-04-03 1971-01-26 Burroughs Corp Multiple cathode indicator tube having improved anode and mercury source
NL158652B (en) * 1969-06-27 1978-11-15 Philips Nv PROCESS FOR THE MANUFACTURE OF A LOW-PRESSURE MERCURY VAPOR DISCHARGE LAMP.
US3944869A (en) * 1973-04-27 1976-03-16 Burroughs Corporation Display panel with expansible, metallic capsule containing mercury and method of making said capsule
US4754193A (en) * 1985-11-08 1988-06-28 Gte Products Corporation Mercury dispenser for arc discharge lamps
US4823047A (en) * 1987-10-08 1989-04-18 Gte Products Corporation Mercury dispenser for arc discharge lamps
US5394056A (en) * 1993-04-07 1995-02-28 General Electric Company Opening of capsule inside sealed lamp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1855901A (en) * 1929-08-21 1932-04-26 Gen Electric Process for introducing mercury into discharge tubes and apparatus therefor
US1991510A (en) * 1930-10-23 1935-02-19 Haworth Securities Corp Radiating apparatus
NL98429C (en) * 1954-05-28

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063393A1 (en) * 1981-04-16 1982-10-27 Koninklijke Philips Electronics N.V. Method of producing a low-pressure mercury vapour discharge lamp

Also Published As

Publication number Publication date
US3230027A (en) 1966-01-18

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