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US2313788A - Lamp expaust method - Google Patents

Lamp expaust method Download PDF

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Publication number
US2313788A
US2313788A US418375A US41837541A US2313788A US 2313788 A US2313788 A US 2313788A US 418375 A US418375 A US 418375A US 41837541 A US41837541 A US 41837541A US 2313788 A US2313788 A US 2313788A
Authority
US
United States
Prior art keywords
expaust
lamp
lamp expaust
expaust method
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 - Lifetime
Application number
US418375A
Inventor
Walter H Van Dyke
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Priority to US418375A priority Critical patent/US2313788A/en
Application granted granted Critical
Publication of US2313788A publication Critical patent/US2313788A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
US418375A 1941-11-08 1941-11-08 Lamp expaust method Expired - Lifetime US2313788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US418375A US2313788A (en) 1941-11-08 1941-11-08 Lamp expaust method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US418375A US2313788A (en) 1941-11-08 1941-11-08 Lamp expaust method

Publications (1)

Publication Number Publication Date
US2313788A true US2313788A (en) 1943-03-16

Family

ID=23657862

Family Applications (1)

Application Number Title Priority Date Filing Date
US418375A Expired - Lifetime US2313788A (en) 1941-11-08 1941-11-08 Lamp expaust method

Country Status (1)

Country Link
US (1) US2313788A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550658A (en) * 1947-03-29 1951-04-24 Sylvania Electric Prod Exhaust tubulation
US2755005A (en) * 1952-12-31 1956-07-17 Sylvania Electric Prod Method of exhausting and filling electric gaseous discharge devices
US2991387A (en) * 1958-09-22 1961-07-04 Burroughs Corp Indicator tube
US3290110A (en) * 1962-12-26 1966-12-06 Rca Corp Processing metal vapor tubes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550658A (en) * 1947-03-29 1951-04-24 Sylvania Electric Prod Exhaust tubulation
US2755005A (en) * 1952-12-31 1956-07-17 Sylvania Electric Prod Method of exhausting and filling electric gaseous discharge devices
US2991387A (en) * 1958-09-22 1961-07-04 Burroughs Corp Indicator tube
US3290110A (en) * 1962-12-26 1966-12-06 Rca Corp Processing metal vapor tubes

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