GB151611A - Improved process for removing gas residues and for purifying inert gases in electric vacuum tubes, incandescent lamps and the like - Google Patents

Improved process for removing gas residues and for purifying inert gases in electric vacuum tubes, incandescent lamps and the like

Info

Publication number
GB151611A
GB151611A GB26994/20A GB2699420A GB151611A GB 151611 A GB151611 A GB 151611A GB 26994/20 A GB26994/20 A GB 26994/20A GB 2699420 A GB2699420 A GB 2699420A GB 151611 A GB151611 A GB 151611A
Authority
GB
United Kingdom
Prior art keywords
metal
alloy
alkali
inert gases
incandescent lamps
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
GB26994/20A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB151611A publication Critical patent/GB151611A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

151,611. Hoist, G., Oosterhuis, E., and Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Sept. 23, 1919, [Convention date]. High vacua in lamp bulbs, maintaining.-In vacuum &c. apparatus such as thermionic valves, R÷ntgen-ray tubes, or incandescent lamps, gaseous residues are removed or inert gases purified by means of an alloy of an alkali or alkaliearth metal with a nobler metal having a low vapour pressure, such as tin, the alloy being placed in the bulb so as to be heated in order to vaporize the alkali &c. metal, while the other metal does not vaporize perceptibly. The nobler metal protects the alkali &c. metal against moisture and oxidation. An alloy with tin may be applied as a solder upon a metal part in the bulb. According to the Specification as open to inspection under Sect. 91 (3) (a) an alloy having a higher melting point may be used as material for one or more electrodes or conductors. This subject-matter does not appear in the Specification as accepted.
GB26994/20A 1919-09-23 1920-09-22 Improved process for removing gas residues and for purifying inert gases in electric vacuum tubes, incandescent lamps and the like Expired GB151611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL151611X 1919-09-23

Publications (1)

Publication Number Publication Date
GB151611A true GB151611A (en) 1921-12-22

Family

ID=19776348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26994/20A Expired GB151611A (en) 1919-09-23 1920-09-22 Improved process for removing gas residues and for purifying inert gases in electric vacuum tubes, incandescent lamps and the like

Country Status (2)

Country Link
FR (1) FR524407A (en)
GB (1) GB151611A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2326957A1 (en) * 1972-06-15 1974-01-03 Philips Nv ALKALIMETAL VAPOR GENERATOR AND ELECTRIC DISCHARGE TUBE PROVIDED WITH AT LEAST ONE SURFACE FOR PHOTO EMISSION OR SECONDARY ELECTRON EMISSION MADE BY ONE OF SUCH GENERATOR
US5335004A (en) 1989-12-15 1994-08-02 Canon Kabushiki Kaisha Active energy-ray-curable resin composition, ink jet head having ink path wall formed by use of the composition, process for preparing the head, and ink jet apparatus provided with the head
WO2003031100A1 (en) * 2001-10-08 2003-04-17 Konstantin Technologies Gmbh Method for the production of protective coatings on the surface of chemically active materials
WO2005112067A1 (en) * 2004-08-23 2005-11-24 Nanoshell Materials Research & Development Gmbh New material for vapor sources of alkali and alkaline earth metals and a method of its production

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2326957A1 (en) * 1972-06-15 1974-01-03 Philips Nv ALKALIMETAL VAPOR GENERATOR AND ELECTRIC DISCHARGE TUBE PROVIDED WITH AT LEAST ONE SURFACE FOR PHOTO EMISSION OR SECONDARY ELECTRON EMISSION MADE BY ONE OF SUCH GENERATOR
US5335004A (en) 1989-12-15 1994-08-02 Canon Kabushiki Kaisha Active energy-ray-curable resin composition, ink jet head having ink path wall formed by use of the composition, process for preparing the head, and ink jet apparatus provided with the head
WO2003031100A1 (en) * 2001-10-08 2003-04-17 Konstantin Technologies Gmbh Method for the production of protective coatings on the surface of chemically active materials
WO2005112067A1 (en) * 2004-08-23 2005-11-24 Nanoshell Materials Research & Development Gmbh New material for vapor sources of alkali and alkaline earth metals and a method of its production
WO2005119725A1 (en) * 2004-08-23 2005-12-15 Nanoshell Materials Research & Development Gmbh New material for vapor sources of alkali and alkaline earth metals and a method of its production

Also Published As

Publication number Publication date
FR524407A (en) 1921-09-03

Similar Documents

Publication Publication Date Title
US2417361A (en) Apparatus for producing cold cathode fluorescent lamps or the like
GB151611A (en) Improved process for removing gas residues and for purifying inert gases in electric vacuum tubes, incandescent lamps and the like
US3475072A (en) Getter for incandescent lamps and similar devices
US2203897A (en) Electric incandescent lamp
US1280825A (en) Process of treating drawn metal.
US1054005A (en) Decarbonization of raw metallic filaments for incandescent electric lamps.
US1566848A (en) Incandescent lamp
US2184323A (en) Cathode activation and degassing
US1565564A (en) Method of and means for introducing potassium or other vapors in lamps
GB821465A (en) Improved electric incandescent lamps
US3486063A (en) Incandescent lamp
US997881A (en) Apparatus for the treatment of refractory materials.
US1237210A (en) Method of producing vacuums.
US411018A (en) Manufacture of incandescent electric lamps
US1028636A (en) Method of exhausting vessels.
US908930A (en) Method of decarbonizing filaments for incandescent lamps.
US1643810A (en) Gas-filled incandescent lamp and getter therefor
GB154991A (en) Improvements in and relating to incandescent lamps and similar articles
US3160454A (en) Method of manufacture of iodine cycle incandescent lamps
US2098907A (en) Incandescent electric lamp and method of manufacture thereof
US1018500A (en) Forming device for metallic filaments.
US255362A (en) Edward weston
US1966254A (en) Production of active metals
GB211879A (en) Improvements in or relating to incandescent electric lamps and other similar apparatus, and to glass refining apparatus in connection therewith
GB191119109A (en) Improvements in and relating to Incandescent Electric Lamps.