GB1011259A - Improvements in or relating to getters for electron discharge tubes and other vacuumvessels - Google Patents

Improvements in or relating to getters for electron discharge tubes and other vacuumvessels

Info

Publication number
GB1011259A
GB1011259A GB43866/62A GB4386662A GB1011259A GB 1011259 A GB1011259 A GB 1011259A GB 43866/62 A GB43866/62 A GB 43866/62A GB 4386662 A GB4386662 A GB 4386662A GB 1011259 A GB1011259 A GB 1011259A
Authority
GB
United Kingdom
Prior art keywords
grains
gauze
getters
nov
compressed mass
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
GB43866/62A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1011259A publication Critical patent/GB1011259A/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
    • 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
    • H01J7/183—Composition or manufacture of getters
    • 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
    • H01J7/186—Getter supports

Abstract

1,011,259. Gettering. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov. 20, 1962 [Nov. 21, 1961], No. 43866/62. Heading H1D. A method of producing a getter comprises the steps of mixing fine grains (2-30 m.<SP>2</SP>gm.<SP>-1</SP> specific surface area) of hydrides of zirconium, hafnium, titanium thorium, or any alloy of these, with equally fine grains of molybdenum or tungsten to hinder sintering; compressing the mixture under a pressure of 1 metric ton/ cm.; then granulating the compressed mass to form larger grains of about 200-300 microns diameter (Fig. 4) and packing these loosely in a perforated holder. In this way macropores 15 are formed between the larger (" secondary ") grains so that gas can reach the micropores 14 between smaller grains throughout the volume of the getterer. The perforated holder may be a gauze cage (also containing a nickel ring or plate for eddycurrent heating), or a nickel cylinder with gauze ends, or, as shown in Fig. 3, a pair of coaxial gauze cylinders pinched and welded at 11 to form a plurality of bags 9. It is shown that both the absorption rate and capacity of such getters are an order of magnitude higher than with a simple compressed mass.
GB43866/62A 1961-11-21 1962-11-20 Improvements in or relating to getters for electron discharge tubes and other vacuumvessels Expired GB1011259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN20851A DE1224845B (en) 1961-11-21 1961-11-21 Gas binder arrangement for electron tubes and other vacuum vessels

Publications (1)

Publication Number Publication Date
GB1011259A true GB1011259A (en) 1965-11-24

Family

ID=7341476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43866/62A Expired GB1011259A (en) 1961-11-21 1962-11-20 Improvements in or relating to getters for electron discharge tubes and other vacuumvessels

Country Status (7)

Country Link
US (1) US3187885A (en)
BE (1) BE625037A (en)
CH (1) CH423002A (en)
DE (1) DE1224845B (en)
DK (1) DK108584C (en)
GB (1) GB1011259A (en)
NL (1) NL285519A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907948A (en) * 1979-02-05 1990-03-13 Saes Getters S.P.A. Non-evaporable ternary gettering alloy, particularly for the sorption of water and water vapor in nuclear reactor fuel elements

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619697A (en) * 1964-07-09 1971-11-09 Westinghouse Electric Corp Mercury vapor discharge lamp and pressure-regulating means therefor
GB1166943A (en) * 1967-02-24 1969-10-15 Edwards High Vacuum Int Ltd Cathode Arrangements for Getter Ion Pumps
US3504215A (en) * 1967-11-30 1970-03-31 Westinghouse Electric Corp Planar fluorescent lamp with integral amalgam type mercury-vapor pressure control component
US4272259A (en) * 1976-07-21 1981-06-09 Union Carbide Corporation Gas gettering system
JP4327747B2 (en) * 2005-02-21 2009-09-09 双葉電子工業株式会社 Electronic device having non-evaporable getter and method for manufacturing the electronic device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2404803A (en) * 1941-01-25 1946-07-30 Western Electric Co Space discharge device
DE886788C (en) * 1945-02-03 1953-10-05 Lorenz C Ag Highly active getter
NL181727B (en) * 1953-09-30 Krupp Koppers Gmbh PROCEDURE FOR OPERATING EXTRACTION AND / OR EXTRACTIVE DISTILLATION DEVICES, USING N-SUBSTITUATED MORPHOLINS AS A SELECTIVE SOLVENT.
BE532147A (en) * 1953-09-30
FR1178495A (en) * 1956-05-19 1959-05-11 Egyesuelt Izzolampa Process for obtaining tungsten metallic bodies containing thorium dioxide
US3082174A (en) * 1959-11-17 1963-03-19 North American Phillips Compan Method of manufacturing a non-evaporating getter and getter made by this method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907948A (en) * 1979-02-05 1990-03-13 Saes Getters S.P.A. Non-evaporable ternary gettering alloy, particularly for the sorption of water and water vapor in nuclear reactor fuel elements

Also Published As

Publication number Publication date
NL285519A (en) 1965-02-10
CH423002A (en) 1966-10-31
US3187885A (en) 1965-06-08
DK108584C (en) 1968-01-08
BE625037A (en)
DE1224845B (en) 1966-09-15

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