US3650593A - Process of filling discharge tubes constructed without exhaust tube - Google Patents

Process of filling discharge tubes constructed without exhaust tube Download PDF

Info

Publication number: US3650593A
Authority: US; United States
Prior art keywords: bulb; ceramic; mixture; electrode; process according
Prior art date: 1968-11-22
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

US868116A

Other languages

English (en)

Inventor

Bela Kerekes

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.)

Egyesuelt Izzolampa es Villamossagi Rt

Original Assignee

Egyesuelt Izzolampa es Villamossagi Rt

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.)

1968-11-22

Filing date

1969-10-21

Publication date

1972-03-21

1969-10-21 Application filed by Egyesuelt Izzolampa es Villamossagi Rt filed Critical Egyesuelt Izzolampa es Villamossagi Rt

1972-03-21 Application granted granted Critical

1972-03-21 Publication of US3650593A publication Critical patent/US3650593A/en

1989-03-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 19
239000000919 ceramic Substances 0.000 claims abstract description 28
229910052751 metal Inorganic materials 0.000 claims abstract description 24
239000002184 metal Substances 0.000 claims abstract description 24
239000000203 mixture Substances 0.000 claims abstract description 19
238000007789 sealing Methods 0.000 claims abstract description 12
239000000126 substance Substances 0.000 claims abstract description 12
239000011230 binding agent Substances 0.000 claims abstract description 10
238000010438 heat treatment Methods 0.000 claims abstract description 7
TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 7
239000011541 reaction mixture Substances 0.000 claims abstract description 5
239000002775 capsule Substances 0.000 claims description 11
229910045601 alloy Inorganic materials 0.000 claims description 5
239000000956 alloy Substances 0.000 claims description 5
229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
150000001342 alkaline earth metals Chemical class 0.000 claims description 4
239000003513 alkali Substances 0.000 claims description 3
238000002844 melting Methods 0.000 claims description 3
230000008018 melting Effects 0.000 claims description 3
229910000573 alkali metal alloy Inorganic materials 0.000 claims description 2
229910000941 alkaline earth metal alloy Inorganic materials 0.000 claims description 2
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
229910052783 alkali metal Inorganic materials 0.000 description 5
150000001340 alkali metals Chemical class 0.000 description 5
239000000463 material Substances 0.000 description 5
229910052708 sodium Inorganic materials 0.000 description 5
239000011734 sodium Substances 0.000 description 5
239000011521 glass Substances 0.000 description 3
229910052758 niobium Inorganic materials 0.000 description 3
239000010955 niobium Substances 0.000 description 3
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
238000010276 construction Methods 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
150000002736 metal compounds Chemical class 0.000 description 2
150000002739 metals Chemical class 0.000 description 2
GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 1
229910000531 Co alloy Inorganic materials 0.000 description 1
KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
KGWWEXORQXHJJQ-UHFFFAOYSA-N [Fe].[Co].[Ni] Chemical compound [Fe].[Co].[Ni] KGWWEXORQXHJJQ-UHFFFAOYSA-N 0.000 description 1
229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
230000004888 barrier function Effects 0.000 description 1
LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 1
229910052792 caesium Inorganic materials 0.000 description 1
TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
238000001311 chemical methods and process Methods 0.000 description 1
AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000005429 filling process Methods 0.000 description 1
230000004927 fusion Effects 0.000 description 1
229910001195 gallium oxide Inorganic materials 0.000 description 1
229910052735 hafnium Inorganic materials 0.000 description 1
VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
239000000155 melt Substances 0.000 description 1
150000002821 niobium Chemical class 0.000 description 1
239000010453 quartz Substances 0.000 description 1
VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
150000003385 sodium Chemical class 0.000 description 1
XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 description 1
238000005476 soldering Methods 0.000 description 1
239000010935 stainless steel Substances 0.000 description 1
229910001220 stainless steel Inorganic materials 0.000 description 1
239000010936 titanium Substances 0.000 description 1
229910052719 titanium Inorganic materials 0.000 description 1
229910052720 vanadium Inorganic materials 0.000 description 1
GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
229910052724 xenon Inorganic materials 0.000 description 1
FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
229910052726 zirconium Inorganic materials 0.000 description 1

Images

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
- 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
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/34—Joining base to vessel

Definitions

the material of the exhaust tube should be weldable when cold; furthermore, it should be economically machinable.
the thermal expansion of the metal should be such that no stresses will be set up in the fitted tube which could cause any fissures or cracks and fracture, and so forth.
niobium for the aforesaid purpose.
This niobium body is fused to the material of the tube, for example by means of a special glass (for example, according toBritish Pat. No. 961,670), the coefficient of thermal expansion of this glass matching that of the tube and the niobium.
a special glass for example, according toBritish Pat. No. 961,670
Another solution of the problem is described in US. Pat. No. 3,385,463, in which 90 percent of the binder is A1 while the remaining percent of alkaline earth metal oxides or gallium oxide, beryllium oxide, magnesiurn oxide.
a barrier layer of titanium, zirconium, vanadium or hafnium is used, for example.
the material of the exhaust tube may be for example stainless steel or even an iron-nickel-cobalt alloy of iron, in which case, however, especially at elevated temperatures, hard soldering, sealing thereof, etc., is comparatively difficult to carry out.
the aim of our invention is to improve the technical situation which has been described above by overcoming the aforementioned difficulties.
the invention concerns a ceramic lamp and corresponding filling process, in which no exhaust tube is used, and in which no such tube is provided.
products to be regarded as typical vacuum engineering products such as, for example, incandescent lamps, discharge tubes and so forth, are provided with exhaust tubes. Exhaust or evacuation of the air from the lamp bulb takes place through this exhaust tube, and the same exhaust tube is used for filling the lamp bulb with the discharge substance necessary for the operation of the lamp.
the situation is relatively simple.
the bulbs of which consist of translucent aluminum oxide the exhaust tube, as already outlined, cannot be made of aluminum oxide, that is to say, therefore, of the material of the bulb if it is necessary to combine together the sealing of the bulb and the application of the exhaust tube, in which case the aforesaid difficulties arise.
the sole figure of the drawing is the view partially in axial section and partially in elevationof a ceramic lamp made according to the invention.
the ceramic tube 4 shown is provided with the cathodes l, and then the cap 6 is fixed to the ceramic tube by means of the glass-like binder 5.
the also glass-like binder 7 secures'both the cap 6 and the electrode 8.
fixed to the electrode 8 is the cuplike container 3 carrying the reaction mixture 2.
this substance may be a mixture of sodium lamps, for example, this substance may be a mixture of sodium tungstate and zirconium powder.
Final sealing of the bulb is preferably carried out by heating the binder 5 by radiant heat until it melts, the tube being allowed to fall under its own weight into the cap 6, a xenon pressure 20-60 mm. Hg, which assists ignition of the lamp, being left at room temperature in the interior of the bulb.
This source of sodium simplifies the difficulties of supplying the discharge substance, because by its use sealing of the bulb may be effected without the use of an exhaust tube. Handling of the chemical compounds is easier, since the alkali (sodium) compounds to be reduced are stable in the air.
metal compounds for example, sodium and cesium or other metal compounds known in lamp technology
these metals or their mixtures possibly their alloyswe are here thinkingmainly of the alkali metals -may also be sealed airtight in metal capsules and thus introduced into the bulb 4, in which case by melting the metal capsules by means of high frequency the metals maintaining the discharge may be vaporized from the mixture or the alloys.
a process of filling a lamp adapted for operation at high temperature and provided with a cylindrical ceramic bulb without an exhaust tube with the discharge substances comprising introducing an inert atmosphere at a pressure of 20-60 mm. Hg into the bulb before sealing it from the atmosphere, introducing an electrode and a cup containing a mixture which liberates metal vapor into a hole in a ceramic cap for the ceramic tube, uniting the cap to the electrode by a glasslike binder, introducing the electrode into the ceramic bulb, airtightly sealing the bulb and the cap by means of a glass-like binder, and thereafter heating the mixture to reaction temperature.
reaction mixture is heated by high frequency electrical wave heating.

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Vessels And Coating Films For Discharge Lamps (AREA)
Discharge Lamp (AREA)

US868116A 1968-11-22 1969-10-21 Process of filling discharge tubes constructed without exhaust tube Expired - Lifetime US3650593A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
HUEE001596		1968-11-22

Publications (1)

Publication Number	Publication Date
US3650593A true US3650593A (en)	1972-03-21

Family

ID=10995279

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
US868116A Expired - Lifetime US3650593A (en)	1968-11-22	1969-10-21	Process of filling discharge tubes constructed without exhaust tube

Country Status (8)

Country	Link
US (1)	US3650593A (de)
AT (1)	AT300121B (de)
BE (1)	BE742037A (de)
CH (1)	CH498486A (de)
DE (1)	DE1949656A1 (de)
FR (1)	FR2023865A1 (de)
GB (1)	GB1292967A (de)
NL (1)	NL6917395A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3825788A (en) *	1972-03-01	1974-07-23	Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh	High pressure metal vapor discharge lamp with tubular current lead including filler release construction
DE2535986A1 (de) *	1974-12-20	1976-07-01	Egyesuelt Izzolampa	Elektrische hochdruck-entladungsroehre
US3967871A (en) *	1972-06-23	1976-07-06	Egyesult Izzolampa Es Villamossagi Resvenytarsasag	Process for manufacturing tubeless vacuum electric discharge lamps
US4359662A (en) *	1979-07-11	1982-11-16	Ushio Denki Kabushikikaisha	Flash discharge lamp
US20060209919A1 (en) *	2002-02-22	2006-09-21	Trumpf Laser Gmbh + Co. Kg	Pumping light source for laser-active media
US20080030136A1 (en) *	2006-08-07	2008-02-07	Lg Electronics Inc.	Plasma display panel
EP1887603A3 (de) *	2006-08-07	2009-10-21	LG Electronics Inc.	Plasmaanzeigetafel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
HU179748B (en) *	1974-01-15	1982-12-28	Ferenc Puskas	Cathode of a metal ceramic sintered body produced by dust metalurgy for closing discharge tube of sodium vapour lamp and process for the production thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2012237A (en) *		1935-08-20		Cathode
US2087735A (en) *	1935-10-09	1937-07-20	Gen Electric	Gaseous electric discharge lamp device
GB502321A (en) *	1937-07-09	1939-03-15	Philips Nv	Improvements in electric discharge tubes
US2460739A (en) *	1946-04-17	1949-02-01	Gen Electric	Electrode construction
US3303377A (en) *	1962-08-17	1967-02-07	Philips Corp	High pressure electric discharge tube
US3385463A (en) *	1965-03-11	1968-05-28	Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh	Alkali metal vapor lamp
US3390296A (en) *	1966-03-14	1968-06-25	Trw Inc	Electric discharge device having spaced electrodes sealed to opposite end of envelope

1969
- 1969-09-19 AT AT891269A patent/AT300121B/de not_active IP Right Cessation
- 1969-09-26 DE DE19691949656 patent/DE1949656A1/de active Pending
- 1969-10-21 US US868116A patent/US3650593A/en not_active Expired - Lifetime
- 1969-10-27 CH CH1614669A patent/CH498486A/de not_active IP Right Cessation
- 1969-11-07 GB GB54716/69A patent/GB1292967A/en not_active Expired
- 1969-11-17 FR FR6939486A patent/FR2023865A1/fr not_active Withdrawn
- 1969-11-19 NL NL6917395A patent/NL6917395A/xx unknown
- 1969-11-21 BE BE742037D patent/BE742037A/xx not_active IP Right Cessation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2012237A (en) *		1935-08-20		Cathode
US2087735A (en) *	1935-10-09	1937-07-20	Gen Electric	Gaseous electric discharge lamp device
GB502321A (en) *	1937-07-09	1939-03-15	Philips Nv	Improvements in electric discharge tubes
US2460739A (en) *	1946-04-17	1949-02-01	Gen Electric	Electrode construction
US3303377A (en) *	1962-08-17	1967-02-07	Philips Corp	High pressure electric discharge tube
US3385463A (en) *	1965-03-11	1968-05-28	Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh	Alkali metal vapor lamp
US3390296A (en) *	1966-03-14	1968-06-25	Trw Inc	Electric discharge device having spaced electrodes sealed to opposite end of envelope

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3825788A (en) *	1972-03-01	1974-07-23	Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh	High pressure metal vapor discharge lamp with tubular current lead including filler release construction
US3967871A (en) *	1972-06-23	1976-07-06	Egyesult Izzolampa Es Villamossagi Resvenytarsasag	Process for manufacturing tubeless vacuum electric discharge lamps
DE2535986A1 (de) *	1974-12-20	1976-07-01	Egyesuelt Izzolampa	Elektrische hochdruck-entladungsroehre
US4221987A (en) *	1974-12-20	1980-09-09	Egyesult Izzolampa Es Villamossagi Reszvenytarsasag	High-pressure discharge tube operable in the open air without outer protective envelope
US4359662A (en) *	1979-07-11	1982-11-16	Ushio Denki Kabushikikaisha	Flash discharge lamp
US20060209919A1 (en) *	2002-02-22	2006-09-21	Trumpf Laser Gmbh + Co. Kg	Pumping light source for laser-active media
US20080030136A1 (en) *	2006-08-07	2008-02-07	Lg Electronics Inc.	Plasma display panel
EP1887603A3 (de) *	2006-08-07	2009-10-21	LG Electronics Inc.	Plasmaanzeigetafel

Also Published As

Publication number	Publication date
FR2023865A1 (de)	1970-08-21
AT300121B (de)	1972-07-10
GB1292967A (en)	1972-10-18
DE1949656A1 (de)	1970-06-11
CH498486A (de)	1970-10-31
NL6917395A (de)	1970-05-26
BE742037A (de)	1970-05-04

Legal Events

Date	Code	Title	Description
1983-03-08	CC	Certificate of correction

Publication	Publication Date	Title
US3726582A (en)	1973-04-10	Electric discharge lamp comprising container of densely sintered aluminum oxide
US3363134A (en)	1968-01-09	Arc discharge lamp having polycrystalline ceramic arc tube
US3913999A (en)	1975-10-21	Manufacturing electric devices having sealed envelopes
JPH0542769B2 (de)	1993-06-29
US7964235B2 (en)	2011-06-21	Method of treating a ceramic discharge vessel
US3448319A (en)	1969-06-03	Niobium end seal
US3650593A (en)	1972-03-21	Process of filling discharge tubes constructed without exhaust tube
US4160930A (en)	1979-07-10	Electric discharge lamp with annular current conductor
US4539508A (en)	1985-09-03	Method of producing a low-pressure mercury vapor discharge lamp
US3659138A (en)	1972-04-25	Alumina-metal sealed lamp apparatus
US3363133A (en)	1968-01-09	Electric discharge device having polycrystalline alumina end caps
US4092560A (en)	1978-05-30	Vapor discharge lamp cermet electrode-closure and method of making
EP1137047B1 (de)	2007-03-14	Hochdruckentladungslampe
US2175361A (en)	1939-10-10	Lamp unit
US3983440A (en)	1976-09-28	Discharge lamp component
CA2091470A1 (en)	1993-10-29	Method and apparatus for introducing mercury into arc discharge lamps
US3628846A (en)	1971-12-21	Method of making a vapor discharge lamp
EP1435642B1 (de)	2009-09-02	Entladungsröhre für eine hochdruck-entladungslampe und hochdruck-entladungslampe
US5288255A (en)	1994-02-22	Method of manufacturing a high-pressure discharge lamp with end seal evaporation barrier
US2114869A (en)	1938-04-19	Quartz-to-metal seal
US3832589A (en)	1974-08-27	High-pressure metal vapor discharge lamps, particularly sodium vapor lamps with hermetic seal
US3716744A (en)	1973-02-13	Hermetic end seals for envelope of a metal vapor lamp
GB1423981A (en)	1976-02-04	Discharge lamp
US3519406A (en)	1970-07-07	Discharge tube seal
US2583388A (en)	1952-01-22	Conducting seal for high-pressure lamps