CA984441A - Apparatus and method for eliminating microcracks in alumina ceramic discharge devices - Google Patents

Apparatus and method for eliminating microcracks in alumina ceramic discharge devices

Info

Publication number
CA984441A
CA984441A CA181,546A CA181546A CA984441A CA 984441 A CA984441 A CA 984441A CA 181546 A CA181546 A CA 181546A CA 984441 A CA984441 A CA 984441A
Authority
CA
Canada
Prior art keywords
alumina ceramic
discharge devices
ceramic discharge
microcracks
eliminating
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
CA181,546A
Other languages
English (en)
Other versions
CA181546S (en
Inventor
William J. Knochel
Leo C. Werner
Francis C.M. Lin
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA984441A publication Critical patent/CA984441A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/50—Auxiliary parts or solid material within the envelope for reducing risk of explosion upon breakage of the envelope, e.g. for use in mines
CA181,546A 1972-09-22 1973-09-20 Apparatus and method for eliminating microcracks in alumina ceramic discharge devices Expired CA984441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29148972A 1972-09-22 1972-09-22

Publications (1)

Publication Number Publication Date
CA984441A true CA984441A (en) 1976-02-24

Family

ID=23120505

Family Applications (1)

Application Number Title Priority Date Filing Date
CA181,546A Expired CA984441A (en) 1972-09-22 1973-09-20 Apparatus and method for eliminating microcracks in alumina ceramic discharge devices

Country Status (10)

Country Link
US (1) US3780331A (de)
JP (1) JPS5245431B2 (de)
BE (1) BE805060A (de)
CA (1) CA984441A (de)
DE (1) DE2346132A1 (de)
ES (1) ES418972A1 (de)
FR (1) FR2200617B1 (de)
GB (1) GB1439045A (de)
IT (1) IT995463B (de)
NL (1) NL7313047A (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878421A (en) * 1974-01-31 1975-04-15 Atlantic Ultraviolet Corp High intensity ultraviolet lamp and method for producing the same
US4037128A (en) * 1975-09-12 1977-07-19 Izrail Aronovich Levin Three-phase discharge lamp
US4333032A (en) * 1978-09-25 1982-06-01 Gte Products Corporation High pressure sodium lamp containing barium getter
US4281274A (en) * 1979-08-01 1981-07-28 General Electric Co. Discharge lamp having vitreous shield
HU183876B (en) * 1982-04-02 1984-06-28 Egyesuelt Izzolampa Metal halogenid lamp
JPS59214154A (ja) * 1983-05-18 1984-12-04 Matsushita Electronics Corp 点灯管
US4963790A (en) * 1985-12-27 1990-10-16 Gte Products Corporation Low wattage metal halide discharge lamp
HU205485B (en) * 1986-10-20 1992-04-28 Tungsram Reszvenytarsasag Metal halogen discharge lamp containing alkali-halogenide additive
US4866328A (en) * 1988-04-15 1989-09-12 North American Philips Corp. Electric lamp with reduced internal photoelectron production
DE9002959U1 (de) * 1990-03-15 1990-05-17 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen, De
US5272407A (en) * 1991-12-18 1993-12-21 North American Philips Corporation Electric lamp having screens for reducing photo electron emission
WO2001039246A1 (en) * 1999-11-22 2001-05-31 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
WO2005001886A2 (en) * 2003-06-30 2005-01-06 Koninklijke Philips Electronics, N.V. Strapless mount for a light source and electric lamp having the same
DE102005038551B3 (de) * 2005-08-12 2007-04-05 W.C. Heraeus Gmbh Draht und Gestell für einseitig gesockelte Lampen auf Basis von Niob oder Tantal sowie Herstellungsverfahren und Verwendung
SE530760C2 (sv) * 2007-05-24 2008-09-09 Auralight Int Ab Högtrycksnatriumlampa
DE102007046899B3 (de) * 2007-09-28 2009-02-12 W.C. Heraeus Gmbh Stromdurchführung durch Keramikbrenner in Halogen-Metalldampflampen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6703447A (de) * 1967-03-03 1968-09-04
GB1223955A (en) * 1969-05-16 1971-03-03 Narva Veb High pressure electric discharge lamp
JPS4713360U (de) * 1971-03-09 1972-10-17
JPS4825985A (de) * 1971-08-10 1973-04-04

Also Published As

Publication number Publication date
GB1439045A (en) 1976-06-09
US3780331A (en) 1973-12-18
ES418972A1 (es) 1976-07-01
DE2346132A1 (de) 1974-03-28
FR2200617A1 (de) 1974-04-19
JPS4976359A (de) 1974-07-23
NL7313047A (de) 1974-03-26
JPS5245431B2 (de) 1977-11-16
FR2200617B1 (de) 1977-10-14
IT995463B (it) 1975-11-10
BE805060A (fr) 1974-03-20

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