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Koninklijke Philips NV
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Philips Gloeilampenfabrieken NV
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Publication date
Application filed by Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Application grantedgrantedCritical
Publication of DE548825CpublicationCriticalpatent/DE548825C/de
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
C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal
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Chemical & Material Sciences
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Engineering & Computer Science
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Ceramic Engineering
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Life Sciences & Earth Sciences
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Chemical Kinetics & Catalysis
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General Chemical & Material Sciences
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Geochemistry & Mineralogy
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Materials Engineering
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Organic Chemistry
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Vessels And Coating Films For Discharge Lamps
(AREA)
DE1930548825D1929-11-301930-11-08Elektrische Gluehlampe oder Entladungsroehre
ExpiredDE548825C
(de)
Stromeinfuehrungsdraht fuer aus Borosilikatglas bestehende Gefaesse, insbesondere fuer elek-trische Leuchtroehren mit Metalldampffuellung, welcher aus einer Nickel-Wolfram-Legierung, gegebenenfalls mit Zusatz von Kobalt, besteht
Elektrische Hochdruckquecksilberdampfentladungsroehre aus Quarz, bei der die Stromzufuehrungsdraehte unter Zwischenfuegung eines oder mehrerer UEbergangsglaeser durch die Quarzwand gefuehrt sind
Verfahren zum Ziehbarmachen von spröden Metallen, wie Wolfram, Molybdän, Uran oder dgl. bzw. deren Legierungen, insbesondere zur Herstellung von Metallfäden für elektrische Glühlampen.
Elektromagnetisch betaetigte Zuendvorrichtung fuer Quecksilberdampfapparate aus Glas, bei der eine bewegliche Zuendelektrode in der Naehe der Quecksilberkathode federnd befestigt ist