Improvements in or relating to electron discharge devices employing secondary-electron-emission and electrodes for use therein

670,583. Electrode materials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 26, 1946 [Nov. 7, 1945], No. 9302/48. Divided out of 670,554. Class 39 (i). A mixture of refractory oxides consisting partly but not wholly of alkaline earth oxide is sintered and applied as the coating of a secondary electro...

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Bibliographische Detailangaben
Hauptverfasser:	BULL CABOT SEATON, ATHERTON ALBERT HORACE
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	670,583. Electrode materials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 26, 1946 [Nov. 7, 1945], No. 9302/48. Divided out of 670,554. Class 39 (i). A mixture of refractory oxides consisting partly but not wholly of alkaline earth oxide is sintered and applied as the coating of a secondary electron emitting electrode. The sintering is carried out by heating the mixture in air at 1200‹ C. for a sufficient period to produce surface fusion or aggregation of the particles. The subject-matter is otherwise as described in Specification 670,554. Specification 670,582 also is referred to.