GB877756A - Cathode heater - Google Patents
Cathode heaterInfo
- Publication number
- GB877756A GB877756A GB4357859A GB4357859A GB877756A GB 877756 A GB877756 A GB 877756A GB 4357859 A GB4357859 A GB 4357859A GB 4357859 A GB4357859 A GB 4357859A GB 877756 A GB877756 A GB 877756A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heater
- cathode
- strip
- cathode heater
- germeshausen
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
- H01J1/22—Heaters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
- H01J17/063—Indirectly heated cathodes, e.g. by the discharge itself
Landscapes
- Resistance Heating (AREA)
Abstract
877,756. Cathode heaters. EDGERTON, GERMESHAUSEN & GRIER Inc. Dec. 22. 1959, No. 43578/59. Class 39(3). [Also in Group XL(a)] A cathode heater comprises a continuous planar strip of conductive material having successively disposed portions which are parallel to, but spaced from, one another and' lie in a common plane. The strip is covered throughout with an insulating coating, e.g. by spraying with atomized molten alumina. the ;heater, which may be cut from sheet molybdenum, may be of the forms shown, or may be of zig-zag form with a rectangular peripheral configuration or a single spiral. To obtain the desired electrical resistance the heater may be dipped in an acid solution. Specification 848,340 is referred to.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL246837D NL246837A (en) | 1959-12-22 | ||
GB4357859A GB877756A (en) | 1959-12-22 | 1959-12-22 | Cathode heater |
DEE18699A DE1143589B (en) | 1959-12-22 | 1959-12-28 | Method of manufacturing a heater for cathodes of electrical discharge tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4357859A GB877756A (en) | 1959-12-22 | 1959-12-22 | Cathode heater |
Publications (1)
Publication Number | Publication Date |
---|---|
GB877756A true GB877756A (en) | 1961-09-20 |
Family
ID=10429377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4357859A Expired GB877756A (en) | 1959-12-22 | 1959-12-22 | Cathode heater |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB877756A (en) |
NL (1) | NL246837A (en) |
-
0
- NL NL246837D patent/NL246837A/xx unknown
-
1959
- 1959-12-22 GB GB4357859A patent/GB877756A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL246837A (en) |
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