FR637133A - Perfectionnements aux cathodes thermioniques - Google Patents
Perfectionnements aux cathodes thermioniquesInfo
- Publication number
- FR637133A FR637133A FR637133DA FR637133A FR 637133 A FR637133 A FR 637133A FR 637133D A FR637133D A FR 637133DA FR 637133 A FR637133 A FR 637133A
- Authority
- FR
- France
- Prior art keywords
- thermionic cathodes
- thermionic
- cathodes
- 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
- 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
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/08—Manufacture of heaters for indirectly-heated cathodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Resistance Heating (AREA)
- Microwave Tubes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17046/26A GB278787A (en) | 1926-07-07 | 1926-07-07 | Improvements in or relating to thermionic cathodes |
Publications (1)
Publication Number | Publication Date |
---|---|
FR637133A true FR637133A (fr) | 1928-04-24 |
Family
ID=10088278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR637133D Expired FR637133A (fr) | 1926-07-07 | 1927-07-06 | Perfectionnements aux cathodes thermioniques |
Country Status (6)
Country | Link |
---|---|
US (1) | US2075910A (fr) |
AT (1) | AT110360B (fr) |
DE (1) | DE583836C (fr) |
FR (1) | FR637133A (fr) |
GB (1) | GB278787A (fr) |
NL (1) | NL33511C (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2609590A (en) * | 1952-09-09 | Method of manufacturing a | ||
DE745678C (de) * | 1932-01-17 | 1944-11-30 | Indirekt geheizte Kathode fuer Braunsche Roehren | |
DE760248C (de) * | 1933-11-08 | 1953-10-19 | Georg Seibt Nachf Dr | Indirekt geheizte Kathode fuer Kathodenstrahlroehren |
DE741396C (de) * | 1937-07-17 | 1943-11-10 | Sueddeutsche Telefon App Kabel | Verfahren zur Herstellung von isolierten gewendelten Heizdraehten fuer indirekt geheizte Kathoden |
US2543439A (en) * | 1945-05-02 | 1951-02-27 | Edward A Coomes | Method of manufacturing coated elements for electron tubes |
NL69250C (fr) * | 1946-03-05 | |||
US2632083A (en) * | 1950-12-01 | 1953-03-17 | Luz E Shaffer | Thermostatically heated limit switch |
US2900554A (en) * | 1951-06-01 | 1959-08-18 | Rca Corp | Sleeve for indirectly heated cathode |
BE514762A (fr) * | 1951-10-11 | |||
US2711390A (en) * | 1952-11-18 | 1955-06-21 | Sylvania Electric Prod | Method of making composite thermionically emissive cathode material |
DE1099086B (de) * | 1954-03-31 | 1961-02-09 | Siemens Ag | Verfahren zur Herstellung einer Isolierschicht fuer Heizer von mittelbar geheizten Kathoden |
US2932759A (en) * | 1954-07-21 | 1960-04-12 | Univ Minnesota | Vacuum tube |
US3066042A (en) * | 1959-11-27 | 1962-11-27 | Engelhard Ind Inc | Method of coating metal |
US3206329A (en) * | 1962-01-08 | 1965-09-14 | Gen Electric | Insulation coating for indirectly heated cathode heaters |
US3175118A (en) * | 1962-05-28 | 1965-03-23 | Gen Electric | Low power heater |
US3581144A (en) * | 1969-03-27 | 1971-05-25 | Gen Electric | Metal-clad insulated electrical heater |
-
0
- NL NL33511D patent/NL33511C/xx active
-
1926
- 1926-07-07 GB GB17046/26A patent/GB278787A/en not_active Expired
-
1927
- 1927-06-22 AT AT110360D patent/AT110360B/de active
- 1927-06-22 DE DEM100147D patent/DE583836C/de not_active Expired
- 1927-06-24 US US201184A patent/US2075910A/en not_active Expired - Lifetime
- 1927-07-06 FR FR637133D patent/FR637133A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL33511C (fr) | |
GB278787A (en) | 1927-10-07 |
US2075910A (en) | 1937-04-06 |
AT110360B (de) | 1928-08-10 |
DE583836C (de) | 1933-09-18 |
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