US2189906A - Electronic discharge tube - Google Patents
Electronic discharge tube Download PDFInfo
- Publication number
- US2189906A US2189906A US120895A US12089537A US2189906A US 2189906 A US2189906 A US 2189906A US 120895 A US120895 A US 120895A US 12089537 A US12089537 A US 12089537A US 2189906 A US2189906 A US 2189906A
- Authority
- US
- United States
- Prior art keywords
- discharge tube
- vessel
- electronic discharge
- ceramic
- electrodes
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/20—Seals between parts of vessels
- H01J5/22—Vacuum-tight joints between parts of vessel
- H01J5/26—Vacuum-tight joints between parts of vessel between insulating and conductive parts of vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
- H01J2893/0037—Solid sealing members other than lamp bases
- H01J2893/0041—Direct connection between insulating and metal elements, in particular via glass material
Definitions
- y Agde notes the anode
- K the cathode
- G the grid which inthe case represented by way of example is a wire helix whose turns E, F are supported by shanks E, F in a well known manner. These are fastened in a socket 3 of ⁇ a metal disc B, this disc thus supporting the grid G by means of the shanks E, F.
- - Cathode Kis' arranged to extend through socket y3.
- Anode A has ⁇ cooling ns Wthe two outer of which4 are each integral with a ring P.
- the discharge vessel D is composed of ceramic portion Wl, W2, Wand a glass 4top U.
- the portions WE. W2 are held together by ametal ring Q shrunk thereon. Equally, the portions 4W2, W3 are held together by the two rings P shrunk onto them.
- Portion U is provided with a tubular extension if, where the vessel is connected with the pump and where it is sealed off, as is well known with devices of this kind. Glass portion U is united with the ceramic portion W3 by melting.
- the ceramic portions Wl, W2, W3 ⁇ are shaped outside by grinding so as to intimately contact with the rings P, Q shrunk thereon.
- attention is called to the factl that the glass walls' of discharge vessels donot allow of tooling them in this manner, especially because they are too thin in this regard.
- the airtightness alorded in this way is raised to vacuum tightness by melting ⁇ glass or a ceramic glazing or the like onto the butt joints so as to produce melting spots S.
- the leads of the electrodes are sealed into the crestaim ori-"HCE wall .of the vessel, except ⁇ those portions thereof which are annular and are shrunk ontoV theves-V sel, such as the rings P. f :V
- Ring Q any other ring ofsimilar disposition,imay form one coatingof a condenser C ⁇ whosepther coating is a metal ring 2, ⁇ an annurlar dielectric 4 being arranged between the two.
- the ⁇ path between the vl() e spots Sfand the main body or active part of ther electrodes is made as largedasv ⁇ possible. This should bedone especially becausethe anode A has a relativelyflarge mass. In the example represented this path is formed bythe rings Pand the l outer cooling nn W integraltherewith, ⁇ thus being .long enough toprevent the .heat from being carried away to an extent elect o'fy the melting.
- the invention is not only ⁇ suitable for combinn ing ceramic parts with form a vacuum vessel metallic ones in order to as ⁇ described herebefore,
- Discharge tubes as providedv ⁇ by the invention are much less liable knownand besides are easy to manufacture.
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Laser Beam Processing (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE488870X | 1936-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2189906A true US2189906A (en) | 1940-02-13 |
Family
ID=6543871
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US120895A Expired - Lifetime US2189906A (en) | 1936-01-16 | 1937-01-16 | Electronic discharge tube |
US120894A Expired - Lifetime US2164910A (en) | 1936-01-16 | 1937-01-16 | Electronic discharge tube |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US120894A Expired - Lifetime US2164910A (en) | 1936-01-16 | 1937-01-16 | Electronic discharge tube |
Country Status (5)
Country | Link |
---|---|
US (2) | US2189906A (xx) |
AT (2) | AT151143B (xx) |
FR (1) | FR816185A (xx) |
GB (1) | GB488870A (xx) |
NL (1) | NL45935C (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2562820A (en) * | 1950-03-15 | 1951-07-31 | Avco Mfg Corp | Electron tube structure |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE748304C (de) * | 1937-12-28 | 1953-06-22 | Telefunken Gmbh | Ultrakurzwellenroehre mit kuenstlich gekuehlter Anode |
US2443605A (en) * | 1941-06-26 | 1948-06-22 | Hartford Nat Bank & Trust Co | Insulated casing |
US2460132A (en) * | 1943-11-10 | 1949-01-25 | Gen Electric | Electrical discharge device |
US2430856A (en) * | 1946-01-26 | 1947-11-18 | Gen Electric | Electric discharge device |
US2812466A (en) * | 1953-06-08 | 1957-11-05 | Eitel Mccullough Inc | Ceramic electron tube |
US2907911A (en) * | 1956-01-16 | 1959-10-06 | Gen Electric | Electron discharge device |
-
0
- NL NL45935D patent/NL45935C/xx active
-
1936
- 1936-12-29 AT AT151143D patent/AT151143B/de active
- 1936-12-29 AT AT158316D patent/AT158316B/de active
-
1937
- 1937-01-09 FR FR816185D patent/FR816185A/fr not_active Expired
- 1937-01-15 GB GB1301/37A patent/GB488870A/en not_active Expired
- 1937-01-16 US US120895A patent/US2189906A/en not_active Expired - Lifetime
- 1937-01-16 US US120894A patent/US2164910A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2562820A (en) * | 1950-03-15 | 1951-07-31 | Avco Mfg Corp | Electron tube structure |
Also Published As
Publication number | Publication date |
---|---|
FR816185A (fr) | 1937-08-02 |
NL45935C (xx) | |
AT158316B (de) | 1940-03-26 |
US2164910A (en) | 1939-07-04 |
AT151143B (de) | 1937-10-25 |
GB488870A (en) | 1938-07-15 |
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