CH225867A - Process for the production of tubular tungsten incandescent cathodes for electron tubes. - Google Patents
Process for the production of tubular tungsten incandescent cathodes for electron tubes.Info
- Publication number
- CH225867A CH225867A CH225867DA CH225867A CH 225867 A CH225867 A CH 225867A CH 225867D A CH225867D A CH 225867DA CH 225867 A CH225867 A CH 225867A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- electron tubes
- tungsten incandescent
- tubular tungsten
- incandescent cathodes
- Prior art date
Links
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title 1
- 229910052721 tungsten Inorganic materials 0.000 title 1
- 239000010937 tungsten Substances 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
- B01D29/46—Edge filtering elements, i.e. using contiguous impervious surfaces of flat, stacked bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
- B01D25/34—Removal of the filter cakes by moving, e.g. rotating, the filter elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/08—Machine or engine aggregates in dams or the like; Conduits therefor, e.g. diffusors
-
- 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
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49881—Assembling or joining of separate helix [e.g., screw thread]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49982—Coating
- Y10T29/49986—Subsequent to metal working
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microwave Tubes (AREA)
- General Details Of Gearings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE90339X | 1939-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH225867A true CH225867A (en) | 1943-02-28 |
Family
ID=5643176
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH224719D CH224719A (en) | 1939-03-09 | 1940-02-19 | Distribution pipeline. |
CH225867D CH225867A (en) | 1939-03-09 | 1940-03-01 | Process for the production of tubular tungsten incandescent cathodes for electron tubes. |
CH224634D CH224634A (en) | 1939-03-09 | 1940-03-08 | Edge filter. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH224719D CH224719A (en) | 1939-03-09 | 1940-02-19 | Distribution pipeline. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH224634D CH224634A (en) | 1939-03-09 | 1940-03-08 | Edge filter. |
Country Status (6)
Country | Link |
---|---|
US (1) | US2269081A (en) |
BE (1) | BE438226A (en) |
CH (3) | CH224719A (en) |
FR (1) | FR868480A (en) |
IT (1) | IT381230A (en) |
NL (1) | NL53627C (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2589521A (en) * | 1952-03-18 | Heater | ||
US2454318A (en) * | 1943-04-24 | 1948-11-23 | Westinghouse Electric Corp | Method of fabricating electron discharge devices |
US2543439A (en) * | 1945-05-02 | 1951-02-27 | Edward A Coomes | Method of manufacturing coated elements for electron tubes |
US2693546A (en) * | 1948-07-10 | 1954-11-02 | Eitel Mccullough Inc | Electron emitter for electron tubes |
US2652621A (en) * | 1949-02-25 | 1953-09-22 | Gen Electric | Method of making a unitary thermionic filament structure |
US2647067A (en) * | 1949-09-10 | 1953-07-28 | Eitel Mccullough Inc | Electron emitter for electron tubes |
US2662990A (en) * | 1950-09-21 | 1953-12-15 | Collins Radio Co | Resnatron filament basket |
US2717975A (en) * | 1951-03-30 | 1955-09-13 | Wihtol Weltis | Cathodes for electron tubes |
US2721372A (en) * | 1951-06-30 | 1955-10-25 | Philips Corp | Incandescible cathodes |
US2814753A (en) * | 1954-10-12 | 1957-11-26 | Eugene N Wyler | Cathode support |
US2855536A (en) * | 1954-10-12 | 1958-10-07 | Eugene N Wyler | Cathode |
US2879432A (en) * | 1956-03-16 | 1959-03-24 | Gen Electric | Electron emitter |
US3484644A (en) * | 1967-02-13 | 1969-12-16 | Gen Electric | Tungsten powder bonded filament connection for incandescent lamps and method of manufacture |
US4781640A (en) * | 1985-01-24 | 1988-11-01 | Varian Associates, Inc. | Basket electrode shaping |
US5041041A (en) * | 1986-12-22 | 1991-08-20 | Gte Products Corporation | Method of fabricating a composite lamp filament |
-
0
- NL NL53627D patent/NL53627C/xx active
- BE BE438226D patent/BE438226A/xx unknown
- IT IT381230D patent/IT381230A/it unknown
-
1940
- 1940-02-19 CH CH224719D patent/CH224719A/en unknown
- 1940-03-01 CH CH225867D patent/CH225867A/en unknown
- 1940-03-08 CH CH224634D patent/CH224634A/en unknown
- 1940-03-29 US US326602A patent/US2269081A/en not_active Expired - Lifetime
- 1940-12-28 FR FR868480D patent/FR868480A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH224634A (en) | 1942-12-15 |
US2269081A (en) | 1942-01-06 |
CH224719A (en) | 1942-12-15 |
FR868480A (en) | 1941-12-31 |
BE438226A (en) | 1900-01-01 |
NL53627C (en) | 1900-01-01 |
IT381230A (en) | 1900-01-01 |
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