FR1593831A - - Google Patents
Info
- Publication number
- FR1593831A FR1593831A FR1593831DA FR1593831A FR 1593831 A FR1593831 A FR 1593831A FR 1593831D A FR1593831D A FR 1593831DA FR 1593831 A FR1593831 A FR 1593831A
- Authority
- FR
- France
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/90—Electrical properties
- C04B2111/94—Electrically conducting materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0019—Chemical composition and manufacture
- H01J2893/002—Chemical composition and manufacture chemical
- H01J2893/0021—Chemical composition and manufacture chemical carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Microwave Tubes (AREA)
- Discharge Heating (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19671614680 DE1614680C3 (de) | 1967-12-13 | 1967-12-13 | Elektrisches Entladungsgefäß, insbe sondere HF Leistungsrohre |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1593831A true FR1593831A (fr) | 1970-06-01 |
Family
ID=5682024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1593831D Expired FR1593831A (fr) | 1967-12-13 | 1968-11-29 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3591822A (fr) |
FR (1) | FR1593831A (fr) |
GB (1) | GB1237948A (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1397853A (en) * | 1972-09-08 | 1975-06-18 | Siemens Ag | Heat-resistant gas-impermeable carbon bodies |
GB1397852A (en) * | 1972-09-08 | 1975-06-18 | Siemens Ag | Gas-tight and vacuu-tight carbon bodies |
DE2732960C2 (de) * | 1977-07-21 | 1982-04-01 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Glühkathode und Verfahren zu ihrer Herstellung |
US4302701A (en) * | 1978-07-07 | 1981-11-24 | Siemens Aktiengesellschaft | Directly heated cathode for an electron tube with coaxial electrode design |
DE2928993C2 (de) * | 1979-07-18 | 1982-12-09 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur Herstellung einer Röntgenröhren-Drehanode |
US4647748A (en) * | 1984-05-17 | 1987-03-03 | Smith International, Inc. | Graphite electrode construction and method of making |
US5220575A (en) * | 1989-04-04 | 1993-06-15 | Doduco Gmbh + Dr. Eugen Durrwachter | Electrode for pulsed gas lasers |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL42073C (fr) * | 1932-05-07 | |||
DE1191494B (de) * | 1961-09-29 | 1965-04-22 | Siemens Ag | Elektrode aus einem Verbundmetall fuer elektrische Entladungsgefaesse, insbesondere hochbelastbare Anode |
FR1344220A (fr) * | 1962-03-02 | 1963-11-29 | Thomson Houston Comp Francaise | Grille pour tubes électroniques |
US3348929A (en) * | 1962-04-16 | 1967-10-24 | Metalurgitschen Zd Lenin | Protecting carbon materials from oxidation |
US3320467A (en) * | 1963-10-01 | 1967-05-16 | Raytheon Co | Pyrographite wave structures |
-
1968
- 1968-11-29 FR FR1593831D patent/FR1593831A/fr not_active Expired
- 1968-12-12 GB GB1237948D patent/GB1237948A/en not_active Expired
- 1968-12-12 US US783328A patent/US3591822A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3591822A (en) | 1971-07-06 |
GB1237948A (fr) | 1971-07-07 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |