BE569642A - - Google Patents
Info
- Publication number
- BE569642A BE569642A BE569642DA BE569642A BE 569642 A BE569642 A BE 569642A BE 569642D A BE569642D A BE 569642DA BE 569642 A BE569642 A BE 569642A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
- H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
- H01J41/06—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of cold cathodes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F9/00—Diffusion pumps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/42—Means structurally associated with the tube or lamp for indicating defects or previous use
-
- 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
- H01J9/42—Measurement or testing during manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1082698X | 1957-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE569642A true BE569642A (en:Method) |
Family
ID=9610811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE569642D BE569642A (en:Method) | 1957-07-26 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE569642A (en:Method) |
| DE (1) | DE1082698B (en:Method) |
| LU (1) | LU36278A1 (en:Method) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE442834C (de) * | 1922-09-09 | 1927-04-08 | Bbc Brown Boveri & Cie | Verfahren zum selbsttaetigen Betrieb der Entlueftungseinrichtung von Quecksilberdampfgleichrichtern |
| DE650178C (de) * | 1935-08-25 | 1937-09-15 | Patra Patent Treuhand | Entlueftungseinrichtung mit Vor- und Hochvakuumpumpe |
| US2442518A (en) * | 1945-03-31 | 1948-06-01 | Gen Electric | Electric control circuit |
-
0
- LU LU36278D patent/LU36278A1/xx unknown
- BE BE569642D patent/BE569642A/xx unknown
-
1958
- 1958-07-25 DE DEC17263A patent/DE1082698B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1082698B (de) | 1960-06-02 |
| LU36278A1 (en:Method) |