BE693018A - - Google Patents
Info
- Publication number
- BE693018A BE693018A BE693018DA BE693018A BE 693018 A BE693018 A BE 693018A BE 693018D A BE693018D A BE 693018DA BE 693018 A BE693018 A BE 693018A
- 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
- H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
-
- 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
- H01J41/12—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps
- H01J41/14—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes
- H01J41/16—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of thermionic cathodes using gettering substances
-
- 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
- H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
- H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR47568A FR1478404A (en) | 1966-01-28 | 1966-01-28 | Improvements to pumping devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE693018A true BE693018A (en) | 1967-07-24 |
Family
ID=8599969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE693018D BE693018A (en) | 1966-01-28 | 1967-01-23 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE693018A (en) |
| DE (1) | DE1628447A1 (en) |
| FR (1) | FR1478404A (en) |
| GB (1) | GB1159333A (en) |
| NL (1) | NL6701312A (en) |
-
1966
- 1966-01-28 FR FR47568A patent/FR1478404A/en not_active Expired
-
1967
- 1967-01-23 BE BE693018D patent/BE693018A/xx unknown
- 1967-01-27 NL NL6701312A patent/NL6701312A/xx unknown
- 1967-01-27 DE DE19671628447 patent/DE1628447A1/en active Pending
- 1967-01-27 GB GB416167A patent/GB1159333A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1159333A (en) | 1969-07-23 |
| DE1628447A1 (en) | 1971-08-19 |
| NL6701312A (en) | 1967-07-31 |
| FR1478404A (en) | 1967-04-28 |