NL249138A - - Google Patents
Info
- Publication number
- NL249138A NL249138A NL249138DA NL249138A NL 249138 A NL249138 A NL 249138A NL 249138D A NL249138D A NL 249138DA NL 249138 A NL249138 A NL 249138A
- Authority
- NL
- Netherlands
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
- H01J41/18—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes
- H01J41/20—Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps with ionisation by means of cold cathodes using gettering substances
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US797673A US3028071A (en) | 1959-03-06 | 1959-03-06 | Glow discharge apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL249138A true NL249138A (da) |
Family
ID=25171500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL249138D NL249138A (da) | 1959-03-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3028071A (da) |
| DE (1) | DE1128946B (da) |
| GB (1) | GB873024A (da) |
| NL (1) | NL249138A (da) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1269764B (de) * | 1962-05-25 | 1968-06-06 | Siemens Ag | Ionen-Getter-Pumpe |
| US3258194A (en) * | 1963-07-29 | 1966-06-28 | Varian Associates | Magnetically confined glow discharge apparatus |
| GB1152475A (en) * | 1965-08-17 | 1969-05-21 | Leybold Hereaus Verwaltung G M | Improvements In Getter-Ion Vacuum Pumps |
| DE1539133B1 (de) * | 1966-04-28 | 1969-10-02 | Leybold Heraeus Gmbh & Co Kg | Ionengetterpumpe |
| DE4326265A1 (de) * | 1993-08-05 | 1995-02-09 | Leybold Ag | Testgasdetektor, vorzugsweise für Lecksuchgeräte, sowie Verfahren zum Betrieb eines Testgasdetektors dieser Art |
-
0
- NL NL249138D patent/NL249138A/xx unknown
-
1959
- 1959-03-06 US US797673A patent/US3028071A/en not_active Expired - Lifetime
-
1960
- 1960-02-16 DE DEV18063A patent/DE1128946B/de active Pending
- 1960-02-22 GB GB6197/60A patent/GB873024A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3028071A (en) | 1962-04-03 |
| DE1128946B (de) | 1962-05-03 |
| GB873024A (en) | 1961-07-19 |