NL290849A - - Google Patents
Info
- Publication number
- NL290849A NL290849A NL290849DA NL290849A NL 290849 A NL290849 A NL 290849A NL 290849D A NL290849D A NL 290849DA NL 290849 A NL290849 A NL 290849A
- 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
- H01J41/12—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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US183440A US3181028A (en) | 1962-03-29 | 1962-03-29 | Ion transport vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL290849A true NL290849A (https=) |
Family
ID=22672800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL290849D NL290849A (https=) | 1962-03-29 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE630302A (https=) |
| CH (1) | CH439571A (https=) |
| DE (1) | DE1231844B (https=) |
| GB (1) | GB1031766A (https=) |
| NL (1) | NL290849A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008011686A1 (de) | 2008-02-28 | 2009-09-03 | Inficon Gmbh | Heliumsensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1246669A (fr) * | 1959-02-17 | 1960-11-18 | Whitehall Rand Inc | Pompe à fluides |
-
0
- NL NL290849D patent/NL290849A/xx unknown
- BE BE630302D patent/BE630302A/xx unknown
-
1963
- 1963-03-22 GB GB1147763A patent/GB1031766A/en not_active Expired
- 1963-03-28 DE DE1963J0023449 patent/DE1231844B/de active Pending
- 1963-03-29 CH CH401163A patent/CH439571A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH439571A (de) | 1967-07-15 |
| BE630302A (https=) | |
| GB1031766A (en) | 1966-06-02 |
| DE1231844B (de) | 1967-01-05 |