NL253877A - - Google Patents
Info
- Publication number
- NL253877A NL253877A NL253877DA NL253877A NL 253877 A NL253877 A NL 253877A NL 253877D A NL253877D A NL 253877DA NL 253877 A NL253877 A NL 253877A
- 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
- H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
- H01J41/04—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of thermionic cathodes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL253877 | 1960-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL253877A true NL253877A (en:Method) |
Family
ID=19752472
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL253877D NL253877A (en:Method) | 1960-07-15 | ||
| NL113459D NL113459C (en:Method) | 1960-07-15 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL113459D NL113459C (en:Method) | 1960-07-15 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3253183A (en:Method) |
| CH (1) | CH408452A (en:Method) |
| DE (1) | DE1151680B (en:Method) |
| GB (1) | GB982406A (en:Method) |
| NL (2) | NL113459C (en:Method) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1252591A (en:Method) * | 1968-02-12 | 1971-11-10 | ||
| US4314205A (en) * | 1979-11-19 | 1982-02-02 | Paitich Ronald M | Method and means for vacuum gauging |
| EP0980512A1 (en) | 1997-05-09 | 2000-02-23 | The Fredericks Company | Bayard-alpert vacuum gauge with neutralization of x-ray effect |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2605431A (en) * | 1950-03-30 | 1952-07-29 | Westinghouse Electric Corp | Ionization vacuum gauge |
| NL179125B (nl) * | 1953-06-15 | Degussa | Werkwijze voor het ontzwavelen van sulfidische zwavel bevattende actieve kool. | |
| US2848635A (en) * | 1954-11-16 | 1958-08-19 | Vacuum Electronic Engineering | Ionization gauges |
| US2972690A (en) * | 1959-07-28 | 1961-02-21 | Nat Company Inc | Ion pump and gauge |
-
0
- NL NL253877D patent/NL253877A/xx unknown
- NL NL113459D patent/NL113459C/xx active
-
1961
- 1961-06-08 US US115772A patent/US3253183A/en not_active Expired - Lifetime
- 1961-07-12 GB GB25237/61A patent/GB982406A/en not_active Expired
- 1961-07-12 DE DEN20335A patent/DE1151680B/de active Pending
- 1961-07-12 CH CH821961A patent/CH408452A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH408452A (de) | 1966-02-28 |
| NL113459C (en:Method) | |
| GB982406A (en) | 1965-02-03 |
| DE1151680B (de) | 1963-07-18 |
| US3253183A (en) | 1966-05-24 |