JPS497511B1 - - Google Patents
Info
- Publication number
- JPS497511B1 JPS497511B1 JP45094244A JP9424470A JPS497511B1 JP S497511 B1 JPS497511 B1 JP S497511B1 JP 45094244 A JP45094244 A JP 45094244A JP 9424470 A JP9424470 A JP 9424470A JP S497511 B1 JPS497511 B1 JP S497511B1
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
-
- 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
Landscapes
- Measuring Fluid Pressure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5300769 | 1969-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS497511B1 true JPS497511B1 (ja) | 1974-02-20 |
Family
ID=10466254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45094244A Pending JPS497511B1 (ja) | 1969-10-29 | 1970-10-27 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3742343A (ja) |
| JP (1) | JPS497511B1 (ja) |
| CA (1) | CA933238A (ja) |
| DE (1) | DE2052094A1 (ja) |
| FR (1) | FR2066651A5 (ja) |
| GB (1) | GB1336126A (ja) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1437174A (en) * | 1972-05-26 | 1976-05-26 | Mullard Ltd | Ion gauges |
| US4307323A (en) * | 1980-04-04 | 1981-12-22 | Granville-Phillips Company | Vacuum gauge |
| US4636680A (en) * | 1983-05-24 | 1987-01-13 | Granville-Phillips Company | Vacuum gauge |
| US5422573A (en) * | 1990-04-11 | 1995-06-06 | Granville-Phillips Company | Ionization gauge and method of using and calibrating same |
| US5296817A (en) * | 1990-04-11 | 1994-03-22 | Granville-Phillips Company | Ionization gauge and method of using and calibrating same |
| US5250906A (en) * | 1991-10-17 | 1993-10-05 | Granville-Phillips Company | Ionization gauge and method of using and calibrating same |
| DE4338535C2 (de) * | 1993-11-11 | 2003-06-18 | Unaxis Deutschland Holding | Extraktor-Ionisationsvakuummeter |
| DE29614489U1 (de) * | 1996-08-21 | 1996-10-10 | Leybold Vakuum Gmbh | Meßsystem für ein Vakuummeter |
| CH707685A1 (de) * | 2013-03-06 | 2014-09-15 | Inficon Gmbh | Ionisations-Vakuummesszelle mit Abschirmvorrichtung. |
-
1969
- 1969-10-29 GB GB5300769A patent/GB1336126A/en not_active Expired
-
1970
- 1970-10-23 DE DE19702052094 patent/DE2052094A1/de active Pending
- 1970-10-27 JP JP45094244A patent/JPS497511B1/ja active Pending
- 1970-10-28 FR FR7038866A patent/FR2066651A5/fr not_active Expired
- 1970-10-29 US US00085157A patent/US3742343A/en not_active Expired - Lifetime
- 1970-10-29 CA CA096891A patent/CA933238A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2052094A1 (de) | 1971-05-06 |
| US3742343A (en) | 1973-06-26 |
| CA933238A (en) | 1973-09-04 |
| FR2066651A5 (ja) | 1971-08-06 |
| GB1336126A (en) | 1973-11-07 |