FR2020747A1 - - Google Patents
Info
- Publication number
- FR2020747A1 FR2020747A1 FR6935238A FR6935238A FR2020747A1 FR 2020747 A1 FR2020747 A1 FR 2020747A1 FR 6935238 A FR6935238 A FR 6935238A FR 6935238 A FR6935238 A FR 6935238A FR 2020747 A1 FR2020747 A1 FR 2020747A1
- Authority
- FR
- France
- 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.)
- Withdrawn
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1550368A CH477684A (en) | 1968-10-15 | 1968-10-15 | Ionization manometer tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2020747A1 true FR2020747A1 (en) | 1970-07-17 |
Family
ID=4409603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6935238A Withdrawn FR2020747A1 (en) | 1968-10-15 | 1969-10-15 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3760212A (en) |
| CH (1) | CH477684A (en) |
| DE (1) | DE1934940B2 (en) |
| FR (1) | FR2020747A1 (en) |
| GB (1) | GB1219044A (en) |
| NL (1) | NL160430C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4047101A (en) * | 1976-01-08 | 1977-09-06 | Westinghouse Electric Corporation | Filament for alkali metal ionization detector |
| US4095171A (en) * | 1976-04-07 | 1978-06-13 | Westinghouse Electric Corp. | Alkali metal ionization detector |
| DE3628847C2 (en) * | 1986-08-25 | 1995-12-14 | Max Planck Gesellschaft | Hot cathode ionization manometer |
| US6025723A (en) * | 1997-08-27 | 2000-02-15 | Granville-Phillips Company | Miniature ionization gauge utilizing multiple ion collectors |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497213A (en) * | 1945-05-22 | 1950-02-14 | Nat Res Corp | Pressure gauge |
| NL179125B (en) * | 1953-06-15 | Degussa | PROCESS FOR DESULFURIZING ACTIVE CARBON CONTAINING SULFIDIC SULFUR. | |
| US3067346A (en) * | 1959-12-07 | 1962-12-04 | Sylvania Electric Prod | Ionization vacuum gauge |
| US3353048A (en) * | 1964-11-23 | 1967-11-14 | Gen Telephone & Elect | Ionization gauge for monitoring the flow of evaporant material |
-
1968
- 1968-10-15 CH CH1550368A patent/CH477684A/en not_active IP Right Cessation
-
1969
- 1969-01-07 NL NL6900231.A patent/NL160430C/en not_active IP Right Cessation
- 1969-07-10 DE DE19691934940 patent/DE1934940B2/en active Pending
- 1969-10-07 GB GB49321/69A patent/GB1219044A/en not_active Expired
- 1969-10-15 FR FR6935238A patent/FR2020747A1/fr not_active Withdrawn
-
1971
- 1971-10-26 US US00192633A patent/US3760212A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1934940A1 (en) | 1970-04-30 |
| NL160430C (en) | 1979-10-15 |
| GB1219044A (en) | 1971-01-13 |
| NL6900231A (en) | 1970-04-17 |
| CH477684A (en) | 1969-08-31 |
| DE1934940B2 (en) | 1971-06-03 |
| US3760212A (en) | 1973-09-18 |
| NL160430B (en) | 1979-05-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |