GB1152475A - Improvements In Getter-Ion Vacuum Pumps - Google Patents
Improvements In Getter-Ion Vacuum PumpsInfo
- Publication number
- GB1152475A GB1152475A GB36706/66A GB3670666A GB1152475A GB 1152475 A GB1152475 A GB 1152475A GB 36706/66 A GB36706/66 A GB 36706/66A GB 3670666 A GB3670666 A GB 3670666A GB 1152475 A GB1152475 A GB 1152475A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cells
- getter
- pump
- aug
- diameter
- Prior art date
- 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.)
- Expired
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
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
1,152,475. Ion pumps. LEYBOLDHEREAUS - VERWALTUNG G.m.b.H. 16 Aug., 1966 [17 Aug., 1965], No. 36706/66. Heading H1D. Cells of at least two different configurations having optimum performance characteristics in different pressure ranges are combined in a multi-cell anode of a getter-ion vacuum pump to provide a high performance over a wide pressure range. Several cells of 10 mm. diameter may be arranged around each of several cells of 50 mm. diameter. Alternatively, the cells may differ in length, and may in additon be of different materials. Provision may be made for vamping the operating voltage and/or the magnetic field strength of the pump, and cells of one configuration may be rendered inactive. The cells may be exchangeable, a stock of cells of different configurations being accommodated in an evacuated magazine associated with the pump.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL0051403 | 1965-08-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1152475A true GB1152475A (en) | 1969-05-21 |
Family
ID=7274033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36706/66A Expired GB1152475A (en) | 1965-08-17 | 1966-08-16 | Improvements In Getter-Ion Vacuum Pumps |
Country Status (2)
Country | Link |
---|---|
US (1) | US3409211A (en) |
GB (1) | GB1152475A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3942546A (en) * | 1972-10-27 | 1976-03-09 | Continental Oil Company | Corrosion monitoring and composition-analytical apparatus |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2993638A (en) * | 1957-07-24 | 1961-07-25 | Varian Associates | Electrical vacuum pump apparatus and method |
NL249138A (en) * | 1959-03-06 | |||
US3161802A (en) * | 1960-05-27 | 1964-12-15 | Varian Associates | Sputtering cathode type glow discharge device vacuum pump |
NL284762A (en) * | 1961-11-29 | |||
US3236442A (en) * | 1964-01-20 | 1966-02-22 | Morris Associates | Ionic vacuum pump |
-
1966
- 1966-08-16 GB GB36706/66A patent/GB1152475A/en not_active Expired
-
1967
- 1967-05-02 US US641100A patent/US3409211A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3409211A (en) | 1968-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |