GB921666A - Improvements relating to vacuum pumps - Google Patents
Improvements relating to vacuum pumpsInfo
- Publication number
- GB921666A GB921666A GB4428760A GB4428760A GB921666A GB 921666 A GB921666 A GB 921666A GB 4428760 A GB4428760 A GB 4428760A GB 4428760 A GB4428760 A GB 4428760A GB 921666 A GB921666 A GB 921666A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- cylinder
- sorption material
- dec
- liquid nitrogen
- 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
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
921,666. Vacuum pumps. FERRANTI Ltd. Dec. 6, 1961 [Dec. 23, 1960], No. 44287/60. Class 8(1). In a vacuum pump of the sorption type the sorption material e.g. dehydrated sodium alumino-silicate is confined within a container 1 Fig. 1 which is closed except for a valved conduit connection 8 and which is provided with at least one passage extending between apertures 5, 6 in the surface of the container whereby when it is immersed in coolant e.g. liquid nitrogen the latter is able to enter the passage without trapping air. As shown the container 1 is formed of inner and outer stainless steel cylinders 7, 2 and end closure members 3, 4 and encloses, a double-walled perforated copper member 10-12 serving to divide the sorption material 15 into radially spaced cylindrical layers adjacent the cooled walls 2, 7 of the container. In a modification the container 20 Fig. 2 comprises a steel cylinder 21 having end closures 22, 23 and four conduits 27 (only two of which are shown) extending between ports 25, 26 near the ends of the cylinder and into which liquid nitrogen enters and about which the sorption material 31 is disposed. The central portion of the container is occupied by a perforated copper cylinder 28 from which extend outwardly four radial passages 29 Fig. 3 (not shown).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4428760A GB921666A (en) | 1960-12-23 | 1960-12-23 | Improvements relating to vacuum pumps |
| FR882986A FR1316718A (en) | 1960-12-23 | 1961-12-23 | Vacuum pump improvements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4428760A GB921666A (en) | 1960-12-23 | 1960-12-23 | Improvements relating to vacuum pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB921666A true GB921666A (en) | 1963-03-20 |
Family
ID=10432598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4428760A Expired GB921666A (en) | 1960-12-23 | 1960-12-23 | Improvements relating to vacuum pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB921666A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9330876B2 (en) | 2013-11-06 | 2016-05-03 | General Electric Company | Systems and methods for regulating pressure of a filled-in gas |
| US9557009B2 (en) | 2013-11-06 | 2017-01-31 | General Electric Company | Gas reservoir and a method to supply gas to plasma tubes |
-
1960
- 1960-12-23 GB GB4428760A patent/GB921666A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9330876B2 (en) | 2013-11-06 | 2016-05-03 | General Electric Company | Systems and methods for regulating pressure of a filled-in gas |
| US9557009B2 (en) | 2013-11-06 | 2017-01-31 | General Electric Company | Gas reservoir and a method to supply gas to plasma tubes |
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