GB832222A - Improvements in and relating to continuously pumped vacuum systems - Google Patents
Improvements in and relating to continuously pumped vacuum systemsInfo
- Publication number
- GB832222A GB832222A GB2005856A GB2005856A GB832222A GB 832222 A GB832222 A GB 832222A GB 2005856 A GB2005856 A GB 2005856A GB 2005856 A GB2005856 A GB 2005856A GB 832222 A GB832222 A GB 832222A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- pump
- continuously pumped
- admittance valve
- pumped vacuum
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F9/00—Diffusion pumps
- F04F9/04—Diffusion pumps in combination with fore pumps, e.g. use of isolating valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Rotary Pumps (AREA)
Abstract
832,222. High vacuum apparatus. COUNCIL FOR SCIENTIFIC & INDUSTRIAL RESEARCH. June 27, 1957 [June 28, 1956], No. 20058/56. Class 71. [Also in Group XXIX] An isolation valve in a continuously pumped vacuum system is controlled by an air admittance valve, which is normally held closed by the operation of the pump and opens when the pump fails, comprises a piston 17 slidable under the pressure of air admitted by the admittance valve, from a normal portion (shown), in which it is sufficiently clear of a port 16 in the cylinder wall leading to the pump to allow communication with end port 14 leading to the vacuum system which may include a diffusion pump to an actuated position in which the piston seals off the port 14 and allows port 16 to communicate with port 12 at the other end of the cylinder, which port leads to the air admittance valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2005856A GB832222A (en) | 1956-06-28 | 1956-06-28 | Improvements in and relating to continuously pumped vacuum systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2005856A GB832222A (en) | 1956-06-28 | 1956-06-28 | Improvements in and relating to continuously pumped vacuum systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB832222A true GB832222A (en) | 1960-04-06 |
Family
ID=10139673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2005856A Expired GB832222A (en) | 1956-06-28 | 1956-06-28 | Improvements in and relating to continuously pumped vacuum systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB832222A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2131523A (en) * | 1982-11-23 | 1984-06-20 | Festo Maschf Stoll G | A solenoid valve unit |
-
1956
- 1956-06-28 GB GB2005856A patent/GB832222A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2131523A (en) * | 1982-11-23 | 1984-06-20 | Festo Maschf Stoll G | A solenoid valve unit |
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