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A vacuum pump is a type of pump device that draws gas particles from a sealed volume in order to leave behind a partial vacuum. The first vacuum pump was invented in 1650 by Otto von Guericke, and was preceded by the suction pump, which dates to antiquity.
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vacuum pump pumps pressure used displacement positive outgassing high pumping chamber volume momentum gas molecules system transfer low may suction
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Vacuum pump | is a | type of pump device that draws gas particles from a sealed volume in order to leave behind a partial vacuum | 0.90 | text |
| Klein flanges or ISO flanges | instance of | High-vacuum systems generally require metal chambers with metal gasket seals | 0.80 | text |
| rather than the rubber gaskets more common in low vacuum chamber seals | instance of | High-vacuum systems generally require metal chambers with metal gasket seals | 0.80 | text |
| stainless steel or titanium must be considered | instance of | and even the absorptivity of hard metals | 0.80 | text |
| palladium | instance of | Vessels lined with a highly gas-permeable material | 0.80 | text |
| radiotherapy | instance of | Medical applications | 0.80 | text |
| radiosurgery | instance of | Medical applications | 0.80 | text |
| radiopharmacy | instance of | Medical applications | 0.80 | text |
| Vacuum pump | has application | Vacuum | 0.60 | section |
| Vacuum pump | has application | Production | 0.60 | section |
| Vacuum pump | has application | CRTs | 0.60 | section |
| Vacuum pump | has application | Semiconductor | 0.60 | section |
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