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2. Edwards Vacuum - Wikipedia

   en.wikipedia.org/wiki/Edwards_Vacuum

   In 1919, physicist and university lecturer Frederick David Edwards and his father William founded their eponymous business in Camberwell, London, as Edwards Equipment and Services. They sold vacuum pumps to research laboratories from the UK, France, Germany and the USA. [17] [3] [2]

3. Edwards' IPUP2 Vacuum Pump Sets New Standards for Load Lock ...

   www.aol.com/news/2013-07-09-edwards-ipup2-vacuum...

   Edwards' IPUP2 Vacuum Pump Sets New Standards for Load Lock and Transfer Chamber Applications. Business Wirevia The Motley Fool. Updated July 14, 2016 at 9:57 PM.

4. Liquid-ring pump - Wikipedia

   en.wikipedia.org/wiki/Liquid-ring_pump

   Single-stage vacuum pumps typically produce vacuum to 35 torr (mm Hg) or 47 millibars (4.7 kPa), and two-stage pumps can produce vacuum to 25 torr, assuming air is being pumped and the ring-liquid is water at 15 °C (59 °F) or less. Dry air and 15 °C sealant-water temperature is the standard performance basis, which most manufacturers use for ...

5. Category:Vacuum pumps - Wikipedia

   en.wikipedia.org/wiki/Category:Vacuum_pumps

   Most general pumps can increase as well as decrease the pressure of a gas; however, this category contains pumps that are usually exclusively used to decrease pressure. Wikimedia Commons has media related to Vacuum pumps .

6. Vacuum pump - Wikipedia

   en.wikipedia.org/wiki/Vacuum_pump

   The Roots blower is one example of a vacuum pump. 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. [1]

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