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  2. Zero Gravity Research Facility - Wikipedia

    en.wikipedia.org/wiki/Zero_Gravity_Research_Facility

    The facility consists of a concrete-lined shaft, 28 feet (8.5 m) in diameter, that extends 510 feet (160 m) below ground level. A steel vacuum chamber, 20 feet (6.1 m) in diameter and 470 feet (140 m) high, is contained within the concrete shaft. The pressure in this vacuum chamber is reduced to 13.3 pascals (1.3 × 10 −4 atm) before use ...

  3. Negative-pressure wound therapy - Wikipedia

    en.wikipedia.org/wiki/Negative-pressure_wound...

    Negative-pressure wound therapy ( NPWT ), also known as a vacuum assisted closure ( VAC ), is a therapeutic technique using a suction pump, tubing, and a dressing to remove excess exudate and promote healing in acute or chronic wounds and second- and third-degree burns. The therapy involves the controlled application of sub-atmospheric pressure ...

  4. Vacuum pump - Wikipedia

    en.wikipedia.org/wiki/Vacuum_pump

    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.

  5. Vacuum ejector - Wikipedia

    en.wikipedia.org/wiki/Vacuum_Ejector

    vacuum pump. A vacuum ejector, or simply ejector is a type of vacuum pump, which produces vacuum by means of the Venturi effect . In an ejector, a working fluid (liquid or gaseous) flows through a jet nozzle into a tube that first narrows and then expands in cross-sectional area. The fluid leaving the jet is flowing at a high velocity which due ...

  6. Air Squared - Wikipedia

    en.wikipedia.org/wiki/Air_Squared

    Air Squared is a vertically integrated research and development ( R&D) original equipment manufacturing ( OEM) firm headquartered in Thornton, Colorado. Its operations include the design, fabrication, and production of oil-free scroll compressors, vacuum pumps, and expanders. Organized in two divisions, Air Squared Manufacturing handles volume ...

  7. Intermittent vacuum therapy - Wikipedia

    en.wikipedia.org/wiki/Intermittent_Vacuum_Therapy

    Intermittent vacuum therapy. The intermittent vacuum therapy ( IVT) is a treatment conducted in case of venous and arterial issues as well as in rehabilitation (after sports injuries [1] and vascular complaints ). With the aid of normal and low pressure, it should enable to control venous reflux, enhance lymphatic flow [2] and improve blood ...

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