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  2. Leybold GmbH - Wikipedia

    en.wikipedia.org/wiki/Leybold_GmbH

    In 1994, Degussa sold Leybold to the Swiss Oerlikon Bührle Group, which combined Leybold with the Balzers AG, which was already in their possession, to form the Balzers and Leybold Group. The merger of these companies resulted in the world's largest vacuum and surface technology company with around 6 500 employees, generating sales of DEM 1.8 ...

  3. List of tool manufacturers - Wikipedia

    en.wikipedia.org/wiki/List_of_tool_manufacturers

    Hand-held power tools, dust extraction tools, workplace organization United Pacific Industries Ltd: Spear & Jackson: Hand tools and garden tools Wera Werk Hermann Werner GmbH & Co. KG: Wuppertal, Germany: Wera Tools: Drivers, driver bits, other hand tools Werner Co. Werner, Knaack, Weather Guard: Ladders, other [34]

  4. Rotary vane pump - Wikipedia

    en.wikipedia.org/wiki/Rotary_vane_pump

    An eccentric rotary vane pump Another eccentric rotary-vane pump design. Note that modern pumps have an area contact between rotor and stator (and not a line contact). 1. pump housing 2. rotor 3. vanes 4. spring. A rotary vane pump is a type of positive-displacement pump that consists of vanes mounted to a rotor that rotates inside a cavity. In ...

  5. INFICON - Wikipedia

    en.wikipedia.org/wiki/INFICON

    In 1987, Leybold-Heraeus GmbH, the parent company of Inficon, was purchased by Degussa AG, and the name was changed to Leybold AG. At this point, Inficon Leybold-Heraeus became Leybold Inficon, Inc. In 1993, Oerlikon-Bührle Holding AG (OBH), which owned Balzers AG, reached a deal to buy Leybold AG from Degussa AG. Formed in 1994, Balzers and ...

  6. Leybold - Wikipedia

    en.wikipedia.org/wiki/Leybold

    Leybold is a German surname. Notable people with the surname include: Notable people with the surname include: Friedrich Leybold (1827–1879), German-Chilean pharmacist and naturalist

  7. Liquid-ring pump - Wikipedia

    en.wikipedia.org/wiki/Liquid-ring_pump

    Liquid-ring pumps are typically used as vacuum pumps, but can also be used as gas compressors.The function of a liquid-ring pump is similar to a rotary vane pump, with the difference being that the vanes are a rigid part of the rotor and churn a rotating ring of liquid to form the compression-chamber seal.