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Device for aerating waste water

  • US 5,522,989 A
  • Filed: 10/12/1993
  • Issued: 06/04/1996
  • Est. Priority Date: 10/14/1992
  • Status: Expired due to Fees
First Claim
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1. A rotor for aerating waste water by extending partially into the surface of the water to be aerated and which rotates about a vertical axis of rotation comprising, a plate-shaped member oriented perpendicular to said axis of rotation and a plurality of plate-shaped blades extending from both sides of said plate-shaped member in a direction which is parallel to and radially outwardly spaced from said axis of rotation of said rotor.

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