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Apparatus for cleaning tanks and the like

  • US 3,878,857 A
  • Filed: 05/09/1973
  • Issued: 04/22/1975
  • Est. Priority Date: 05/09/1972
  • Status: Expired due to Term
First Claim
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1. Apparatus for cleaning the interior surfaces of tanks and the like, comprising an outer section with a flange means for attachment to the wall of a tank to be cleaned, and with means for connection to a fluid supply and to a driving means, and an inner section with a supply tube for introduction into the tank, which tube is fixed to the flange means at one end and at its other end is provided with a flushing head which is rotatable about the tube axis and has a tube section on which there is pivotally mounted a nozzle unit with two oppositely directed nozzles so that the nozzle unit is rotatable about an axis at right angles to the tube axis, the flushing head being provided with means for rotating the nozzle unit a small angle for each revolution of the flushing head, characterized in that the flushing head is mounted in a holder means fixed to the adjacent end of the tube, and is rotated by means of a driving shaft disposed concentrically in the supply tube, which is attached to the flushing head at one end and is connectable to the external driving means at its other end, and in that said tube section of the flushing head is provided with a slot-like aperture in the area facing the nozzles, which aperture extends essentially over one half of the circumference of the tube section, for supplying cleaning fluid to only one nozzle at a time.

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