Patent ID: 7552505

Claim:
An aircraft-scrubbing apparatus comprising: a housing having an open side engageable against a dirty surface to be cleaned; a hollow scrubbing shaft journaled in the housing, rotatable about a respective axis, and formed with a plurality of radially directed openings; a hollow aspirating shaft journaled in the housing, rotatable about a respective axis, and formed with a plurality of radially directed openings; means for pumping a cleaning liquid and cleaning agent under pressure into the scrubbing shaft and thereby expelling the liquid and cleaning agent radially from the scrubbing shaft, whereby the liquid and cleaning agent expelled radially from the scrubbing shaft dissolve dirt on the surface; means for aspirating the cleaning liquid and agent and any dirt dissolved therein through the openings of the aspirating shaft; brushes on the shafts exposed at the housing open side; and drive means in the housing for rotating the shafts about the respective axes and thereby moving the brushes against the surface.