Elkmann, N.N.ElkmannFelsch, T.T.Felsch2022-03-082022-03-081999https://publica.fraunhofer.de/handle/publica/304420NOVELTY - The mounting has a drive with at least two linearly moving supports carrying multiple spaced suction heads. The supports have a drive (11-12) with connected linear guides (5,6). The suction heads can move individually or in groups perpendicular to the facade plane. USE - For cleaning building facades ADVANTAGE - Allows automatic cleaning of uneven building facades DESCRIPTION OF DRAWING(S) - Drawing shows sketch view of cleaner Drive 11,12 Linear guides 5,6de608670patent1998-19811271