Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 20, 2009
Patent Application Number
11983325
Date Filed
November 8, 2007
Patent Primary Examiner
Patent abstract
An engine and high pressure pump are mounted onto a wheeled chassis. High pressure water is distributed to a rotating wand and nozzle assembly on the wheeled chassis so that as the chassis is moved along a linear path, high pressure water is sprayed onto an underlying surface to clean the surface. Optional diffusion plates may be used to prevent high pressure water from being sprayed directly onto the underlying surface in part of the rotational path defined by the wand and nozzle assembly.
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