Patent ID: 6049942
Filing Date: 2000-04-18
Classification: B01D,B09C,E03F

Abstract:
An apparatus adapted for use in cleaning underground water or sewage systems, comprising:an articulated boom;a nozzle means operatively connected to a pump means for allowing air, water, scum, debris or mixtures thereof to pass through said nozzle means under pressure generated by said pump means;said articulated boom having a first section adapted for mounting on a platform, and a second section adapted for supporting said nozzle means;said nozzle means having a solid penetrating tip portion, and a side portion;said side portion of said nozzle means having perforations therein;said nozzle means having impeller means disposed within said nozzle means for causing said air, water, scum, debris, or mixtures thereof to pass through said nozzle means in pulsating fashion;said impeller means being movable relative to said nozzle means; andsaid pump means being capable of forcing air at relatively high pressure through said nozzle means.