Patent ID: 6390105
Filing Date: 2002-05-21
Classification: B08B

Abstract:
An apparatus for cleaning an interior surface of a small diameter pipe comprising; a main support body having a front bushing and oppositely disposed apertured end cap therein, a wheel support assembly extending from said main support body, a central shaft within said main support body, a support hub rotatably positioned on said central shaft in said front bushing, a spray head mounting bracket extending from said support hub, a second wheel assembly extending from said mounting bracket, spray head brackets adjustably secured to said mounting bracket, spray nozzle assemblies supported on said respective spray head brackets, air supply channels in said support hub, an air supply swivel fitting rotatably positioned on said central shaft, an annular air supply passageway in said air supply swivel fitting having inlet and outlet ports in communication with a source of air under pressure and said annular air supply passageway respectively, a fluid supply pipe rotatably positioned through said central shaft, means for rotating said support hub and means for rotatably connecting said fluid supply pipe to a source of fluid under pressure and to said spray nozzle assemblies.