Patent ID: 6263535
Filing Date: 2001-07-24
Classification: B08B,F23J,F28G

Abstract:
An apparatus for cleaning caking adhered on the inner wall of a pipe, said apparatus comprising:(a) a housing connected to said pipe, said housing having an opening used to communicate with said pipe;(b) a scrubber for separating said caking from said pipe, said scrubber being retractably received in said housing and moved into said pipe through the opening; and(c) a driving means for driving said scrubber into said pipe and for retracting said scrubber to be received in said housing,wherein said driving means comprises:(c1) a flexible rod connected to said scrubber:(c2) a guiding mechanism used for feeding said flexible rod moving into said pipe; and(c3) a chamber used to retractably receive said flexible rod,wherein said guiding mechanism comprises at least two adjustable rollers for feeding said flexible rod into said pipe, and wherein said scrubber comprises a plurality of brush wheels spaced a distance apart from each other and rotatably mounted on said flexible rod, each of brush wheels being provided with helical teeth.