Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent
1994-09-06
1997-04-08
Spisich, Mark
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
15104061, B08B 904
Patent
active
056176040
ABSTRACT:
An improved pipe cleaning tool employing a cutting head and propulsor utilizes a plurality of roller cutters on the cutting head. The rolling cutters are coupled in a pairwise fashion to a rotatable car. The rotatable car in turn is pivoted to the cutting head. Each of the cars and, hence, the radial disposition of each of the roller cutters, is resiliently urged by a spring bias into a preferred radial disposition relative to the longitudinal axis of the cutting head. Moving the pipe cleaning tool through a curve or past other internal obstruction within the pipe is facilitated by rotation of the roller cutter cars and their corresponding roller cutters. In one embodiment, the propulsor disks in the propulsor unit are comprised of a plurality of rigid metal segments pivoted to the propulsor body. The propulsor disk segments rotate on the propulsor unit both during the oscillatory forward motion of the pipe cleaning tool as well as during the turning through a bend or past some other internal obstruction within the pipe. Some of the propulsor segments may also be provided with a plurality of peripheral nozzle cuts for defining fluid jets in the fluid flow passing the pipe cleaning tool. A rotatable tracker is combined with the tool to provide an electromagnetic signal directly indicating flow of fluid past the tool.
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Dawes Daniel L.
Spisich Mark
LandOfFree
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