Abstract: A cleaning device, or projectile, cleans the inside surface of a tube as it is propelled by a liquid through the tube by mechanically scraping and cleaning soft and hard deposits, such as sludge and manganese, from the inner surface of the tube, such as those found in condensers and heat exchangers. The tube cleaning device, or projectile, is propelled forward by a high-pressure fluid spray injected into a tube. This high-pressured fluid injection is sufficient to advance the device through the tube, allowing the device to scrape or otherwise dislodge incrustations or other accumulations from the interior wall of the tube. The tool cleans the inside surface of a tube as the tool travels through the tube and includes a compressible bushing and a series of cutters secured to a split support that defines a cavity for receiving the bushing, the support being adapted to be opened and closed to receive and contain the bushing.

Abstract: Fluid propelled tube cleaning tool for removal of deposits from the interior wall of a tube as a substantially cylindrical body, with a tail portion at one end, with a plurality of spaced cutters, with each cutter having a plurality of cutting blades extending radially from the cutters and with flexible bushings for each cutter which permit the force exerted by the cutter blades against the interior wall of the tube to be adjusted by axially compressing the flexible bushings.

Abstract: A tube cleaning tool for removal of hard deposits from the interior wall of a tube has a cylindrical body portion with an outer diameter, less than the inner diameter of the tube, a nose portion at one end and a tail portion at the other end, with a plurality of spaced freewheeling cutting wheels provided on the body portion which extend outwardly therefrom, the cutting wheels at least partially contained within the confines of the cylindrical body portion and rotatable about an axis transverse the longitudinal axis of the cylindrical body portion.