Adjustable tube-cleaner device

An adjustable tube-cleaning device for passing through a tube for cleaning the tube comprising:

• a central shaft having an anchor engaged therewith at one end portion thereof and an adjustable compression means adjustably engaged therewith at an opposite end portion thereof for being selectively moveable along said central shaft;
• a substantially-cylindrical elastic core surrounding the central shaft between the anchor and the adjustable compression means for being compressed and decompressed by said adjustable compression means;
• and
• a scraper assembly including a substantially annular resilient sleeve mounted on a circumferential outer surface of the elastic core by resilience of the resilient sleeve contracting toward a pre-formed configuration in which the substantially annular sleeve presses against the outer surface of the elastic core, said scraper assembly further including a plurality of scraping vanes extending radially outwardly from said annular sleeve, each of said scraping vanes having a scraping edge directed radially away from the elastic core;
• wherein radial positions of the scraping edges relative to the central shaft can be adjusted by moving the adjustable compression means along the shaft to thereby compress and decompress the elastic core and, in turn, radially expand and contract the outer surface of the elastic core and the resilient sleeve mounted thereon for controlling a tightness with which the scraping edges fit in a tube being cleaned;
• wherein the scraper assembly comprises a sleeve which is separate from the scraping vanes, and which surrounds and compresses on the scraping vanes to hold the scraping vanes on the outer surface of the elastic core.