Abstract: A duct cleaning apparatus, including a flexible shaft having a first end and a second end, a cleaning head including a plurality of cleaning elements intertwined with a twisted wire, wherein each of the cleaning elements comprises a strip of electrostatic cloth fabric, and the cleaning elements extend outwardly and non-uniformly from the twisted wire, a detachable mounting assembly operatively arranged to secure the cleaning head to the first end of the flexible shaft, and wherein the flexible shaft includes a detachable connection means operatively arranged to connect the first end to the second end.

Abstract: A pipe cleaning tool comprises a rod slidably retained in a housing. The housing is affixed to a pipe in the area of the blockage so that, when affixed, the rod slides through the housing and through the blocked pipe. The end of the rod is pushed into and through the blockage, allowing free flow of fluid through the pipe to resume. A blowout port on the housing is in fluid communication with a rod bore in the housing through which the rod slides so that, when the blockage is removed, fluid flows out through the rod bore and out the blowout port. Fluid flowing out through the blowout port can then be controlled and directed by coupling a hose to the blowout port. The pipe cleaning tool is particularly useful to remove blockages in the test cocks of backflow prevention valves.

Abstract: A pull through having a filament about which, at least in part, there is carried at least one mass to fulfil a cleaning role, wherein said mass defines a sheath at least in part on the filament and at least two radial fins (A) integral with and/or carried by the sheath or extension thereof, and (B) axially spaced with respect to the sheath axis and the filament axis, and wherein said fins are each substantially radially directed with respect to said axes axis yet are of a profile and are formed in a material such that each, without any substantial interference of the other, can assume a configuration for a conduit to be cleaned smaller than that notionally just touchable by the undeformed fins.

Abstract: Provided is a cleaner that can clean an inside wall surface defining a hollow portion to be cleaned even if the distance between the center of the hollow portion to the inside wall surface varies; the cleaner being able to adjust the level of pressure (force) applied against the inside wall surface; and being able to clean the inside wall surface by applying optimum pressing force, depending on how dirty the inside wall surface is, and simply by moving the cleaner in a back-and-forth movement direction relative to the hollow portion. The cleaner includes: a shaft 10; and a cleaning portion 20 attached around the outside surface of the shaft 10.

Abstract: A pig traversable through a conduit to deliver a liquid, such as a coating material, having a resilient flexible, generally frustoconical sealing lip which is resiliently biased against an internal surface of the conduit and a resilient biasing member engaging and biased against an under surface of the sealing lip, biasing the sealing lip against an internal surface of the conduit. The disclosed embodiments of the resilient biasing member include annular coil springs and serpentine annular metal springs which may be U-shaped in cross-section, including a first leg received against the under surface of the sealing lip and a second leg received against the pig body portion.

Abstract: Methods and devices are provided for cleaning firearm barrels, including those of military issue firearms, wherein the methods include a step for removing loose materials from within the barrel, a step for dislodging materials not removed during the first removal step, and a step for removing the materials dislodged during the dislodging step, as well as one or more optional cleaning steps to be performed in addition to or in lieu of the other cleaning steps, and wherein the firearm barrel cleaning device can be adapted to have different configurations for use during one or more of the various cleaning steps.

Abstract: A device for transporting and delivering chemical to interior walls of pipelines employs a pig having a tank which contains pressurized chemical therein. Operably connected to the tank is a nozzle which is equipped to deliver the chemical from the tank onto the inner pipeline walls as the pig is transported through the pipeline. The pig is equipped with a device to deliver the chemical at a predetermined point within the pipeline and includes a position tracking device to enable location thereof. A method of cleaning and treating a pipeline is also provided.

Abstract: Disclosed is an apparatus and method for cleaning pipes, drains, culverts, and similar structures. It is often desired that such structures be cleaned after they have become clogged, or partially clogged, by foreign debris such as sand, dirt, mud, leaves, trash, tree branches, or other foreign material. The apparatus comprises a first lead, a second lead, an insertion pole for inserting the first lead through the structure to be cleaned, and a canister which attaches to the first lead and second lead and is pulled forward and backward through the structure to be cleaned. The invention is also directed to a method for cleaning a culvert, pipe, drain, or similar structure comprising the steps of inserting a first lead through the structure to be cleaned, attaching the first lead to a canister, attaching a second lead to the canister, and pulling the canister forward and backward through the structure to be cleaned.

Abstract: A casing scraper comprises a plurality of blade modules mounted on a mandrel. The blade modules are identical to each other and have castellated ends which are engaged with the couplers to prevent relative rotation between the modules. By manipulation of a thread protector the modules can be operated in a configuration in which they are free to rotate relative to the mandrel or in a configuration in which they are rotationally fast with the mandrel. Each module comprises a housing in which a plurality of scraper blades are mounted. The scraper blades include shoulders which prevent the blades passing completely through mounting windows provided in the housing and are biased radially outwardly relative to the housing by compression springs.

Abstract: A curved scraper blade for a scraped-surface heat exchanger pivots about an axis off the centerline of the blade. The profile of the blade is chosen to provide a low initial scrape angle and to change gradually if at all as the blade wears away in service. The off-center pivot placement allows scraped material to flow between the blade and the drive shaft. Several materials are suitable for the blade, including PEEK thermoplastic.

Abstract: An automatic cleaning apparatus for a gun barrel is disclosed, which includes a wheel contacting an inner surface of the gun barrel and a brush or non-woven fabric rotating against the inner surface of the gun barrel which is applied with a cleaning solution or anti-corrosive oil, and moves forward by rotation of the wheel.

Abstract: An endoscope washing and disinfecting apparatus according to the present invention includes an apparatus body having a washing tub for placing and washing an endoscope, a brush forward and reverse mechanism provided with a fluid supply part for supplying a fluid circulating in the apparatus body into a conduit of the endoscope, and a washing brush cassette freely attachable and detachable to/from the brush forward and reverse mechanism, having a washing brush for brush washing the inside of the conduit by moving forward and reversely by the brush forward and reverse mechanism through the fluid supply part. Thus, an inexpensive endoscope conduit washing brush cassette capable of readily changing a washing brush and an easy-to-use endoscope washing and disinfecting apparatus corresponding to the endoscope conduit washing brush cassette can be provided.

Abstract: An apparatus for cleaning deposits from the interior surfaces of a kiln. The apparatus utilizes a directed high-pressure fluid jet to remove deposits adhering to elements within a kiln. The pressurized fluid is delivered to the fluid jet through the shaft of a rotary drill. The drill shaft is received in a sleeve permitting rotational and longitudinal displacement of the shaft. The sleeve also defines a plenum surrounding the drill shaft to communicate pressurized fluid to the fluid jet throughout longitudinal and rotational displacement of the drill shaft. The drill further utilizes a boring bit suitable for penetrating encrusted deposits to provide the fluid jet access to the interior surfaces of the kiln. For removing severe encrustations, the drill bit may be used to partially penetrate the encrustation and a linear actuator may then be employed to press large portions of the encrustation from the kiln's refractory lining.

Abstract: A portable cannon tube cleaning method comprising the steps of pulling a trailer to the site of a cannon tube to be cleaned, adjusting the height of a main cleaner chassis assembly to be in line with the cannon tube to be cleaned, fitting the main cleaner chassis assembly against a face of the cannon tube, fitting a hollow adapter plate on the outer diameter of the cannon tube, and hauling a cleaning brush assembly through the cannon tube for as many cycles as required to adequately clean the tube for inspections.

Abstract: A downhole tool (1) for providing the dual role of cleaning and milling within a wellbore casing or liner is described. In an embodiment scraper blades (6) are mounted on a body (2) together with a milling sleeve (4). Additionally, a centralizer sleeve (3) is incorporated as is a filter and/or junk basket for collecting debris is dislodged from the casing or liner during the cleaning and milling operation. The milling sleeve (4) can be locked onto the body (2) while the cleaning members e.g. scraper blades (6) may be free floating around the tool (1).

Abstract: A device for mechanically cleaning a grooves used to hold a rotor or a stator winding of an electric machine includes an axially moveable device carrier and at least one cleaning tool connected to the device carrier and extending radially from the device carrier into the groove. In addition, a corresponding method includes the steps of radially moving at least one cleaning tool connected to a device carrier so as to mechanically remove impurities on a wall section of the groove, axial advancing of the device carrier in a manner adapted to the radial movement of the at least one cleaning tool, and setting the dimensional tolerance range for the groove by adjusting the cleaning tool. The device and the method are suitable for cleaning grooves into which a new winding is to be installed in an existing laminated body, for example, in the case of the retrofitting of generators.

Abstract: A spring shaft (1) for cleaning pipelines consists of a coil spring (2) with windings (3, 3a, 3b, 3c) of spring steel and with a rotation axis (RA) and a spiral winding axis (WA). In order to give the spring shaft (1) a particular cleaning function, the windings (3, 3a, 3b, 3c) have at least on their outside (4) a cross section departing from the circular shape, with at least one edge (K) acting on the pipeline. At the same time it is possible to provide the outside (4) with at least one longitudinal groove (8) following the windings (3c), or to configure the cross section of the windings (3a, 3b) as a square whose outside edge (4a) runs parallel to the rotation axis (RA) or whose surface diagonal (4b) runs radially to the rotation axis (RA). Lastly, it is possible to provide the outside (4) with a profile (5) in which projections and grooves alternate.

Abstract: An indexing style Automatic Port Cleaner for cleaning furnace combustion air ports employs multiple cleaning tips and rods enclosed substantially in a furnace windbox. An extension bar enclosed substantially in a furnace windbox to which the cleaning rods are attached with the extension bar carries the cleaning rods and tips in a translating and indexing motion. An extension bar is supported by two fulcrum rods and in turn supported by two fulcrum tubes and two fulcrum housings, the fulcrum housings being supported by a faceplate and fixed relative to the combustion air ports. The fulcrum rods translate relative to the fulcrum tubes while the fulcrum tubes rotate relative to the fulcrum housings. A linear actuator is disposed to create a reciprocating translating motion of the fulcrum rods, extension bar, cleaning rods, and cleaning tips. Indexing creates rotation of the fulcrum tubes, fulcrum rods, extension bar, cleaning rods, and cleaning tips, in a reciprocating fashion about the fulcrum housings.

Abstract: A pipe prepping tool for cleaning the ends of copper pipes and fittings to prepare their surfaces for soldering. The pipe prepping tool includes a hand-held housing member having an elongate handle portion and a head portion; and also includes a first brush support member being rotatably mounted to the hand-held housing member; and further includes a second brush support member being mounted to the first brush support member; and also includes a plurality of brushes being supported by the first and second brush support members for prepping threads and interior surface of a pipe; and further includes an assembly of rotating said brush members.

Abstract: A washing apparatus for an endoscope includes a wire brush, a region for housing the wire brush and a driver adapted to advance and retract the wire brush. The wire brush is received in a pipe section of the wire housing region so that the wire brush may be selectively advanced out or retracted in this pipe section which is, in turn, provided along its front end portion and a rear end portion with position sensors to detect a position of a wire component of the wire brush.

Abstract: A brush for in situ cleaning of one or more passageways defined by a medical device. The brush includes a NiTiNOL shaft attached to a fill section by way of a proximal connector sleeve that is resistance welded to the fill section and the shaft. The fill section is preferably composed of braided wire and includes bristles, or fill, interweaved with the braided wire. The fill section in turn, is attached to an atraumatic tip by way of a distal connector sleeve which is resistance welded to the fill section and the atraumatic tip. The atraumatic tip includes a NiTiNOL core wire about which is disposed a gold-plated tungsten coil readily visible under a fluoroscope. The coil is bonded to the core wire. A bulb disposed on the coil helps effectuate cleaning of the passageway while also protecting the patient and the medical device from cleaning-related trauma.

Abstract: A pull through such as might be used for an endoscope where a thermaplastics monofilament substantially free of spool or coil memory has molded thereon a desirable thermoplastic mass profile in a material of lower melting point than at least part of the filament, such melting point differential with preferably pre-heating of the filament ensuring an appropriate keying of the profile on the filament.

Abstract: The compressor cleaning system includes a track mounted about the inlet of the compressor. A circumferential position assembly mounts an insertion drive assembly which is driven about the track into selected circumferential positions. The insertion drive assembly carries a manipulator arm assembly mounting at its distal end a cleaning head. By using pairs of control cables, the proximal yaw, pitch and distal yaw sections of the manipulator arm can be moved to weave the cleaning head past the multiple stages of blading to locate the cleaning head adjacent a selected blade. By repeated extension and retraction of the cleaning head relative to the compressor inlet and about the compressor blades, each blade can be cleaned without disassembly of the compressor casing or removal of the rotor.

Abstract: An apparatus for clearing a process tapping point including a clearing head 3 adapted to pass through the process tapping point to remove scale and/or debris material therefrom, actuation means 7 for driving the clearing head in a reciprocal motion through said process tapping point; and wherein the clearing head 3 includes a flow path through which purge fluid can pass.

Abstract: A metal-debris magnetic scavenging tool useable inside a buried, horizontal metallic pipeline through an access opening which has been cut into the upper wall portion of the pipeline overhead where the resulting debris has collected. A raiseable/lowerable and rotatable array of magnets, surface exposed, and operating moveably as a unit, agitate and collect debris principally within an area-footprint which allows for clearance lifting and removal of collected debris through the access opening.

Abstract: An apparatus for cleaning deposits from the interior surfaces of a kiln. The apparatus utilizes a directed high-pressure fluid jet to remove deposits adhering to elements within a kiln. The pressurized fluid is delivered to the fluid jet through the shaft of a rotary drill. The drill shaft is received in a sleeve permitting rotational and longitudinal displacement of the shaft. The sleeve also defines a plenum surrounding the drill shaft to communicate pressurized fluid to the fluid jet throughout longitudinal and rotational displacement of the drill shaft. The drill further utilized a boring bit suitable for penetrating encrusted deposits to provide the fluid jet access to the interior surfaces of the kiln. For removing severe encrustations, the drill bit may be used to partially penetrate the encrustation and a linear actuator may then be employed to press large portions of the encrustation from the kiln's refractory lining.

Abstract: A tube cleaning apparatus for insertion through a feeding tube inserted within a patient. The apparatus includes an elongated member having a manipulated end and an insertion end sized for insertion through the feeding tube during insertion in the patient. The insertion end includes a resilient material disposed radially thereon, including a plurality of filaments and/or a compressible material. The resilient material provides contact against interior surfaces of the feeding tube during insertion therethrough. A limit member is removably clamped around the elongated member at any position between the manipulated end and the insertion end, providing a maximum limit for insertion of the insertion end through the feeding tube. A method of cleaning is disclosed for utilizing an elongated member having a limit member clamped thereon for cleaning interior surfaces of a feeding tube positioned within a patient.

Abstract: A brush for in situ cleaning of one or more passageways defined by a medical device. The brush includes a NiTiNOL shaft attached to a fill section by way of a proximal connector sleeve that is resistance welded to the fill section and the shaft. The fill section is preferably composed of braided wire and includes bristles, or fill, interweaved with the braided wire. The fill section in turn, is attached to an atraumatic tip by way of a distal connector sleeve which is resistance welded to the fill section and the atraumatic tip. The atraumatic tip includes a NiTiNOL core wire about which is disposed a gold-plated tungsten coil readily visible under a fluoroscope. The coil is bonded to the core wire. A bulb disposed on the coil helps effectuate cleaning of the passageway while also protecting the patient and the medical device from cleaning-related trauma.

Abstract: The present invention is directed to a cleaning apparatus and a method of for using the apparatus to remove foreign matter, e.g., dirt, dust, accumulated lubricant, moisture and the like, from the areas in and around a mechanical component having a void space. The cleaning apparatus includes an elongated flexible member terminated by first and second ends, and a tapered end disposed on at least one of the ends of the elongated member. The apparatus can be threaded into the void space and contacted with a surface of the void space.

Abstract: A vehicle for traversing a surface such as for carrying out an inspection, survey or maintenance operation upon that surface comprises two bodies interconnected by means to move the bodies towards and away from each other, each of those bodies being supported upon a multiplicity of resilient bristles (13; 25; 32) extending from it, the bristles of each body being mounted in groups upon bristle-carrying members (10; 23; 31) each guided for movement towards and away from the body, and fluid pressure means (25; 22; 34) to effect the guided movement of the bristle-carrying members in at least one of those directions.

Abstract: A deflection gauge dislodging system for performing deflection tests of pipes while permitting the deflection gauge to be readily dislodged from the interior of the pipe should it become stuck in the pipe. The deflection gauge dislodging system includes an elongate deflection gauge for measuring a minimum diameter of a lumen of a pipe. A dislodging apparatus is provided for dislodging the deflection gauge from a lodged condition in the lumen of a pipe. The dislodging apparatus is adapted to impact against the deflection gauge while the deflection gauge is positioned in the lumen of the pipe.

Abstract: A cylindrical brush for scrubbing the inside surface of a pipe is made of bristles attached to a springy helix. The diameter of the brush is greater than the inside diameter of the pipe. When the brush is pushed through the pipe the helix collapses and compacts the bristles to scrub the surface. When the brush is released in the pipe, the helix expands and spreads the bristles; thereby aiding in release of debris collected on the bristles during the scrubbing.

Abstract: A brush for in situ cleaning of one or more passageways defined by a medical device. The brush includes a NiTiNOL shaft attached to a fill section by way of a proximal connector sleeve that is resistance welded to the fill section and the shaft. The fill section is preferably composed of braided wire and includes bristles, or fill, interweaved with the braided wire. The fill section in turn, is attached to an atraumatic tip by way of a distal connector sleeve which is resistance welded to the fill section and the atraumatic tip. The atraumatic tip includes a NiTiNOL core wire about which is disposed a gold-plated tungsten coil readily visible under a fluoroscope. The coil is bonded to the core wire. A bulb disposed on the coil helps effectuate cleaning of the passageway while also protecting the patient and the medical device from cleaning-related trauma.

Abstract: A gun barrel cleaning tool is provided for rifle, shotguns and handguns including a rod to which any number of different cleaning devices may be sequentially interconnected in any desired order as is appropriate for a particular cleaning operation. Typical cleaning devices include brushes, mops and loops.

Abstract: Apparatus for wiping a contaminated lumen of an endoscope including a cleaning member having at least one radially extending fin for passing axially through the lumen with at most a small clearance whereby contamination remaining after passage of the member through the lumen is substantially uniformly distributed as a thin film on an internal wall of the lumen. The invention also relates to a method for cleaning a contaminated lumen of an endoscope including pulling or pushing a cleaning member axially through the lumen and treating the uniformly distributed film with a cleaning composition.

Abstract: The present invention provides a support sleeve for supporting an internal pipeline apparatus in a pipeline. The sleeve is provided with a number of deformable splines around its circumference which keep the pipeline apparatus centralized in the pipeline during operation. The leading edges of the splines have chamfers so that, when the sleeve encounters a reduction in the diameter of the pipeline, the splines deform in a direction transverse to the longitudinal axis of the sleeve. It this way, less force is required to move the apparatus and sleeve through a portion of pipeline of reduced diameter than is the case with conventional disc supports.

Abstract: A corporation stop cleaner device includes a T-shaped body having an inlet end, an outlet end, a flushing inlet connection and a flushing outlet connection. The T-shaped body is attached to the fluid inlet of a corporation stop. A removable brush is mounted on one end of a rigid rod and is forced through the T-shaped body and into the corporation stop. The brush abuts the inner surfaces of the corporation stop to remove debris or the like from the inner surfaces of the corporation stop. Flushing water flows through the T-shaped body to remove debris removed from the corporation stop. An optional pipe cleaning tool includes the T-shaped body attached to a service water line with an expandable brush mounted on one end of a flexible cable wherein the brush expands through the pipe cleaning tool inside of the water pipe to remove debris from the line that is stopping flow of water therethrough.

Abstract: A debris retaining and retrieval tool for cleaning the barrels of rifles. A serrated brass cutting blade is positioned between two spaced plastic guide discs and further between a plastic lead-in guide element and a plastic follower guide element. The elements are combined by a bolt and nut and fastened to a ram rod. The spaced guide discs and the cutting blade entrap the scraped barrel residue of powder, plastic and lead to be carried outside the cleaned barrel for removal by a toothbrush.

Abstract: The present invention provides an improved apparatus and method for removing condensates, such as chlorides, from a dry etch, vacuum effluent stream. Dry etching of metallizations under vacuum conditions, using RF plasma and other techniques, is used in the processing of semiconductor devices and other applications. The apparatus and method remove accumulated chloride deposits that would otherwise restrict and ultimately plug the pipe that carries the vacuum effluent stream. The present invention utilizes an inner tube that is placed on the interior of the pipe and magnetically coupled to an outer tube that surrounds the exterior of the pipe. Translation of the outer tube causes translation of the inner tube, thereby removing accumulated condensate from the pipe. The apparatus may be configured so as to sense the accumulation of the condensate and automatically actuate the apparatus to remove the accumulated condensate.

Abstract: An air port or smelt spout cleaning tip presents a wider cleaning area configuration on an insertion phase, and on retraction, the tip collapses to provide a smaller size to prevent against hanging up on adjacent structures.

Abstract: The invention is broadly in a scrubber for cleaning the lumen of a cannula of an endoscopic medical instrument comprising:

Abstract: The fluid-powered scouring whip is a length of flexible tubing composed of rubber or plastic. One or more scouring members, such as bristles or tines, extend outward from the tubing. These scouring members are molded or tooled as integral parts of the tubing, and may be configured in a variety of angles, densities, patterns or lengths. The fluid-powered scouring whip would be attached to a source of rapidly moving fluid. The whip would be introduced into a remote area in need of cleaning, such as an air duct. When fluid was introduced through the fluid-powered scouring whip, the whip would move about rapidly and randomly, scouring the surfaces of the area into which it had been introduced.

Abstract: The seal assembly is disclosed for use with a valve having a trim cage with an inner surface extending along in axis and a plug sized to fit inside the trim cage inner surface, wherein the plug is adapted to move along the axis thereof. A seal ring is attached to an upstream portion of the cage to effectuate a seal with the plug. The plug is equipped with a wiper seal that cleans or otherwise removes debris from the seating surface of the seal ring, an interior surface of the seal ring and an interior surface of the cage during both the opening and the closing of the valve. Thus, the valve is self-cleaning. Further, the wiper seal delays throttling action through the valve until the plug has moved a substantial distance away from the seating surface of the seal ring which reduces high pressure abrasive flow against the seating surface of the seal ring to reduce wear on the trim set.

Abstract: A bore cleaner including a first flexible cord having a weighted member attached to a first end, a cleaning tool which is removably attachable to a second end of the first flexible cord in a first bore cleaner assembly, and a second, thicker flexible cord which is removably attachable to the second end of the first flexible cord in a second bore cleaner assembly and removably attachable to the cleaning tool in a third bore cleaner assembly.

Abstract: A solid product removal apparatus for removing a solid product adhering to an gas exhaust pipe member has a rinsing water inlet pipe member having a tip opening located inside the gas exhaust pipe member for feeding rinsing water into the inside of the gas exhaust pipe member from the tip opening thereof. The solid product removal apparatus is particularly useful when exhaust gas contains an ingredient capable of forming a solid product upon reaction with water inside the gas exhaust pipe member and can rinse off the solid product adhering to the inner face of the gas exhaust pipe member with rinsing water.

Abstract: A duster which is flexible in all directions has the ability to dust hard to reach and inaccessible surface areas. One application of the duster is to clean the sound board beneath the strings of a grand or baby grand piano. The core of the duster has an elongated rod which is made from a resilient material and is covered by a close fitting cleaning or dusting sleeve made from napped material, cloth or other well known cleaning or dusting fabric or material.

Abstract: A cleaning device is disclosed for cleaning an air port in a wall of a furnace having an air register adjacent to the air port outside of the wall of the furnace, the cleaning device comprising: a cleaning head having a substantially-open, cross-sectional shape conforming to a cross-sectional shape of the air port, said clean head moving reciprocally in and out of the air port, and a head support extending from the cleaning head, through the air register and attached to an actuator, said actuator reciprocally moving the head support, and said head support having perforated walls permitting to flow through the walls.

Abstract: A well cleaning tool adapted for connection to a drill string for removing debris and residues from the inner wall of a well casing, comprises an elongate generally cylindrical member (1) having a plurality of scratching elements (2) in the outer surface thereof. First and second helical channels or grooves (3 and 4) are defined in the outer surface of the cylindrical member (1) between the scratching elements (2), the second helical channel or groove (4) running in the counter direction to the first helical channel or groove (3).

Abstract: A casing scraper for cleaning the internal wall of a tube 26 such as a well casing has at least three, rigidly connected, axially and angularly spaced scraper bodies 12, 14, 16 each with a scraping surface 13, 15, 17. The radial dimension of the scraper at each scraping surface is slightly greater than the internal radius of the tube which it will scrape. When the scraper is fully inserted in the tube bore, the scraping surfaces are deflected inwardly and the axial connection 20, 22 between the bodies is accordingly elastically deformed. Th energy stored through this elastic deformation produces a radially outwardly acting force which presses the scraping surfaces 13, 15, 17 against the wall of the tube 26. The eccentric arrangement of the scraping surfaces, and the axial spacing between the surfaces causes the parts of the scraper connecting the scraping surfaces to be placed in bending when the scraper is in place within the tube.

Abstract: An apparatus for clearing a process tapping point including: