The present invention provides a device for removing internal blockage materials (10) from a fluid-conveying line (3), said device comprising a cutting tool (9) activated by a rotary actuator (8), in which: the cutting tool (9) is positioned at the front of the device; and the cutting tool (9) comprises a diameter that is smaller than the internal diameter of the fluid-conveying line (3).

The present invention provides a device for removing internal blockage materials (10) from a fluid-conveying line (3), said device comprising a cutting tool (9) activated by a rotary actuator (8), in which: the cutting tool (9) is positioned at the front of the device; and the cutting tool (9) comprises a diameter that is smaller than the internal diameter of the fluid-conveying line (3).

A method of cleaning a jet pump assembly of a nuclear reactor may comprise inserting a cleaning tool into the jet pump assembly such that a front face of the cleaning tool is adjacent to an inner surface of the jet pump assembly and below a level of a first liquid in the jet pump assembly. The method may additionally comprise directing a plurality of front jets of a second liquid from a plurality of front orifices on the front face of the cleaning tool such that the plurality of front jets of the second liquid strikes the inner surface of the jet pump assembly. The method may further comprise maintaining a standoff distance between the front face of the cleaning tool and the inner surface of the jet pump assembly during the cleaning of the jet pump assembly.

A method of cleaning a jet pump assembly of a nuclear reactor may comprise inserting a cleaning tool into the jet pump assembly such that a front face of the cleaning tool is adjacent to an inner surface of the jet pump assembly and below a level of a first liquid in the jet pump assembly. The method may additionally comprise directing a plurality of front jets of a second liquid from a plurality of front orifices on the front face of the cleaning tool such that the plurality of front jets of the second liquid strikes the inner surface of the jet pump assembly. The method may further comprise maintaining a standoff distance between the front face of the cleaning tool and the inner surface of the jet pump assembly during the cleaning of the jet pump assembly.

A cleaning device for cleaning pipes includes a body having a longitudinal axis and at least three folding arms each having a rear and forward ends. The rear end of each folding arm is pivotably connected to the body so as to pivot about a respective pivot axis. The forward end of each folding arm is arranged to be folded outwards in a direction away from the longitudinal axis of the body under the influence of a centrifugal force generated by rotation of the body about the longitudinal axis. A rotatable means comprising cutter devices arranged to rotate about an axis of rotation is arranged at the forward end of each folding arm. Each rotatable means is arranged to project beyond the forward end of the folding arm and to mill both in a direction parallel to, and in a direction perpendicular to, the longitudinal axis of the body.

A process for multistage thermal treatment of rubber waste, in particular scrap tires, is proposed. The process comprises several steps of transferring a product granulate of rubber waste into three different sequencing heating zones of a reactor (10). In the heating zones (11a, 11b, 11c) the product granulate is heated at a first temperature between 100 to 200 C., preferably 150 to 180 C., then at a second temperature between 200 to 350 C. and at a third temperature between 300 to 600 C. The temperature is maintained until such time that no further oil is emitted within the respective heating zone. As a final step, the product granulate is removed from the reactor (10) and the desirable solid materials are separated.

A process for multistage thermal treatment of rubber waste, in particular scrap tires, is proposed. The process comprises several steps of transferring a product granulate of rubber waste into three different sequencing heating zones of a reactor (10). In the heating zones (11a, 11b, 11c) the product granulate is heated at a first temperature between 100 to 200 C., preferably 150 to 180 C., then at a second temperature between 200 to 350 C. and at a third temperature between 300 to 600 C. The temperature is maintained until such time that no further oil is emitted within the respective heating zone. As a final step, the product granulate is removed from the reactor (10) and the desirable solid materials are separated.

A drain cleaner including a rotatable drum, a cable at least partially housed within the drum, and a body supporting the drum. The body includes a first housing and a second housing. The first housing and the second housing are movable relative to one another between a closed position, in which the drum is secured to the body, and an open position, in which the drum is removable from the body.

A drain cleaner including a rotatable drum, a cable at least partially housed within the drum, and a body supporting the drum. The body includes a first housing and a second housing. The first housing and the second housing are movable relative to one another between a closed position, in which the drum is secured to the body, and an open position, in which the drum is removable from the body.

A drive shaft coupling for connecting a rotating tube cleaning shaft to a tube cleaning machine wherein high pressure fluid is pumped through the coupling, wherein the coupling is sealed to contain the high pressure fluid, and wherein a machine driven rotary flexible shaft passes through the coupling.