Abstract: An apparatus for cleaning heat exchanger tubes and in particular an improved collection system for nuclear generator cleaning and blasting media and deposit material. A suction line having a downwardly directed suction inlet is effective to vacuum airborne media and debris in said chamber and vacuum media and debris deposited on the bottom of said chamber below said suction inlet. A hopper, air jet and shaker means are provided to transport deposited media and debris toward the suction inlet. Breaker and partition means are provided to reduce back-streaming of debris into heat exchanger tubes.

Abstract: An apparatus for cleaning heat exchanger tubes and in particular an improved collection system for nuclear generator cleaning and blasting media and deposit material. A suction line having a downwardly directed suction inlet is effective to vacuum airborne media and debris in said chamber and vacuum media and debris deposited on the bottom of said chamber below said suction inlet. A hopper, air jet and shaker means are provided to transport deposited media and debris toward the suction inlet. Breaker and partition means are provided to reduce back-streaming of debris into heat exchanger tubes.

Abstract: An amusement ride comprises a hollow launch tube having an inner surface and first and second ends, the first end being open; a passenger vehicle having an outer peripheral surface which forms a substantial seal with the inner surface of the launch tube so as to form a substantially sealed space inside said launch tube from said passenger vehicle to the second end of the launch tube; guidance means for guiding said passenger vehicle along a pre-determined path to exit the launch tube, said guidance means being self-rigid and extending through said open first end along said pre-determined path; and a pressurized gas source for introducing pressurized gas into the substantially sealed space inside said launch tube sufficient to launch the passenger vehicle along said guidance means and out of the launch tube.

Abstract: An improved composite waterlance and cavity connection is described where fiber reinforcements longitudinally extend through the body (24) of waterlance (10) and are inserted into a wedge shaped cavity at the top (18a) and bottom (18b) of a front manifold (18). An adhesive in the cavity and on the end of the rope (36) fixes the rope to the front manifold (18) and to the body (24) of the waterlance (10) to provide improved strength in the connection.

Abstract: An articulated annular sludge lance and method is described for cleaning sludge from tubes in a steam generator from the annular chamber surrounding the robe bundle. The articulated annular sludge lance is moved around the annular chamber and directs a fluid distribution member between the robes to effectively clean sludge from the tubes. The articulated annular sludge lance and method can also be used in the no robe lane or in combination with a no-robe lane method.

Abstract: The Applicant's present invention is drawn to an improved nozzle for a miniaturized sludge lance intended to be used with an articulated sludge lancing systems to clean narrow tube lanes. The improved nozzle has an internal flow straightener which minimizes turbulence within the nozzle and allows a pair of oppositely located nozzles to be fitted within the miniature lance while producing the output cleaning power of nozzles requiring dimensioning that would not fit within the confines of the miniature lance assembly.

Abstract: An articulated annular sludge lance and method is described for cleaning sludge from tubes in a steam generator from the annular chamber surrounding the tube bundle. The articulated annular sludge lance is moved around the annular chamber and directs a fluid distribution member between the tubes to effectively clean sludge from the tubes. The articulated annular sludge lance and method can also be used in the no tube lane or in combination with a no-tube lane method.