An apparatus for treating a surface of an object is disclosed, including a carrier configured to transport the object through a treatment zone and an array of nozzle devices, each nozzle device positioned to deliver a cavitating jet into the treatment zone. The apparatus further includes a fluid source, a pump connected to the fluid source, and a hose configured to carry fluid under high pressure generated by the pump from the fluid source to the array of nozzle devices.

A thrust management system for use with a pressurized hose in order to dissipate or distribute forces incurred by a user from handling the hose. The thrust management system includes a pad mount or bracket having a first elongated portion, a second elongated portion, and one or more support members disposed therebetween. The pad mount has a pad associated therewith.

A pneumatic-controlled abrasive blasting system that includes a blast hose; and a deadman assembly coupled with the blast hose. The deadman assembly has a primary deadman valve; and a secondary deadman valve. There is an air source configured for fluid communication with each of the primary and secondary deadman valves and the blast hose. There is a regulator valve disposed between the deadman assembly and the air source. The regulator is configured to reduce the pressure of airflow to the deadman assembly.

A pneumatic-controlled abrasive blasting system that includes a blast hose; and a deadman assembly coupled with the blast hose. The deadman assembly has a primary deadman valve; and a secondary deadman valve. There is an air source configured for fluid communication with each of the primary and secondary deadman valves and the blast hose. There is a regulator valve disposed between the deadman assembly and the air source. The regulator is configured to reduce the pressure of airflow to the deadman assembly.

An articulated boom assembly comprises a base and a primary boom arm extending from the base. There is a power system for actuating the primary boom arm between an extended position and a retracted position. There is an attachment operatively connected to the primary boom arm which supports a nozzle. The attachment may include an actuating mechanism for reciprocating the nozzle along the length of the attachment.

An articulated boom assembly comprises a base and a primary boom arm extending from the base. There is a power system for actuating the primary boom arm between an extended position and a retracted position. There is an attachment operatively connected to the primary boom arm which supports a nozzle. The attachment may include an actuating mechanism for reciprocating the nozzle along the length of the attachment.

A system for grit blasting an annular junction portion of a pipeline extending along a longitudinal axis on board a laying vessel, comprises at least one carriage configured to advance along an annular path about the pipeline; at least one centrifugal turbine, which is configured to project grit towards the pipeline, rotates about a rotation axis lying on a plane orthogonal to the longitudinal axis and is supported by the carriage; at least one feed device configured to feed the grit to the centrifugal turbine and comprising a hopper which extends along a respective axis, defines a feed chamber and is coupled to the respective carriage and a guide device configured to act in conjunction with the hopper to feed the grit to the centrifugal turbine at all the operating positions of the carriage.

A system for grit blasting an annular junction portion of a pipeline extending along a longitudinal axis on board a laying vessel, comprises at least one carriage configured to advance along an annular path about the pipeline; at least one centrifugal turbine, which is configured to project grit towards the pipeline, rotates about a rotation axis lying on a plane orthogonal to the longitudinal axis and is supported by the carriage; at least one feed device configured to feed the grit to the centrifugal turbine and comprising a hopper which extends along a respective axis, defines a feed chamber and is coupled to the respective carriage and a guide device configured to act in conjunction with the hopper to feed the grit to the centrifugal turbine at all the operating positions of the carriage.

An abrasive blasting system has an abrasive container or pot, preferably with a downwardly conically shaped interior bottom surface. A slurry delivery tube is positioned within the pot, with an open bottom end positioned at an operative distance above the bottom of the pot. The slurry delivery tube runs vertically upward and exits the pot, ultimately running to a hose and nozzle. With an abrasive slurry of solid particulate abrasive media and water inside the pot, air pressure is applied within the pot. When a relatively lower pressure is created in the slurry delivery tube, the resulting pressure differential moves the slurry downward within the pot, then upward through the slurry delivery tube, through the hose and ultimately to the nozzle, where it is directed by an operator onto a workpiece. The system is especially useful when using very fine abrasive material.

An abrasive blasting system has an abrasive container or pot, preferably with a downwardly conically shaped interior bottom surface. A slurry delivery tube is positioned within the pot, with an open bottom end positioned at an operative distance above the bottom of the pot. The slurry delivery tube runs vertically upward and exits the pot, ultimately running to a hose and nozzle. With an abrasive slurry of solid particulate abrasive media and water inside the pot, air pressure is applied within the pot. When a relatively lower pressure is created in the slurry delivery tube, the resulting pressure differential moves the slurry downward within the pot, then upward through the slurry delivery tube, through the hose and ultimately to the nozzle, where it is directed by an operator onto a workpiece. The system is especially useful when using very fine abrasive material.