A maintenance device for remotely maintaining the inside of a structure, for example, by deploying a maintenance tool to remotely clean, sandblast using various blast media, and/or paint an interior surface of a building structure.

A method for treating wooden barrels, including a step of spraying a grit-based and/or a slag-based abrasive onto at least one portion of the inside surface of a wooden barrel to remove a damaged layer to separate the grit and/or slag from other residues.

Disclosed herein is a system for surface treating an internal surface of a part. The system comprises a tank within which the part is locatable. The system also comprises a fluid within the tank and capable of submersing the part when the part is located within the tank. The system further comprises a nozzle submersed in the fluid and configured to generate a stream of cavitated fluid directed in a first direction. The system additionally comprises a deflection tool submersed in the fluid and comprising a deflection surface that redirects the stream of cavitated fluid from the first direction to a second direction. The first direction is away from the internal surface of the part and the second direction is toward the internal surface of the part.

A mechanical joint according to which a gasket includes wipers, or protrusions, on an internal surface of the gasket, on an external surface of the gasket, or on both internal and external surfaces of the gasket.

A mechanical joint according to which a gasket includes wipers, or protrusions, on an internal surface of the gasket, on an external surface of the gasket, or on both internal and external surfaces of the gasket.

A method for abrasive flow machining includes moving an abrasive media through a high-aspect passage of a workpiece. Local pressure of the abrasive media is increased at target abrasion surfaces of the high-aspect passage using a passage geometry that is configured to direct flow of the abrasive media into the target abrasion surfaces such that the target abrasion surfaces are preferentially polished by the abrasive media over other, non-targeted surfaces of the high-aspect passage at which the flow of the abrasive media is not directed into.

Invention is a cleaning assembly for cleaning a tire curing mould comprising a turntable (20) mounted on a base plate (12); a cleaning arm (50) extending on the turntable (20) in a movable manner and configured to blow dry ice, and an insulation hood (60) surrounding the cleaning arm (50) wherein the base plate (12) is having an adapter support (16) configured to be gradually widen or narrow for being adapted to the insulation hoods with different diameters on the base plate.

Invention is a cleaning machine for tire curing sidewall (80) that comprises a basket (10), a rotational base (20) which mounted into thereof, a nozzle (60) provided in a movable manner on the rotational base (20), of extending towards the open side of the basket (10) and having an intake (63) connected to inlet (62) in a fluid transferrable manner. The cleaning machine comprises a rotating joint (40) which mounted radially to the outward direction on the rotational base (20) and a telescopic arm (50) which carrying the nozzle (60) at the free end thereof and which of fastened on a rotational base (20) with the rotating joint (40).

A fluid end having a longitudinal bore less than about 36 inches in diameter has an internal surface that is cold-worked to have compressive stresses of at least 15 ksi (103.42 MPa) beneath the metal surface up to about 40 mils (1.016 mm).

A tool for cold-working a metal substrate of a longitudinal bore having a diameter less than about eight inches includes a deflector tip configured to direct accelerated shot having diameters on average not larger than 100 mils (2.54 mm) toward a surface of the metal substrate at an angle between about 70 degrees and about 85 degrees relative to the surface, thereby providing increased compressive stresses in the metal substrate.