An apparatus for abrading surfaces has a first manifold mounted proximate one end of a shaft, and a second manifold mounted distal to one end of the shaft, said first and second manifolds being constructed to receive and distribute a fluid under positive pressure and vacuum pressure, the shaft being connected to the first and second manifolds to support the manifolds and the shaft includes fluid pathways to conduct air and vacuum flows of the fluid between the manifolds, and an end effector for treating surfaces.

An enclosure assembly includes a pan that includes at least one shaft opening. A shroud at least partially surrounds the pan. The shroud extends transversely relative to the pan. A skirt surrounds a perimeter of the shroud and is moveable relative to the shroud.

An air grinder vacuuming assembly includes a shield that is removably attachable to an air grinder such that the shield surrounds a grinding disk on the air grinder. In this way the shield can contain dust and debris produced by the grinding disk. A coupler is coupled to the shield such that the coupler surrounds the drive portion of the air grinder. The coupler is tightenable to engage the drive portion for retaining the shield on the air grinder. A tube is fluidly coupled to the shield such that the tube is in fluid communication with the grinding disk for having the dust and debris pass therethrough. Moreover, the tube is fluidly attachable to a vacuum source to facilitate the dust and debris to be sucked away from the air grinder.

A cover may be used in a tool with a tip tool. The cover may include an inner cover covering at least a part of the tip tool and an outer cover covering at least a part of the inner cover. In the cover, a space between the inner cover and the outer cover may constitute a suction path through which suctioned air flows. In the cover, a shape of the suction path may be changeable by a change in a relative positional relationship between the inner cover and the outer cover.

A cover may be used in a tool with a tip tool. The cover may include an inner cover covering at least a part of the tip tool and an outer cover covering at least a part of the inner cover. In the cover, a space between the inner cover and the outer cover may constitute a suction path through which suctioned air flows. In the cover, a shape of the suction path may be changeable by a change in a relative positional relationship between the inner cover and the outer cover.

A belt grinding apparatus for grinding the tips of rotor blades supported on a rotating rotor. A casing contains the rotatable rotor. An opening in the casing permits access of a grinding belt into the casing where the belt grinds the tips of the blades rotating past. The belt grinding apparatus being attached at the opening at a parting line in the casing.

A belt grinding apparatus for grinding the tips of rotor blades supported on a rotating rotor. A casing contains the rotatable rotor. An opening in the casing permits access of a grinding belt into the casing where the belt grinds the tips of the blades rotating past. The belt grinding apparatus being attached at the opening at a parting line in the casing.

A surface processing device, in particular a manual grinding device, with a processing body which has at least one processing surface for grinding or polishing a workpiece surface, wherein the processing body has a flat surface portion with a flat processing surface for processing flat workpiece surfaces and at least one curved section with a curved processing surface for processing curved workpiece surfaces. The curvature section of the processing device, extends over a side of the processing body opposite to the plane surface portion, wherein the curvature portion has a plurality of continuously merging curvature sections with mutually different radii of curvature and does not project in front of the flat processing surface of the flat surface portion.

A surface processing device, in particular a manual grinding device, with a processing body which has at least one processing surface for grinding or polishing a workpiece surface, wherein the processing body has a flat surface portion with a flat processing surface for processing flat workpiece surfaces and at least one curved section with a curved processing surface for processing curved workpiece surfaces. The curvature section of the processing device, extends over a side of the processing body opposite to the plane surface portion, wherein the curvature portion has a plurality of continuously merging curvature sections with mutually different radii of curvature and does not project in front of the flat processing surface of the flat surface portion.

The disclosure relates to a sanding block for manual use, in particular for manually sanding surfaces, having at least one base plate for holding an abrasive article and at least one sanding block body having a gripping region. According to the disclosure, a rechargeable-battery operated device for removing sanding dust by suction is integrated in the sanding block, said device comprising at least a dust box, a motor housing, in which a drive motor provided with an impeller is provided, and a rechargeable battery for supplying the drive motor with power without an external power supply.