Abstract: A module for separating nitrogen from air via hollow-fiber membranes, includes a deflector (8) that communicates with the inlet hole (3) for the pressurized air and is arranged for deflecting the flow of compressed air into the module along paths of flow (9) having a direction that is not directly incident on the first end of the bundle of fibers (1).

Abstract: An air spray painting apparatus for sending a fan of atomized paint spray via a first entrainment flow of carrier fluid and of a second flow of carrier fluid, separate from the first entrainment flow and capable of forming the spray fan, includes electrical heating elements for heating to one and the same temperature the first and second flows of carrier fluid, and a unit for regulation and control of the heating elements.

Abstract: A device for polishing or abrading products (M), includes: a polishing element (1) provided with an operating surface (4) designed to perform a polishing or sanding movement, preferably a circular or orbital movement; motor elements (13) operatively connected to the polishing element (1) for impressing on the operating surface (4) the polishing movement; one or more air ducts (3) extending from an inlet opening (5), which communicates with a source (7) of a flow of treated air, for example dried air, gaseous nitrogen, or modified air rich in nitrogen, to one or more outlets (6) of the flow distributed in an area corresponding to the operating surface (4); and elements (8) for regulating the temperature of the flow of treated air at a value comprised between ?5° C. and +20° C.

Abstract: A module for separating nitrogen from air via hollow-fibre membranes, includes a deflector (8) that communicates with the inlet hole (3) for the pressurized air and is arranged for deflecting the flow of compressed air into the module along paths of flow (9) having a direction that is not directly incident on the first end of the bundle of fibres (1).

Abstract: An automatic air spray painting apparatus, includes a painting device (2), a module (17), supplied by a source (1) of pressurized ambient air for continuous production of a flow of carrier fluid constituted by high-purity (98%-99.9%) nitrogen, elements (19, 24, 25) for regulating the pressure of the flow of nitrogen, and adjustable elements (18, 9, 26) for heat conditioning of the flow of nitrogen.

Abstract: A device and method for electrostatic powder coating include: obtaining continuously a working fluid constituted by air deprived of undesirable substances; supplying the working fluid, between 0.5 bar and 10 bar, in a container containing an amount of coating powder; extracting from the container; a first flow made up of working fluid and powder; atomizing the first flow with working fluid at a pressure of between 0.5 bar and 10 bar; supplying working fluid at a pressure of between 0.5 bar and 10 bar to create a second transport flow made up of working fluid and atomized powder; charging the second flow electrostatically under pressure; and sending the second electrostatically charged flow of working fluid and atomized powder onto a substrate, at a temperature of between ?15° C. and +45° C., and a device and method for electrostatic painting including heating/cooling temperature adjustment of the painting mixture.

Abstract: An air spray painting apparatus for sending a fan of atomized paint spray via a first entrainment flow of carrier fluid and of a second flow of carrier fluid, separate from the first entrainment flow and capable of forming the spray fan, includes electrical heating elements for heating to one and the same temperature the first and second flows of carrier fluid, and a unit for regulation and control of the heating elements.

Abstract: A device and method for electrostatic powder coating include: obtaining continuously a working fluid constituted by air deprived of undesirable substances; supplying the working fluid, between 0.5 bar and 10 bar, in a container containing an amount of coating powder; extracting from the container; a first flow made up of working fluid and powder; atomizing the first flow with working fluid at a pressure of between 0.5 bar and 10 bar; supplying working fluid at a pressure of between 0.5 bar and 10 bar to create a second transport flow made up of working fluid and atomized powder; charging the second flow electrostatically under pressure; and sending the second electrostatically charged flow of working fluid and atomized powder onto a substrate, at a temperature of between ?15° C. and +45° C., and a device and method for electrostatic painting including heating/cooling temperature adjustment of the painting mixture.

Abstract: A method and an apparatus for industrial and professional electrostatic painting, in accordance with ionization parameters predetermined according to the type of material to be painted and implemented using an electrostatically charged pressurized carrier fluid (whether positively charged, negatively charged, or in the neutral plasma state) combined to a flow of atomized liquid paint or powder paint, including a step of oxygen-enrichment of the paint-carrier fluid in order to obtain a higher degree of electrostatic grip of the carrier fluid.

Abstract: An apparatus for thermal stabilization according to predetermined parameters that is designed for and can be coupled to atomization devices for air spray-painting systems, of the type including a body (1) made of a thermally conductive material provided with at least one outlet (2) for a flow of atomized paint, and provided inside with an atomization circuit (4) including a first duct (5) for delivery of a pressurized atomization fluid and a second duct (6) for supplying an amount of paint to be atomized, the apparatus including: a conductive body (9) in thermal contact with the body of the atomization device; adjustable elements for heat conditioning of the conductive body; and sensors (11) for detecting the temperature of the heat-exchanger body in order to enable or disable the heat-conditioning elements in response to a difference between the detected temperature (Tr) and a desired temperature (Tv) of the conductive body.

Abstract: A device and method for electrostatic powder coating include: obtaining continuously a working fluid constituted by air deprived of undesirable substances; supplying the working fluid, between 0.5 bar and 10 bar, in a container containing an amount of coating powder; extracting from the container; a first flow made up of working fluid and powder; atomizing the first flow with working fluid at a pressure of between 0.5 bar and 10 bar; supplying working fluid at a pressure of between 0.5 bar and 10 bar to create a second transport flow made up of working fluid and atomized powder; charging the second flow electrostatically under pressure; and sending the second electrostatically charged flow of working fluid and atomized powder onto a substrate, at a temperature of between ?15° C. and +45° C., and a device and method for electrostatic painting including heating/cooling temperature adjustment of the painting mixture.

Abstract: A system and device for spray painting using a flow of pressurised carrier fluid comprises a central source of the carrier fluid and one or more local elements for heating the fluid close to the point of use.

Abstract: A system and device for spray painting using a flow of pressurised carrier fluid comprises a central source of the carrier fluid and one or more local elements for heating the fluid close to the point of use.

Abstract: A spray painting device comprising a heated tube (15) for pre-heating the carrier fluid for painting.

Abstract: A device for optimizing the production of nitrogen obtained from compressed air using hollow fiber separation membranes, in which a flow of preheated compressed air is destined for the separation membrane and heats up the outside of the membrane.

Abstract: Spray-painting apparatus and method in which provision is made for: an inlet for the air under pressure; a heating unit for the compressed air; an air drying/separation unit including hollow-fiber membranes; adjustment of the heating of the treated air; adjustment of the pressure of the treated air; adjustment of either the dew point or the percentage of oxygen in the treated air in the case of hollow fiber membranes for nitrogen separation; and an outlet for the treated air to be used as paint carrier fluid.

Abstract: Spray-painting apparatus and method in which provision is made for: an inlet for the air under pressure (AIR IN); a heating unit (G1) for the compressed air; an air drying/separation unit (G2) consisting of hollow-fibre membranes; means (3, 15, 16) to adjust heating of the treated air; means (13) to adjust pressure of the treated air; means (10, 19) for adjusting either the dew point or the percentage of oxygen in the treated air in the case of hollow-fibre membranes for nitrogen separation; an outlet for the treated air (AIR OUT)to be used as paint carrier fluid.

Abstract: A thread or wire is carried by a guide roller of a carriage along a path between a feed source and a winding spool. The carriage may be displaced in opposite directions at a regulated speed by a worm screw to overlay layers of turns on previously laid layers of turns in a regular arrangement of side by side turns. A lever pivoted on the carriage has a fork at one end. The fork is arranged between the guide roller and spool and the thread passes therethrough. The other, free end of the lever is situated between two switches or photocells detecting any pivoting of the lever. At one or the other ends of the spool, the angle or slant of the thread relative to the spool changes because the thread engages with the side walls of the spool. This pivots the lever, by way of the fork, and actuates one or the other of the two switches or photocells, which in turn causes a reversal of the displacement of the carriage.