Abstract: The present disclosure discloses a novel sandblasting gun. The novel sandblasting gun includes a gun body. The gun body includes an air inlet port, an air outlet port and an air channel. One end of the air channel is connected to the air inlet port and the other end of the air channel is connected to the air outlet port. Further, the gun body further includes a first feed port, a second feed port and a control valve. The first feed port and the second feed port are respectively connected to the air outlet port. A spraying material can enter the air outlet port via the first feed port and the second feed port; and the control valve is configured to control opening and closing of the first feed port and the second feed port.

Abstract: A portable wet sand blasting device or a portable wet sand blaster with a specially designed and shaped hand truck tank with an inclined side, wheels, axle, base feet, and a handle to allow the heavy device to be more easily moved from job to job. The specially designed and shaped hand truck tank includes a special pump and special internal plumbing and mixing outputs that provide optimum water and abrasive slurry mixing wherein sufficient slurry mixing is required for the effective use of a wet sand blasting device.

Abstract: An improved wet abrasive blast machine with remote control rinse cycle enables a pilot operating the apparatus to control remote switching between blast and rinse cycles directly, for example from a nozzle of a blast hose or from a panel. A first and second hydraulic circuit and a pneumatic circuit are controllable via communication with a control circuit which is operable remotely to direct a configurable pilot signal between various valve states. In a preferred embodiment, the control circuit is powered pneumatically via a branch circuit fed from the pneumatic circuit. Switching between to configurations is effected by directing an air pilot signal between airflows interior to a series of valves. In an alternate embodiment switching airflows between configurations is effected electrically.

Abstract: A hand-held ejector tool for ejecting a pressurized stream of abrasive materials and a hopper assembly for use in the same is provided. The hand-held ejector tool includes a pressurized air source, a hopper assembly and a delivery conduit for ejecting a pressurized stream of abrasive material. The hopper assembly includes a containment area to store an abrasive material, an air conduit to receive pressurized air from the pressurized air source, a one-way valve to provide the pressurized air into an upper portion of the containment area, and a mixing device to mix the abrasive material and the pressurized air to create a pressurized stream of abrasive material. The delivery conduit may include a stylus to permit a controllable ejection the pressurized stream of abrasive material.

Abstract: To provide a apparatus for processing an object by projecting shots thereon that can be downsized and can use shots of appropriate sizes. A pressure tank 42 is disposed below a position 24X where an object to be processed 12 is projected. The shots that have been projected are received by the tank 42. The discharging portion of the tank 42 is communicated with a device for projecting shots. One end of a piping for transporting air for a discharge 54 that can suction shots is connected to a position between the position 24X and the tank 42. The other end of the piping 54 is connected to a separator 68. The separator 68 is connected to one end of the piping for transporting air for a supply 76 that can suction shots. The other end of the piping 76 is communicated with the room for projecting the shots 16.

Abstract: The purpose of this invention is to reduce the changes in the conditions of the processing for projecting shots, and to downsize the air-type shot-treatment machine 10 and simplify its structure.

Abstract: A nozzle, a nozzle unit having a plurality of nozzles, and a blasting machine equipped with the nozzle unit, which can achieve a micro-machining with a high precision and a high productivity for the blasting process. A portion for escape 13c is formed at the distal end of the ejecting portion 13 of the nozzle 11, so if the distance between the surface of the work and the nozzle 11 is shortened to suppress the broadening of the flow of the abrasives, the reflected abrasives do not remain within the space between the surface of the work and the distal end of the ejecting portion 13. Thus, a blasting process with a high precision can be achieved. Further, since two nozzles 11m and 11n can be arranged so as to correspond to the width of the surface of the work to be processed by a rotational device 16, it is possible to blast a wider area of the surface of the work while the nozzle unit 10 or the blasting machine 20 sweep one time. Thus, the high productivity of the blasting process can be achieved.

Abstract: A micro-abrasive blasting device comprises a mixing chamber, a delivery conduit extending from external the mixing chamber to the mixing chamber and a discharge conduit extending from the mixing chamber. Embodiments having delivery and discharge conduits extending from the same, or from opposite ends of the mixing chamber are disclosed. Abrasive material may selectively be sealed in the chamber by positioning the discharge conduit to abut the inlet port. Other sealing techniques are disclosed, such as capping or plugging the delivery and discharge conduits. The chamber may be spherical to deliver consistent powder perturbation at all mixing chamber orientations. Methods of using the device are disclosed. Methods of making the device by blow molding are disclosed.

Abstract: A fluid jet system providing a hydraulic induction manifold for at least two valves. The manifold is positioned “upstream” of an abrasives holding tank, so that no abrasive material flows through the valves and the manifold. The valves and the manifold provide pressurized fluid for at least two different flows: (1) a primary fluid flow and (2) an abrasive material flow through the abrasives holding tank. The two flows are merged again at a junction to provide a fluid flow having a predetermined abrasive-to-fluid mixture ratio. The manifold balances the pressure of the two different flows using a preset geometric relationship between the two different output flow paths associated with the valves.

Abstract: Wet abrasive systems typically have a combination of equipment, controls, and piping systems that allow various fluid flows to be controlled in order to provide the various operations. A fluid control circuit is used to provide fluid to the correct locations for each operation. A fluid control circuit has a multiport selector valve. The selector valve allows selective fluid communication between the fluid inlet and either a first fluid outlet or a second fluid outlet. A first piping system is in fluid communication with the first fluid outlet and a second piping system is in fluid communication with the second fluid outlet. The fluid control circuit may also have jumper piping system between the first piping system and the second piping system. The combination of a multiport selector and the piping systems provide a convenient blast system to operate.

Abstract: An abrasive blasting apparatus comprises a blast pot, a blast media valve fluidly connected to said blast media outlet of the blast pot, a source of pressurized gas, a proportional air valve in fluid communication with the blast media valve and the source of pressurized air, a hose having a blast nozzle at a distal end thereof, and a main control unit fluidly connected to the blast media valve and the air valve. The blast media valve comprises a housing having a blasting media intake, a plunger disposed within the housing, a sleeve disposed between the housing and the plunger, a blast media port in the sleeve, a casing fixedly connected to the housing, a piston disposed within the casing and connected to the plunger, and a base member fixedly connected to the housing. The plunger is movable by the piston with respect to the blast media port.

Abstract: An object of the present invention is to provide a revolutionary support material removing method which exhibits operational effects not seen in conventional practice. The present invention is a support material removing method for removing a support material (2) located on a surface (1a) of a three-dimensional object (1) molded by a three-dimensional forming device, wherein a slurry (5) which is a mixture of a liquid (3) and abrasive grains (4) is sprayed from a slurry sprayer (6) to remove the support material (2).

Abstract: An air-actuated clamping assembly that is quickly actuated to secure a workpiece in place during machining operations, such as on a waterjet machine. The clamping operation is completed within seconds after a workpiece is placed (for example, when used in conjunction with a waterjet machine) onto the waterjet machine slats. The system greatly minimizes set-up time, allows for an adjustable clamping force, allows for one operator to set up workpieces, keeps the workpiece firmly in place and prevents movement during the machining process, is adaptable to various waterjet brands and models, and is air-actuated so that typical “house air” can be utilized.

Abstract: A scraper and sandblaster assembly is presented including a sandblaster having at least a debris collection cover and a granular particle container for holding granular particles and a scraper configured to operate with the sandblaster, wherein the granular particle container includes a plurality of separate and distinct chambers, each chamber including a different granular particle. The sandblaster includes at least one actuation mechanism for selectively or collectively dispensing the different granular particles.

Abstract: A blast cabinet, translation system, and process for use in blasting a surface of a part with abrasive particulate. The blast cabinet includes a basin for gathering abrasive particulate, a covering movable to enclose an opening over the basin, a frame supporting the basin, and a plurality of wheels for rolling movement of the cabinet. The system also includes a plurality of supports for holding the part to be blasted and a track system to guide movement of the cabinet. At least one of the wheels may be configured to mate with the track system, and the track system can be clamped to at least one part support.

Abstract: A blasting apparatus capable of increasing suction power to collect an abrasive without exerting any influence on processing of a work surface with the abrasive. The apparatus includes a blasting nozzle (2) blasting an abrasive (100) on a surface (200a) of work (200), a cover (10) including a surface (10a) for airflow alignment parallel to the work surface and a blast hole (10b) through which the abrasive from the nozzle passes, a nozzle case (9) including the cover and surrounding the nozzle, and a collecting case (11) covering an outer surface of the nozzle case and including a collecting passage (11c) disposed around the nozzle case, from the passage, the abrasive being collected by suction, wherein the apparatus collects the abrasive that is blasted from the nozzle and strikes the work surface from the passage through a clearance (13) provided between the airflow-alignment surface and the work surface.

Abstract: The invention relates to a gun for spraying liquid at a very high pressure, referred to as a focusing gun, and to a method for manufacturing same, according to which two elongate parts (2) are manufactured to be assembled so as to form the focusing gun. Each of said parts includes an assembly surface (J) comprising a central groove (3) for forming the duct of the focusing gun once the parts have been assembled, and a gluing tank (9) for being filled with an adhesive substance. Further, at least one of said parts (2) has a centering rib (6), projecting relative to the assembly surface thereof, while the other part has, for each centering rib (6), a centering cavity (7), the size of which is suitable for tightly housing said centering rib.

Abstract: A scraper and sandblaster assembly including a sandblaster and a scraper is presented. The sandblaster has a gun-like configuration, including a handle portion having a trigger mechanism; an air inlet portion operably coupled to the handle portion and to an air supply source; a nozzle portion distally disposed with respect to the handle portion; and a granular particle container mounted thereon for holding granular particles. The scraper is in cooperative engagement with the sandblaster, the scraper configured to operate concurrently or simultaneously with the sandblaster. The assembly also includes a debris collection cover encompassing at least a distal portion of the sandblaster and the scraper, the debris collection cover supported on the nozzle portion of the sandblaster.

Abstract: A micro-abrasive blasting device comprises a mixing chamber, a delivery conduit extending from external the mixing chamber to the mixing chamber and a discharge conduit extending from the mixing chamber. Abrasive material may selectively be sealed in the chamber by positioning the discharge conduit to abut the inlet port. The chamber may be spherical to deliver consistent powder perturbation at all mixing chamber orientations. Methods of using the device are disclosed. Methods of making the device by blow molding are disclosed.

Abstract: A sand blaster is provided that includes an engine carried by an engine mounting plate. A frame is included and an engine support isolator engages the frame and carries the engine mounting plate. The engine support isolator has a stud that extends through a first coil and a stud guide that has a tapered inner surface. The stud extends through the stud guide. In other arrangements an air regulator that is adjustable is provided, and a nozzle that features reduced wear is provided.

Abstract: A micro-abrasive blasting device comprises a mixing chamber, a delivery conduit extending from external the mixing chamber to the mixing chamber and a discharge conduit extending from the mixing chamber. Abrasive material may selectively be sealed in the chamber by positioning the discharge conduit to abut the inlet port. The chamber may be spherical to deliver consistent powder perturbation at all mixing chamber orientations. Methods of using the device are disclosed. Methods of making the device by blow molding are disclosed.

Abstract: A containment assembly is described that includes a flexible enclosure and a panel attached to the flexible enclosure. The flexible enclosure includes a first opening that defines a periphery that is operable for attachment around a work area. The panel is attached to the enclosure about a periphery defined by a second opening in the enclosure. A sealable access port is also associated with the enclosure, operable to provide a user with access to an interior of the enclosure.

Abstract: A fluid jet system providing a hydraulic induction manifold for at least two valves. The manifold is positioned “upstream” of an abrasives holding tank, so that no abrasive material flows through the valves and the manifold. The valves and the manifold provide pressurized fluid for at least two different flows: (1) a primary fluid flow and (2) an abrasive material flow through the abrasives holding tank. The two flows are merged again at a junction to provide a fluid flow having a predetermined abrasive-to-fluid mixture ratio. The manifold balances the pressure of the two different flows using a preset geometric relationship between the two different output flow paths associated with the valves.

Abstract: Surface blasting device using a jet of compressed air, fine grain blasting materials and liquid, said device comprising a frame, a first reservoir for storing a fluid put under pressure by a pump, a second reservoir for storing a fine grain blasting materials pressurized by compressed air means, a motor, blasting means, cooling means, an alternator, energy storage means for supplying the device with energy and connecting means for connecting the blasting means with the first and second reservoir. The blasting means comprise a blasting nozzle with an outer body having a tapered bore which extends over the full length of the outer body, said nozzle being arranged on a handle provided with a trigger, said handle being connected to the connecting means to turn the liquid and the compressed air/blasting materials mixture on or off.

Abstract: A tip component of a powder blasting device comprising a powder delivery portion and a detritus evacuation portion (evacuator tube) which may be formed as a single unit. The powder delivery portion comprises a mixing chamber, an inlet port and an outlet port. A gas delivery conduit extends to the inlet port. A discharge conduit extends through the outlet port and is movable to selectively seal powder within the mixing chamber. The detritus evacuation portion comprises an elongate tube. An adapter component comprises a pressurized-air delivery portion and a vacuum portion, formed as a single unit. A pressurized air source provides pressurized air to a pressurized-air delivery portion of the adapter component; and a vacuum source provides vacuum to a vacuum portion of the adapter component. An evacuator handpiece may be disposed between the vacuum portion of the adapter component and the evacuator tube of the tip component.

Abstract: A fluid jet assembly includes a non-pressurized lance barrel through which a high pressure hose (“a lance hose”) is threaded and anchored at the distal end of the lance barrel relative to an operator's position. The other end of the lance hose is coupled to a high pressure fluid source. The fluid is fed into the lance hose and transported to the output of the lance barrel, where it is discharged as a fluid jet stream. A nozzle is mounted at the output of the lance barrel to control the characteristics of the fluid jet flowing out of the lance hose. When infused with an abrasive material, the fluid jet stream exits the nozzle in a focused jet capable of cutting through most structural surfaces.

Abstract: A nozzle assembly (1) generates a jet (9) of water, or abrasive particles suspended in water, for use in an abrasive waterjet-cutting head. The nozzle assembly (1) comprises a nozzle element (5, 80, 84, 86, 91) with a tapering bore (7) therethrough, mounted to a carrier (2, 52) so that the bore (7) is connected coaxially to a passage (4) through the carrier (2, 52), the bore (7) and passage (4) preferably having the same diameter where they meet. The nozzle element comprises a superhard material, such as diamond, in the form of a solid body (5, 81, 83, 86) or a coating (90). The nozzle element is mounted to the carrier (2, 52) by a brazed or soldered joint (6), extending normally to a longitudinal axis of the passage (4) and bore (7).

Abstract: The invention relates to an apparatus for surface processing or surface treatment by means of dry ice granulate, with a reservoir for receiving a dry ice medium, in particular dry ice pellets, an inlet for the feed of a propellant medium, an outlet for the supply of a mixture of propellant medium and dry ice granulate to a blast gun, and an outflow chamber lying therebetween, there being arranged in the path between the reservoir and the outflow chamber a grinding mechanism, which is formed so as to comminute the dry ice medium to dry ice granulate with a particle size in a prescribed range, and a transport roll (4) being arranged between the grinding mechanism (3) and the outflow chamber (59), the transport roll (4) being operable with a variable speed so as to vary the quantity of the particles of the dry ice granulate per unit time. Furthermore, the invention relates to a corresponding method and the use of the method.

Abstract: A dual capability ultra high pressure (UHP) fire attack system includes a fluid jet assembly and an UHP attack line system. The fluid jet assembly and the UHP attack line system are coupled to a high pressure fluid source. The fluid is discharged from both the fluid jet assembly and the UHP attack line system as a mist have a droplet diameter of approximately 150 microns. When infused with an abrasive material, the fluid jet assembly may be used to cut through structural surfaces, so that a fire may be “knocked down” before the fuel source is attacked.

Abstract: A micro-abrasive blasting device and method for perturbation control may use a plurality of delivery conduits of various lengths and/or apertures, or a single moveable delivery conduit. The user is able to individually open and close bypass conduit pinch valve(s) external to micro-abrasive blasting device to affect the perturbation intensity internal to the mixing chamber. By selectively opening and closing flow through delivery conduits it is possible to provide a more consistent perturbation rate and select the perturbation intensity internal to mixing chamber.

Abstract: A waterjet system selectively produces fluid jets for water jet cutting or abrasive jets for abrasive-waterjet-cutting. The abrasive materials in the abrasive jet are determined based on the properties of the workpiece. The waterjet system includes an abrasive delivery system that is capable of delivering either a single abrasive or a plurality of abrasives as an abrasive blend, to a cutting head assembly. The cutting head assembly entrains the abrasive into a fluid jet to form an abrasive jet.

Abstract: A micro-abrasive blasting device comprises a mixing chamber, a delivery conduit extending from external the mixing chamber to the mixing chamber and a discharge conduit extending from the mixing chamber. Abrasive material may selectively be sealed in the chamber by positioning the discharge conduit to abut the inlet port. The chamber may be spherical to deliver consistent powder perturbation at all mixing chamber orientations. Methods of using the device are disclosed. Methods of making the device by blow molding are disclosed.

Abstract: A media blast nozzle for cleaning a surface with compressed air and ejected particles of a sublimating blast media comprises a media size changer to change a size of the blast media particles. The media blast nozzle has an entrance and an exit and a throat therebetween. A converging passageway extends from the entrance to the throat, and a diverging passageway extends from the throat to the exit. The media size changer is operably located in the diverging passageway and has one or more media size changing members to fragment moving blast media particles by impact therewith. The blast media particles are provided to the media blast nozzle in an initial consistent size, and when a moving blast media particle impacts with one or more media size changing members, two or more fragments of reduced size are created from the initial blast media particle for ejection from the nozzle device. The media size changer can be adjusted by an operator to eject whole particles or fragments of particles.

Abstract: A micro-abrasive blasting device and method for perturbation control using a plurality of delivery conduits of various lengths and/or apertures. The user is able to individually open and close bypass conduit pinch valve(s) external to micro-abrasive blasting device to affect the perturbation intensity internal to the mixing chamber. By selectively opening and closing flow through delivery conduits it is possible to provide a more consistent perturbation rate and select the perturbation intensity internal to mixing chamber.

Abstract: The invention relates to a device for comminuting dry ice granules, comprising a housing having a flow channel for dry ice granules which can be applied, by means of compressed gas, to a surface to be cleaned, and also comprising a first comminution member for comminuting the dry ice granules which are to be dispensed. In order to provide a device of this kind with which different degrees of comminution of dry ice granules can be achieved in a simple manner, it is proposed according to the invention that the device has at least one second comminution member which can be disposed in the housing in a position in which a total degree of comminution, which is greater than the individual degree of comminution which can be achieved solely by the first comminution member, can be achieved in combination with the first comminution member. A dry ice dispensing arrangement for dispensing a mixture of compressed gas and dry ice granules is also proposed, having a device of the above kind.

Abstract: An abrasive blaster system includes a storage tank for storing dry granular abrasive media, a source of pressurized air and a metering valve for mixing the granular abrasive media with the pressurized air for release through a blast nozzle. A cooling system is in line with the source of pressurized air for cooling the air received from the source before it is introduced to the metering valve, whereby cooled air is introduced into the metering valve. The system also includes a dryer system downstream of the cooling system and adapted for selectively receiving a portion of the cooled air for further drying it. The dryer system is in communication with the storage tank, whereby cooled, dry air is introduced into the storage tank.

Abstract: The present invention is a micro-abrasive blasting device (55) with superior perturbation control via a plurality of delivery conduits (25) of various lengths and apertures. The user is able to individually open and close bypass conduit pinch valve (99) external to micro-abrasive blasting device (55) to affect the perturbation intensity internal to the mixing chamber (23). By selectively opening and closing flow through delivery conduits (25) it is possible to provide a more consistent perturbation rate and select the perturbation intensity internal to mixing chamber (23).

Abstract: A method of producing a mold for use in duplicating a light diffusion sheet is provided. The method includes a step of conducting sand blasting for blasting abrasive material from a blast gun to a surface of a mold base material to form unevenness in the surface of the mold base material, wherein the abrasive material is blasted to the surface of the mold base material at a blast angle of less than 90°.

Abstract: A method for generating a jet of dry ice particles, in which liquid carbon dioxide is expanded in an expansion space (12) in order to form dry ice particles which are then introduced into a flow of a carrier gas, and the discharge of the dry ice particles from the expansion space (16) is throttled by a constriction (20, 26; 28; 30; 32; 36; 38).

Abstract: A fluid jet assembly includes a non-pressurized lance barrel through which a high pressure hose (“a lance hose”) is threaded and anchored at the distal end of the lance barrel relative to an operator's position. The other end of the lance hose is coupled to a high pressure fluid source. The fluid is fed into the lance hose and transported to the output of the lance barrel, where it is discharged as a fluid jet stream. A nozzle is mounted at the output of the lance barrel to control the characteristics of the fluid jet flowing out of the lance hose. When infused with an abrasive material, the fluid jet stream exits the nozzle in a focused jet capable of cutting through most structural surfaces.

Abstract: A fluid jet system providing a hydraulic induction manifold for at least two valves. The manifold is positioned “upstream” of an abrasives holding tank, so that no abrasive material flows through the valves and the manifold. The valves and the manifold provide pressurized fluid for at least two different flows: (1) a primary fluid flow and (2) an abrasive material flow through the abrasives holding tank. The two flows are merged again at a junction to provide a fluid flow having a predetermined abrasive-to-fluid mixture ratio. The manifold balances the pressure of the two different flows using a preset geometric relationship between the two different output flow paths associated with the valves.

Abstract: The invention relates to a device for comminuting dry ice granules, comprising a housing having a flow channel for dry ice granules which can be applied, by means of compressed gas, to a surface to be cleaned, and also comprising a first comminution member for comminuting the dry ice granules which are to be dispensed. In order to provide a device of this kind with which different degrees of comminution of dry ice granules can be achieved in a simple manner, it is proposed according to the invention that the device has at least one second comminution member which can be disposed in the housing in a position in which a total degree of comminution, which is greater than the individual degree of comminution which can be achieved solely by the first comminution member, can be achieved in combination with the first comminution member. A dry ice dispensing arrangement for dispensing a mixture of compressed gas and dry ice granules is also proposed, having a device of the above kind.

Abstract: A micro-abrasive blasting device comprises a mixing chamber, a delivery conduit extending from external the mixing chamber to the mixing chamber and a discharge conduit extending from the mixing chamber. Abrasive material may selectively be sealed in the chamber by positioning the discharge conduit to abut the inlet port. The chamber may be spherical to deliver consistent powder perturbation at all mixing chamber orientations. Methods of using the device are disclosed. Methods of making the device by blow molding are disclosed.

Abstract: The present invention is a micro-abrasive blasting device (75) constructed from a disposable pipette structure (80) comprising a delivery conduit (30) extending from a delivery conduit inlet (35) through a tapered section (33) to form a delivery conduit outlet (37) and a inlet port (27); contiguous pipette structure (80) expands from inlet port (27) to form a hollow bulb mixing chamber (23) and then narrows to form a discharge port (29) section; a discharge conduit (10) is in fluid communications with discharge port (29) and extends from a discharge conduit inlet (12) internal to mixing chamber (23) to a discharge conduit outlet (14) external to mixing chamber (23); a particulate matter (50) is disposed within mixing chamber wall (25); discharge conduit inlet (12) abuts inlet port (27) preventing particulate matter (50) from exiting mixing chamber 23.

Abstract: A nozzle assembly for a tool which utilizes a particulate/fluid mixture comprises a unique floating ferrule within a handpiece assembly, and eliminates the need, in the prior art, for a nose piece to attach a nozzle to the handpiece assembly. Rather, the nozzle and its integral holder are designed so that a hose may be slipped over its extended rear tube and then, when the handpiece with its floating ferrule is twisted on, the hose is captured and sealed. This is managed because the ferrule is unengaged when the handpiece tube is first started to be threaded onto the nozzle holder. After a few turns, the ferrule pushes against the hose and seals it against the rear extension of the nozzle holder. When the handpiece is unscrewed from the nozzle, because the nozzle must be replaced, the ferrule remains attached to the nozzle and hose, allowing for easy turning. Once the handpiece is unscrewed from the nozzle, the nozzle may be tipped slightly to disengage it from the hose very easily.

Abstract: A method for generating a jet of dry ice particles, in which liquid carbon dioxide is expanded in an expansion space (12) in order to form dry ice particles which are then introduced into a flow of a carrier gas, and the discharge of the dry ice particles from the expansion space (16) is throttled by a constriction (20, 26; 28; 30; 32; 36; 38).

Abstract: A particulate blasting apparatus includes a blast vessel having an interior for storing abrasive particulate. The blast vessel has an inlet for introducing a pressurized gas into the interior of the blast vessel and an outlet for allowing the passage of the pressurized gas and particulate. A flexible blast hose is coupled at one end to the outlet for directing particulate flow from the outlet and a blast nozzle is coupled to an opposite end of the blast hose. A metering valve regulates different amounts of particulate flow from the blast vessel through the outlet. A flow actuator is coupled to the metering valve for actuating the metering valve. A controller associated with the blast nozzle in communication with the actuator controls the actuator from the blast nozzle during blasting operations. The blasting apparatus may be used as part of a blasting system that includes a compressor unit for providing the pressurized gas.

Abstract: An adjustable sand blasting gun has a body, a sand inlet and an adjusting device. The body has a chamber, a blasting head, a mounting tube and a connecting pipe. The blasting head is attached to the body and communicates with the chamber. The mounting tube is formed on the body. The connecting pipe is formed on and laterally extends from the mounting tube. The sand inlet is attached to the mounting tube and has a passage and a through hole. The passage is formed through the sand inlet and communicates with the chamber. The through hole is formed through the sand inlet and communicates with the connecting pipe. The adjusting device is connected to the body and the sand inlet and has an adjusting post and a mounting pin. The adjusting post is connected to the connecting pipe and the sand inlet. The mounting pin is connected to the adjusting post.

Abstract: An abrasive cleaning apparatus comprising a single-block plastic blasting booth having a front wall, a rear wall, a top wall, a bottom wall, and side walls, wherein at least a portion of one of the side walls defines an opening closeable by a door, thereby providing access inside the single-block blasting booth, and wherein one or more gaskets create a hermetic seal between the single-block blasting booth and the openable side wall portion, the one or more gaskets being provided on one or more of the opening and the door. The abrasive cleaning material may comprise sodium bicarbonate or a granular mixture containing sodium bicarbonate.

Abstract: A micro-abrasion device includes a base station, a handpiece configured to spray a powder onto skin, a flexible supply pipe configured to supply powder from the base station to the handpiece, a flexible return pipe configured to return powder from the handpiece to the base station, a first reservoir containing a powder to be supplied to the handpiece via the flexible supply pipe and a first reservoir endpiece initially closed by a puncturable seal, and a second reservoir configured to collect powder returning via the flexible return pipe. The first reservoir and the second reservoir are assembled together and mounted onto the base station during use. Once mounted, the seal is punctured. Preferably the first and second reservoirs are configured so that they cannot be interchangeably mounted on the base station. This prevents reuse of the collected used powder in the second reservoir.