Abstract: A process and apparatus for locally removing any material, such as a refractory metal, in particular tungsten, from any desired area of a wafer, such as an alignment mark area of a silicon wafer in process during the formation of integrated circuits thereon.

Abstract: In this disclosure, air flow is formed above chemical liquid film and a move of the chemical liquid is generated by making the air flow into a contact with the surface of chemical liquid. Further, a negative pressure is generated in a space between a processing object substrate and a plate by rotating the plate. Consequently, uniformity of processing of chemical liquid is improved, so that liquid removing step can be carried out effectively. As a result, yield rate of chemical liquid treatment can be improved.

Abstract: The multi functional cleaning module comprises a plurality of air curtain, an eximer ultraviolet light irradiating device, a brush, a high-speed shower device, and an air knife, where they are arranged continually on a plan and the glass substrates are inserted continually into them. The cleaning apparatus using the multi functional cleaning module comprises a driving part having a loading and an unloading portions as well as the multi functional cleaning module.

Abstract: A cutting blade detection mechanism for a cutting machine, having a blade passing gap into which a cutting blade for cutting a workpiece passes, and a light emitting means and a light receiving means both of which face the blade passing gap, wherein the cutting blade mechanism comprises cleaning water supply nozzles for supplying cleaning water to the end surfaces of the light emitting means and the light receiving means and air supply nozzles for supplying air to the end surfaces of the light emitting means and the light receiving means.

Abstract: A machine for cleaning outer wall of a high-rise building pushed by a rotating propeller which is at the back of the machine outside a case having rotating brushes chambers, driven by an engine or a motor to press against a wall to be cleaned comprises: a case divided into chambers having an opened-anterior side where edges of all the chambers having rubber plates or brushes mounted all along their rims. In each chamber, there is a rotating brush (or brushes) for scrubbing where detergent solution or water may be ejected onto the rotating brush. At the back of each chamber there is a tube for draining used liquid away or keeping in a reservoir of the machine. There are steel plates mounted vertically one to the top and one to the bottom of the case, where a rubber plate is mounted horizontally along the top steel plate to help wiping off liquid film left on the surface of the wall.

Abstract: A process and apparatus for locally removing any material, such as a refractory metal, in particular tungsten, from any desired area of a wafer, such as an alignment mark area of a silicon wafer in process during the formation of integrated circuits thereon.

Abstract: Apparatus for cleaning a surface, comprising brush means including a body (16) which carries bristles (17) engageable with the surface; means for effecting movement of the bristles relative to the surface, to provide an agitating cleaning action thereon; said bristle-carrying body further being provided with steam delivery means (20, 21) for applying steam to said surface in a region thereof engaged by said bristles. The apparatus may be for cleaning a conveyor belt (10), with the brush in the form of a drum (16) rotatable about an axis (18) parallel to the conveyor belt with the steam passing through the drum and emerging through peripheral apertures (21), the brush being disposed within a hood (15) with an extraction system for loosened dirt and water.

Abstract: A street sewer passive clean-out system is provided as a system and method to aid municipal workers in the cleaning of street sewers. A net type screen is provided on the end of a fiberglass pole. The pole would be variable in length from eight feet to sixteen feet. The screen would be available in 7, 9 and 11 inch sizes and would be interchangeable on the end of the pole.

Abstract: With a work device that holds to a surface by vacuum pressure and can move on the surface to perform jobs and is connected to a base station through a supply line, there exists a danger that the work device will fall if the attractive force (vacuum pressure) weakens. To prevent such danger, the work device is connected to the base station through a safety line, with which it is possible to stop the fall of work device. As such, the work device can also be utilized in locations where it could fall from a great height in the event of failure, for instance, on the outside of buildings.

Abstract: A shield useful, in conjunction with an air gun with a medium conduit, in flushing debris from a blind hole. It comprises a case, an exhaust clearance, a hanger, a bottom clearance, and at least one guide with a clearance, and a plug useful for plugging an unused guide clearance. The medium conduit is inserted through a guide clearance which directs a medium, such as compressed air or nitrogen or liquid, towards the blind hole. The medium and debris from the blind hole flow out the exhaust clearance.

Abstract: A carpet cleaning system that delivers heated cleaning water from a truck to a carpet cleaning apparatus and an improved waste disposal tank designed to receive the waste water and deposit it into the toilet or sewer drain when the disposal tank is full. The disposal tank is divided into an upper primary recovery tank and a lower recovery tank. A main vacuum line and waste water return line are connected to the primary recovery tank. Disposed between the primary and secondary recovery tanks is a first check valve that controls the flow of waste water therebetween. Connected over the outlet port on the secondary recovery tank is a second check valve that operates in opposite direction to the first check valve. Attached to the secondary recovery tank is an air control valve that controls the flow of air from the primary recovery tank or the outside air into the secondary recovery tank. A timer or a float valve is connected to the air control valve to selectively control its operation.

Abstract: A nozzle applies fluid (e.g., heated gas) to a solder region of a circuit board component having a set of fluid-delivery edges and a set of fluid-escape edges. The nozzle includes a top member to connect with a fluid source, and a set of fluid-delivery side members coupled to the top member. Each fluid-delivery side member extends from the top member and around a respective fluid-delivery edge of the circuit board component when the circuit board component engages with the nozzle. Each fluid-delivery side member defines (i) at least a portion of a fluid-delivery channel that extends from a vicinity adjacent the top member toward the solder region of the circuit board component when the circuit board component engages with the nozzle, and (ii) a barrier that substantially prevents fluid from escaping from the solder region along the respective fluid-delivery edge for that fluid-delivery side member.

Abstract: An automatic wall cleansing apparatus is provided that includes a work platform, a lift unit, a supporting frame, a rotatable brush assembly, a blower unit, and a control unit. The work platform is moved up to a working position, by presetting the control unit. The work platform is lifted to the topmost portion of the building and downwardly executes the cleansing work with the aid of air supplied by the blower unit and a rubbing operation by the rotatable brush assembly. From the supply of detergent, cleansing, spraying of clean water, to drying by hot air, all of the steps are carried out automatically and successively without the need of manual operation.

Abstract: The present invention 10 discloses a high pressure printing press ink cleaner comprising a vacuum header housing 20 having wheels 22 secured thereon for mobility. A water supply conduit 24 is connected at one end through connection means 26 to the housing 20 and at the other end to an external power washing device 16. The cleaning unit 14 has a head 74 thereon which contains power spray jets 62 whereby fluid spray 68 is ejected onto a surface to be cleaned. The dirty fluid is sucked up by suction ports 72 contained in the vacuum head 74 and returned through hose 64 to a wet vac 18 where it is stored in the tank 19 of the wet vac. An operator handle 28 is shown having a control trigger means 30 thereon which controls the release of the fluid and the amount of fluid to be released.

Abstract: A device is provided for cleaning of elongate flexible hoses. The device has a smooth radiused low friction entry fairlead that allows the soiled hose to be readily pulled along a straight line path through the cleaner. After entry, the surface of the hose passes through a set of pliant wiping flaps that closely engage the full circumference of the hose, wiping dirt and debris from its surface as it enters the active cleaning region. In the cleaning region, multi-stream jets of high pressure water blast and scour the moving hose's surface, and the hose exits through a second set of pliant wiping flaps that wipe any adherent water from the hose surface. The active cleaning region, filled with water spray, is maintained at a negative pressure by means of an associated suction system which also sucks out the dirty water and debris. The pliant wiping flaps act as partial pneumatic seals, allowing maintenance of the negative pressure in the cleaning region.

Abstract: Device with a nozzle beam for producing fluid streams for striking the fibers of a web of goods by streams. The fluid spraying against the underside of the nozzle beam must be captured. For this purpose, a device is used Fat is located to the side of the nozzle beam over its length. A funnel-shaped slot is provided at the edge of the nozzle beam, at whose inner end a suction slot approximately 2 mm high is formed. If a sufficiently low vacuum is connected to the otherwise completely enclosed device, all of the drops from the underside of the nozzle beam can be sucked up safely for the goods to be needled, including a spray fog.

Abstract: An engine decarbonizing system comprises a manifold with one central and four lateral bores. Pressurized air and decarbonizing fluid in separate containers are adapted to be co-mingled and fed to and through the manifold. A tube assembly has an output tube and two parallel input tubes operatively coupled. The output tube is coupled to the central bore and the two parallel input tubes are coupled to the containers for dispensing pressurized decarbonizing fluid. Four short tubes are coupled to the lateral bores and second ends have a rigid cylindrical nozzle selectively positionable within a spark plug for the delivery of a spray of pressurized decarbonizing fluid. Four switches are coupled to the manifold adjacent to the interface between a short tube and a short bore for selectively allowing or precluding the flow of decarbonizing fluid.

Abstract: An apparatus for unwinding/rewinding a suction hose for draining or purging cesspools, septic tanks, sewers or the like which includes, on a truck, a reel with which, in a peripheral region, a radial hose guide is associated, the hose guide including a composite am with guiding elements for the hose, wherein the arm is peripherally articulated to the reel so as to pitch, in an adjustable manner actuated by actuation elements, about an axis which is parallel to a tangent to the reel.

Abstract: An automatic wall cleansing apparatus disclosed herein comprises a working platform, a lift unit, a supporting frame, a rotatable brush assembly, a blower unit, and a control unit. The working platform is moved up to a working position. By presetting with the control unit, the working platform is lifted to the topmost portion of the building and downwardly executing cleansing work with the aid of the wind supplied by the blower unit and rubbing operation by rotatable brush assembly. From supply of detergent, cleansing, spraying of clean water to drying by hot wind, all the steps are carried out automatically and successively without need of manual operation.

Abstract: A method and apparatus for reducing food and grease in a wastewater stream from a food service facility. Vacuum is supplied to a suction hose, which is used to remove food and grease from plates and utensils prior to these being introduced into the water flow. The food and grease is collected in a waste container for separate disposal. The suction hose may be fitted with a scrubber head for breaking up and removing the materials. The vacuum may be supplied by an air pressure operated vacuum transducer, or by an exhaust blower. The invention thus solves the problem of high BOD, FOG and TSS levels in wastewater streams from food service facilities, which generate excessive loads on both on-site septic systems and municipal waste water treatment plants.

Abstract: The device sprays a mist of cleaning fluid onto the record medium—e.g., motion picture film—and wipes it off, preferably with a soft material such as velvet. Then, the film is dried with air, including thin air jets to spread the liquid evenly, and heated, ionized air. The device has a closed housing and air in the housing is evacuated and sent to a still to recover much of the cleaning liquid and prevent its escape into the atmosphere.

Abstract: For depositing fluid dots in an array, e.g., for microscopic analysis, a deposit device, e.g. a pin, cooperating with a fluid source defines a precisely sized drop of fluid of small diameter on a drop carrying surface. Transport mechanism positions the device precisely over the receiving surface and drive mechanism moves the deposit device toward and away from the surface. By repeated action, minute drops of fluid can be deposited precisely in a dense array, preferably under computer control. A mobile-fluid storage device resupplies the deposit device along the array, e.g. in the immediate vicinity of the deposit locations. Mobile annular storage rings are lowered and raised to obtain a supply of fluid, or a mobile multiwell plate is used. Cleaning mechanism is shown, in particular a jet arrangement that directs a jet from a pin or tool axis portal to deeper into the confinement chamber, to scrub along a pin or pin-like structure while inducing an air flow from the working zone to prevent back contamination.

Abstract: A method and a device for cleaning the undersurface of footwear and wheels of shopping trolleys and other transport expedients to minimize the amount of dirt and moisture brought into a building by persons entering the building. The objective of the invention is to provide a device which provides sustained high-performance cleaning, even in adverse weather conditions and with heavy use. To this end the invention uses a mat rotated as an endless loop between guide rollers within a floor opening at an entranceway or elsewhere within a building. In a section running in one direction, the mat acts at least partially as a tread surface and absorbs dirt and moisture, while in a section running back in the opposite direction, which has gathered dirt and moisture from its exposure to persons entering the building, the mat is cleaned and reconditioned by mechanical, hydraulic or pneumatic mechanisms within the floor opening.

Abstract: A line for processing semiconductor wafers into integrated circuits (ICs) is provided with an input-output (I-O) chamber to help purge residual contamination from the wafers before they are transferred into a processing line. After a cassette containing semiconductor wafers is placed in the chamber, it is sealed from the line and from the atmosphere. Then a dry inert gas such as nitrogen is dispersed into the top of the chamber to form a covering blanket around the wafers to displace and sweep away contaminants such as air-borne particles, moisture and organic vapors. While the purge gas is flowing, gasses and residual contamination are exhausted from the bottom of the chamber at a relatively slow rate until an intermediate pressure level is reached at which pressure droplets of liquid from residual moisture and vapor can no longer condense. Then the flow of purge gas is stopped and the pressure within the chamber is relatively quickly reduced to a base operating value (e.g.

Abstract: An apparatus for cleaning a conveyor in tunnel ovens, the apparatus having a support frame able to be positioned in correspondence with a segment of the path of the conveyor, a plurality of nozzles positioned on the frame according to a line substantially transverse to the conveyor in such a way as to face at least a portion of the conveyor and a unit for feeding the nozzles with a washing fluid under pressure. The nozzles are mounted on a bridge able to translate from a first operative position to at least a second operative position according to a direction substantially transverse to the conveyor, in such a way as to cause the nozzles to face a new portions of the conveyor previously not hit by the jet of washing fluid.

Abstract: A ball washing apparatus and method for children's play pools includes a venturi assembly having a high pressure air line which brush, diaphragm and air dry balls passing through. A divider at the air line junction of the venturi assembly prevents clogging and jamming as the balls rapidly exit the ball washer through a ball return conduit. Preferably an ultraviolet light source acts as a germicide treatment for the water and balls contained within the washing chamber.

Abstract: A method for dry cleaning a wafer container such as a SMIF pod that is equipped with a bottom mounting plate covered with contaminating particles. In the method, the wafer containers are mounted in openings of the enclosure such that the bottom mounting plates with the contaminating particles are exposed to an air-tight cavity of the enclosure. A purge gas flow is then directed to the bottom of the plate to dislodge the contaminating particles which are then picked up by a vacuum conduit positioned juxtaposed to the purge gas conduit and connected to a factory vacuum source such that contaminating particles dislodged are immediately removed. The present invention novel method can be carried out without using wet bench cleaning while achieving desirable and efficient cleaning results.

Abstract: Gum is removed by directing a steam jet (11) at an individual piece of gum (2) at a pressure sufficient to penetrate the gum. The steam temperature is sufficient to cause disintegration of the gum by the moistening effect of the steam. The gum disintegrates into particles (15) which can easily be swept up or removed by suction afterwards.

Abstract: A cleaning apparatus for cleaning cylindrical articles includes a container that defines a process chamber. The process chamber is adapted to receive cylindrical articles that have been soiled by dust. The process chamber is substantially closed except for an inserting/removing opening formed in the container. A dust duct is connected to the container so as to communicate with the process chamber. A device is provided for producing a gas-liquid mixture jet within the dust duct so as to induce airflow directed from the process chamber toward the dust duct. Therefore, dust will be drawn into the dust duct and will not scatter to the surrounding environment. The liquid may further wet the dust suspended within the dust duct in order to simplify the process for disposing of the dust removed from the article.

Abstract: The multi functional cleaning module comprises a plurality of air curtain, an eximer ultraviolet light irradiating device, a brush, a high-speed shower device, and an air knife, where they are arranged continually on a plan and the glass substrates are inserted continually into them.

Abstract: The steam cleaning device contains a steam cleaning head with several steam pressure chambers connected to a steam generator, as well as suction regions connected to a vacuum source. The suction regions are constantly supplied with fresh air from a fresh air chamber connected to the outer surroundings of the cleaning head, in order to improve transport of the steam/water/dirt/air mixture to a backward vacuum lock in the steam cleaning head. Suction slits around the periphery of the steam cleaning head ensure completely stripe-free cleaning of, for example, window surfaces. The steam cleaning head can be part of an automatic cleaning machine used for cleaning windows and skyscraper facades.

Abstract: An apparatus cleans, primes and prepares a surface onto which a gasket, adhesive or other bonding agent is to be applied. The apparatus includes a robotic device capable of movement along multiple axes. An end effector is supported by the robotic device (18) for movement along the surface (35) to be cleaned. A felt supply assembly (12) delivers felt (14) under tension to the end effector (20). A cleaning fluid delivery system (34, 34a, 36a) applies cleaning fluid through the end effector directly to the felt for application to the surface to be cleaned. The end effector also includes 42 a squeegee-like elastomer wiping device (51) which scrapes the surface by removing gross contaminants from the surface. An air knife (52) is provided which force-flashes fluid residue.

Abstract: The present invention provides a dynamic-flow system that uses a vacuum to pull an etchant or other processing agent through a nozzle onto the surface of the work object. The processing agent can only communicate with the vacuum and be pulled onto the wafer surface when the nozzle is sealed against the work object. Therefore, the processing agent is dispensed onto the surface of the wafer or other work object under a negative rather than a positive pressure. Accordingly, the dispensation of the processing agent is self-stopping in the event that seal of the nozzle against the work object fails. The present invention also provides a novel nozzle for dispensing a processing agent onto a selected area of a work object. The nozzle of the present invention provides a substantially unidirectional flow of processing agent along the surface of a work object and maximizes the contact time of the processing agent at the surface of the work object.

Abstract: A method and apparatus for processing wafer edges is disclosed. Pressure applied to the wafer at one end of A brush/pad assembly is greater than at the opposite end of the brush/pad assembly. The increased pressure causes wafer rotation to slow or to reverse direction as compared to less pressure applied by the brush/pad assembly. In one embodiment slowed rotation causes a difference in tangential velocity between the roller(s) and the wafer edge/bevel that causes pads in the roller(s) to process the edge/bevel of the wafer. In another embodiment, the opposite direction of rotation causes the wafer to rotate counter to rollers otherwise causing the wafer to rotate. Cleaning surfaces in the rollers clean the edges of the wafer whether rotation is slowed or reversed.

Abstract: A blower assembly for an automatic car wash is provided. The blower assembly includes a housing, an impeller, a fan motor, an oscillation motor and an oscillation linkage assembly. The impeller is rotatively disposed in the housing. The housing includes an egress spout. The fan motor is rigidly connected to the housing. The linkage assembly mechanically relates the oscillation motor to the fan motor and housing and oscillates both. In the preferred embodiment, the motor and housing are rotatably supported on both axial sides of the motor and the motor shaft and motor housing drive substantially the same axis of rotation.

Abstract: An automatic pane cleaning system includes a cleaning head containing at least one cleaning chamber, at least one suction chamber and at least one air supply chamber. Clean water, optionally mixed with cleaning additives, is supplied to the cleaning chamber to clean panes by means of ultrasound, rotating brushes or steam. Water is supplied through a closed air and water circuit which is connected to said chambers and by which the water loss is minimized during the supply of water.

Abstract: A method and apparatus for removing coatings from all surfaces of a deck tiedown on a marine vessel (ships) using an ultra high pressure waterjetting and a vacuum attachment to contain the effluent water and debris. A rotating ultra high pressure nozzle designed to clean all areas of the tiedown by being manipulated in multiple directions and elevations is enclosed in a pressure receiver that seals to the deck surface. All removed coatings, paint, rust, and deposits are removed to a remote vacuum recovery system. This method cleans all areas of the tiedown with no damage to the substrate and provides a superior surface for the application of coatings with no detrimental effects to surrounding deck areas and eliminating foreign object damage to surrounding equipment.

Abstract: A built-in wet/dry vacuum system includes a canister having an inlet port, an air outlet port, and a liquid outlet port. The canister bounds a chamber configured to hold a liquid. A transfer conduit couples with the canister though the inlet port. The first end of the transfer conduit is configured to couple with a vacuum hose and select adapters. A vacuum motor is coupled with the canister so as to produce a relative vacuum within the chamber when the vacuum motor is turned on. A float switch is disposed within the chamber and is electrically coupled with a vacuum motor. The float switch is configured to selectively turn the vacuum motor on and off based on the level of the liquid within the chamber. A check valve is coupled with the liquid outlet port. The check valve precludes the passage of liquid therethrough when the vacuum motor is turned on and enables the discharge of liquid therethrough when the vacuum motor is turned off. A fluid line is coupled with the transfer conduit adjacent to the canister.

Abstract: The present invention provides air intake passage cleaning method and its apparatus for cleaning the air intake passage of intake and exhaust apparatus for conditioning the air in building, ship, aircraft, automobile, train, or other room, to be used in an intake and exhaust apparatus comprising a heat exchanger, and at least one blow-out port for blowing out air conditioning air exchanged in heat by the heat exchanger, comprising supplying means for supplying a cleaning solvent, together with compressed air, to the heat exchanger side from a specific blow-out port through an air intake passage, and moving means for moving cleaning and wiping elements loaded in the air intake passage toward a specific blow-out port side, and hence relates to air intake passage cleaning method and its apparatus capable of securely cleaning and removing dirt deposits in the air intake passage and heat exchanger, and obtaining sanitary environments.

Abstract: A method for washing rod elements used in reactor pressure vessels with a fluid that includes the steps of (a) moving the rod elements from a pressure vessel through an open centered frame; (b) during the performance of step (a), impinging at least one fluid under pressure on the rod elements from at least one outflow orifice on the frame; and (c) simultaneously with the performance of step (b), withdrawing the fluid impinged upon the rod elements during step (b) under suction at at least one suction extraction orifice on the frame at a location peripherally spaced from the outflow orifices.

Abstract: The device sprays a mist of cleaning fluid onto the record medium—e.g., motion picture film—and wipes it off, preferably with a soft material such as velvet. Then, the film is dried with air, including thin air jets to spread the liquid evenly, and heated, ionized air. The device has a closed housing and air in the housing is evacuated and sent to a still to recover much of the cleaning liquid and prevent its escape into the atmosphere.

Abstract: A cleaning device for cleaning a screen plate used in a screen printing is disclosed. The cleaning device comprises a base structure which can be placed just below the screen plate. A press member, such as a cleaning blade or cleaning roller is carried on the base structure. The press member has a contact portion which contacts a lower surface of the screen plate to scrape off any foreign things from the lower surface when the base structure is moved in a direction parallel with a major surface of the screen plate. In some embodiments, a cleaning paper wet with a solvent is intimately put between the contact portion of the press member and the lower surface of the screen plate to promote the cleaning effect.

Abstract: In a web cleaning and destaticizing apparatus, an upper surface of a front edge is shaped into a curve with a large radius of curvature so that a cleaning solution applied onto a surface of a web W can be smoothed. An upper surface of a doctor blade is shaped into a curve with a small radius of curvature so that a great part of the cleaning solution SOL1 smoothed by the upper surface of the front edge can be scraped off into a front slit 24. An upper surface of a back edge 23 is formed so that an undercoat solution can be applied onto the surface of the web just after the great part of the cleaning solution is scraped off by the upper surface of the doctor blade 22. Accordingly, the allowable range of web incident angle can be widened by the front edge, so that not only the cleaning solution can be scraped off by the doctor blade without scattering in the surrounding directions but also static electricity accumulated can be eliminated rapidly and efficiently by the undercoat solution.

Abstract: A machine for cleaning the outer wall of a high-rise building using a pneumatic system or a vacuum system consists of a case divided into three chambers vertically arranged having an opened-anterior side where edges of all chambers having rubber plates or brushes mounted all along their rims. In each upper and lower chamber there is mounted a roller having its surface aligned with an edge of the rubber plates or brushes. The machine is pressed against a wall to be cleaned be either a pneumatic or vacuum mechanism. The machine moves along a wall which cleaning by shifting a cable tied at the top of a case. In a middle chamber, there is a drum-brush whose hair sticks out over the level of the edge of the rubber plate or brushes. There is also tubing to eject water and/or detergent solution to the drum-brush, and where the drum-brush is motor-driven in cleaning the wall.

Abstract: A double side cleaning apparatus includes a pair of roll-like brushes and at least one cleaning brush. The roll-like brushes are driven to rotate in opposite directions, and a semiconductor wafer is arranged between them in a non-contact manner. The cleaning brush is arranged near the pair of roll-like brushes. While the semiconductor wafer is arranged between the pair of roll-like brushes and its upper and lower surfaces are being cleaned, the cleaning brush brushes the side surface of the semiconductor wafer. A cleaning agent is supplied from the pair of roll-like brushes to the semiconductor wafer to clean it. Since the upper and lower surfaces of the semiconductor wafer are cleaned in a non-contact manner, dust can be removed efficiently (within a short period of time and a small space).

Abstract: A movable sediment and sludge removal and cleaning system which can be inserted into the access pipe of a storage tank, the apparatus including a chassis or platform, a pump connected to the chassis, two track assemblies connected to the chassis movable relative to the chassis in the same plane as the chassis, movable tracks connected to each track assembly to drive the apparatus over sediment and sludge, and a motor for driving the track assemblies and pump.

Abstract: A shoe cleaning device is formed of a housing having an opening to put a shoe to be cleaned, and a low pressure chamber communicating with the opening; an air sucking and compressing device disposed in the housing and communicating with the low pressure chamber for sucking air; a heating chamber disposed in the housing and communicating with an outlet of the air sucking and compressing device; and a nozzle portion disposed outside the housing and having a flow path communicating with the heating chamber to eject compressed air passing through the air sucking and compression device. A liquid valve is attached to the flow path to provide moisture to air passing through the flow path, and a controller connected to the air sucking and compressing device, the heater and the liquid valve for controlling the same. Materials attached to the shoe can be blown out by compressed air ejected from the nozzle and collected through the opening.

Abstract: A method and apparatus for cleaning the forming fabric used on a papermaking machine includes a chamber surrounding a span of the forming fabric on either side thereof. A source of sub-atmospheric air pressure is connected to the chamber for removing water mist surrounding the fabric. Mounted within the chamber is a pair of high pressure-low volume water impingement showers in substantially opposed array for directing jets of relatively high pressure water against the forming fabric as the forming fabric passes through the chamber via slots on either end thereof. In a preferred embodiment, downstream of the pair of high pressure needle showers is a second shower apparatus comprising a relatively low pressure-high volume flooding water shower to direct a water spray against the inner side of the looped forming fabric to flood the interstices of the forming fabric with water to wash out pulp fibers therefrom.

Abstract: A system for treating an external surface of a building, has (a) at least one treatment unit configured to treat the external surface of the building with a pressurized fluid; (b) at least one suspension system for suspending the treatment unit adjacent to the external surface; (c) at least one suction unit associated with the treatment unit, being activated by the pressurized fluid to generate suction at a suction port; and (d) at least one suction head in fluid connection with a suction port to clamp against the external surface.

Abstract: The method can be performed by receiving at least one sheet and guiding the sheet through an apparatus for cleaning sheet providing tension to the sheet for processing; and processing both planar surfaces of the at least one tensioned sheet.