Abstract: A system for cleaning a thru hole on a substantially planar electrical board. The electrical board has two major surfaces, upper and lower. A first gas and liquid transmission device is connected to the board to introduce etching gas and liquid into the thru hole. The device is adapted to surround the thru hole and seal the periphery thereof on one surface of the board. A second gas and liquid transmission device is connected to the board to remove the etching gas and liquid from the thru hole. This second device is adapted to surround the thru hole and seal the periphery thereof on the other surface of the board. A vacuum system is used to force gas and liquid to move through the thru hole from the first transmission device to the second transmission device, thereby etching and/or cleaning material from the thru hole.

Abstract: In a method of cleaning the channels of an endoscope, one end of a suction channel and a nozzle, both positioned at the distal end of an insertion section of the endoscope, are connected. The open ends of an air/liquid supply cylinder and a suction valve cylinder, both provided within a control section of the endoscope, are closed. The ends of an air supply channel and a liquid supply channel, which open to a connector mounted on the distal end of a light guide cable, are connected to a liquid supply tube which is in contact with liquid. The other end of the suction channel, which opens to the connector, is connected to a suction pump by a suction tube. The pump is operated and sucks the liquid from the other end of the suction channel through the air supply channel, liquid supply channel, suction channel and valve cylinders, thereby cleaning the interior of the channels and valve cylinders with the liquid.

Abstract: In a method of cleaning an endoscope, a stop having a communication path is mounted on the open ends of an air/liquid supply valve cylinder and a suction valve cylinder of the endoscope so that liquid may flow between the valve cylinders through the communication path. One end of a suction channel, which opens to the distal end of an insertion section of the endoscope, is connected to a liquid tank through a liquid supply tube. An air supply pump is connected to the tank. The pump is operated in this state and supplies the liquid held in the tank to the one end of the suction channel. The liquid supplied to the one end of the suction channel is discharged from a nozzle at the distal end of the insertion section and the other ends of the suction channel, an air supply channel and a liquid supply channel, which open to a connector mounted on a light guide of the endoscope, through the three channels and the valve cylinders, thereby cleaning the interior of these channels and valve cylinders.

Abstract: In a method of cleaning an endoscope, the open end of a suction valve cylinder, arranged within a control section of the endoscope, is closed by a stop. A cap is mounted on the distal end of an insertion section so that liquid may flow between a nozzle and a suction opening which are arranged at the distal end of the insertion section. The nozzle communicates with an air supply channel and a liquid supply channel, and the suction opening communicates with a suction channel. A stop is mounted on the open end of an air/liquid supply valve cylinder arranged in the control section, and a syringe is connected to the stop. The piston of the syringe is pushed, thus supplying liquid in the cylinder of the syringe into the cylinder and discharging the liquid from the other ends of the three channels through the channels and the valve cylinders, thereby cleaning the interiors of these channels and valve cylinders with the liquid.

Abstract: Fluid jet apparatus and method for cleaning material from the inside of a tubular conduit utilizing a cleaning head that lies adjacent to one wall of the conduit and includes at least two fluid jet forming means for directing a plurality of high pressure fluid cutting jets in a forward direction and at an acute angle relative to the axis of the head and the conduit so that they are directed toward the opposite wall of the conduit. The cleaning head is rotated around and remains adjacent to the wall of the conduit and is advanced into the conduit as the jets cut away the material whereby the fluid jets create an asymmetric cutting pattern on the surface of the material and the counter thrust of the fluid jets keeps the cleaning head offset relative to the axis of the conduit and against the wall of the conduit to provide passage for removal of the cut material and spent fluid away from the cutting area and out the end of conduit.

Abstract: The sludge collecting in a floating roof type oil storage tank is disposed of by inserting a compressed liquid spurting device in a straightened state into the tank through an orifice in the floating roof, feeding compressed liquid to the spurting device, causing the spurting nozzle of the device to be swung about the device proper and, at the same time, releasing the compressed liquid against the sludge inside the tank thereby causing the sludge to be disintegrated and fludized by the force of the compressed liquid, and allowing the fludized sludge to be drawn into a reservoir whose interior is under negative pressure.

Abstract: A method and installation for cleaning a squeegee device. The installation includes a housing with a door through which the squeegee device can be introduced and mounted in a tiltable supporting element. After the closing of the door the squeegee device is internally and externally flushed and rinsed by means of a number of stationary and traveling spraying nozzles through which a cleaning liquid is sprayed upon the squeegee device.

Abstract: A method of and an apparatus for cleaning the interiors of risers of coking chambers of a coke oven wherein a head provided with scrapers, hydraulic cleaning means or oxygen supply for burning off deposits, is introduced laterally into the coking furnace below the riser and caused to elevate through the riser. Thereafter the head is lowered and the apparatus withdrawn laterally through the coking chamber.

Abstract: This invention is a method and apparatus for cleaning stoves, furnaces, fireplaces and the like, which is characterized by a vacuum system having a specially designed pickup member insertable into a stove, furnace, fireplace or the like, in such manner that, when being inserted or removed, ashes and the like, will not escape from the stove, furnace, fireplace or the like, and also which has sufficient protective characteristics that it will not accept large burning objects and the like, and wherein means are provided to drop material evacuated from the stove, furnace, fireplace or the like, into the water or other suitable bath for quenching as required. The method and apparatus incorporate the providing of a specially designed connection opening between the interior and exterior of the stove or the like, which opening and its elements are cooperable with a specially designed vacuum pickup attachment, together with an exterior mounted quenching medium to receive the material evacuated.

Abstract: A process for cleaning tank interiors uses a rotary element and a cleanser discharge nozzle and monitors the completion of each full revolution of the rotary element. The cleanser quantity made available per unit of time is monitored and/or controlled or regulated. In the process, the time of each revolution of the rotary element is monitored in such a fashion that said time is represented by the spacing in time of two voltage pulses, with the last voltage pulse serving as a reset pulse for the monitoring time. The monitoring time represents the requirement of a sufficient cleaning effect and exceeds by an adjustable percentage the set time of revolution for a rotary element. In the event each rotary element revolution is completed within the monitoring time, the monitoring begins anew. In the event that the time of revolution of the rotary element exceeds the monitoring time, an electrical, optical, or acoustical malfunction or control signal is given.

Abstract: An implement and method for cleaning sanitary, industrial or the like drains, said implement having a carriage hub with radially extending cutting means and a correspondingly radially extending plunger means, together with means for wetting the debris in the drain in advance of the cutting means, said plunger means comprising a plurality of fan shaped elements pivoted between said radially extending cutting means and which are folded backwardly when the implement is pulled forwards through a drain in a direction parallel to the axis of the hub and which are expanded into a plate when the implement is pulled backwards in an opposite direction. Depending on the configuration of the fan shaped elements, the implement is capable of cleaning drains of various configurations including box culverts and tubular pipes.

Abstract: The invention relates to a method for internal washing or cleaning and rinsing or drying of tubular materials.Particularly the invention relates to a method for washing or cleaning of tubular materials when a washing or a cleaning medium is brought to circulate in a washing or a cleaning system. Furthermore a purification of the washing or cleaning medium and a rinsing or drying medium is effected in a tank for the washing or cleaning medium.

Abstract: An implement for cleaning tubular drains and a method for cleaning therewith, said implement having a carriage assembly with radially extending cutting means at a forward end and a correspondingly radially extending plunger means in spaced relationship therewith at a rearward end, together with means for wetting the debris in the drain in advance of the forward passage of the plunger means, said plunger means comprising a plurality of fan shaped elements which are folded backwardly into a cone when the implement is pulled forward and which are expanded into a disc when the implement is pulled backwards.

Abstract: Method for cleaning generally cylindrical articles of irregular configuration and, particularly, for cleaning straps of the type used to hold magnetic tape and supplied by manufacturers for use with magnetic tapes. The method is performed by an apparatus which comprises exterior and interior nozzles resiliently mounted along the inside and outside of the cylinder, or ring, and form means to blow and suck dirt from the article being cleaned.

Abstract: This method and apparatus comprises displacing the product to be removed from a tank by forming and permanently maintaining at the upper part of the tank, above the product, an aqueous phase filling progressively the tank as the product is removed through a drain pipe. Jets of hot water are introduced into this aqueous phase and a secondary injection is effected in said aqueous phase above the level of these jets.

Abstract: A washing device for a centrifugal analyzer testing disk having a multiplicity of test cells each of which has a specimen and a reactant receiving hole communicating with the cell. The washing device has a washer body member with a multiplicity of fingers each receivable within the speciman receiving hole of each cell. Each finger has a bore communicating with a plenum within the body member. The body member communicates with tubing to a low pressure source such as a T-connector which can be connected to a faucet at one end to create a suction within the body member and draw cleaning solution through the reactant receiving hole of the test cell and out the specimen receiving hole when the disk is immersed in a cleaning solution.

Abstract: An agitator mounted in a reactor is cleaned while being rotated by introducing an unconfined jet stream of pressurized liquid from a nozzle through an opening in the reactor wall into contact with the agitator and oscillating the nozzle so that the liquid jet oscillates in a plane passing substantially through the axis of the reactor.

Abstract: A spray head with nozzles is carried on a lance to spray high pressure fluid, such as water, to clean the interior of tubes, such as those in heat exchangers. The fluid, in addition to cleaning the interior of the tube, is used to both rotate the lance and move the lance into and out of the tube.

Abstract: A nozzle useful for cleaning deposits from the interior wall of a pipe, the nozzle including a body having a hose connection for accepting a stream of high pressure fluid and having at least three skids to hold the body away from the interior pipe surface, and a turbine connected to the body through a bearing, the body including jets to discharge high pressure fluid in a direction to propel the nozzle through the pipe being cleaned and the turbine having jets positioned to drive the turbine to rotate and to impinge against the interior wall of the pipe.

Abstract: A composition and method for cleaning tanks for drinking water, particularly for removing deposits consisting mainly of an agglomerate of algae, microorganisms and ochre sediments. The composition is an aqueous solution comprising about 3 to 6% of ascobic acid, 2 to 3% of formic acid, 7 to 10% of phosphoric acid, 1 to 3% of citric acid, 13 to 15% of hydrochloric acid and 10 to 15% of an aqueous isopropyl alcohol (all % by weight). The method involves spraying said aqueous solution under pressure onto the deposits.

Abstract: A method and apparatus for washing a mixing container or tube includes a network of piping mounted within the tub. The piping is interconnected to a pumping system operable for delivering a washing fluid, such as a liquid, to the piping. The piping includes spray outlets which may be selectively directed toward walls and internal components of the tub for Washing residue therefrom. The washing liquid may be retained within the tub as a portion of the liquid required for a subsequent mixing operation.

Abstract: The specification discloses a liquid storage tank of the silo-type having spray cleaning apparatus for cleaning internal surfaces located in the lower portion of the tank and also cleanable venting and overflow conduits associated with the cleaning apparatus. The specification also describes a method for cleaning internal surfaces of the tank and its various conduits using spraying apparatus positioned at or near the bottom of the tank.

Abstract: A method is provided for washing the inside of an organic digester of the type having a rotatable roof member. The method includes supporting the roof member, with pressurized gas excluding oxygen, rotating the roof member, spraying water on the interior walls of the digester, and observing the washing process.

Abstract: Cooling water for cooling coke in a coking drum is charged into the interior of the coking drum from a plurality of orifices located on the lateral surfaces of the coking drum so as to uniformly distribute the cooling effect provided by the cooling water.

Abstract: Vertically oriented cathode grids or cathode plates, adjacently situated at closely spaced intervals in a cathode box, are cleaned by spraying jets of liquid onto the cathode surfaces at an angle of about 10.degree.-50.degree. and at a pressure of about 60 to 140 atmospheres, while moving the liquid jets uniformly along the cathode surfaces. A device for performing this process comprises a bar shaped spraying means comprising spraying nozzles which are connected to pressure resistent feeding means for the liquid.

Abstract: The method of flue and fireplace cleaning includes the preparatory steps, if needed, of cleaning out ashes from a pit or sump, followed by connecting a vacuum hose to a low point in each system and spraying an industrial type detergent steam spray through a steam hose from the top of the chimney downward, loosening all sooty deposits in the form of a wet slurry which is collected and removed through the vacuum hose. A fireplace is cleaned by a similar steam spray and vacuum operation after sealing the fireplace opening by means of a tight-fitting shield having openings for the steam and vacuum conduits. In flue cleaning the vacuum hose is connected by means of an adaptor having an inwardly projecting ledge which intercepts falling debris and directs it into the hose, and in industrial installations the vacuum removal system may be replaced by a removable receptacle occupying the bottom of a stack in a position to receive the debris from periodic steam cleaning operations.

Abstract: A two-cycle method for flushing an automobile cooling system and apparatus associated therewith. The method comprises cutting a hose between a water pump and a heater of a standard automobile cooling system. A pressurized air and water mixture is then introduced into the heater end of the cut hose, and after circulating through the cooling system, it exits through an opening in the top of a radiator which is normally sealed by a radiator cap. When this exiting water becomes clear, the second cycle is begun. The air and water mixture is introduced into the radiator opening and it circulates through the system in the opposite direction eventually exiting from the heater end of the cut hose. The apparatus of this invention includes a flow-through radiator cap which replaces the standard radiator cap, a plug which seals the water pump end of the cut hose and an "X" connector which by means of a pair of diverter valves directs the flow of the air and water into either the cut hose or the radiator opening.

Abstract: Apparatus for cleaning pipe ends having a closed system, for recycling cleaning fluid by removing contaminants, which includes independently positionable pin end and box end wash heads each of which can be used alone or simultaneously with the other; each wash head providing a high pressure spray of cleaning fluid impinging on the exposed threads of the pipe end being washed within a sealed wash chamber formed by the wash head.

Abstract: The tendency of foreign matter to clog the jets of a dyeing machine is lessened by recirculating the dye and filtering same on each recirculation. To eliminate periodic clogging of the dye jets they are periodically washed by directing a stream of liquid into the dye jet orifices under sufficient pressure to counteract the dye liquor jet action to dislodge and remove contaminants from said orifices.

Abstract: Method and apparatus for the in situ, internal cleaning of a hollow, variable diameter, air and dirt evacuation duct which is coupled to a vacuum creating system. The apparatus comprises a fluid emitting member receivable in the duct for dislodging dirt and scale which might accumulate on the inside wall of the duct. Mechanism is provided for drawing the fluid emitting member through the duct including a line, coupled to the fluid emitting member, passing from the inlet to the outlet of the duct. An expansible and contractible member is received by the duct and is responsive to a differential pressure being created by the vacuum creating system to expand outwardly into intimate engagement with the internal wall of the duct and to move in a downstream direction whereby the line and fluid emitting member are moved through the duct.

Abstract: Apparatus and method for cleaning the heat exchanging surfaces of the heat transfer plates of rotary regenerative heat exchangers comprising low to medium pressure gas and/or steam operated nozzles of the injection type having injection tubes for moving by suction ambient heat exchanging gas or air into the interspaces between the heat transfer plates. The nozzles may be designed as supersonic nozzles, especially Laval nozzles.

Abstract: A method and system for carrying out the method, relating to mixing of solutions, wherein the base liquid in a tank is circulated through an endless circuit while the chemical is gradually introduced into the circulating flow base liquid to achieve thorough mixing. A chemical is withdrawn under valve control into a measuring receptacle prior to mixing same with the base liquid. Provision is included for rinsing the chemical source container, the resulting rinse solution being automatically introduced into the tank, leaving the source container in condition to meet legal requirements for disposal. To simplify disposal of rinsed containers and discourage re-use thereof, a feature of the method and system involves means creating a differential pressure between the outside and inside of the containers for collapsing the containers. A novel multiple valve assembly enables all features to be embodied in a simplified and condensed system.

Abstract: A cleaner for ascension pipes is mounted onto a carriage that is movable on top of a coke oven battery alongside ascension pipes of coke oven chambers in the battery. The cleaner includes a flexible member, anchored at one end to the carriage, and carrying, at the other end, a nozzle block and nozzles. The flexible member is supported by rotatable members, pivotally mounted to the carriage, with one rotatable member being power driven. Means is provided for pivoting the arm to which the powered rotatable member is mounted.The flexible member supports a flexible fluid-carrying hose that connects to the nozzle block and that carries fluid to the nozzles mounted therein. By actuating the power driven rotatable member, the nozzle block and nozzles are reciprocable in the ascension pipes and fluid carried in the hose washes encrusted material from the inner surface of the ascension pipes.

Abstract: The interior of the tank of a tank truck or a tank wagon, is cleaned using a selectively removable sprayhead and the built-in delivery pump of the tank vehicle. A removable sprayhead is inserted into the interior of the tank through a manhole and connected, via the delivery pump, to an external storage source of a solvent or cleaning solution. The solvent is, for example, a mixture including a chlorinated aliphatic compound and an aromatic compound, both compounds having a freezing point below 60.degree. C. The solvent is then pumped into the tank, and the hoses normally carried with the tank truck are connected so that the delivery pump can be used to recirculate the solvent through the tank. The solvent is recirculated until the tank is clean at which time it is pumped back into its original storage tank so that it can be reused.

Abstract: A bottle rinser having a linear path for carried bottles has closely spaced bottle carriers on a lug chain, the carriers receiving the bottles in upright position and being pivoted in a plane perpendicular to the path of chain movement to invert the bottles and carry them over rinse means, then slightly tip the bottles from fully inverted position to aid in draining, and finally being pivoted to restore the bottles to upright position for unloading. The carriers are of stamped and formed construction with an elastomer retainer for simple operation and allowing good bottle exposure for external rinse. Guide rods positioned near the lug chain control carrier pivoting.

Abstract: Method and apparatus for injecting foam into a pipeline. Foam is produced and delivered under pressure to the inlet of a flexible foam-conducting tube. An inflatable plug slidably encircles the tube, so that the tube can be adjusted to extend any desired distance beyond the plug. The plug can be enlarged by inflation to bear against the wall of the pipe and also against the wall of the tube, so as to prevent the foam from flowing back beyond the plug.

Abstract: A heated fluid is used as a thermal herbicide for scalding and killing roots growing within sewer lines. The process includes the steps of heating a fluid, isolating a length of a sewer line, and then filling the isolated length of sewer line with the heated fluid for a lethal period of time required for the heated fluid to act as a thermal herbicide for killing the roots within the length of sewer line. When treating an adjacent length of the sewer line, the preheated fluid is removed from the preceeding section, reheated, and then inserted into the adjacent isolated length of the sewer line.

Abstract: In the marking of metal, for example, steel billets, by spraying aluminum through a stencil, the sprayed metal tends to build up on the stencil and render it inoperative. To reduce the metal build-up, a release compound is applied to the stencil surface and the surface is cleaned periodically during use. The release compound can be sprayed-on and cleaning can be effected by a rotary brush, both movable with the metal spray nozzle.

Abstract: A device for washing a can comprising a support for supporting the can on one of its lateral sides for sliding movement from a prepunch position to a punch position. A knife is positioned adjacent the support and has a cutting edge presented toward the bottom of the can so that the knife will destructively pierce the bottom of the can whenever the can is manually forced against the knife. The knife is shaped to provide a channel for liquid contents of the can to drain therefrom whenever the can is pierced by the knife. A spray nozzle is mounted with respect to the knife so as to protrude within the interior of the can whenever the knife pierces the can. A timing device causes the spray to spray the interior of the can throughout a 30-second cycle.

Abstract: Pipeline tool for closing an open end of a pipeline and which is suitable for use with a pipeline clearing sphere for clearing a pipeline has a tubular member for holding one or two spheres side by side and an aperture in the wall of the tubular member to release gas trapped therein and pipes for supplying compressed air to launch the spheres.

Abstract: A device for cleaning leaves and debris from swimming pools comprising a reticulated bag having an open mouth and closed end. The mouth is connected to the nozzle of a high pressure water hose, which in turn is connected to an automatic swimming pool cleaner of the type that floats and propels itself about the pool by means of a high pressure water supply. A flotation collar is connected to the bag so that it will float semi-submerged, a portion of the mouth being above the water to trap floating leaves and debris. The flotation collar is detachable so that the hose and bag will sink for cleaning the bottom of the pool. The hose is sufficiently flexible and weighted so that the bag can tip upward while on bottom, with the mouth facing the bottom and the hose on the forward side of the mouth. The rearward side of the mouth scrapes the bottom, aiding in trapping leaves from the bottom as the swimming pool cleaner drags the hose and bag about the pool.

Abstract: A system for cleansing spinning turbines of a spinning machine which includes driving a cleansing device having a telescoping tube assembly provided with a rotary cleansing brush at one end thereof from spinning turbine to spinning turbine located at respective spinning stations of the spinning machine, inserting the one end of the telescoping tube assembly with the rotary cleansing brush provided thereat into the respective spinning turbine, and connecting the other end of the telescoping tube assembly to a source of compressed air.

Abstract: Method and apparatus for injecting foam into a pipeline. Foam is produced and delivered under pressure to the inlet of a flexible foam-conducting tube. An inflatable plug slidably encircles the tube, so that the tube can be adjusted to extend any desired distance beyond the plug. The plug can be enlarged by inflation to bear against the wall of the pipe and also against the wall of the tube, so as to prevent the foam from flowing back beyond the plug.

Abstract: A method for removing slag cakes from synthesizing gas reactors. The seal at the bottom of the reactor is removed, an orifice is melted through the partially solidified slag cake by means of the flame of an oxygen core lance, the liquid slag is drained and the residual parts of the slag cake are liquified by means of an oxygen excess powered gas flame and allowed to drain. When the seal at the bottom of the reactor is in the form of a flat frustum of a cone and made of refractory material filled into a fixed refractory ring the method is facilitated.

Abstract: A method of cutting using a high pressure jet of water in which the jet is maintained in a region of sub-atmospheric pressure, preferably up to 70 cms Hg. Operation at sub-atmospheric pressure significantly enhances the cutting power of a high pressure water jet.

Abstract: A method of cleaning and replenishing vehicle hydraulic brake systems is provided which includes opening all of the bleeder screws at the outlet end of the brake system and allowing the old brake fluid to flow from the brake system. Liquid solvent dichlorodifluromethane is then injected into the brake system under pressure at the master cylinder and allowed to flow through the system and out the bleeder screws. As the solvent enters the brake system, it wil mix with any remaining brake fluid and water in the system and, upon vaporization, will remove the remaining brake fluid and water from the system. When the solvent is observed flowing out of the bleeder screws, the solvent is shut off at the master cylinder and the bleeder screws are closed. A vacuum is then applied to the brake system at the master cylinder to vaporize and remove any solvent trapped in the system and to remove all air from the system.

Abstract: A cleaning apparatus, having a motor, a rotatable scouring head, an inflatable collar, a frame fixed to the motor and collar, a swivel coupling on the frame, and a conduit for supplying fluid under pressure to the inflatable collar through the swivel coupling, is introduced into a pipe to be cleaned. The collar is inflated to fill the pipe cross-section. Fluid is then supplied under pressure into the pipe to propel the apparatus through the pipe and to actuate the motor thereby rotating the scouring head which scours the inner wall of the pipe.

Abstract: A restroom is automatically cleaned by moving a vertically disposed spray boom in a manner so as to generally track the interior periphery of the restroom enclosure to spray both the inner sidewall of the enclosure and the fixtures mounted therewithin with cleansing fluid, the fluid then being drained from the enclosure, after which any accumulated vapors are exhausted. Heated drying air is then passed through the enclosure to complete the cleaning cycle.

Abstract: A self-cleaning water table suitable for use with a burning machine is preferably constructed above-the-floor and includes at least one sloped bottom member having at least one drain channel at the lowermost portion thereof. A retractable seal is provided for selectively opening and closing the top of the drain channel to permit flushing of the channel without interrupting the burning operation. The method of cleaning the water table includes control of the opening, closing, and flushing of the drain channel.