With treating fluid motion

A destainer for electrophoresis slab gels. The slab gels are placed in flexible mesh, and rolled into cylindrical shapes and inserted into slab holding tubes. The slab holding tubes are placed in the flow path of a washing liquid which flows past the slab gels and then through a return flow path containing...     

Mud, slime, precipitated particles and other foreign matter are removed from the surface of a semipermeable membrane used in a membrane process system by flushing, preferably with the membrane in place in its cartridge or container, with water of purity greater than 1 megohm resistivity.

A process and apparatus for hydrometallurgical leaching of unseparated, crushed mineral ores using a vessel having liquid stream forming nozzles in the lower portion thereof which operate to direct a stream of leaching liquid into solids in the lower portion of the vessel and to create a highly agitated...     

Granular hard surface cleaning compositions containing low levels of certain water-soluble or dispersible polymeric materials. Incorporation of nonionizing polymers such as polyvinyl alcohol, and polyvinyl pyrrolidone into hard surface cleaning compositions unexpectedly provides improved soil removal...     

An arrangement mountable on the rim of a bidet receptacle or a toilet for providing bidet applications and hygienic cleansing in conjunction with the use of the toilet. Brackets are fastened to the rim of the toilet and carry a pivoted arm on which are mounted a water spray head and a dry air head. These...     

A method for treating cup-shaped workpieces in which the workpieces are positioned within a shape-conforming chamber formed with an outlet port in the base thereof and a conforming nozzle is positioned within the interior of the workpiece in close clearance-spaced relationship. The nozzle is provided...     

Stable, essentially non-toxic, clear cleaning solutions for a variety of metals, especially stainless steel, are disclosed characterized by exhibiting a combination of solvent actions to dissolve both water-soluble and water-insoluble dirt accumulations and leave the metal surfaces in a bright, polished...     

A scraper nozzle which provides a high pressure, uniform sheet of water. The nozzle is preferably used in the upstream portion of the prewash zone of a warewasher. Wares, such as dishes, are contacted by the sheet of water and the materials on the dishes are scraped off. The nozzle comprises a planar...     

Apparatus and method for removing tarry deposits from the sealing surface of coke oven doors. At least the lowermost portion of the sealing surface is cleaned by reciprocating, fan-shaped, high pressure water jets, directed so as to undercut the tarry deposit. Removal of the deposits from the side portions...     

A fluid consisting of either a liquid or a mixture of a liquid and a gas is intimately contacted with solid particles by introducing the fluid into a contacting vessel to form a fluidized layer of the solid particles. A bed of porous packing is also placed in the contacting vessel and the upper end of...     

An elongated, hollow, cylindrical body is provided with an end wall at one end through which a liquid inlet opens and the other end of the body is open. The inside diameter of the body is of a size to snugly and slidably receive a paint roller therein and the length of the interior of the body is greater...     

A method of cleaning a membrane such as an ultrafilter which has been used in the treatment of a cataphoretic paint containing lead is disclosed. The method involves treating the membrane with an aqueous solution of an acid which forms a water-soluble lead salt and a water-soluble organic solvent.

A strip is continuously passed through a molten salt bath in a main tank having a central longitudinal baffle providing passageways at each end thereof. A sink guide roll is provided for the strip at the exit half of the tank. A heating tank is located along one longitudinal side of the main tank at...     

A method of cleaning a membrane such as an ultrafilter which has been used in the treatment of a cataphoretic paint is disclosed. The method involves treating the membrane with an aqueous solution of an acid, a fatty amine and a water-soluble organic solvent.

Apparatus comprising a continuous mixer adapted to receive dry and wet ingredients and a gas to provide a homogeneous output mix, a gamma ray density detector positioned to sense the density of the output mix from the mixer, valve means for controlling the flow of gas into the mixer, and servo means...     

Soils and bacteria are removed from a hard floor surface by providing two resiliently flexible, transversely parallel strips, applying suction to the space between the strips so that their lower edge portions engage the floor surface, bodily displacing the strips longitudinally back and forth, while...     

A device for washing machine parts, e.g. balls or rolls for roller bearings, having finely finished spherical or cylindrical outer surfaces, in connection with the manufacture thereof. The machine parts are fed one after the other through a washing chamber being axially symmetrical to the feed direction,...     

An improvement in an on-site foam generating apparatus which includes storage tanks for supplying the foam-forming reactants, a mixing chamber, and means for conveying the reactants through the mixing chamber. The improvement comprises means for cleaning the mixing chamber including a solvent storage...     

A method of removing a label adhesively bonded to the surface of a hollow thermoplastic article disposed in a liquid which comprises effecting vigorous relative movement between the article surface and the liquid.

A descaling slurry is applied to a surface of an elongated metal strip from a nozzle array while the strip is moving in the direction of its length. The nozzle array is positioned in spaced relation to the strip surface and extends transversely to the strip at an acute angle so that the individual slurry...     

A surface treating composition especially suited for cleaning and treating stainless steel comprising an aqueous emulsion of white mineral oil. An aerosol composition is also provided by the addition of a suitable amount of liquified normally gaseous propellant material.

A cavitation nozzle assembly is described for discharging a high velocity jet of liquid with cavitation bubbles therein. The nozzle assembly includes a supply chamber having an upstream portion divergent in a downstream direction, a downstream portion convergent in the downstream direction, and a central...     

A hydrodynamic skylight apparatus employed for use on building roof structures, so as to transmit in a controlled manner solar light and heat into the interior areas. The apparatus comprises a peripheral frame structure to support one or more transparent or translucent panels. A central support strut...     

A web, for instance magnetic tape, is cleaned by pulling it across a plurality of scraper bars. Simultaneously, a cleaning fluid such as air is moved from below the web, upwardly and laterally across its downwardly facing front surface, while cleaning fluid is also moved from above said web, laterally...     

A heated bath of cleaning liquid is contained in an open top trough into which the bristles of a long handled car washing brush, having a nozzle enclosed within the bristles, are immersed. The edges along the top opening of the trough are provided with flow deflectors that are arranged to redirect liquid...     

A separator for cleaning material from particles such as oil from sand. A container is provided having upper wall structure with an opening formed therethrough leading to an annular zone extending radially outward from the opening. A cone shaped baffle has an upper open end coupled to the opening and...     

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...     

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...     

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...     

Bituminous and other coatings are removed from a pipe surface by directing powerful water jets, e.g. under a pressure of 300-600 bars, and preferably under an acute angle of incidence, against such pipe surface. The apparatus has one or more nozzles, each provided with water supply means, in a frame...     

In a method of cleaning an endoscope, a stop is mounted on the open end of an air/liquid supply valve cylinder thereby closing the open end. A liquid tank is connected through a liquid supply tube to a first air supply port which opens to a connector of the endoscope and communicates with one end of...     

In a method of cleaning an endoscope, the open ends of an air/liquid supply valve cylinder, a suction valve cylinder, and a gas supply valve cylinder which are arranged in a control section of the endoscope are closed by stops. An air supply channel, a liquid supply channel, a suction channel, and a...     

In a method of cleaning an endoscope, the open ends of an air/liquid supply valve cylinder and a suction valve cylinder, both provided within a control section of the endoscope, are closed by stops. The ends of an air supply channel, a liquid supply channel and a suction channel, which open to a connector...     

A paint roller cleaning device comprising an annular sleeve adapted to have an interference fit with a pad on a roller of a paint roller, liquid passage means within the sleeve, liquid entry means to said liquid passage means and liquid outlet means communicating with the liquid passage means on the...     

A rotary spray nozzle directional tank cleaning machine has a first, stationary housing, a second housing mounted to the first housing for rotation about a first, typically vertical axis, and a third housing mounted to the second housing for rotation about a second axis. The second axis is at a first,...     

This invention relates to a novel alkaline detergent and the use thereof in cleaning a variety of substrates either alone or with prior treatment with acidic detergent solutions. Specifically, the invention relates to a unique combination of surfactants with detergents and various builder salts and the...     

Method for cleaning material from the outer edge of an object by applying a solvent for the material to a flat surface adjacent the edge and moving the solvent onto the edge by centrifugal force.

Solutions of choline base, (2-hydroxyethyl)trimethylammonium hydroxide, in water and/or lower alkanols may be stabilized by the addition of a stabilizing concentration of formaldehyde or paraformaldehyde. The stabilized solutions may be used as cleaning solutions, etchants for semiconductors and metal...     

A halide based process for the removal of surface oxidation and corrosion contamination from metallic articles especially cracked superalloy turbine components, which utilizes a pulsed pressure cycle. Preferably the cycle is established by alternate evacuation and replenishment. A cycle operating at...     

A treatment method for plate-shaped substrate capable of uniformly performing the treating operation, performing a large amount of treatment, and facilitating the automation of the work independently of the surface nature of the substrate such as base plates of Si wafer for integrated circuit manufacturing...     

A device for washing automobiles, vans, and other vehicles is shown which comprises a movable spray bar with high velocity spray nozzles mounted thereon, as well as associated supporting structure, and motion inducing means. In the washing process, the lateral profile of the vehicle is tracked by an...     

The system for cleansing exterior surfaces of vehicles has horizontal arrays of plural zero degree solid stream nozzles in spaced relationship along the linear length of the arrays. The zero degree nozzles are at an angular orientation with respect to the linear length of each array such that the solid...     

Encrusted filter surfaces that have been used for filtering wet process phosphoric acid slurries are effectively cleaned, e.g., of crystalline deposits, by washing same with a solution of fluosilic acid.

A process for cleaning the sterilizing containers in which the interior surfaces of a container are subjected to a high power spray of ozonated wiater so as to remove contaminants from the surface and kill yeasts, molds and bacteria which may be beneath the surface. In the case of wooden vessels the...     

Cleaning formulations suitable for cleaning equipment which circulates food products, such as dairy products, in place. The formulations are alkaline compositions containing a source of available chlorine (suitably hypochlorite) and including a mixture of surfactants one of which is a C.sub.4 -C.sub.6...     

An apparatus for rapidly stripping a photoresist which utilizes an oxidizing fluid such as ozone. A very thin layer of oxidizing fluid of four millimeters or less is flowed over the photoresist. The fluid flows at high velocity over the resist, while the resist is heated. Additionally, the resist may...     

An on-line system for cleaning dirty gas firing nozzles of an operating industrial gas turbine including injecting a suitable cleaning chemical at a specified rate into the gas fuel line just ahead of where the line enters the header supplying the nozzles through an injector quill equipped with a metering...     

In a floodwater and a process for floodwashing workpieces wherein the workpiece is immersed in a bath of washing liquid and a workpiece surface is acted upon by at least one jet of washing liquid issuing from a nozzle, in order to achieve optimum cleaning efficiency of the jets with as low pumping capacity...     

Fouled spinneret assembly parts are cleaned by impacting the fouled part with high-pressure jets of water. The water-jet cleaning treatment is especially effective for cleaning fouled spinnerets used in dry-spinning of spandex filaments.

A method and apparatus for cleaning filter elements that are vertically positioned within a filter vessel that has a tube sheet dividing the filter vessel into a lower filter compartment and an upper plenum compartment. A fixed volume of backwash liquid is rapidly directed from the plenum compartment...     

An apparatus and method for removing concrete from a ceiling surface by hydrodemolition which includes a mobile truck unit adapted for movement along a floor surface or the like and which supports a pair of upstanding telescoping support arms having an elongated boom mounted at their upper ends in a...     

An apparatus to remove rubber from airplane tires from an airport runway surface. There is a manifold arm which rotates at as high as two thousand five hundred rpms over the runway surface, with a plurality of water jets being discharged downwardly at a relatively high pressure (e.g. thirty five thousand...     

Solvents having superior cleaning power include at least one polar compound having at least one strongly electro- negative oxygen, such as ethylene diacetate, and at least one alicyclic carbonate, such as ethylene carbonate, with or without other additives. The solvents exhibit low toxicity; are nonflammable,...     

A cleaning composition for surfaces which contains a disappearing dye which can include a germicide. The composition is packaged airtight. The dye is pH sensitive so that upon exposure to air the dye disappears. The delivery of the cleaner gives a visual check as to the surface contacted.

A method and apparatus for cleaning filter elements that are vertically positioned within a filter vessel that has a tube sheet dividing the filter vessel into a lower filter compartment and an upper plenum compartment. A fixed volume of backwash liquid is rapidly directed from the plenum compartment...     

The invention is a cleaning method and associated apparatus that are particularly useful for cleaning surfaces formed of relatively hard materials such as grout or industrial rolls which are contaminated with relatively hard embedded deposits of undesirable materials that are difficult to remove by conventional...     

In a method of recovering silver from an aqueous suspension, the suspension is admixed with a solution capable of converting silver halide to metallic silver to cause flocculation of the silver, the flocculated silver is separated from the aqueous phase, and the silver is recovered.

A pool cleaning method and apparatus in which a vortex is generated to concentrate foreign material at the center of the pool. The vortex can be generated by a pool scrubbing procedure carried out in a systematic manner. The scrubbing and vortex inducing procedure can be carried out by manual means....     

The apparatus and method is utilized in a drive-through vehicle washing system of the type in which a vehicle is moved by conveyor along a longitudinal path across a floor surface, past a series of washing stations. The apparatus attaches to a parallelogram linkage such as that of a tire washing station...     

An apparatus and method for cleaning sewers of solid materials using normal and injected water flow to suspend the solids in a slurry. A submersible pump moves the slurry from the bottom of the sewer up to a pressurized container where the water content of the slurry is decanted and reused as injection...     

The invention concerns a washing device for treatment of rods attached to a plate with a solution. According to the invention the rods (6) are placed in ducts (4) through which the solution is passed. The invention can be used in particular in peptide syntheses and in immunological assay methods.

The present invention provides an apparatus and method for treating jet engine components with high pressure water. The apparatus of the present invention broadly consists of a generally enclosed room-size chamber, a water delivery means, including a nozzle body having multiple water emitting orifices,...     

A cleaning device comprises a cleaning tub, holding means for holding a plurality of objects substantially vertically at regular intervals, cleaning solution supplying means for supplying a cleaning solution to the cleaning tub through the bottom thereof, and distributing means for uniformly distributing...     

An apparatus for cleaning the interior surfaces of a vessel which includes a cleaning head supported and guided into the vessel by a rigid air shaft. The cleaning head is supplied with a process fluid and directs and removes the process fluid from a cleaning zone located on the interior surface of the...     

A new method of removing particles from the surface of a wafer is described. The key to the method is a room temperature ammonium hydroxide-hydrogen peroxide solution. The wafer is immersed in hydrofluoric acid, then, while the wafer is still wet, it is either immersed in an ammonium hydroxide-hydrogen...     

A noncaustic floor finish remover composition is described containing monoethanolamine citrate, couplers, and solvents, said composition having a pH between about 8.0 and about 10.0 through the addition of a sufficient amount of monoethanolamine or other alkali. The composition can also optionally contain...     

An improved process for the decontamination of process equipment and vessels is described wherein an extractant material for the contaminant and a surfactant are vaporized, heated with steam, to condense on the internal surfaces of the vessel to trap contaminants, such as benzene, for removal from the...     

A method for controlling the effective velocity of a spray of cleaning material in order to remove particulate matter and other contamination from a surface of a workpiece. The surface under treatment is moved relative to the position of a sprayhead in order to increase or reduce the velocity at which...     

An etching system for etching openings in a metal web including multiple etching station for etching a metal web from opposite sides with each of the etching stations including a set of first bank of oscillateable nozzles located in a first chamber in the etching station, with the first bank of oscillateable...     

An arrangement is provided for cleaning pipelines and especially ventilation pipes and ducts in buildings, and includes a nozzle connected to a supply conduit through which a pressurized medium can flow. The arrangement includes a nozzle opening directed back toward the supply conduit. The nozzle opening...     

A cleaning system for removing undesirable material from an outer surface of a critical or sensitive element relatively moving in a fluid comprises a tubular duct for the flow of the fluid medium and having an entrance end an exit end. The entrance end is oriented generally in the opposite direction...     

Contamination can be removed from equipment of a chemical processing flow path by pumping through the plant an aqueous solution at an elevated temperature of an extractant, such as terpene, and a surfactant mixture which traps contaminants for disposal in an environmentally acceptable manner.

A method for cleaning a substrate of the present invention, in which a plurality of substrates are placed substantially parallel with each other are dipped into a cleaning solution to remove particles adhering to each of the substrates, includes the step of dipping the substrates into the cleaning solution...     

A method for washing a group of semiconductor wafers in which a first support arrangement is provided for supporting the wafer group to be immersed in a solution, with a second support carrying the wafer group to the treatment vessel. The second support can be provided, for example, in the form of a...     

A device for applying fluid to a substrate which includes a head member having first and second opposed portions adapted for being fixedly positioned relative to each other. The device is particularly suited for treating a substrate as the substrate moves between the first and second portions. Each portion...     

A plate-shaped article is immersed in a cleaning liquid filling a cleaning bath having an overflowing surface through which the cleaning liquid flows out, and is rinsed out. In the cleaning bath, streams mostly being directed away from a predetermined plane approximately perpendicular to the overflowing...     

An apparatus and method for washing balls in a fluid is disclosed which includes a container for storing soiled balls and a wash unit having an elongated cylindrical housing suitable for containing the fluid and having a lower end adapted for receiving balls and an upper end adapted for discharging balls....     

An azeotropic composition includes a perfluorinated cycloaminoether and an organic solvent.

In order to clean a deposit filter having filter elements (4) installed in a suspended manner, first, with the plenum (3) filled with flushing medium, the liquid is discharged completely or partially from the filter chamber by way of an emptying line (7) by opening a ventilating line (6) arranged in...     

A wet indexer for receiving a cassette of wafers from a previous processing station that have not been allowed to dry. The wet indexer then keeps the wafers submersed in processing solution before and during indexed transmission to later cleaning stations.

Semiconductor wafers are positioned in a cleaning tank and subjected to sequential flows of one or more highly diluted cleaning solutions that are injected from the lower end of the tank and allowed to overflow at the upper end. One solution contains one part ammonium hydroxide, two parts hydrogen peroxide,...     

A method of removing labels utilizing an associated delabeling apparatus has a spaced pair of label removal stations for alternatively receiving inline objects from a supply conveyor. Each station includes a carrier carrying a set of spaced fluid jet cutters each at a cutting location for registration...     

A process for brush cleaning used in semiconductor wafer scrubbing systems. A process for brush cleaning that eliminates and/or reduces the load-up of brushes with contaminants. This brush cleaning process changes the pH level of a brush to repel contaminants that are on the brush. This process extends...     

A method of washing a blind which assures that a gap between adjacent louvers of the blind can easily be reduced to a shortest distance and dirty material can reliably be removed from the louvers. The method is practiced such that while the distance between the adjacent louvers is widened, a coil spring-like...     

A method for removing contaminants from a surface such as pavement using a portable closed-loop system which is transported to the location to be cleaned by a vehicle. The method includes storing a volume of fluid in a clean tank, pumping the fluid to a cleaning head, blasting the surface to be cleaned...     

It is disclosed a process for cleaning vehicles, especially cars, with an alkaline washing composition, preferably comprising one or more surfactants, where the washing composition is sprayed onto the vehicle with one or more nozzles or foam generators and where the alkaline washing composition in connection...     

A method for cleaning objects in a pressure vessel with liquefied gases is provided. The gas liquefied under pressure is conducted into the pressure vessel. The temperature of the liquefied gas then, or beforehand, is lowered below the critical temperature of the gas and cleaning is performed at least...     

It is known to wash dispersion noodles in a `batchwise` fashion in which the noodles are retained in a kettle or kettle and water is sprayed onto the surface of the noodles. Agitation is achieved by bubbling air into the kettle from the bottom. Described herein is a method and apparatus for continuously...     

The process for rapidly washing vehicles accumulates one or more of the requisite cleaning liquids under pressure prior to their use and subsequently rapidly releases them to wash the vehicle. Inherent in the process is the forceful impingement of water upon a vehicle to scour dirt therefrom. The impingement...     

A method of manufacturing a razor blade includes steps for removing oil, dirt and grinding debris from a metal surface by providing a plurality of wash, rinse and dry stations separated to prevent contamination carryover from one station to the next. Razor blades in stacks are passed through the stations,...     

A method for preventing formation of a sediment layer at the bottom of a tank containing a liquid mixture such as crude oil, refinery products and petrochemical products which tends to form a precursor in the form of a thickening precipitation zone above the bottom. The deposit of sediment is prevented...     

A method of treating a substrate including providing a fluid treatment apparatus including a first sheet of material having a plurality of spaced apart drive rod receiving passages extending therethrough and through an upper surface thereof. An inside surface of each drive rod passage provides a bearing...     

An aerial washing method for obtaining washing effects almost equal to those of underwater washing is embodied. An jet opening 12 for jetting high-pressure water in a direction generally parallel to the direction the nozzle's axis is provided in a nozzle port 11 of a washing nozzle 10, and a negative...     

Describes nonflammable organic solvent compositions comprising 1,2-dichloroethylene and a halocarbon different than 1,2-dichloroethylene. The 1,2-dichloroethylene consists essentially of trans-1,2-dichloroethylene, cis-1,2-dichloroethylene and mixtures thereof; preferably a major amount of trans-1,2-dichloroethylene;...     

A method for cleaning ion exchange resins. The ion exchange resin is circulated by a circulating medium within a circulation, system. The concentration of ions within a circulation medium is periodically changed at a selected point in the circulation system to change the amount of solution within the...     

A method for washing an object, such as an optical element, includes the steps of dipping the object to be washed in a heated liquid and taking the object to washed from the heated liquid used in the dipping process, wherein the resistivity of the heated liquid is 0.5 to 5.0M.OMEGA..multidot.cm. In one...     

Window blinds are cleaned by suspending a blind in a tank containing a bath of water. Pressurized air and water are discharged from openings in elongated conduits into the bath so as to form vortices contacting the blind. After the blind is washed, it is rinsed and dried.

A process is disclosed for cleaning of a substrate, comprising the steps of (1) adding a molecular oxygen activating system (as defined herein) to an aqueous wash liquor, containing a sufficient amount of molecular oxygen for obtaining observable cleaning, and (2) cleaning the substrate with the thus-formed...     

A system for removing protective coatings from a circuit board assembly. The system includes a tool for removing protective coatings from a circuit board assembly. The tool has a flow head, which includes a support, having an opening which is adapted to contact the circuit board assembly and flow solvent...     

A cleaning system for an endoscope is disclosed wherein the inlets of respective channels of the endoscope are connected to a suction pump through a connecting device enabling the endoscope to be cleaned by aspirating fluid through the channels under operation of the pump. The connecting device includes...