Abstract: An apparatus and method permits unattended cleaning of a surface. A clamping mechanism engages features around a contaminated surface and is connected to a dome-shaped receptacle containing a gelled acid compound. The gelled acid compound is pressed and held against the contaminated surface during cleaning. Gelled acid ensures that the acid component for dissolving does not readily disburse into the ambient environment. Contamination exposed to the gelled acid compound is dissolved, and the clamping mechanism is disengaged for other cleaning tasks. More reliable attachment of instrumentation and other packages can be made to the cleaned surface. The uncomplicated apparatus and method of the invention allow a single diver to quietly attach packages underwater in the harsh marine environment.

Abstract: An automatic production system includes an automatic washing device usable to wash off swarf left on a workpiece by an NC machine tool. The automatic washing device is used before measuring a portion of a workpiece using a three dimensional measuring device controlled by a measuring part program controlling the three dimensional measuring device. When automating an operation of the washing device, a washing program is produced based on the a measuring part program controlling the three dimensional measuring device to be able to efficiently wash a minimal area of the work piece encompassing the portion of the workpiece to be measured.

Abstract: There are provided a lower sensor and an upper sensor mounted respectively on top and bottom surfaces of a sensor unit, an operation unit calculating respective measurements indicating the degree of adhesion of dirt to respective surfaces of a lower mold and an upper mold based on respective detection signals from the lower sensor and the upper sensor, and a comparator unit comparing each measurement from the operation unit with a predetermined reference value to transmit a predetermined warning signal if the measurement is equal to or smaller than the reference value. The warning signal is thus transmitted if reflected radiation that is radiation reflected from the mold surface has its intensity equal to or smaller than the reference value.

Abstract: An improved automated car wash of the type wherein a vehicle remains stationary within an enclosure when being washed and the car wash includes washing equipment that moves relative to the vehicle. An elongated rail mounted on the floor defines a path for a vehicle entering the car wash to follow. The driver of the vehicle to be washed is instructed by a signaling system that advises him or her when to drive into the car wash, when to stop and when to exit. The improvement of the invention includes a plurality of extendible elongated guide poles mounted near the floor and adjacent the rails on either side of the vehicle. When the signaling system instructs the driver to enter the car wash, the poles are automatically pivoted upwardly so as to be visible to the driver for assisting the driver in guiding the vehicle into the car wash.

Abstract: Ultrasonic cleaning products comprise a cleaning composition comprising a cleaning component and a source of dissolved gas and an ultrasonic wave generating source for imparting ultrasonic energy to a surface to be cleaned. Methods for removing soil from a surface in need of cleaning comprise applying a cleaning composition comprising a cleaning component and a source of a dissolved gas to a surface in need of cleaning, and contacting the surface with a source of ultrasonic energy.

Abstract: This invention relates to a vibrating abrasive cleaning apparatus and method which is powered by at least one electric motor specially fabricated to the cleaning container assembly mounted on a rigid square tubing frame on one side by compression springs, on the opposite side by tension springs. The compression springs and tension springs have a different spring rate which produces better rolling of the media and therefore, faster circulation and cleaning. The specially fabricated electric motor attached to the cleaning container provides for enhanced oscillation and much greater cleaning capabilities thereby reducing the cleaning time. The entire vibrating assembly sits on a base and has a lid operated by a cable and counterweight for ease in loading the container for oscillation of the parts.

Abstract: In a method of cleaning a metallic article, in particular for removing oxide deposits, whereby the metallic article is made of a hardenable steel having a carbon content of at least 0.1% by weight and is at least partially hardened, the metallic article is placed in a vessel containing a liquid cleaning agent with a pH value in the range of 4 to 8, and exposed to sound waves.

Abstract: An electrochemical sensor (A, A′) is specific for the detection of peroxyacetic acid in a solution which also contains hydrogen peroxide. A potential is applied between a reference electrode (120, 120′) and a working electrode (118, 118′). A read voltage (FIG. 7) is selectively pulsed across a counter electrode (122, 122′) and the working electrode. The current flowing between the working electrode and the counter electrode is dependent on the peroxyacetic acid concentration in the solution (FIG. 6). By careful selection of the read voltage, the contribution of hydrogen peroxide to the current flow is virtually negligible. The sensor effectively measures peroxyacetic acid concentrations in the range generally employed in sterilization and disinfection baths (100-3000 ppm.).

Abstract: A cleaning method for CVD apparatus wherein by-products such as SiO2 and Si3N4 adhered to and deposited on surfaces of the inner wall, electrodes and other parts of a reaction chamber at the stage of film formation can be removed efficiently. Furthermore, the amount of cleaning gas discharged is so small that the influence on environment such as global warming is little and cost reduction can be also attained. After the film formation on a base material surface by the use of CVD apparatus, a fluorinated cleaning gas containing a fluorcompound is converted to plasma by means of a remote plasma generator, and the cleaning gas having been converted to plasma is introduced into a reaction chamber so that any by-products adhered to inner parts of the reaction chamber is removed.

Abstract: An ultraviolet ozone oxidation system combines ultraviolet radiation, ozone, and heat to gently and effectively remove organic materials from a variety of substrates. The UV-ozone oxidation system includes a source of ozone which flows into a reaction chamber of the ultraviolet ozone oxidation system. The reaction chamber includes a UV lamp positioned above a heated sample stage. The heated sample stage is movably mounted such that a distance between the work piece or sample and the UV lamp can be adjusted to a minimum possible distance to improve process time. In addition, the heated sample stage is provided with a radiant heater which will provide adequate heating of the sample stage while the distance between the heater and the sample stage may be varied. The reaction chamber is also provided with a membrane diffuser which is positioned between the ozone source and the sample stage for uniformly distributing ozone to the sample on the sample stage.

Abstract: An extraction cleaning machine comprising dispensing and recovery systems, the dispensing system including a system for generating heat with an exothermic reaction upon activation for heating the cleaning solution prior to dispensing of the cleaning solution onto a surface. The cleaning solution dispensing system comprises a cleaning solution reservoir to which the heat of the exothermic reaction can be added and a dispenser. The heat of the exothermic reaction can also be added in line to the cleaning solution between the cleaning solution reservoir and the dispenser. The recovery system includes a suction nozzle, a recovery tank and a vacuum source for drawing recovered liquid from the suction nozzle into the recovery tank. A method of cleaning a surface comprises the steps of heating a cleaning solution by an exothermic chemical reaction, applying the cleaning solution to the surface and recovering the cleaning solution from the surface.

Abstract: A cookware washer includes a wash chamber, and a lower rack positioned within said wash chamber. The lower rack includes a substantially unobstructed bottom surface.

Abstract: The invention addresses the need for an automatic dishwasher that can accommodate various shapes and sizes of utensils. The invention relates to an automatic dishwasher comprising a cabinet that defines a washing chamber. The cabinet has an access opening, which is closeable by a door that is moveably mounted to the cabinet between an open position and a closed position. A first basket is moveably mounted within the washing chamber and capable of movement between a use position and a load position. An auxiliary basket assembly comprising an auxiliary basket and an auxiliary basket support for support the auxiliary basket above the first basket.

Abstract: A dishwasher includes a housing having a washing chamber and a door for gaining access to the washing chamber. A washing nozzle is provided in the washing chamber for directing a fluid stream against dishes held in the washing chamber. A circulation pump circulates fluid under pressure through the washing nozzle. A supply line delivers fluid to the circulation pump while a drain line discharges fluid from the washing chamber. Additionally the dishwasher includes an acoustical insulation blanket of thermoplastic material. That blanket extends around the washing chamber and the circulation pump and is precisely cut to fit snugly around the fluid supply line and the drain line so as to eliminate gaps therebetween and the acoustical leaks associated therewith. A method is also disclosed for enclosing the noise-generating components of the dishwasher in an acoustical insulation blanket of thermoplastic material.

Abstract: The present invention relates to a system for cleaning a pressurized container having at least one chemical contained therein. The pressurized container may be any type of container able to store chemicals under pressure. Preferably, however, the container may be a rail tank car. Generally, the system includes the container that may have a plurality of valves for adding or removing gaseous or liquid material to or from the container. The container may be connected with a nitrogen tank that may be heated via a heater. The container may further be connected to a flare for incinerating residual chemical material that may be removed from the container.

Abstract: The frontloading dishwasher has a dishwashing compartment and a door mounted on the machine body such that it can be pivoted about a horizontal axis for closing a loading opening of the dishwashing compartment. The bottom border of an inner wall of the door, forming a door lip, engages behind a compartment skirt that rises from the dishwashing-compartment base. A seal is arranged between the door and the dishwashing compartment. The seal includes a sealing strip that extends across the entire door width. Satisfactory sealing of the dishwasher is ensured over a long period of use, dirt deposits in the sealing region are avoided, and only a low level of force for moving the door is required in that a guide and securing device for the seal is provided, for securing the seal in the rest position and for guiding the seal during movement of the door.

Abstract: Described are cleaning methods and apparatus that minimize the volume of hazardous materials used and created when cleaning components, and further to minimize the possibility of cross-contamination between components from different deposition chambers. Components to be cleaned are stored within or supported by a dedicated cassette before they are placed in a receptacle of cleaning liquid. The cassette displaces a significant percentage of the receptacle's volume; consequently, only a relatively small volume of cleaning liquid is needed to fully submerge the component. In typical embodiments, the combined cassette and component displace a volume of liquid that is greater than the volume of liquid used to clean the component. One embodiment of the invention reduces the requisite volume of cleaning solution using a number of liquid-displacing elements (e.g., balls) contained within a cleaning receptacle.

Abstract: A powered utensil basket is provided that captures a jet stream emanating from a nozzle located along a rear wall of a wash-tank type pot and pan washing machine. The nozzle directs the jet stream towards a bottom wall of the utensil basket. The jet stream is diverted from the bottom wall of the utensil upward and forward toward a front wall of the basket where it is diverted upward and rearward toward a rear wall of the basket. At the rear wall of the basket, the jet stream is again diverted downward towards the bottom wall where the jet stream is then diverted forward again towards the front wall. This diversion of the jet stream creates a washing action within the utensil basket that is substantially similar to the washing action of the washing machine.

Abstract: A cleaning apparatus uses an ultrasonically excited cleaning fluid to clean an object disposed in a cleaning chamber that is substantially isolated from a surrounding environment. The apparatus is particularly suited to cleaning a portion of an elongate member, especially (but not necessarily only) an intermediate (i.e., a portion excluding a distal end portion) portion thereof. In one example, the cleaning apparatus is usable to clean only an intermediate portion of an optical fiber stripped of its coating. The cleaning fluid may be, for example and without limitation, an alcohol such as isopropyl alcohol, or acetone. The cleaning fluid may be circulated in a closed circuit. The closed circuit may include one or more of a fluid pump, a vacuum device for further urging the fluid through the system, and a fluid filter for cleaning the used fluid of at least some contaminants before it is reused.

Abstract: A device for washing and drying foods has an elastic sleeve-shaped body having two opposite ends, one of the ends being fixable elastically and water tightly onto an edge of a container, a filter provided with a plurality of openings for water to run through and arranged in another end of the body and a closing cap adapted to close and to open the filter.

Abstract: An adapter having a central tubular connecting portion to enable the adapter to be fitted to a drain clearing tool, and a flexible skirt portion of frusto-conical shape extending from the central connecting portion partway along its length. The connecting portion has a first part on one side of the skirt portion and a second part with a different diameter from the first part on the other side of the skirt portion, and the skirt portion having a first configuration in which it surrounds one of the connecting parts and a reversely bent second configuration in which it surrounds the other connecting part.

Abstract: An apparatus and method are provided for removing contaminate particulate matter from substrate surfaces such as semiconductor wafers. The method and apparatus use a material, preferably a liquid curable polymer, which is applied as a sacrificial coating to the surface of a substrate containing contaminate particulate matter thereon. An energy source is used to dislodge the contaminate particulate matter from the surface of the wafer into the sacrificial coating so that the particles are partially or fully encapsulated and suspended in the sacrificial coating. The sacrificial coating is then removed. The coating is preferably formed into a film to facilitate removal of the coating by pulling (stripping) the film providing a cleaner substrate surface.

Abstract: A device (20) for cleaning dentures broadly includes a cup (21) adapted to hold a liquid (L), and a strainer (29) associated with the cup. The cup as an upper peripheral lip (24). The strainer (29) is a basket-like member having a foraminous bottom (30). The strainer is adapted to be lowered into the cup to submerge a denture contained within the strainer in the liquid. The strainer has at least one hook (35) that is adapted to selectively engage the cup lip (24) such that the strainer may be held in an elevated position relative to the cup such that liquid on the denture may drain into the cup.

Abstract: A washed sand drying and handling plant (100) includes a belt feed hopper (1), a conveyor belt (2), a sand rinsing unit (3), a dewatering apparatus (4), a radial conveyor (5) and a sand drying and handling apparatus (6). The sand drying and handling apparatus (6) includes four vesssels or tanks (7). Each tank (7) is generally cylindrically shaped and has a cone-shaped base. Sand is held in the tanks (7) for a predetermined amount of time sufficient to allow the sand to dry to the desired level by gravity.

Abstract: A retainer for supporting gun parts in an ultrasonic bath is provided with a plurality of supports that retain such gun parts in positions whereby cleaning of such parts by ultrasonic means is optimized. The retainer supports are specifically configured to maximize the removal of dirt and debris from gun parts, and certain supports are adjustable to accommodate a variety of gun makes and models. The retainer is also constructed to prevent direct contact between gun parts, which might otherwise result in unnecessary wearing at such contact locations.

Abstract: A wet cleaning apparatus can remove trace heavy metals, colloidal matter or other impurities contained in ultra-pure water to be used as rinse water in semiconductor cleaning processes and suppress deposit of trace impurities such as heavy metals or other particles that would otherwise cause characteristics of such devices to deteriorate. A wet cleaning apparatus for rinsing with ultra-pure water as a rinse liquid by supplying ultra-pure water through a piping to a rinse location inside the apparatus. The rinse location is a point of use of the ultra-pure water. The wet cleaning apparatus includes a module filled with porous film in which polymer chains having at least one of an anion exchange group, a cation exchange group, and a chelating group are held in the middle of the piping positioned inside the apparatus. The wet cleaning apparatus further includes a means for adding hydrogen gas to the rinse liquid.

Abstract: Objects of the present invention lies on reduction of washing water quantity, and pressure loss of the washing water to the maximum by improving a flow passage of a medical instrument washer.

Abstract: A dish rack includes a base rack of a wire framework and at least one rack side element that is releasably connected to the base rack and, as seen by a user who is loading the dish rack with items which are to be washed, is fitted laterally thereto. A cutlery-accommodating device is integrated in the rack side element to produce an integral dish rack the allows, on one hand, the straightforward construction of the base rack—preferably in the form of a U—and, on the other hand, the releasable fastening of the rack side element to an integrated cutlery-accommodating device.

Abstract: A dishwashing machine constructed to allow quick and easy removal and replacement of the pump/motor used to pump liquid to the spray system. The pump/motor is mounted at a back comer area of the dishwasher cabinet on a track which angles to the center front area of the cabinet. Quick disconnect couplings allow the pump to be disconnected from the piping so that the pump/motor can be slid along the track and removed out the front of the cabinet. Each coupling includes a sealing sleeve located at a pipe joint and a clamp that can be tightened to seal the sleeve against the pipes. The couplings can be loosened by loosening nuts which release the clamps.

Abstract: A shield or deflector for a dishwashing machine rack is disclosed. The deflector has a bottom wall and a front wall that permits food particles to be caught or deflected away from the floor when the rack extends beyond the door of the dishwashing machine when the door is in an open position. The deflector is removably or permanently mounted on the rack.

Abstract: The invention addresses the need for an automatic dishwasher that can accommodate various shapes and sizes of utensils. The invention relates to an automatic dishwasher comprising a cabinet that defines a washing chamber. The cabinet has an access opening, which is closeable by a door that is moveably mounted to the cabinet between an open position and a closed position. A first basket is moveably mounted within the washing chamber and capable of movement between a use position and a load position. An auxiliary basket assembly comprising an auxiliary basket and an auxiliary basket support for support the auxiliary basket above the first basket.

Abstract: A retainer for supporting gun parts in an ultrasonic bath is provided with a plurality of supports that retain such gun parts in positions whereby cleaning of such parts by ultrasonic means is optimized. The retainer supports are specifically configured to maximize the removal of dirt and debris from gun parts, and certain supports are adjustable to accommodate a variety of gun makes and models. The retainer is also constructed to prevent direct contact between gun parts, which might otherwise result in unnecessary wearing at such contact locations.

Abstract: A utility grill pail for cleaning barbecue grills. The pail includes an open top container with a raised rib bottom. A perforated front lip extends inward from a front portion of the container sidewall. Side hand grip openings and a rear hand grip opening are formed in the sidewall near its upper edge. The rear hand grip opening carries two removable hooks that hold the barbecue grill while rinsing and draining. The pail holds a quantity of cleaning solution into which the grill may be placed to soak before scrubbing and cleaning.

Abstract: A portable, diver-operated cryogenic freezing unit cleans surfaces underwater. A housing has a first chamber that contains cryogenic liquid, such as liquid nitrogen, and a second chamber is disposed adjacent to an end portion that fits about contaminating matter on a surface underwater. A valve vents cryogenic liquid from the first chamber to expand as gas in the second chamber. The vented cryogenic liquid and gas freeze a slug of water and the contaminating matter on the surface within the end portion. The housing is bent, twisted or otherwise displaced to break or pry-away and remove the frozen slug of water and contaminating matter from the surface to thereby clean it. A method of cleaning a surface underwater using the cryogenic freezing unit is described.

Abstract: A device for washing a reusable storage bag in a dishwasher formed by a frame assembly of one or more main bar(s) joined with one or more connecting bar(s). Intersecting crossbars act both to spread open the bag and hold it for washing, utilizing a snugness of fit between the crossbars and the bag and its sealing strips. The device has holes in the bottom of the main bar(s), which allow it to be placed and secured onto any of the vertically oriented branches of the dish trays common to conventional dishwashing machines. The device is designed to hold and spread the bag apart wide enough to allow the washing jets of a conventional dishwasher to reach even the corners of the bag, thereby cleaning it inside and out.

Abstract: The present invention provides a dishwasher having a wash chamber including a sump. A pump having a rotating element is supported within a pump housing wherein the pump is adapted to draw liquid from the sump through an inlet area and then pump liquid to the wash chamber. A particle chopping assembly is supported in the inlet area upstream of the rotating element, the particle sizing assembly including a particle screen rotatably supporting drive shaft which drivingly supports a chopping blade adjacent the particle screen. The drive shaft has a coupling end which detachably couples to the rotating element. The coupling between the chopping blade and the rotating element is capable of accommodating axial tolerance with regard to the axial position of the rotating element.

Abstract: The invention provides for an anti-drip feature for the common contact lens cleaning cup so as to avoid spillage of cleaning solution by providing an overflow container which attaches to the lens cleaning cup to catch spillage.

Abstract: A semiconductor processing system has a liquid chemical metering and delivery system including a process tank and a metering vessel. Fluid level detectors detect the fluid level in the process tank and metering vessel. A two stage fill valve fills the metering vessel from bottom to top. A dispense valve dispenses the metered contents of the vessel into a process tank via gravity, to form a chemical solution in the process tank, with high mixing accuracy. The volumes of the metering vessel and process tank and the inflow and outflow rates are set to provide 100% up time to a process chamber which uses the chemical solution to process semiconductor wafers or other flat media.

Abstract: A cassette holder is positioned within cleaning equipment. The cleaning equipment includes a solution tank, at least one pipe positioned on an internal wall of the solution tank, and a cassette in which at least one semiconductor wafer is placed. The cassette holder has a loading plate in the solution tank for holding the cassette. Pluralities of guide blocks mounted on the loading plate prevent movement of the cassette. A side-frame is positioned at an end of the loading plate proximate to the pipe. The bottom of the loading plate has a plurality of neck feet, and each neck foot is covered by a first tube that enhances support strength of the neck foot. The cassette holder further includes at least one weight to overcome buoyancy.

Abstract: Methods and apparatus are provided for precisely and repeatably positioning spray bar. In accordance with a first aspect, an apparatus is provided that includes (1) a spray bar having an alignment mark and one or more openings, the spray bar configured to output a fluid spray from the one or more openings; (2) a mounting device having an alignment mark, the mounting device configured to support the spray bar; and (3) a substrate support configured to support a substrate. The alignment mark of the spray bar and the alignment mark of the mounting device may be aligned so as to position a fluid spray output by the spray bar toward a substrate supported by the substrate support. Numerous other methods and apparatus also are provided.

Abstract: A retainer for supporting gun parts in an ultrasonic bath is provided with a plurality of supports that retain such gun parts in positions whereby cleaning of such parts by ultrasonic means is optimized. The retainer supports are specifically configured to maximize the removal of dirt and debris from gun parts, and certain supports are adjustable to accommodate a variety of gun makes and models. The retainer is also constructed to prevent direct contact between gun parts, which might otherwise result in unnecessary wearing at such contact locations.

Abstract: A high pressure pump (14) supplies cleaning fluid from a reservoir (12) to spray nozzles (20) inside a washing chamber (10). The spray nozzles (20) spray the cleaning fluid over a load to be cleaned. Used cleaning fluid is collected in a sump (30). A sump pump (32) drains the sump. The combination of the high pressure pump and sump pump provides more efficient cleaning of the load and eliminates the requirement for a deep sump beneath the washer. A vertical traveler (22), having a pair of counterbalanced spray arms (24), raises and lowers the spray nozzles counter cyclically; a detergent injection system (50) accurately meters a correct amount of detergent is added to the cleaning fluid; and a filtration device (34) filters suspended material from the used cleaning fluid and uses a portion of the cleaning fluid to clean itself.

Abstract: An improved method for removing and collecting plating wax from waxed components such as turbine engines components from aircraft, and an improved collector for reducing this method to practice. Collectors known in the art generally have 1) a process tank filled with a remover solution into which the waxed component is fully immersed and the wax is removed; 2) a wax separator tank connected to the process tank for receiving therefrom an overflow of remover solution and removed wax; and 3) a circulating pump for pumping the wax remover solution from the wax separator tank back to the process tank. The collector of the invention further has a level controller operating with microwaves for monitoring the level of remover solution in the wax separator tank and a chemical pump connected to and controlled by the level controller in order to maintain the level of wax remover solution in the wax separator tank close to a preset level by pumping a new batch of remover solution in the wax separator tank.

Abstract: A portable, diver-operated cryogenic freezing unit cleans surfaces underwater. A housing has a first chamber that contains cryogenic liquid, such as liquid nitrogen, and a second chamber is disposed adjacent to an end portion that fits about contaminating matter on a surface underwater. A valve vents cryogenic liquid from the first chamber to expand as gas in the second chamber. The vented cryogenic liquid and gas freeze a slug of water and the contaminating matter on the surface within the end portion. The housing is bent, twisted or otherwise displaced to break or pry-away and remove the frozen slug of water and contaminating matter from the surface to thereby clean it. A method of cleaning a surface underwater using the cryogenic freezing unit is described.

Abstract: A device for washing and drying foods has an elastic sleeve-shaped body having two opposite ends, one of the ends being fixable elastically and water tightly onto an edge of a container, a filter provided with a plurality of openings for water to run through and arranged in another end of the body and a closing cap adapted to close and to open the filter.

Abstract: A silo type storage tank includes a clean-in-place system comprising a flush opening having an edge transition located at about four and one half inches below the weld seam joining the tank top to the sidewall and fed by an upwardly angled channel in the tank sidewall arranged at approximately 23 degrees from the interior surface of the tank sidewall. The edge transition comprises a chamfer along most of the circumference with an undercut formed along the upper portion of said edge transition. Alternately, a second spray or “helper” tube may be provided that has its opening aligned to spray cleaning fluid immediately beneath the flush opening so that cleaning fluid flowing through the tank sidewall opening and the helper tube washes the entire interior surfaces of the tank. In still another embodiment, a spike may be provided in the spray path instead of a helper tube to divert the spray so that a complete clean-in-place function is achieved.

Abstract: A fryer system has a vat having four sides and a bottom. A plurality of heat exchange tubes extending across the vat. A spray unit having at least one nozzle disposed above the plurality of heat exchange tubes is operably connected to a fluid supply. The spray unit is oriented to direct a flow of fluid onto the sides and bottom of the vat and onto the heat exchange tubes.

Abstract: A rack assembly is described for a dishwasher. The rack assembly has a centerline extending from a front of the dishwasher to a rear of the dishwasher. The rack assembly includes a rack, roller assembly, and a mounting system. The rack has a front edge and a rear edge connected by a right side edge and a left side edge. The rack also has a centerline extending from the rack front edge to the rack rear edge. The roller assembly rotatably couples the rack to the dishwasher such that the rack is slidably moveable with respect to the dishwasher. The mounting system is coupled to the rack and is slidably coupled to the roller assembly. The mounting system is configured to remain coupled to the roller assembly during movement of the rack when the rack centerline is skewed relative to the rack assembly centerline.

Abstract: A denture wash for more thoroughly and easily cleaning dentures. The denture wash includes a lower assembly comprising a bottom wall, four walls, a plurality of nozzles, a first central nozzle, and a pump, a upper unit assembly comprising a lid, four walls, a plurality of nozzles, and a second central nozzle, and a denture holding assembly.

Abstract: The invention, in a first aspect is a multi-piece rotor for use in a chemical spray cleaner. The rotor comprises a top plate, a bottom plate, a plurality of struts, and a pair of retainer bars. The top plate defining an aperture keyed to a wafer cassette. The bottom plate includes an interior surface on which the wafer cassette may bottom and an exterior surface defining an aperture for receiving a rotating shaft. The struts separate the top and bottom plates, each strut fastened at a top end thereof to the top plate and at a bottom end to the bottom plate. The retaining bars fasten to adjacent ones of the struts on the radially proximal surface thereof. In a second aspect, the invention is a rotor constructed from polyphenelyne sulfide for use in a chemical spray cleaner.