Abstract: A bolster pin is provided which automatically cleans the flask bushing of a mold set. The bolster pin has brushing elements which clean the flask bushing each time the mold set is joined or separated. Use of the bolster pin provides a method for automatically cleaning the flask flange bushing of entrapped sand.

Abstract: A method for reducing contamination in a vacuum processing chamber includes introducing into the vacuum chamber a gas selected to react with the contaminant and form a compound more volatile than the contaminant. The volatile compound is then removed from the vacuum chamber, typically by vacuum pumping. In one embodiment, the vacuum chamber is an ion implantation chamber, the contaminant is phosphorous and the gas is water vapor, which reacts with the phosphorous to form phosphine gas or other high vapor pressure phosphorous-containing substances.

Abstract: A method is provided for removing corrosion products from metallic articles having an interior surface and exterior surface, comprising the step of contacting one of said surfaces to be cleaned with a substantial amount of fluid which is effective for removing corrosion at a predetermined temperature while simultaneously exposing the other of such surfaces to an induction heating means.

Abstract: A dishwasher monitor/controller for monitoring the operation of a dishwasher and providing human-intelligible speech messages upon the detection of predefined fault conditions. The operation of the dishwasher is periodically monitored using temperature measurements, water conductivity measurements, detection of the absence of drying agent, and timers to measure how long various physical conditions continue between periodic maintenance procedures. The dishwasher faults detected include directly tested faults and indirectly (elapsed-time dependent) tested faults. The direct tests for faults are for low rinse water temperature, low wash water temperature, and absence of drying agent. The indirect tests are for dirty wash water, absence of detergent, and the need to inspect the interior of the washer for dirt and calcium carbonate scale build-up. Furthermore, there is provided a switch activated facility for orally explaining, step-by-step, how to properly start-up the dishwasher and how to shut it down.

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: A cleaning composition particularly suited for removing dried printing ink residue from a substrate is described comprising a chlorinated hydrocarbon liquid, a petroleum distillate, an aliphatic alcohol and aqueous ammonia.

Abstract: Heat exchanger tubes are cleaned, while the heat exchanger is operated to cool a liquid passing through the tubes, by applying an electric current to a portion of the tubes for brief time periods to heat such tubes to a temperature sufficient to melt or soften deposits therein, while simultaneously continuing to pass liquid therethrough.

Abstract: Contaminated covered plastic waste material in the form of used Petri dishes, so-called agar plates, is rendered harmless and cleaned by placing the agar plates in a bacterium-tight heating chamber maintained substantially at atmospheric pressure and contacting them with water at an elevated temperature, preferably 90.degree.-98.degree. C. for a predetermined period of time. After the predetermined period the agar plates are rinsed with water which is then drained off through an outlet in the bottom of the heating chamber. The agar plates to be treated are loaded into the heating chamber in batches contained in bags wholly or partly consisting of a plastic material which is solid and substantially insoluble in water at room temperature but soluble in water at the elevated temperature.

Abstract: The disclosure embraces a method of and apparatus for applying a liquid material aftertreatment to texturized or bulked strand or yarn and particularly strand or yarn of glass fibers or filaments. The method and means of application of the liquid material aftertreatment to the texturized or bulked strand or yarn involves advancing the texturized strand or yarn over an applicator, applicator body or member wherein the applicator body is provided with an opening or orifice through which the liquid material is delivered onto the texturized or bulked strand or yarn and the liquid treated texturized or bulked strand or yarn wound into a package on a rotating body. One of said bodies is reciprocated with respect to the other for traversing the liquid treated texturized strand or yarn lengthwise of the package during winding of the package.

Abstract: Apparatus for cleaning a flowable material filling device composed of a hopper for holding the material, a plurality of spaced-apart assemblies, each of which includes a cylinder into which material flows from the hopper and a piston movable in the cylinder to force material from the cylinder into containers, and a piston support structure for causing the pistons to move in the cylinders. The apparatus includes a lifting mechanism coupled to the piston support structure and responsive to a first signal for moving the piston support structure in a first direction to thereby move the pistons out of the cylinders, and responsive to a second signal for moving the piston support structure in a second direction to thereby move the pistons back into the cylinders. Valve controlled liquid spray nozzles are positioned to spray liquid into the cylinders and against the pistons when they are removed from the cylinders in response to a third signal.

Abstract: Toner is removed from the surface of a drum coated with a photo-sensitive material by bringing a cleaning blade into contact with the surface when the drum is stationary, rotating the drum at a monotonically increasing rate of speed until a predetermined rotational speed is reached, monotonically increasing the contact pressure exerted by the blade against the drum surface while the drum speed is being increased so that the contact pressure reaches a maximum contact pressure when the drum reaches the predetermined rotational speed, and maintaining the maximum contact pressure while the drum continues rotating at the predetermined rotational speed.

Abstract: A coating layer, such as a photosensitive selenium coating is removed from a substrate by producing cracks in the layer, introducing a volume expansive material into the cracks, and then causing the volume expansive material introduced into the cracks to expand and thereby dislodge the coating layer from the substrate.

Abstract: A vacuum cleaner structure arranged to provide front edge cleaning fully to the intersection of a floor surface and an upright wall surface by a forward movement of the vacuum cleaner nozzle thereto. The vacuum cleaner structure includes a front wall of the nozzle having openings and associated structure for selectively closing the openings when the nozzle is spaced remotely from the upright wall surface and automatically causing the openings to be opened when the nozzle front wall is closely juxtaposed to the upright wall surface. The closure member, in the illustrated embodiment is pivotally mounted to the front wall and movement thereof is effected by an actuator sensor button slidably mounted in the front wall to overcome the gravity biasing and suction biasing of the closure member to the closed position, as an incident of the front wall of the nozzle being juxtaposed to the upright wall surface.

Abstract: A diphase drain cleaning composition and method wherein the composition has two liquid layers. The lower, denser layer makes up from 50 to 99 percent of the total composition weight while the upper, less-dense layer makes up from 1 to 50 percent of the total composition weight. The lower layer consists of at least 20 percent sulfuric acid solution. The upper layer consists of a halogenated aliphatic hydrocarbon polystyrene solvent and, optionally, fully saturated aliphatic hydrocarbons. The composition attacks drain blockage consisting of polystyrene and other organic and inorganic matter in two phases. First, the lower layer of sulfuric acid contacts the blockage and melts and dissolves many organic and inorganic materials. Second, loosened polystryene, which is not affected by the sulfuric acid, floats to the upper layer where it is dissolved by the solvent making up the upper layer.

Abstract: A pipeline pig is provided having a restricted fluid bypass channel which serves to bring fluid from the back of the pig to its front, the fluid agitating and suspending discrete solids such as sand or rust, or commingling with scraped paraffinic and asphaltic deposits accumulated by the pig as it moves through the line, thereby preventing the buildup of a solid bed or plug of sufficient thickness or viscosity in front of the pig so as to cause the pig to partially collapse and ride over it or to become stuck.

Abstract: A solid surface is eroded by directing a liquid axially through a converging passage in a nozzle toward the surface, then deflecting the liquid in a lateral direction parallel to the surface while the liquid is subject to cavitation.

Abstract: A cryogenic liquid is used to directly or indirectly cool solid or liquid contaminants adhering to apparatus surfaces to effect a change in the physical characteristics of the contaminants and thereby render them more susceptible to removal operations.

Abstract: 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 away from the web and downwardly past the side edges of the web.

Abstract: A process for cleaning soil, lubricants or other such contaminants from tin surfaces without visibly etching the tin surface by applying aqueous alkaline cleaning solutions to said surfaces. Spraying is a preferred means for contacting the surface with the solutions. The cleaning solutions may be effectively employed at temperatures as low as about 100.degree. F. and thus may be characterized as low temperature cleaners. The cleaning solutions comprise an alkaline component in an amount effective to substantially remove said contaminants from the tin surface and an inhibitor in an amount effective to inhibit or deter etching of the tin surface. The inhibitor is a compound selected from the group consisting of substituted benzenes having at least two or more hydroxy substituents, quinones and substituted quinones.

Abstract: A vapor degreasing method and apparatus wherein a second cooling coil is used to prevent escape of solvent or solvent vapor from a degreaser. Gaseous refrigerant from the second coil can be released to the freeboard space above the solvent vapor zone to provide a barrier layer.