Abstract: A paint roller is cleaned by being slowly rotated while immersed in a body of cleaning liquid within a container. The container is then drained and jets of rinse liquid are directed against the roller while it is rapidly rotated to free it of cleaning liquid. A final rapid rotation of the roller is conducted for spin drying.One side of the container has drain openings for maintaining a cleaning liquid level in the container during the cleaning operation wherein the roller is slowly rotated in a direction advancing its upper marginal portion toward said one side of the container.

Abstract: Apparatus wherein spent, coked catalyst is admixed with combustion air externally of the regenerator and then introduced into the lower portion of a dense phase fluidized bed of said regenerator via an inlet. The inlet is characterized as an annulus, annular area or zone around a regenerated catalyst standpipe from which regenerated catalyst is removed from the regenerator and recycled to the reactor. Generally from about 3 percent to about 20 percent, preferably from about 5 percent to about 10 percent, of the total air introduced into the regenerator is introduced in this manner and balance of the air, which is in itself sufficient for complete combustion, is introduced via a separate air inlet into the regenerator.

Abstract: Electrostatic toner particles are removed from the cylindrical surface of a cold pressure fusing roller by contacting the surface with a section of wire helically strung across the surface. The wire is secured to a pair of discs flanking the ends of the roller and having diameters less than that of the roller.

Abstract: A process for cleaning surfaces of installations fouled by products of combustion of carbon-bearing materials, such as in particular boiler combustion chambers, rotary or static heat exchangers, combustion product ducts and flues, electrostatic filters, etc., which are to be cleaned without having to stop the combustion process, in order to maintain maximum thermal efficiency in order thereby to make a substantial energy saving, in which an aqueous solution of ammonium nitrate and potassium nitrate is injected into the installation, the deposited substances being detached from the installation by means of sound sources.

Abstract: A device constructed in one solid piece for scraping, directing and tamping garbage to and through flexible splash guards leading into an electric garbage disposal unit in a kitchen sink includes a cylindrically shaped main tamper body, a continuous ridge extending from the external surfaces of the main tamper body and bisecting these surfaces to form three distinct ridge sections, and a cylidrically shaped handle attached to the main tamper body and of a smaller diameter. A portion of the main tamper body and the ridge taper toward the handle.

Abstract: Decayed portions of potatoes are removed by supporting and advancing the potatoes on a series of rollers relative to a plurality of water spray nozzles with rubber fingers being mounted on some of the rollers. The rubber fingers contact the potatoes with sufficient force to penetrate the decayed portions without damaging the peel or other sound portions of the potatoes while water sprays contact the potatoes with sufficient force to remove the penetrated decayed portions while leaving the remaining portions intact.

Abstract: A process for treating shrimp is described that results in their having desirable moisture retention after cooking or freezing, while retaining their natural appearance, by contacting them with a mixture of sodium tripolyphosphate and sodium acid pyrophosphate salts in water, wherein the salts have a weight ratio of 80:20 to 60:40 and the mixture yields a pH in water of about 6.2 to about 7.1; optionally up to 7 wt % of ordinary salt can also be employed in the aqueous mixture of phosphate salts.

Abstract: A dishwasher such as a domestic dishwashing machine has a first recirculating path for recirculating wash and rinse fluids through nozzles which spray the fluid onto food ware items in the wash chamber of the warewasher. Fluid is also circulated from the wash chamber through a soil collecting circuit which conducts fluid to a soil collector which is separate from the wash chamber and recirculating path. The soil collector removes food soil from fluid passing therethrough and holds it for discharge into the dishwasher drain system when the fluids are drained from the dishwasher.

Abstract: Oils or petroleum hydrocarbons are separated from solid or solid/liquid mixtures thereof with soil, sand or oil processing residues, by treating these oil-containing mixtures with an aqueous solution or dispersion of a crude extract of microbially produced glycolipids and separating the oil-containing phase from the aqueous phase.

Abstract: A process monitoring probe within a sample container is cleaned by flushing a sample process stream from the container and then discharging a jet of water from a nozzle at the probe within the container. A chemical cleaning agent is injected into the water to be discharged from the nozzle.

Abstract: A process for reducing hydrogen sulfide gas evolution during dissolution of ferrous sulfide with an aqueous acidic solution comprising contacting the ferrous sulfide with an aqueous acidic solution containing an effective amount of an additive comprising at least one member selected from the group consisting of maleic acid, maleic anhydride and the alkali metal and ammonium salts of maleic acid. The aqueous acidic solution also can contain corrosion inhibitors.

Abstract: Cleaning apparatus and method, particularly for the inner surfaces of pipes. A conical sheet water jet issues from a vortex chamber and a second conical sheet jet issues from a second vortex chamber in which the water and abrasive have swirled at lesser pressure. The two jets impinge to form a resultant conical jet which strikes and cleans the pipe wall. Guides hold the apparatus within the pipe so that the axes of the pipe and all the jets coincide, and the hoses by which water and abrasive reach the apparatus may also be used to help move the apparatus up and down the pipe. The axial sense of the resultant jet may be such that it exerts a "squeegee" action upon the pipe wall when the apparatus is withdrawn from the pipe by pulling the hoses.

Abstract: A paint roller cover having an outer annular absorbent layer is plugged at one end and inserted through one end of an open-ended cylindrical casing into a snug position within the casing. In one embodiment, said one end of the casing has a closure cap adapted for connection to a supply source of pressurized liquid for forced flow through the absorbent layer and discharge out of the other end of the casing. In another embodiment, said one end of the casing is insertable into piston-cylinder relationship with the open upper end of a container substantially filled with a cleaning liquid. Relative axial movement of the casing and container operates to force the liquid through the absorbent layer. An important feature of the invention is that during endwise movement of the cover into the cleaning position, the material of the absorbent layer will be angularly deflected into a position which is conducive to the uniform distribution of the axial flow of cleaning liquid within the annular layer.

Abstract: Waste thermoplastic resin film is cleaned to reclaim raw material for subsequent recycling by crushing a mass of the waste film into pieces and then feeding the pieces onto a moving mesh conveyor immersed in a wash tank which is filled with a cleaning liquid; the liquid being at a temperature sufficient to soften the pieces. Cleaning is promoted by irradiating the pieces on the conveyor with ultrasonic energy from positions located on opposite lateral sides of and just above the upper surface of the conveyor while simultaneously forcing liquid in the tank to flow in the same direction as the conveyor while directing jets of additional liquid into the tank in the opposite direction to produce a forced circulatory flow pattern within the tank.

Abstract: Disclosed are methods for coating discrete food pieces with a sweet coating such as in the preparation of a presweetened ready-to-eat cereal. The coating contains a mixture of crystalline fructose and high fructose corn syrup. The amorphous fructose of the HFCS is converted in situ into the sweeter beta fructo-pyranose. The method of preparation comprises the steps, in sequence of: (A) providing a base of dried food pieces; (B) applying HFCS seeded with up to 2% powdered crystalline fructose; (C) enrobing dry powdered crystalline fructose onto the cereal pieces in a weight ratio of crystalline fructose to HFCS of from 2:1 to 1:1; (D) coating the food base pieces with an edible oil; and (E) dusting with a dry powdered sugar.

Abstract: This invention provides a valve by means of which a major portion of the suction flow of a swimming pool filtration system is channeled through an automatic cleaning device which cleans the floor and/or wall of a swimming pool, and a minor portion of the suction flow is drawn from the surface of the pool thereby to skim the surface. The valve has a main inlet opening connectable to the device, an outlet opening connectable to the filtration system and an auxiliary opening which is closed to some extent by a closure member to normally provide a restricted aperture through which the water drawn from the surface flows. The closure member is biassed closed by a spring located in a variable volume chamber which communicates with the interior of the valve between the auxiliary opening and the main inlet opening. When the restricted aperture is blocked by leaves or the like, the pressure in the chamber decreases, compressing the spring and allowing the closure member to open.

Abstract: An improved method of cleaning carbonaceous matter from enclosed cavities in gas turbine engines is comprised of providing inlet and exit gas ports to the cavity, carefully heating the structure having the cavity to above 470.degree. C. and providing air at controlled temperature, flow, and pressure. The temperature, pressure and flow is controlled during the process to induce flow through cavities which are fully blocked initially, and to avoid over pressurization of cavities which are not adapted to sustain substantial pressure.

Abstract: In an apparatus for cleaning recorded discs wherein the discs are immersed into and removed from a cleaning liquid in a container, a flow of the liquid is provided substantially parallel to and slightly below the level of the liquid in the container across the area of the surface of the liquid through which the discs pass as they are removed from the liquid. The flow is provided by a plurality of nozzles located in the container slightly below the level of the liquid through which relatively clean liquid from the container is pumped. This flow is at a rate such as to remove from the area of the surface through which the discs are to pass contaminants which may float to the surface of the liquid.

Abstract: An ultrasonic cleaning apparatus which is configured for transportation to an object positioned for use for in situ cleaning and a method for accomplishing the cleaning. In one embodiment, the present invention provides a substantially planar transducer array which can be employed to clean biofouling from heat exchangers or other devices that are disposed in a contaminated liquid environment. Sufficient levels of power can be generated so that the liquid medium in which the cleaning apparatus is disposed can be caused to undergo cavitation to effect the desired cleaning action. Through the use of various types of instrumentation, areas which need to be cleaned as well as the effectiveness of cleaning and the operating parameters of the apparatus can be determined. The transducers are oriented so that they radiate in alternate directions to produce bi-directional radiation and are energized by a pulsating power input.

Abstract: Lubricants and metallic fines are removed from aluminum surfaces by contacting the surfaces with an aqueous solution containing an active fluoride compound, sulfuric acid, and a surfactant.