Abstract: A method of cleaning a concrete bowl is provided including the steps of a) introducing water into at least one concrete bowl; b) collecting the water from the bowl after it has been used; and c) cleaning a concrete bowl by introducing at least some of the collected water into the bowl under pressure.

Abstract: A system, methodology, and product to sort, organize and store individual members of building/construction toy sets utilizing a multi-level system of bins with sieves at different heights using user applied forces and gravity to automatically sort and organize pieces into bins, while providing a fun hands-on sorting experience for kids. The location, size and shape of the sieves can be designed to optimize sorting speed and user experience for specific toy manufacturer brands including Lego™ bricks made by Lego Corporation. The system also functions as a storage unit for the pieces, during and after sort. A flexible binding mechanism holds the system together during sort. The system is designed with see-through materials to monitor the status of the sort and find specific pieces in respective bins. A set of wheels enables mobility. The “hands-on” involvement in sorting also makes this an entertaining and educational apparatus for kids.

Abstract: Apparatuses for screening granular solid particulate material include a generally planar first screen and a second screen. A plurality of apertures extends through the first screen. At least a portion of the second screen is oriented at an angle to the first screen, and apertures extend through a perforated region of the second screen. The second screen includes at least one region configured to prevent at least some particles of solid material from passing through the second screen.

Abstract: The present invention relates to a sieve device for screening at least two solid substances preferably different from each other comprising at least one sieve module (1), comprising at least two sieve devices (2), comprising at least one fitting (3) with a bottom with sieve (4), closing the respective fitting (3).

Abstract: An apparatus which is useful in the separation of solids from a diluted, wet, concrete mixture has (a) a free-standing first container with a drain port and a top opening, (b) a strainer disposed within the first container, (c) a drain port shut-off valve, (d) a second container capable of providing a reservoir for recovered liquid, and (e) a transfer conduit for allowing effluent from the drain port of the first container to gravitate into the second container.

Abstract: A method of manufacturing a large stationary, aggregate processing screening tower by fabricating weldment modules and preassembling them with aggregate processing equipment internal within the weldment modules, transporting the preassembled weldment modules to a field work site where the tower is to be erected on a foundation, aligning the modules and stacking the modules in layers and then bolting adjacent modules together. A large stationary, aggregate processing screening tower has weldment modules preassembled with aggregate processing equipment internal within the modules. The preassembled modules are stacked up on one another and secured together and can receive aggregate product at the top module and the product is processed by screening and sizing as it moves downwardly by gravity through the modules and their processing equipment for final clarification and collection of the product.

Abstract: A device enabling the timely removal and subsequent recycling of residues remaining in a pouring chute through which the load of a cement from a mixing drum of a mobile delivery vehicle was discharged. A strainer on a movable arm attached to the vehicle is placed under the chute to receive an effluent which results from spraying the inside of the nozzle with water. Solid particulates are retained by the strainer and a slurry which emerges from the strainer is pumped into the mixing drum, allowing the separated materials to be recycled when the vehicle returns to its base.

Abstract: A compound disc is used to eliminate a secondary slot normally formed between adjacent shafts of a material separation screen. The compound disc comprises a primary disc joined to an associated secondary disc. The primary disc and the secondary disc each have the same shape but the secondary disc has a smaller outside perimeter and is wider. The primary disc and associated secondary disc are formed from a unitary piece of rubber. The compound discs are interleaved with oppositely aligned compound discs on adjacent shafts. In other words, the large disc is positioned on a shaft to align with a smaller disc on an adjacent shaft. The oppositely aligned and alternating arrangement between the large discs and small discs reduces problems that exist in screens that use in-line multi-sided discs.

Abstract: The invention provides a separator plate for the screening of particulate material comprising an upstream non-perforated segment, and at least one downstream screening segment with orifices of a desired size and orientation and with a plurality of upward protruding pins distributed between the orifices. There is also provided a sorting apparatus comprising a vibratory screen constituting the above-described separator plate.

Abstract: Screens have been developed which, in one aspect, have interconnection apparatus including male projections on one first screen end which are received in female openings on another adjacent screen end. In one aspect the female openings are defined by raised portions of a three-dimensional screen and the male projections either are formed of the other screen's end or are part of plugs inserted into raised portions of the first screen end. A shale shaker has been developed with such screens. In one aspect such a shale shaker has screens disposed in a tiered configuration, one screen in sealing contact with the next. Screen connector apparatus has also been developed for such screens.

Abstract: A large or square plansifter has a large number of sieve stacks with e.g. more than 20 sieve boxes. Such boxes are constructed without a supporting grating and design so as to be exchangeable in the covered state and so that they can be placed on or in the sieve frames. A free product fall-through space or discharge space is accordingly formed between the sieve screen and a flat base plate. The sieve cleaners are placed on or in the flat base plate. In a particularly preferred manner, the sieve frames are constructed as metal frames. The sieve cleaners clean the sieve screen and clear the product from the base plate. The sieve cleaners preferably have 2, 3 or 4 arms.

Abstract: A solid/liquid separation apparatus in which a downwardly-inclined separator screen is supported across the open front face of a liquid collection chamber. The screen and chamber are mounted in an outer frame having spaced side walls. The screen has separate upper and lower sections and is adjustably mounted on at least one of the side walls at a position intermediate the upper and lower ends of the screen so that it can be moved inwardly and outwardly in a direction transverse to the plane of the screen to adjust the relative vertical angles of screen sections. In one version, the upper and lower screen sections are separate screens and are adjustable via separate adjustment mechanisms.

Abstract: A separating apparatus for classifying particulate material according to size, including a sub-housing enclosing a horizontally extending cleaning screen. A plurality of separate conveyor mounted paddles sweep a top surface of the cleaning screen and a further plurality of paddles are biasing into sliding contact with a bottom surface of the cleaning screen to loosen clogs of particulate material clogged within the screen.

Abstract: Apparatus for cleaning, aerating and fumigating grain comprises chutes having screens therein over which the grain is passed. Conduits interconnect the chutes with a blower mechanism so that the grain to be cleaned is subjected to a vacuum which causes the fine debris, trash and the like to be passed through the screen. The fine debris is entrained in a stream of air and directed exteriorly of the grain storage structure. The conduits connected to the blower assembly may be detached from the grain cleaning chutes and connected to tubes inserted into the grain to permit heated gases and moisture to be removed from the stored grain. An air entrained fumigant may also be directed through the tubes into the grain for controlling insects and the like.

Abstract: An arrangement for piling a bulky material of different grain sizes has one central and two lateral passages, a guiding element located upstream of the passages and arranged to guide a flow of a bulky material toward the lateral passages, and grate elements located between the guiding element and a respective one of the passages and arranged so that the fine portion of the material passes through each of the grate elements into a respective one of the lateral passages, whereas the coarse grain portion of the material is guided over the grate elements so as to pass into the central passage.

Abstract: A sieve chain having upper and lower ends is disposed in a housing and comprises a plurality of sieve sections and hinge means connecting adjacent ones of said sieve sections in series from one of said ends to the other. Each of said sieve sections has an inclination in the general direction from said upper to said lower end. A hinge connects one of said ends of said chain to said housing. An adjusting device is hingedly connected to the other end of said chain. The suspension flows over said sieve chain in the general direction from said upper to said lower end.

Abstract: In removing impurities, such as printing inks, binders, fiber fragments and pigments, from a fibrous suspension of waste paper containing water, the fibrous suspension is directed downwardly over an inclined sieve for removing the impurities through the sieve. In its length direction between its upper and lower ends, the sieve is divided into a number of individual sections. A triangularly shaped groove-like trough is located between the lower end of one section and the upper end of the next downwardly adjacent section. The trough extends transversely of the length of the sieve and is shaped to provide a swirling movement to the suspension flowing into the trough. At the outlet from the trough a flow-stemming device is provided for affording the uniform level of the suspension as it flows over the next section of the sieve.