Abstract: A mechanism applies necessary forces for the creation of one or more plugs of compressible material to be supplied to a reactor. The plugs are capable of forming a seal between inlets for the plugs and the reactor. The mechanism includes two double-acting hydraulic piston cylinder assemblies coupled with two single-acting hydraulic piston cylinder assemblies.

Abstract: The present invention relates to a press for fruit and vegetable products including at least one column that includes a feed element and several pressing stages. Each stage of pressing includes an essentially cylindrical outer shell which is internally associated with a pressure-deformable impermeable membrane which lines a respective pressing chamber in each stage. At least one perforated collector tube is positioned along the column inside each pressing chamber and coaxially to each outer shell.

Abstract: A method of operating a filter press for solid-liquid separation of a product, the filter press comprising a press jacket with an end, and a ram in the press jacket and movable relative to the end to define a pressing space. The method comprising loading a product to be pressed in the pressing space; positioning the ram in a start position so that the product only partially fills the pressing space; advancing the ram, during a first phase of a forward movement, from the start position to a full contact position where the volume of the pressing space becomes equal to a volume of the product; and advancing the ram toward the end from the full contact position during a second phase of the forward movement, the ram exerting no pressure on the product during the first phase but exerting pressure on the product during the second phase to press liquid phase out of the product. At the full contact position, the ram is advanced at a forward velocity lower than an average forward velocity over the first phase.

Abstract: A press for pressing out substances containing liquids, especially agricultural and chemical products, includes a closed container whose inner area is divided by at least one press membrane into a pressure medium chamber and a pressing medium chamber. A fill/discharge opening, sealable by a lid, is disposed in the casing and is associated with a juice run-off located in the pressing medium chamber. Flexible or elastic liquid-permeable drainage elements are also disposed in the inner area of the container for removing juice. The drainage elements include at least one support element and a flexible tube disposed therearound and are of a juice-permeable material. The drainage elements are configured as single-pieced components and are detachably received on the container by holding devices, which are disposed on both sides of the container, each drainage element being able to be removed as a component from the inner area of the container.

Abstract: In a diaphragm (3) of a diaphragm press for separating liquid and solid materials by action of a pressure medium on the materials (7) via the diaphragm (3), the functions of sealing and retention are separated. This is accomplished by a dual embodiment of the diaphragm (3) in the form of a substantially sealing diaphragm seal (14) and a substantially retaining diaphragm carrier (13). A force transmission from drainage elements (6) in the press chamber (4) of a pressing vessel (1) of the diaphragm press to the diaphragm (3) can be accomplished by the diaphragm carrier (13) in a manner that treats the material gently. This substantially improves the service life of the diaphragm (3).

Abstract: A press for removing water from masses containing materials of organic origin. The press has a compression chamber (2) with a perforated mantle. The discharge end of the compression chamber contains a piston part (3), which is reciprocable in relation to the compression chamber and movable in and out and through which (6) the mass discharges from the compression chamber. The invention is suitable for use, for example, for drying sludges resulting from sewage treatment.

Abstract: A filter envelope (26) for a rod-shaped, flexible drainage core (4) with flow paths (5) for removing the pressed-out fluid from the pressing chamber of a press. By winding the filter envelope (26) itself around it, a ring-shaped bulge (20) is fixedly connected with it (26) for assembling the filter envelope (26) and the drainage core (4) on one or both ends of the press.

Abstract: A filter sleeve (26) surrounds a rod-shaped, flexible drain core with flow paths for removing a pressed-out liquid from the pressing chamber of a press. For mounting one or both ends of the filter sleeve (26) and the drain core on the press, a rubber or elastically deformable shaped element (29) with a ring-like bead (22) is firmly connected with the filter sleeve (26) at its end. The shaped element (29) inseparably penetrates the fabric of the filter sleeve (26) because of an elastomer coating, and the bead (22) is automatically positioned in a groove (24) of a support body (23) because of its previous stretching.

Abstract: Apparatus is provided to reduce filter abrasion in fruit juice presses of the type where juice is removed through a boundary wall (1) from a compression chamber by way of channels in each of a plurality of drainage cores (4) covered by filter envelopes (29). Each filter envelope (29) is attached to its drainage core (4) outside the region (35) in which the drainage core (25) is mounted on the boundary wall (1) of the press. Also, the drainage core includes a bending zone formed so that only slight bending stresses occur. Consequently the service life of the apparatus is distinctly increased with respect to the known systems.

Abstract: The rod-shaped flexible core (6) of a drainage element (2) mounted in a pressing space (1) of a fruit press has several longitudinal grooves (8, 13) on its periphery, through which the extracted juice is conveyed to juice collecting spaces (5). The free ends of each drainage element (2) are detachably fastened by drainage locks (3) to juice collecting plates (4) bordering the pressing space (1). In the area of rigid drainage lock (3), through which the juice is guided, the longitudinal grooves (8) are widened, so that in this area, in which the flexibility of core (6) to assist the flow process is absent, the risk of clogging by solid sediment particles in the juice is prevented.

Abstract: To fasten filter covering (4) of a drainage element (2) for a fruit press, rod-shaped, flexible core (3) of drainage element (2) carries an elastic sleeve (11) on its end. Filter covering (4) is pulled over sleeve (11) and is held by an O-ring (13) in a annular slot (14) of sleeve (11). The end of drainage element (2) is detachably fastened in a holder (6) that is placed in container wall (5) of the fruit press to be axially immovable and that overlaps filter covering (4) and O-ring (13). During pulling action on filter covering (4) in the direction of arrow (17), annular slot (14) and O-ring (13) are deformed so that O-ring (13) acts as a wedge and solidly braces filter covering (4) against sleeve (11).

Abstract: In order to remove liquid from a slurry of water and powdered material, and particularly from a slurry containing spent powdered ion exchange resins and other media used to decontaminate water in nuclear power plants, a vessel is filled with the slurry. The vessel contains filters, particularly panels which are arrayed in the upper portion of the vessel and through which water is filtered leaving a body ("cake") of the powdered material in the vessel. The filters are surrounded on at least their sides and top by a bag of pliant material. This bag defines a variable volume region and may be evacuated to compress the cake against the filters, prevent breaking suction at the filters and enabling them to continue to remove the water remaining in the cake so that additional water may be removed from the cake and discharged from the vessel, leaving a compact mass which efficiently utilizes the volume of the vessel, thereby preparing the vessel and the dewatered slurry for disposal.

Abstract: A refuse compactor is disclosed that includes a flexible bag of non-permeable material having an opening through which refuse can be placed in the bag. The bag is supported in an upright position to receive refuse through the openings in the bag. A lid is positioned to close the opening in the bag, as the pressure in the bag is reduced below atmospheric pressure periodically to crush and compact the refuse in the bag. The pressure is reduced by pumping air from the bag through a flexible hose that extends to the bottom of the bag to that any liquid collected in the bottom of the bag will be moved also.

Abstract: A press for extracting fluid from fluid-containing matter so as to separate the fluid from the remaining matter, particularly for dejuicing of agricultural products, primarily fruit, includes a rotatably supported container, and at least one flexible membrane which can be actuated by exerting pressure thereon. The membrane is disposed in the container, and subdivides the container so as to define a pressure chamber and a press space therein. At least one wall surrounds the press space, and the pressure chamber has an inlet conduit and an outlet conduit for a pressure medium. Flexible drainage devices are located at least partly on the wall, and extend into the press space.

Abstract: In a mechanism for releasably securing a longitudinal and flexible drainage element to a press-plate of a press which has a press-space for squeezing juice from fruits, and wherein the press-plate defines a passage, a securing device which includes a collar is provided which is received in the passage, and at least partially surrounds the drainage element near an end thereof. A securing sleeve is connected to the collar, and is formed with a shoulder, which abuts the press-plate on a side thereof facing the press-space. The drainage element is releasably secured by the securing device to the press-plate.

Abstract: Apparatus and method for compressing raw fiber stock into a perforated basket for dyeing in a radial-flow dyeing machine. A hollow container is provided by a perforated cylinder section stacked separably on an imperforate section for loading fiber stock into the common interior. A piston movable under force of water pressure is located in the imperforate section to compress the loaded fiber stack into the perforated section. A closure plate is movable with the piston and is attachable to the perforated section following fiber compression to close the perforate section with compressed fiber therewithin, such that the perforated housing may be removed and used as a dyeing basket. A central core element is secured to the closure plate and is movable therewith to maintain an open center in the dyeing basket for use of the basket in a radial dyeing machine.

Abstract: A pneumatically operated press, particularly for pressing grapes, has a cylindrical drum which is rotatable about a horizontal axis.An internal membrane separates the drum into a pressing space in which the groups are pressed and an air space to which compressed air is introduced.A side wall of the drum defining the pressing space is perforated for passing the juice from the space and an opening in this side wall admits the grapes before and after pressing.The drum is cylindrical with the perforated side wall comprising half the drum surface and presenting a smooth surface to the membrane.The membrane is connected to the drum at opposite sides of its axis by connecting strips.

Abstract: In a press for obtaining juice from agricultural products having a container, a press plate and a reaction press plate movable relative to one another within the container, a plurality of longitudinal drainage lines connecting the press plates, and wherein each line has a predetermined drainage capability and includes a flexible central core and a sleeve of a material acting as a filter surrounding the central core, at least one of the drainage lines includes a drainage element extending therefrom, so that the drainage capability of the drainage line is increased beyond the predetermined drainage capability.

Abstract: A method of pressing and draining whey from cheese curd. In particular, this method is made suitable for producing large blocks of cheese. A container mold having an internal drain screen is filled with cheese curd particles. Pressure is then applied to the cheese curd draining whey into the drain screen and out of the container mold. The container mold is then inverted and the internal drain screen is removed and another application of pressure is used to close any remaining voids within the cheese curd. The container mold is then sealed and prepared for shipping.

Abstract: Large blocks of cheese are formed in a container having a removable bottom, side walls, and an essentially open top. A plurality of upstanding perforated tapered posts extend from the removable bottom to essentially the desired final height of the cheese block. The posts are longitudinally and laterally spaced from one another so that the curd surrounds each post when the container is filled with curd. Pressure is then applied downward to the curd in the container which compacts the curd and causes draining of whey through the upstanding perforated posts. After the curd has been compacted to the desired height, and the whey has been drained through the upstanding perforated posts, the container is inverted and the tapered posts are withdrawn. Pressure is again applied to cause the curd surrounding each perforated post to knit together and aid in removal of any additional whey, thereby providing a cheese block of uniform texture.

Abstract: A method of pressing and draining whey from cheese curd particles in manufacturing large sized blocks of cheese. Cheese curd is placed into a pressing container mold which has a removable internal draining means having dimple-like projections maintaining a space between the plates of the screen. In one embodiment of the invention, pressure is applied in a vertical direction on the curd particles uniformly draining the whey. The drain means is extracted, and a second application of pressure closes remaining interstitial voids. In a second embodiment of the invention, a first application of pressure is applied to the curd particles in two separate directions at the same time. A spreading spade is inserted between substantially vertical parallel foraminous plates thereby moving these plates further apart exerting a relatively horizontal force on the curd particles and, in conjunction, a press plate pushes down on the curd particles exerting a relatively vertical force on the curd particles.

Abstract: The invention relates to a fluid or liquid settling and pressing tank for materials containing liquid, like grape, fruit mash or the like, in the most diverse forms, for example as cylinders, polygons, spheres of the like, with pressing systems arranged in the interior in the form of an elastic membrane which can be pressed by means of compressed air or hydraulic pressure into the interior of the container, also comprising loading and discharge apertures, whereby the container is rotated about its axis and designed as a closed container having immediately ahead of the one frontal wall and/or at a distance from the container jacket, a screen bottom.

Abstract: The press comprises a main cage provided with a perforated cylindrical wall which may be driven in rotation by a motor and an auxiliary cage having a perforated wall integral with a plate which is movable in translation and connected to rotate with the main cage. A screw is provided and driven in rotation by a motor on which screw the hub of the movable plate is screwthreadedly mounted. The end wall of the press is rotatably mounted on the screw. When pressing, the juice flows radially through the two perforated walls.

Abstract: A drainage system for fruit presses including a pressing cylinder and a pressure plate and back pressure plate assembly moveable toward each other. A flexible traction means including an elongate flexible core and a flexible perforated casing for allowing juice to pass therethrough while filtering same. The core having a substantially larger cross-sectional area at its central portion than at its ends. The core defining longitudinally extending channels throughout its length.