Abstract: A method for receiving and ejecting molded articles includes: (a) drawing air from a cooling tube cavity into an air channel through a plate bore to draw at least a portion of a molded article into the cavity; (b) moving a valve within the plate bore from a first position for conducting air from the cavity to the air channel to a second position for reducing air flow through the plate bore relative to the first position; and (c) when the valve is in the second position, urging pressurized air from the air channel to the cavity through the plate bore to assist ejection of the molded article from the cavity.

Abstract: An improved concrete floor arrangement is formed from a single cast piece or alternatively a plurality smaller cast pieces linked together to form a floor surface. The floor is arranged in the form of a grid.

Abstract: An injection mold including a first mold, a second mold disposed opposite to the first mold and configured to form a cavity having a shape that corresponds to an injection-molded product to be manufactured by being coupled to the first mold, an injection apparatus configured to inject molten resin in the cavity, and an adsorption apparatus configured to adsorb and separate the injection-molded product, which is manufactured by the first mold and the second mold, from the first mold, so that the separation of the injection-molded product is performed by the adsorption apparatus, and thus structures configured to separate the injection-molded product are omitted from the first mold and the second mold, thereby simplifying the structures of the first mold and the second mold.

Abstract: A method for demolding concrete blocks which are cast in a resilient mold supported in a rigid frame, the mold having a top surface and at least one cavity with an opening on the top surface, which cavity holds a cured cast concrete block. The mold has two opposing edges. The demolded blocks are stacked on a collection surface. A support is positioned over the cavity and the mold, the support and the frame are inverted and positioned in demolding apparatus. After two opposing edges of the mold are engaged by the demolding apparatus, the support is withdrawn to allow the mold to sag. The blocks may release from the mold and fall onto the collection surface. If any blocks remain in the mold, a plunger mechanism is pushed against the sagging mold to release the blocks. Guide members may facilitate positioning the blocks on the collection surface.

Abstract: Molds and processes that permit high-speed, mass production of retaining wall blocks having patterned or other processed front faces, as well as retaining wall blocks formed by such processes. The invention permits the front face of the block to be impressed with a pattern or otherwise directly processed, to allow the formation of pre-determined block front faces, while at the same time facilitating high-speed, high-volume production of blocks. A mirror image of the desired pattern can be created on a stripper shoe by selecting a desired three-dimensional surface from a naturally occurring or man made object and digitally scanning the selected three-dimensional pattern to create scanned data. The scanned data can then be used to machine a face of the stripper shoe that is the mirror image of the selected pattern.

Abstract: In one embodiment, a method for treating an infected implant area of a knee joint comprises surgically accessing the implant area, and inserting a tibial component into the tibia using an antibiotic-impregnated material. A femoral component is formed that is configured to interact with the tibial component by stable knee joint articulation and motion. The femoral component is formed of an antibiotic-impregnated material using a mold. The femoral component is attached to the femur using an antibiotic-impregnated material, and the tibial component is interfaced with the femoral component to form a stable temporary knee joint capable of reducing the spread of infection while permitting movement of the knee joint.

Abstract: A multi-zone cementitious product, which includes a base zone made of a first cementitious material composition and forming a portion of the product. At least one facing zone is adjacent to and bonded to the base zone, the facing zone made of a second cementitious material composition and forming at least one exterior face of said product which is visible when the product is installed. A disrupted boundary layer is between the facing zone and the base zone, and includes material from both the facing zone and the base zone. The disrupted boundary layer bonds the facing zone to the base zone. The facing zone has a thickness sufficient to prevent the base zone from being visible when the product is installed.

Abstract: A concrete block mold division plate for front-face-up block molding. The division plate fits into a channel formed in each of the side walls of the mold. A plurality of fasteners secure the division plate within each channel and to the side walls of the mold. The division plate operates in conjunction with an optimized dry cast concrete mixture to provide acceptable control of the flatness and parallelism of the top and bottom surfaces of the blocks.

Abstract: A seamless microchannel with aligned microelectrodes structure can be prepared to include a polymeric body defining a surface of a seamless microchannel. The microchannel is seamless in that it is formed by a single body of material having a conduit that is open at one surface and extends to another opening aligned with microelectrodes in another surface of the body. The rest of the microchannel is closed and defined by the single body of material. The seamless microchannel structure can be used in methods that include biosensors, coupling waveguides, capillary electrophoresis chips, microreactors, polymerase chain reaction-chips, and solving mathematical problems.

Abstract: The present invention relates to an apparatus and method for forming molded tapered products, such as masonry blocks, whereby high quality finished products are removed from their mold without the need for complex machinery for demolding. The mold may include one or more mold cavities having one or more movable cavity walls. The movable cavity walls may include an end liner having a planar product forming surface capable of moving from a vertical position to an angled position. Tapered products may be formed by moving the mold towards a pallet so that the pallet engages with the end liner and causes the end liner to move from the vertical position to the angled position. Moldable material may then be introduced into the mold cavity and may be allowed to remain in the mold cavity until it is self-sustaining.

Abstract: Molds and processes that permit high-speed, mass production of retaining wall blocks having patterned or other processed front faces, as well as retaining wall blocks formed by such processes. The invention permits the front face of the block to be impressed with a pattern or otherwise directly processed, to allow the formation of pre-determined block front faces, while at the same time facilitating high-speed, high-volume production of blocks. A mirror image of the desired pattern can be created on a stripper shoe by selecting a desired three-dimensional surface from a naturally occurring or man made object and digitally scanning the selected three-dimensional pattern to create scanned data. The scanned data can then be used to machine a face of the stripper shoe that is the mirror image of the selected pattern.

Abstract: The wire of the interdental treatment part is inserted into a shaft opening of the injection molding tool, preferably into a strip of the injecting molding tool such that said treatment part projects with a mounting section thereof into a cavity connected to the shaft opening. Preferably, a first cavity section is configured is configured on the strip, and a second cavity section is configured on a cavity body, to with the strip abuts at least during the injection molding process. After injection of plastic into the cavity, and after the at least partial curing thereof, the handle part thus formed is moved by a distance in the direction against the cavity along with the interdental treatment part, and the handle part is removed from the opened injection molding tool.

Abstract: An apparatus and method for releasing a lens molded in a cavity between posterior and anterior mold sections and adhered thereto. A post is configured to support a flange of the posterior section while the anterior section remains spaced from the post. Posterior section is compressed between a pin applied to an outer concave surface of the posterior section and the post, thereby initially releasing peripheral regions of the posterior section and subsequently the remaining portions thereof. Upon separation, the anterior section together with the lens drops onto the post so that its outer convex surface rests on the post. A collar unit with gas channels presses against a flange of the anterior section while blowing jets of gas towards an interface between a “monomer” ring formed around the lens. In this manner, initially the “monomer” ring and then peripheral regions of the lens are separated from the anterior section.

Abstract: The invention relates to a method for the production of a bodyshell structure for a motor vehicle, wherein a sheet-like textile support element impregnated with a curable matrix material is provided and, following the positioning of suitable reinforcing and molding elements, molded around at least one mold core, whereupon the matrix material is cured. After the removal of the at least one mold core, a single-piece bodyshell structure joined by adhesive force remains. The invention further relates to a bodyshell structure produced by means of this method.

Abstract: An injection mold for molding a product which has a gap and an inserting groove at a side thereof includes a movable mold and a stationary mold. A fillister is designed in an inner sidewall of the inserting groove. The stationary mold includes an inclined pillar slantwise mounted in the stationary mold. The movable mold includes a movable core and a sliding mechanism which includes a sliding block, a preventing board and a sliding element. The preventing board is further inserted in the sliding block therein. The sliding block is parted from the product to form the gap, for assisting the sliding element to be parted from the product to form the inserting groove and the fillister under the drive of the inclined pillar and the inner end face of the sliding block acting on the other end of the sliding element, when the injection mold is opened.

Abstract: A method for operating a rotary press, comprising a rotor rotatably driven about a vertical axis that has a die-plate and upper and lower rams which, while being guided vertically in guides of the rotor, interact with holes of dies in the die-plate wherein at least one compression station is provided and has an upper and a lower pressing roller past which the presser rams run along and by which they are moved towards the die-bore for the purpose of compacting the material in the die-hole, wherein the upper and lower rams are lifted subsequent to the compression procedure, causing the lower ram to eject a compact from the die and the compact to be stripped by a stripper in the direction of a discharge chute, characterized in that while an compact ejection procedure is under way the upper ram stands upright on top of the compact and is lifted therewith and the stripper seizes the compact laterally while the upper ram is still standing upright on top of the compact.

Abstract: An impeller, a fan apparatus, and a method of manufacturing the impeller are provided. The impeller includes a support portion, a plurality of rotor blades, and a joining member. The joining member is a substantially annular member provided to strengthen the rotor blades against influence of a centrifugal force, and extends in a circumferential direction along a circle centered on a central axis so as to join the rotor blades to one another. In each of the rotor blades, a point of intersection of a leading edge of the rotor blade with a radially outer end of the rotor blade is positioned forward, with respect to a rotation direction, relative to a point of intersection of the leading edge with an outside surface of the support portion. The joining member is positioned radially inwards of the radially outer end of each of the rotor blades.

Abstract: A method for manufacturing hollow bricks comprises following steps: providing a frame-shape mold with at least a cavity and placing it on a flat surface; inserting at least one mold insert transversely through the cavity of the frame-shape mold and loading material into the cavity; and forming a billet of a hollow brick by moving an upper die downward to press the material. Besides, the frame-shape mold and the billets of hollow bricks can be separated from each other by lifting the upper die, moving the mold insert out of the cavity, and moving the frame-shape mold. The billet of the hollow brick that is taken out is dried to form a hollow brick having a certain height and can be used in hollow-brick wall construction.

Abstract: A system includes one or more compacting wall retraction mechanisms for retracting one or more compacting walls of a compactable lightweight concrete block mold having at least two compacting walls. The compacting wall retraction mechanism(s) facilitate release of a compacted lightweight concrete block from the compactable lightweight concrete block mold. The system can include a mold feed conveyor, and a table for receiving the compactable lightweight concrete block mold from the mold feed conveyor. The system can include one or more tube extraction and re-insertion mechanisms for extracting or inserting tubes of a compactable mold. The system can include one or more end wall lock release mechanisms for releasing end walls to remove a molded block from the mold. Mold assembly and disassembly can be controlled by an electronic or computerized controller.

Abstract: A form and process for casting concrete blocks, each having at least one side textured. The blocks are cast in cavities which have a resilient insert on at least one side for imparting texture to the blocks. After the cast blocks are cured, the form is inverted and placed on a support surface. At least the side having the resilient insert is moved laterally away from the block and the form is lifted to leave the block on the support surface. The textured side can release from the form despite deep grooves and crevices simulating natural stones.

Abstract: A floating cut-off bar that follows a preselected path of travel over a mold box during a block production cycle. The floating cut-off bar may be coupled to a feed drawer whereby a mechanism allows the floating cut-off bar to engage the specified contour of a division plate in a mold box assembly and aid in material distribution by screeding excess material and delivering additional material to areas of the mold box as necessary and method of making wall blocks therefrom. The specified contour of the division plate is designed to optimally deliver material to achieve a specified uniform density of the block produced for greater structural integrity, strength and durability of the block.

Abstract: A casting machine for fabrication of precast concrete structural members, which includes side walls and end dams which are all movable from an open position to a closed position, and a bottom casting surface, where the bottom casting surface, side walls, and end dams serving to form a mold surrounding a cavity configured to contain wet concrete. Concrete is poured into the cavity when the self-releasing mold is in closed position. The side walls, and end dams are automatically movable to the open position when the concrete has solidified so that a precast concrete structural member is automatically released from the self-releasing mold. Also a precast modular system for automated concrete structural member fabrication, which includes a concrete mixing system, a concrete delivery subsystem, a block transport subsystem, and a plurality of casting machines, where each casting machine includes a self-releasing mold.

Abstract: A brick comprises a thermoplastic material, such as high density polyethylene (HDPE), and a cement-containing material. The brick may be made by mixing thermoplastic material and dry, uncured cement-containing material. This mixture is placed in a mold. The mold is heated while the mixture is compressed to melt or soften the thermoplastic material and to bind the particulate material in the mold into the shape of a brick. After the hardened brick is removed from the mold, the surface of the brick may be sprayed with water to cure cement-containing material on the surface of the brick.

Abstract: In casting concrete retaining wall blocks, a plurality of mold inserts form a passage between top and bottom surfaces of the block, a recess in the block top between the passage and the back of the block and a recess in the bottom of the block between the passage and the back of the block. The recesses and the passage are formed by a plurality of mold inserts. When the blocks are used in a retaining wall, geogrid fabric passes from the rear of the wall through one of the recesses in a block, through the passage in the block and through the other recess in the block into backfill for stabilizing the wall. The recesses and passage are designed so that any concrete flashing formed between abutting mold inserts is not contacted by the geogrid fabric.

Abstract: An apparatus and method for releasing a lens moulded in a cavity between posterior (21) and anterior mould (22) sections and adhered thereto. A post (30) is configured to support a flange (20) of the posterior section whilst the anterior section remains spaced from the post. Posterior section is compressed between a pin (40) applied to, an outer concave surface (29a) of the posterior section and the post, thereby initially releasing peripheral regions of the posterior section and subsequently the remaining portions thereof. Upon separation, the anterior section together with the lens (10) drops onto the post so that its outer convex surface (29a) rests on the post. A collar unit (50) with gas channels (53) presses against a flange (200) of the anterior section whilst blowing jets of gas towards an interface between a “monomer” ring (11) formed around the lens. In this manner, initially the “monomer” ring and then peripheral regions of the lens are separated from the anterior section.

Abstract: An injection molding machine to prevent a molded piece from being separated from a mold after molds are disassembled from each other includes a first mold, a second mold assembled with the first mold to form a cavity, and a binding device or a pressing device to get a molded piece held in the first mold when the first mold and the second mold are disassembled from each other.

Abstract: An injection molding machine is provided which prevents, when molding a molding product, a molded part not to be used as a product to be integrally molded together with a molding product to be a product from being uselessly produced and improves production efficiency. A nozzle receiving section 37 configured on a fixed mold 22 side of a cavity C formed of the fixed mold 22 and a movable mold 21 is made to slightly protrude to allow melted resin remaining at the ends of the nozzle receiving section 37 and nozzle 20 to be used as part of a molding product in the next molding cycle and it is thereby possible to prevent, when molding a thin flat molding product such as a compact disk and video disk, melted resin from being uselessly produced as a sprue.

Abstract: In a method for manufacturing slabs which are thin (10-30 mm) and broad, a cement mix comprising water, cement and a fluidizer is mixed with inert stone aggregate having a controlled particle size. The resultant mix is deposited in a predetermined thickness onto a temporary support and subjected to vacuum vibrocompression. The slab thus formed is subjected to the steps of setting and hardening by means of curing, enclosing it between two thin sheets of plastic impermeable to water vapor which are hermetically sealed along their edges. The method envisages specific measures as regards the method of mixing performed during the steps of preparation of the cement mix and mixing of the cement paste with the stone aggregrate. Other improvements concern the components of the cement paste as well as the order of introduction of the aggregate during mixing with the latter.

Abstract: The invention relates to a device and a method for producing a water barrier in unsolidified roof tile preforms. The inventive device comprises a molded piece with a recess as well as a die. The molded piece is disposed above the end of a roof tile perform, whereupon all or part of the rear edge of the roof tile perform is pressed upward by means of the die. The roof tile perform is then dried.

Abstract: The present invention provides a composition and a method of using the same to form a pattern on a substrate using imprint lithography employing dark-field polymerization. To that end, the composition includes a bis vinyl ether component, and an initiator component that produces an acid in response to radiation. The bis vinyl ether component is reactive to the acid and polymerizes in response thereto.

Abstract: The invention provides an injection molding process, in which a gate is cut off within a mold in resin molding to obtain a good gate-cut surface, as well as a resin molded product and a resin molding mold. In the injection molding process, a cutting pin, which is connected to a cutting pin working plate provided in parallel with a driving device or an ejector plate provided in a mold, slides on a mold parting line between a fixed-side block, on which corner cutting or a R shape is provided at the approach port, and a movable-side block opposed to the fixed-side block. The wall thickness of a compression shape portion opposed to the cutting pin is larger than that of a gate and a product shape portion. The cutting pin compresses a resin in this portion toward the product shape portion at predetermined timing to cut off the gate portion and integrate the resin with the product shape.

Abstract: A system for forming thin-wall pre-cast concrete forms and structures, using vertical casting and slip-form techniques to partition wet concrete into separate thin-wall sections, the system being particularly useful for fabricating pre-cast concrete column forms having a composition and vertical consistency substantially the same as the integral poured concrete core of the finished concrete column.

Abstract: The invention relates to a method for manufacturing ground slabs from a cement-bonded material or concrete, with a facing made of fine-grade or facing concrete forming the top surface of the respective slab and with a core made of core concrete forming the bottom surface by means of pressing in a mold cavity of a press mold.

Abstract: A method for forming an electronic device provides a casting master having a casting surface, and deposits a substrate material onto the casting surface to form a flexible substrate sheet of predetermined thickness, wherein the flexible substrate sheet has a circuit-side surface that is formed against the casting surface. The flexible substrate sheet is released from the master and secured against a carrier, with the circuit-side surface facing outward. An electronic device is then formed on the circuit-side surface.

Abstract: A concrete block mold division plate for front-face-up block molding. The division plate fits into a channel formed in each of the side walls of the mold. A plurality of fasteners secure the division plate within each channel and to the side walls of the mold. The division plate operates in conjunction with an optimized dry cast concrete mixture to provide acceptable control of the flatness and parallelism of the top and bottom surfaces of the blocks.

Abstract: An injection moulding assembly includes a male moulding member surrounded by a female moulding member forming a void between them that upon injection of molten plastics into the mould a container can be formed. The moulding assembly includes a guide rod and ejection flange and a pair of ejection flange guide rods, an air vent valve and an injection passage. The male member includes in this embodiment eight grooves unevenly spaced so that the partially hardened container formed in the injection mould can be pushed from the mould using the ejection flange while the container is sufficiently green to enable the ribs formed in the grooves to move over the surface of the male mould during the ejection process.

Abstract: An assembly, for stripping a medium from a mold cavity according to one embodiment of the present invention, may include a stripper shoe, a head structure, and a plunger component attaching the stripper shoe to the head structure. The plunger component may have an elongated body, a first portion with a first end, and a second portion with a second end. The second portion may be substantially perpendicular to the first portion and have an opening configured to facilitate fastening the stripper shoe to the second portion of the plunger component.

Abstract: A concrete block mold division plate for front-face-up block molding. The division plate fits into a channel formed in each of the side walls of the mold. A plurality of fasteners secure the division plate within each channel and to the side walls of the mold. The division plate operates in conjunction with an optimized dry cast concrete mixture to provide acceptable control of the flatness and parallelism of the top and bottom surfaces of the blocks.

Abstract: A dope (24) containing a solid electrolyte is cast from a casting die (81) onto a running belt (82). A casting membrane (24a) is peeled from the belt (82) as a wet membrane (25) containing the solid electrolyte. The wet membrane (25) is sent to a tenter drier (64) and dried therein to have a predetermined width in a state that both side edges thereof are held with clips (64a). The wet membrane (25) is then sent out of the tenter drier (64) as a membrane (62). The membrane (62) is sent to a drying chamber (69) and is further dried while being supported by rollers (68).

Abstract: Embodiments of the present invention teach a method for post-mold treatment of a molded article and an apparatus for implementing the method. For example, a method of post-mold treatment of a molded article is provided. The method can be implemented in a molded article receptacle. The method comprises at a first instance in time, subjecting the molded article to a first type of post-mold treatment; and at a second instance in time, subjecting the molded article to a second type of post-mold treatment.

Abstract: A concrete building block containing Portland cement, a filler, water, and a quantity of particularly sized plastic particles, such as spent abrasive particles of a thermoset plastic. The associated method of producing such blocks eliminates the need of curing the blocks in a heated humidity controlled environment in order for the blocks to attain the required water content for hydration of the cement.

Abstract: According to one aspect, the present disclosure concerns embodiments of an apparatus and method for making a wall block, such as for constructing retaining walls or fences, that has at least one surface formed with a pattern resembling the faces of multiple blocks. In particular embodiments, the surface of the wall block has a plurality of discrete surface portions that are separated by one or more elongated recessed surface portions or scores such that each surface portion resembles the face of a separate block. The surface portions can be provided with roughened surface textures resembling the surface of a split block, which can be formed by roughening or texturing the uncured block as it is removed from a mold.

Abstract: A device (1) for cooling and/or thermal conditioning of hot preforms or parisons (6), in particular of parisons for the production of blow-moulded bottles made of plastic material, limits and/or reduces the deformations of said parisons during cooling by containing the transverse deformations of the end close to the opening (8) of the parison. The device is provided with a tubular portion of prolongation which wraps totally around the parison that rests on its internal surface with one of its sections (9). Described herein is the corresponding method for cooling the parison (6).

Abstract: Injection molding method and apparatus for ejecting a molded plastic preform from a mold. A first lifting structure and/or step is configured to have an inner surface with an area for sealing and aligning with a complementary surface on a core, and to have an upper surface with an area for sealing and aligning with a complementary surface on a second lifting structure, said upper surface of said first lifting structure being configured to lift a molded plastic preform from the injection mold in a lifting direction for a first period of time, the lower portion of the molded plastic preform lying in a plane substantially perpendicular to the lifting direction. A second lifting structure and/or step is configured to have an inner surface configured to lift an outer surface of the molded plastic preform from the injection mold in the lifting direction for a second period of time, the outer surface of the molded plastic preform including structure lying in a plane substantially parallel with the lifting direction.

Abstract: This invention relates to solvents which may be used to extract polymers that are made of hydrophilic and hydrophobic monomers.

Abstract: A unitary polymer substrate having a plurality of microfibers projecting from a surface is provided. The presence of the microfibers greatly increases the surface area and can impart a cloth-like feel to the surface. The projecting microfibers may have a variety of forms, including frayed-end microfibers, tapered microfibers, microfibers having an expanded cross-sectional shape, and microfibers having a very high aspect ratio. A number of methods of producing unitary polymer structures with a plurality of projecting microfibers are also provided.

Abstract: A method of ejecting containers from a blow mold comprises the steps of: opening a blow mold containing containers, the blow mold comprising a pair of pistons having a head and a heel, an end cap disposed behind the heel, and a pair of ejector rods, each ejector rod coupled to a different piston; simultaneously with the opening forcing a fluid against each head of each of the pair of pistons, extending each of the ejector rods to maintain contact with an opposite side of a center portion of the containers in the blow mold and pushing the containers from the blow mold; and forcing a fluid against the heel of each of the pair of pistons operative to retract the pair of ejector rods away from the containers when the containers are separated from the blow mold.

Abstract: An apparatus for the continuous and nondestructive production of plastic panels which are provided with undercut anchoring studs, web profiles or other forms of attachment (28) on one or both surfaces comprises a temperature-controlled chill roll (11), which has peripheral cooling bores (15) in the roll body (17). The roll body (17) is formed at the circumference as a polygon with flat supporting surfaces (25), against which the molding/demolding strips (13) are placed or from which they are lifted. The molding/demolding strips (13) are moved by means of piston/cylinder arrangements (16) and piston rods (18). The piston rods (18) move through transverse bores through the roll body (17). The melt is filled into molds (27) of the molding/demolding strips (13) by the counterpressure between the shaping roll (11) and a counterroll (10) and is cooled down. During the filling of the molds (27), the molding/demolding strips (13) are pressed against the flat faces of the roll body (17).

Abstract: A method for manufacturing a polyimide sleeve where a polyimide sleeve of a high quality can be manufactured easily with a superior yield. A sleeve of a release resin is fitted on a planished metal core or a core at least whose outer surface is made of a release resin, and a polyimide precursor solution is applied on its outer surface. Next, after generating an imide reaction of the polyimide precursor by heating to form an almost completely cured polyimide sleeve, this polyimide sleeve is removed from the core together with the sleeve of the release resin. Furthermore, the polyimide sleeve is separated from the sleeve of the release resin.

Abstract: A method to create blocks having a weathered and aged look by modifying the blocks before they are cured. Green blocks exiting a block forming machine are conveyed along a path past brush elements which scrub block mix from the upper longitudinal corners of the formed, uncured blocks. The blocks are also passed longitudinally over tooth elements which irregularly remove block mix from the lower longitudinal corners of the green blocks. The modified green blocks are moved to a kiln for curing.