Abstract: A gas-assisted flow and filling device for transporting particulate material and filling die cavities includes a source of low-pressure gas for delivering gas to a chamber that is separated from a fluidizing chamber by a porous distributor plate which permits the gas to flow through the particulate material and out a vent screen so that the particulate material is permitted to flow out of the fluidizing chamber essentially free of gas and wherein the pressure of the gas delivered to the fluidizing chamber is sufficient to provide a gas bearing to said particulate material adjacent the distributor plate, but not high enough to cause turbulence in said fluidizing chamber.

Abstract: A removal apparatus is provided which includes a travelling frame, first and second carriages provided on the travelling frame, first and second cross frames provided on the first and second carriages, first and second cross carriages provided on the first and second cross frames, first and second vertical units provided on the first and second cross carriages, and first and second chucking units secured to the first and second vertical units. In addition, a control unit is provided for synchronously controlling the movement of the first and second carriages, the first and second cross carriages, and the first and second vertical units so as to enable the first and second chucking units to be moved in three dimensions for removal of a molded product from a molding machine.

Abstract: A tapered running block and corresponding tapered cavity blocks are utilized in a mold for fabricating relatively thin, flat plastic cards, such as used for pre-paid telephone cards and the like. The mating surfaces of the runner block and the cavity block are angularly tapered; so that metal-to-metal contact is made between the runner block and the cavity block when the mold is in the plastic injection position. As soon as relative movement of the runner block and the cavity block is effected to part the blocks and separate the cards from the runners, the tapered 1surfaces move away from one another without any sliding contact, thereby significantly reducing wear in the mold.

Abstract: The present invention includes an apparatus for making a magnetically readable card. The apparatus includes a mechanism for providing a polymeric extrudable substrate material and one or more magnetic strips. The substrate is extruded in an extruder. The apparatus also includes a mechanism wherein the magnetic strips are aligned and coextruded with the polymeric substrate in the extruder to form a continuous length of magnetic strips and polymeric material.

Abstract: A golf ball having a cover composed of a polyurethane formed from a p-phenylene diisocyanate (PPDI) based polyurethane prepolymer is disclosed herein. The PPDI-based polyurethane prepolymer is formed from a PPDI and a polyol such as polycaprolactone. The PPDI-based polyurethane prepolymer is cured with a curative such as a 1,4 butane diol and glycol. The PPDI-based polyurethane cover may be either thermoset or thermoplastic. The PPDI-based polyurethane cover has a high flexural modulus at a lower hardness which gives a better feel yet maintains good distance, higher Bashore resilience, higher tensile strength, higher tear resistance, improved elongation, and better playability and control. These benefits and improvements are exhibited even though the cover of the present invention is thinner than those of conventional golf balls. The present invention also provides new golf balls having durable thin covers thereby enabling golf balls with large cores.

Abstract: A method and apparatus for compression molding plastic articles such as closures include a plurality of tools mounted in opposed pairs with the tools of each pair including opposed male and female mold sections. The tool pairs are mounted for motion in an endless path. The tool pairs and associated mold sections are closed during motion in the path for compression a molding charge in the mold cavity formed between the mold sections of each pair, and opening the mold cavity to release an article formed between the mold sections. A latch mechanism is associated with each pair of tools for holding the tools and mold sections in the closed position during motion in the path independent of the mechanism for closing the tools and mold halves. In this way, forces imparted to the mold halves and tools to hold the mold closed are isolated from the machine frame. The latch mechanism is selectively unlatched to permit opening of the mold halves and release of the article compression-molded between the mold halves.

Abstract: There are provided a disc-manufacturing mold capable of manufacturing a disc substrate having no irregularities in thickness in its circumferential direction and a disc manufacturing apparatus using the mold. The disc-manufacturing mold is used for forming a disc substrate by injection molding. A cooling water ditch is arranged on the mold. The cooling water ditch is configured such that a disc distorts substantially evenly in its circumferential direction when the disc is manufactured.

Abstract: A three piece nozzle assembly for injecting molten plastic in an injection molding machine carrying out a high pressure, high volume continuous molding process to mold thin walled parts. A nozzle housing has an internally threaded dual diameter bore in one end which receives in one bore portion an externally threaded shank of a nozzle. A sleeve is threaded into the other bore portion and is tightened adjacent to a flange on the nozzle shank to lock the nozzle to the housing and prevent the pressure of the injection molding from working the nozzle loose from the housing. A gap is formed between the sleeve and nozzle shank to reduce the thermal effects.

Abstract: A kit of parts useful for sealing a crack in a concrete surface by injecting a sealing material into the crack including a plurality of injection port members and deformable metal crimping sleeves. Each injection port member has a flat base which is attached to the concrete surface by a settable adhesive compound. A disposable, aerosol-charged, supply container having a one-component polyurethane prepolymer without any granular material entrained therein.

Abstract: A middle liner of a slide guide device for a machine press has a spherical shaped side which fits into a sliding gib attached to a slide. The middle liner slides along a fixed gib at first and second linear surfaces that are at an angle with each other. The combination of self-alignment and smooth movement of the slide is achieved in the presence of an eccentric load acting on the slide. A machine press equipped with such a slide guide device has excellent eccentric load resistance and high working precision. In a further embodiment, a press machine is further equipped with a knockout device having knockout block moving between a pair of guide rails. A plurality of middle liners, each having at least one spherical surface, are positioned between the knockout block and the guide rails. The resulting knockout device provides a stable knockout load with low noise and low energy consumption.

Abstract: An apparatus for sealing at least a portion of the urinary tract to prevent the unwanted discharge of urine includes a body member with a tubular member, encircled along its length by an overcoat layer, that encases a fluid, forming a cavity. The body member, with its tubular member and overcoat layer are elastically deformable from an initial “rest” or “relaxed” state, when outside of the body, where at least a portion of the overcoat layer is of a diameter equal to or greater than that of an undilated urethra. A stylet may be placed into the tubular member to serve as a guide, for elongation of the body member and to provide rigidly to the body member upon insertion into the urinary tract. There is also disclosed a method for making the apparatus of the present invention.

Abstract: A method of forming a soft casing sleeve having multi-colored and raised decorations is provided.

Abstract: An energy efficient drive system is provided for use on typical injection molding machines whereby a single electric motor drives both the extruder screw and a hydraulic motor that continuously charges a hydraulic accumulator during the extrusion process. During the injection cycle, the charge in the accumulator is directed to stroke the extruder screw and inject melt into the mold cavities. Another embodiment utilizes a similar arrangement on the clamp mechanism of the injection molding machine whereby the charge in the accumulator is directed to hold the mold closed during the injection cycle.

Abstract: An extruder flow channel 10 has a pair of flow passages 40, 50 and a flow dam 12 interposed between the flow passages and a flow splitter 14 that locally increases or locally decreases the flow area of the first flow passage 40 relative to the second flow passage 50. The preferred flow channel 10 adjusts the mass balance of the flows 6, 7 between passages 40, 50 automatically.

Abstract: An apparatus for extruding multiple types of liquid materials into multi-component filaments. A pair of outer manifold elements sandwich an intermediate manifold element. Respective channels are formed between opposing sides of the outer manifold elements and the respective opposite sides of the intermediate manifold element. These recesses form channels which diverge or widen away from associated inlets at the top of the manifold assembly. A die tip is coupled to the manifold assembly at a lower side and communicates with the outlets of the channels. The die tip includes a combining member for producing a desired multi-component filament configuration.

Abstract: A hybrid injection molding machine that has the capability to draw a decorative or fabric sheet into a mold cavity prior to injection into the mold has opposing male and female mold parts. At least one of the mold parts has an insert formed from a porous metal so that a vacuum may be drawn through the insert in order to draw the fabric sheet into all aspects of the insert cavity so that plastic may then be injection molded into the cavity of the mold.

Abstract: A die and a die assembly are disclosed for use in association with an underwater pelletizer. The die has unique coiled heating elements which allow for uniform heating of the extrusion orifices which pass through the die, reducing or eliminating polymer solidification within the die, thereby allowing the manufacture of uniform pellets of a specific geometry. The heating elements are contained within the die plate of the die, and in a preferred embodiment occupy annular grooves formed therein which are concentric with the extrusion orifice pattern. The die assembly includes thermally-insulating adaptors and gaskets which cover the annular grooves containing the heating elements.

Abstract: A die head assembly for producing meltblown bicomponent fibers in a meltblown apparatus includes a die tip detachably mounted to an underside of a support member. The die tip has a row of channels defined therethrough terminating at exit orifices along a bottom edge of the tip. The channels receive and combine first and second polymers conveyed from the support member. A recess is defined along the top surface of the die tip and defines an upper chamber for each of the die tip channels. A plurality of breaker plates is removably supported in the recess in a stacked configuration. An upper one of the breaker plates has receiving holes defined therein to separately receive polymers from supply passages in the support member. The remaining breaker plates have holes defined therethrough configured to divide the polymers into separately polymer streams and to direct the polymer streams into the die tip channels, the number of polymer streams corresponding to the number of holes in the lowermost breaker plate.

Abstract: Method and apparatus of forming articles includes a press having a pair of opposite platens. An articulated clamping frame is mounted between the platens, each of which are moveable toward and away from the clamping frame. Material to be formed is clamped into the clamping frames and the articulated clamping frame is wrapped around the die as the die forms the material. The formed article is extracted from the die by moving the clamping frame away from the die.

Abstract: A resin extrusion apparatus having a weighing device (11) connected to a controller (18). A powder container (12) for supplying a powder (Y) to a resin extruder (20), a screw (13), and a motor (14) are installed over the weighing device 11. The motor (14) rotates a powder feeder (10) in proportion to a frequency of an inverter (17) connected to the controller (18). The powder feeder (10) is installed on the resin extruder (20). The powder feeder (10) supplies the powder (Y) to the resin extruder (20) quantitatively by a feedback control that is executed at regular intervals. The resin extruder (20) heats and kneads the powder (Y) and a resin (X) supplied thereto from a hopper (21) to form a resin pellet P containing the powder (Y) and the resin (X) mixed uniformly with each other.