Abstract: A method of injection molding a layered plastic component includes providing a sealing structure around the periphery of a mold cavity formed between first and second mold halves to contain plastic material in the cavity during injection. The first and second mold halves are closed to a first gap therebetween. A first plastic material is injected into the cavity. The first and second mold halves are closed together to a full closure position to compress the first plastic material. The first and second mold halves are held together for a period of time sufficient to partially solidify the first plastic material. The first and second mold halves are opened to a second gap therebetween, and at least one stop member is moved into position between the first and second mold halves.

Abstract: A plastic trial lens having a grip portion gripped when the lens is set in trial frames for trial lenses, an injection molded product for making the trial lenses, and a mold assembly for molding the injection molded product are provided. In the injection molded product molded by means of the mold assembly in an injection compression molding machine, a grip portion and a liquid guided and collected area are molded simultaneously with a lens portion on a periphery of the lens portion. When the injection molded product is dipped into hard coat liquid, the hard coat liquid is guided in the liquid guided and collected area to drip down and the remaining liquid without dripping down is collected in the liquid guided and collected area, thereby forming a coating film of uniform thickness on the lens portion. The plastic trial lens which is integrally provided with the grip portion is finished after the liquid guided and collected area is removed.

Abstract: Systems for the manufacture of reinforcing preforms for structural composite products. The robotic application system allows use of a single robot in a multiple cell system, and provides offline programming of the robotic routine. The robot moves between the cells on a track system.

Abstract: Mold press apparatus for use in the manufacture of molded articles, particularly starch-bound containers and other articles. The mold press apparatus includes a planar array of female mold halves and a corresponding planar array of male mold halves. The planar array of mold halves remain substantially coplanar throughout the process of selectively mating and separating the male and female mold halves. When used to manufacture molded articles from aqueous starch-based compositions, the molds are equipped with venting means, such as vent holes and/or a vent gap, which allow for the escape of water vapor from the mold cavities defined by the mated male/female mold pairs. A suction removal system may be used to remove the molded articles from the mold press apparatus, typically from the female mold halves. The demolded articles are deposited on a conveyor system equipped with individual nests for each article.

Abstract: An apparatus for rotational molding provides a mold having first and second mold components defining therebetween a mold cavity. The first mold component includes a mold insert adapted to translate toward the second mold component. A spring-biased latch mechanism restrains the mold insert in the outward disposition, and a touch pad is struck to trigger the latch mechanism and urge the mold insert inwardly while the mold is rotating. With the mold insert latched in the outward disposition, the rotational mold charged with thermoplastic material rotated biaxially and heated. After heating, while the mold assembly continues to rotate, the touch pad is struck to release the latch and cause the mold insert to move inwardly. The mold insert includes structural features that are moved more proximate to opposed mold portions.

Abstract: A mold includes a cavity and a core which define a space in which an optical attenuator and supporting portion are formed. The includes a core pin, movably located in the core element. The core pin has a proximal end defining a surface of the lens portion and a distal end remote from the molding space. A core pin motor is coupled to the core pin, through a number of intermediate elements, so that the core pin can be moved relative to the core element to adjust a thickness of the lens portion. The intermediate elements can include a ball screw, a ball screw end cap fixed to a core pin holder block, a ball screw nut fixed to an outer surface of the mold so that an outer end of the ball screw passes through the nut to a location outside the mold.

Abstract: A method of maintaining as well as restoring the condition of weathered asphalt shingles and strips which are applied to flat roofs, pitched roofs, or vertical walls. The process involves applying resaturant neat or as a water emulsion. Suitable resaturants include fatty acid methyl esters, petroleum distillates, and water emulsions thereof. The process restores the suppleness and softness of the weathered shingles or strip and adds about three years to the lifetime of the roof. The process may be repeated for additional lifetime extension.

Abstract: The invention relates to a spinning line for producing a plurality of endless synthetic filament yarns. The spinning line comprises a spinning apparatus for melt spinning the yarns and a takeup apparatus for winding the yarns. Between the spinning apparatus and the takeup apparatus, a yarn collection device is arranged which cuts and removes the yarns by suction upon occurrence of a disturbance in the yarn path of at least one yarn. To this end, the yarn collection device comprises a movable yarn guide with a yarn guide groove in the yarn advance plane, a cutting device, and a suction device. The cutting device and suction device are arranged in the yarn advance plane on one side of the yarn web. The yarn guide is arranged on the opposite side of the yarn web and moved in direction of the cutting device for cutting the yarns.

Abstract: A method of making terrazzo floors with design inlays. The method utilizes pre-molded inserts as inlays in the finished floor, and generally includes four steps. First, inserts are pre-molded, which has design elements in terms of their color, nature of inclusions (chips, glass fragments, etc. and their colors), shape and/or a pattern of grooves in their upper surfaces. Second, the pre-molded inserts are placed on and affixed to the sub-flooring in a predetermined arrangement. Third, epoxy flooring mixture is poured to a height that fills the grooves in the inserts' upper surfaces and preferably cover the inserts. Fourth, the floor, after cured and hardened, is ground and polished to expose the upper surfaces of the inserts, which now become seamlessly integrated inlays within the overall finished floor.

Abstract: An extruder apparatus has an extruder flow channel 10 for an extruder head having 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: A pair of templates form a mold for substantially flat biological membranes to shape the membrane into a configuration that, after trimming of excess tissue, is adapted for forming a replacement aortic, pulmonary, tricuspid or mitral heart valve. Each template has three members joined to another laterally, with each member configured to form, together with its mating member, the mold for one leaflet or cusp of the replacement heart valve. The negative template has concave surfaces for each member and the positive template has convex surfaces which mate with the concave surfaces of the first template. Each of the templates is made of thin, shell like material and has beveled edges. The biological membrane is placed between the mating convex and concave surfaces of the two templates assembled to one another to form the membrane into the configuration of the three leaflets of the replacement heart valve.

Abstract: In an internal core lifter for molding and ejecting plastic parts, a core blade having a first and second end section is provided. The first end section is configured to cooperate with a mold used to produce the plastic parts and includes undercut forming portions to produce undercuts in a finished plastic part. At least one mounting member is coupled to the second end portion of the core blade and extends outwardly therefrom. A bracket mountable to a mold ejector plate slidably and pivotally receives the mounting member, thereby coupling the core blade to the bracket.

Abstract: A mold assembly for forming an ophthalmic lens article includes a first mold and a second mold. The first and second molds are assembled together to define a mold cavity therebetween having a profile corresponding to that of the ophthalmic lens article to be formed. The mold cavity is filled with a polymeric material which is polymerized to form the ophthalmic lens article. At least one of the first and second molds is a resin mold which is formed from a resin material, and a portion of at least a molding surface of the resin mold is directly irradiated with UV radiation so as to provide a UV-treated surface. The ophthalmic lens article formed in the mold cavity is held on the resin mold such that the ophthalmic lens article adheres to the UV-treated surface upon separating the first and second molds away from one another.

Abstract: An apparatus for meltblowing 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 and further includes air discharge passages for impinging the discharged multi-component filaments with pressurized air.

Abstract: An injection molding machine includes a plasticating unit for plasticating a thermoplastic resin, and an injecting unit connected to the plasticating unit through a connecting passage to inject the plasticated resin into a mold. The injecting unit A includes a rotary pump having a suction port connected to the plasticating unit through the connecting passage and a discharge port connected to the mold. The plasticated resin is intermittently injected into the cavity of the mold through the injection port by means of the rotary pump. In the connecting passage, an accumulator is provided which reserves the resin plasticated in the plasticating unit in an amount equal to or more than the shot capacity, and feeds the resin to the rotary pump.

Abstract: A noodle-making machine comprises a motor, a cylindrical casing, a screw disposed rotatably inside the cylindrical casing, a perforated nozzle plate provided at an end of the cylindrical casing, and a hopper attached to the casing. A groove is formed inside one end of the casing. The nozzle plate has a recess portion formed therein. A coupling formed of female and male coupling members is provided to connect the motor to the screw.

Abstract: The invention relates to repair devices for repairing impact resistant glass such as windshields and vertical glass. The repair device can be used to repair many types of damage to glass including cracks, bulls-eye breaks, star breaks, and angle wing breaks. For repairing breaks, the repair device removes air from the break before the resin is applied to the air-evacuated break. For repairing cracks, the repair device pushes resin into the crack while the device is slid along the crack. The repair device has a piston assembly including a piston, a piston casing, and a piston casing receiver; a mounting bracket; and a suction unit, including a manual vacuum pump. A resin is loaded into the piston assembly and delivered to the break or crack by hydraulic pressure, pneumatic pressure, and/or vacuum mode.

Abstract: A device for the extrusion of plastic profiles with an extruder for the melting and delivery of a plastic material and with an extrusion die for defining the profile geometry, wherein a profile slot corresponding to the profile to be extruded and being defined by an outer periphery and by at least one arbor is provided in the extrusion die. The profile tuning is made easier by having a means for operational change of the profile slot's thickness provided in at least one predetermined area between the arbor and the outer periphery as well as a means for cooling selected areas of the extruded profile provided at the exit of the die.

Abstract: An apparatus for fabricating bichromal elements comprising a separator member having a central rotating point, the separator member having first and second spaced apart, opposed surfaces with an edge region in contact with both of said opposed surfaces. The spacing between the opposed surfaces varies with the distance outwardly from the central rotating point such that the spacing is the largest at the central rotating point and the spacing decreases outwards from the central rotating point and the spacing is a minimum at the edge region. Further each of the opposed surfaces has a substantially annular cup spaced apart from and substantially surrounding the central rotating point.

Abstract: The invention provides a molding apparatus and particularly a corrugator for manufacturing pipes, particularly corrugated pipes, having at least two series of circulation mold jaw parts, which form a molding channel in a predetermined area, and wherein the series are guided in respective circulation guides. The invention further provides that at least one exchangeable mold jaw parts or mold blocks is provided with another pipe molding wherein at least one exchange member is provided along at least one of the circulation guides of at least one of the mold jaw part series.