Abstract: A quick change mounting for each plug assist in an array of plug assists, carried by a base plate in a thermoformer apparatus includes a boss projecting from an anchor piece attached to the base plate and a base piece attached to each plug assist, each base having a bore slidably receiving a boss. Each boss has a cross pin with projecting ends each which being received in respective axial slot in the associated base piece, a circumferential clearance space extending from the end of each axial slot allowing rotation of the plug assist, the pin ends each releasably held at the end of a circumferential space by a detent.

Abstract: Device for introducing a coating into pipes and pipe bends and, more generally, into rotationally symmetrical bodies open at only at least one end, with an elastic, elongate, inflatable core (12), the so-called “variocore”.

Abstract: A process for manufacturing multilayer pellets having a core-sheath structure with a molding material forming a sheath which covers the outer circumference of another molding material forming a core, which includes (a) supplying the core material and the sheath material to a die extruder having multiple extrusion-forming parts arranged along a circumference, (b) extruding multiple multilayer strands from the extrusion-forming parts by covering around the outer circumference of the core material concentrically with the sheath material, and (c) cutting the extruded multilayer strands to manufacture multilayer pellets.

Abstract: A guide block assembly is provided for retaining fiber bore forming pins and guide pin bore forming pins in precise relation to each other during the molding of a ferrule used in a multi-fiber connection. The assembly may include a top portion and a bottom portion with corresponding fiber and guide pin bore grooves formed on a surface of the top and bottom portions. When the top and bottom portions are assembled, the corresponding fiber and guide pin bore grooves form fiber and guide pin bores, respectively. The assembly may also include another portion that form additional bores with either the top or the bottom portion. A method of fabricating and aligning the guide block assembly is also disclosed.

Abstract: A slider mechanism (1) for an injection mould comprising a core (5) which is insertable into a cavity (20) defined by mould halves (12) of the mould. The slider mechanism (1) has a body (2) which supports the core (5). The invention is characterised by a drive device (3), and a connection (4) between said body (2) and said drive device (3). The connection (4) is adapted to convert a rotary motion of the drive device (3) into a translational motion of the body (2). The invention also concerns an injection mould comprising such a slider mechanism as well as the actual slider.

Abstract: A rustication for preparing reveal bands in a precast panel surface. The rustication is made from a one piece elongate body of extruded foam and comprises an upper surface, a lower surface and laterally-spaced sidewall surfaces that extend between the upper and lower surfaces. The lower surface defines a base plane. One or more downward-extending edges that project below the lower surface base plane are included such that they can bend under the application of a load, such as when concrete is poured around it to form the precast panel. Under such a load, the edge scrapes along the top of a panel-forming surface so that an enhanced sealing engagement between the panel-forming surface and the rustication is effected. The rustication can further include a plurality of longitudinally-spaced apertures that extend from the upper surface to the lower surface to facilitate the securing of the rustication to the panel-forming surface, thereby precluding rustication shift once the concrete is poured.

Abstract: Apparatus for manufacturing ceramic articles comprising two outer female moulds (22, 122; 24, 124), having co-operating mating faces (30, 130; 32, 132) and a male mould (34, 36, 160, 166) arranged, in use, to be disposed between the female moulds (22, 122; 24, 124), wherein the female moulds (24, 122; 24, 124) are arranged to be relatively movable in a direction substantially perpendicular to the plane of the mating faces (30, 130; 32, 132) thereby permitting the female moulds (22, 122; 24, 124) to form a seal against the male mould (34, 36, 160, 166) and two corresponding parts of an article to be cast the male mould to be removed and the two parts to be joined.

Abstract: A casting mould made of porous material for forming sanitary appliances, including a plurality of profiled parts which are coupled together to define a casting cavity mould said parts being separable from each other for removing a formed appliance from the mould, means for introducing a slip into the mould cavity at least one insert member cooperating with said mould parts to form at least one undercut region in said appliance, wherein said at least one insert member is associated with one of said mould parts by way of a support unit located inside the casting cavity and comprising two mutually movable members, one of which is fixed and secured to one mould part, and the other movable member supports said at least one insert member and is able to move between a first, casting position in which it arranges said at least one insert member in the configuration which enables it to shape said at least one undercut region, and a second, removal position in which it disengages said at least one insert member from sa

Abstract: A molding machine for a concrete mix includes a frame with a vibratible mold having a vertical through cavity with hollow cores extending downwardly in the mold cavity. A pallet receiver with a pallet thereon is movable upwardly to close the bottom of the cavity. Core tops have openings therein and ventilation pins are receivable to block air passage through the core top openings when the pallet is in mold closing position. Cups with bottom openings are in the cores below the top openings to receive and guide the pins and passageways around the pins permit suction-braking air to move past the pins to the cup bottom openings when the pins move downwardly away from the core top openings.

Abstract: An adjustable core pin, and method of use thereof, for molding vials for use in levels, including an elongate rod with a barrel-shaped distal section having a crest at its cross section with the greatest diameter and a rod retainer with a cavity which receives the rod such that the distal end of the rod projects from a rod retainer distal opening, the rod being adjustable in relation to the rod retainer so that the crest can be adjustably placed at a preferred position in a molding cavity for vial molding.

Abstract: An extrusion die for a hollow member includes: a male die for defining a plurality of hollow portions of the hollow member, the male die including an annular base portion and a bridge portion bridging the annular base portion; a female die for defining an outer peripheral portion of the hollow member, the female die being fitted in the annular base portion; and a mandrel having a plurality of forming protrusions, the mandrel being inserted and held in a mandrel holding slit formed in a center of the bridge portion in a fore-and-aft direction. The mandrel includes a mandrel main portion divided into a plurality of divided members and a plurality of rigid pins each arranged in a fore-and-aft direction of the mandrel main portion, and wherein the rigid pins are pinched by and between the divided members of the mandrel main portion with tip portions of the rigid pins protruding from an front end of the mandrel main portion, whereby the tip portions constitute the forming protrusions.

Abstract: A molding device is provided for molding a blower fan that has a center member embedded in a center portion of the fan. The molding device comprises a pair of molding dies which define therebetween a shaped cavity when properly coupled; and an insert die fixed to one of the pair of molding dies in such a manner that at least a part of the insert die is exposed to a shaped cavity that is produced when the molding dies are coupled. The insert die includes a base block secured to one of the pair of molding dies; a cylindrical holding bore defined by the base block; a plurality of cylindrical eccentric members having eccentric through bores whose eccentric degrees are different from one another, each eccentric member being sized to be intimately received in the cylindrical holding bore; a positioning structure that establishes angular positioning of the cylindrical eccentric members.

Abstract: An apparatus for injection molding multi-colored plastic lures, utilizing an openable mold into which a mold mandrel is pivotally inserted between a pair of mold plates. A separator bar is selectively positioned between an injection and a joining position. In the injection position the separator bar separates an adjacent and a successive element of a multi-element cavity permitting communication of a selected plastic source with an adjacent element, while preventing communication with a successive element. In a joining position the separator bar permits communication between the adjacent element and the successive element, while preventing communication with the selected plastic source. Pivotally inserted, axially extensible mandrels define an inner article form and extract the formed lures from the mold cavities when the process is completed.

Abstract: A system for molding optical attenuators that have a lens portion and a supporting portion includes a molding machine containing a mold, an extractor robot and optical inspection portion, and a controller that assesses the inspection information and send control signals to the molding machine and mold. The mold includes a cavity and a core which define a space in which the supporting portion and the attenuator are formed. The cavity and core are separable from each other by an actuating motor of the molding machine subsequent to each injection cycle to permit removal of each molded optical attenuator. The mold also 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.

Abstract: A rustication for preparing reveal bands in a precast panel surface. The rustication is made from a one piece elongate body of extruded foam and comprises an upper surface, a lower surface and laterally-spaced sidewall surfaces that extend between the upper and lower surfaces. The lower surface defines a base plane. One or more downward-extending edges that project below the lower surface base plane are included such that they can bend under the application of a load, such as when concrete is poured around it to form the precast panel. Under such a load, the edge scrapes along the top of a panel-forming surface so that an enhanced sealing engagement between the panel-forming surface and the rustication is effected. The rustication can further include a plurality of longitudinally-spaced apertures that extend from the upper surface to the lower surface to facilitate the securing of the rustication to the panel-forming surface, thereby precluding rustication shift once the concrete is poured.

Abstract: A device for producing an opening or cavity in the side of a ceramic product during product molding in a mould with a molding cavity delimited by a molding surface which has a window, comprising a deformable punch, joined on the window, designed to project into or retract from the molding cavity, with the ability to vary its rigidity. The device comprises punch shape variation differential constriction means and actuator means for punch deformation, which together produce a controlled anisotropic punch deformation, which makes the punch project into the molding cavity.

Abstract: An injection mold inner core die is disclosed that uses no additional moving parts and decreases fabrication time required for injection molded pieces such as airbag covers. The injection mold inner core die allows for cost effective revising and re-tooling of the die. The inner core die includes one or more window mold members that extend from the surface of the inner core die. The window mold member is shaped to form a window in solidified injection mold material once the mold is closed. The window mold member includes a pair of parallel ramps that provide a pair of inclined planes for separating material contacting the surface of the inner core die. The inclined planes created by the ramps allows the material to travel up the ramps and frees the material from the window mold member. The ramps run from the surface of the inner core die to the top of the window mold member in a direction in which the molded piece is to be automatically moved for removal from the inner core die.

Abstract: A method of forming a curved hose and a mandrel for forming a curved hose is disclosed. A hose length is inserted onto a multi-legged mandrel to form a curved hose. The mandrel has at least two legs and the opposing ends of the hose are placed on the mandrel legs such that a portion of the hose is unsupported by an internal mandrel. The unsupported portion of the hose may be straight or may be looped to form a more complexly curved hose. The unsupported portion of the hose may also be held in position by an external mandrel.

Abstract: A manufacturing apparatus for multi-fiber optical ferrule includes a spacer whose hardness is equivalent to or higher than the hardness of pins for forming fiber holes. Further, corner portions with respect to the arrangement direction of the pins for forming fiber holes of the spacer are formed as inclined surfaces or rounded surfaces.

Abstract: The side walls of a mold have recesses in each of which is mounted a mold core for forming depressions on the outer side of a concrete block which is to be produced in this mold. The mold cores are pivotally supported around a horizontal axis which is parallel to the mold walls on the outer side of the mold. A sloping cam slot on each mold core is used to pivot the mold cores into the mold cavity defined by the mold walls and then back into the recess. The inner edges of a recess closely fit the mold core and function as strippers which self-clean all surfaces of the mold core which have come into contact with the concrete when the mold core is pivoted back into its recess. As a result, time intervals for cleaning the mold cores are greatly lengthened and a clean and smooth surface of the finished concrete block is insured.

Abstract: A system and method of cooling glassware molds by directing liquid coolant to the blank or blow mold halves of a glassware forming machine through an enclosed pivotal rotary union-type structure. A coolant manifold is carried by each pivotal mold arm, and communicates with coolant inlet and outlet ports at the lower end of each mold part. The manifold is connected by a floating shaft seal and a rotary union assembly and a crank arm to a coolant source and coolant return in the section box of the associated machine section. Each pivotal connection—i.e., between the section box and the crank arm, between the crank arm and the rotary union assembly, and between the rotary union assembly and the floating shaft seal—comprises a bi-directional rotary union for feeding liquid coolant to the manifold and mold parts, and returning coolant from the manifold and mold parts.

Abstract: Preferred embodiments relate to methods and apparatus for making articles made of polyester, preferably virgin polyethylene terephthalate (PET), having coated directly to at least one of the surfaces thereof one or more layers of recycled or post-consumer PET and one or more layers of a material with good gas-barrier characteristics, preferably silicon oxide. Preferably, the recycled PET layer comprises about 25% to about 50% of the entire material content. Preferably the articles take the form of preforms and the containers are blow-molded therefrom and the barrier layer is subsequently applied. The preferred barrier materials have a lower permeability to oxygen and carbon dioxide than PET. In addition, the neck of the preforms and bottles is at least partially in the crystalline state and the body is primarily in the amorphous or semi-crystalline state.

Abstract: A wax pattern mold and molding process are disclosed for forming a wax pattern of a hollow, thin walled object, in particular, a golf club head. A mold is provided in at least two halves defining a mold cavity. A core made up of a plurality of interfitted parts is placed in the mold to precisely define the thin walls. The core and mold are provided with a registration channel such that the core is properly registered in the cavity to ensure dimensional integrity of the thin walls. Pins, holes, slots, and fingers are provided to lock the core parts together while the wax pattern is formed and to permit the core parts to be disassembled through an opening in the mold without separating the mold halves.

Abstract: A dispenser 10 for use in dispensing liquid or solid material. The dispenser 10 includes wall portions forming a sealed first chamber 18 containing the material and wall portions forming a second chamber 20 and a molded, rupturable membrane 34 disposed between the first chamber 18 and the second chamber 20. The rupturable membrane 34 is preferably a circular disk with a series of molded radial depressions 40 or weld seams 40 extending from a center point of the disk. When pressure is applied directly to the membrane 34, the membrane 34 is fractured along the depressions 40 or weld seams 40. A method is provided for forming the dispenser 10 by injection molding.

Abstract: A liquid container includes a drop dispensing tip with a hollow stem which defines a liquid passageway and an interior partition wall in the passageway. The partition wall separates the liquid passageway into an upstream chamber and a downstream chamber. Flow communication between these two chambers is provided by a liquid passage in the partition wall. The liquid passage guides liquid against an impingement surface in the downstream chamber from which the liquid is dispensed dropwise.

Abstract: The present invention relates to a retractable pin assembly for an injection mold. One end of the retractable pin is inside the mold, while the other end extends outside of the mold cavity. The inside end of the retractable pin may by shaped to conform with the shape and texture of the mold cavity wall. The retractable pins are moved in and out of the mold cavity by cams that rotate around the injection mold.

Abstract: The present invention relates to a seal pin indexed precisely in a resin transfer molding die to assure the desired resin-to-fiber ratio in the mold part, and, thereby, to produce reliably and consistently a part of minimum weight with adequate strength. The index/resin seal pin of the present invention for RTM mold dies is novel in that it provides the seal (via replaceable O-rings) on the threaded stem of the pin to prevent low viscosity resin from invading the threads, bolts pins, or other elements of the internal mandrel. The pin allows the entire inner mandrel to be enclosed and sealed within the mold cavity, simplifying the sealing system. The invention also relates to a method for using the seal pin in a resin transfer molding process.

Abstract: A fabrication method and forming mold for multi-fiber optical connector ferrules uses X-ray LIGA technology to integrally form a plurality of fiber bores and guide bores in an aligning mold in an array manner with great precision of bores size and alignment positions. Then a plurality of fiber pins and guide pins are engaged with the fiber bores and guide bores to form the mold core. The mold core is then housed between a pair of side walls and an upper mold and a lower mold for injection molding process. The ferrules thus may be produced with great precision.

Abstract: A guide block assembly is provided for retaining fiber bore forming pins and guide pin bore forming pins in precise relation to each other during the molding of a ferrule used in a multi-fiber connection. The assembly may include a top portion and a bottom portion with corresponding fiber and guide pin bore grooves formed on a surface of the top and bottom portions. When the top and bottom portions are assembled, the corresponding fiber and guide pin bore grooves form fiber and guide pin bores, respectively. The assembly may also include another portion that form additional bores with either the top or the bottom portion.

Abstract: A wind tunnel blade (30) connected to a base (32) and held in position by a two-piece cuff (34). The wind tunnel blade (30) is formed in a resin transfer molding process in which central, fore, and aft foam core sections (70, 72, 74) are placed together to form the wind tunnel blade (30). Radius fillers (120) are used to fill the gaps between the outer edge of the foam core sections. The radius fillers (120) used in the wind tunnel blade (30) are formed by a braided sleeve (122) surrounding a number of unidirectional tows (124). A tip (68) is formed separately from the rest of the wind tunnel blade (30) and is glued to the top thereof Stacked layers of braided fibers (100) are used to reinforce the central core section (70).

Abstract: This invention relates to a foam molded part made of a soft foam-like material, in particular for an upholstery element of an automotive seat. The foam molded part has at least two spatially separate zones which are designed in one piece, each preferably having different material properties.

Abstract: A single piece battery jaw and method and apparatus for producing the same employs a stack molding type machine with material injection from the platens. The apparatus can effectively injection mold a one-piece jar with a straight side wall or an undercut side wall. Zero draft capability is also provided. The apparatus also includes an extraction device and core stabilizers.

Abstract: A method of preparing stackable block structures from raw concrete mixes and block structures prepared in accordance with the method, wherein the process utilizes a mold box configured to form the block on its side surface. The mold box is arranged to travel along the surface of a moving conveyor belt, with the box having an open top, an open bottom, and lateral side panels supported on the conveyor belt surface, and with the panels having core bar receiving openings formed therein. The core bars are introduced and removed from the mold box along an axis which is parallel to the surface of the core bars and to the motion axis of the conveyor belt, and with the core bars configuring one of the two opposed side surfaces of the stackable block. A reciprocating top shoe arranged for reciprocatory up and down motion engages and configures the top surface of the raw concrete mix held within the walls of the mold box.

Abstract: A die for a rotary compression press, comprising a die holder axially supported in a guide bore and a die insert which is seated in the end-side bore of the die holder via a trunnion-shaped projection and is adapted to be mounted via releasable fastening means, wherein the projection is helically guided in the bore between axially spaced stops and is biased by a spring towards the associated front-end face of the die holder.

Abstract: A mold for forming a dielectric housing for a card edge connector, wherein the housing has an elongated body defining a central slot for receiving a lower edge of a memory module. The elongated body has two lateral ends each formed with a tower for pivotably receiving an ejector for latching or ejecting the memory module received by the connector. A number of contact passageways are defined beside the slot for receiving a number of contacts therein for electrically engaging with golden fingers on the lower edge of the memory module. The mold has a gate located proximate to a lateral end face of one of the towers of the housing to be formed by the mold, and a number of core pins in the cavity for forming the contact passageways. The core pins located nearest to the gate have a cross section larger than that of the other core pins so that they are strong enough to withstand a fluctuation of a high pressure for injecting molten plastics into the mold.

Abstract: In accordance with the present invention, there is provided a composite forming/curing fixture for fabricating beam members which have a web, at least one outer flange extending from the web and a first web inner radius formed between the web and the outer flange. The fixture is used for forming and curing beam members having a variety of cross-sectional configurations with variable web sizes, flange sizes and first web inner radii. The fixture is provided with a mandrel having opposing first and second mandrel surfaces. The mandrel has first and second positions which facilitate the formation of the various beam sizing and configurations. The fixture is further provided with a web forming space which is adjacent the mandrel for forming the web of the beam member therein. The fixture is further provided with a first and second outer flange forming spaces adjacent the mandrel.

Abstract: A plunger assembly (10) for a glass container forming machine of the I.S. type, the plunger assembly having a plunger (12) that is open it one end and is non-threadably secured at its open end to a free end of an annular cylinder rod (14) that operates to reciprocate the plunger relative to a blank mold of the forming machine. A perforated cooling air inlet tube (20) is positioned within the plunger, and the free end of the air inlet tube is held against a free end of an annular extension (22) of the cylinder rod, an opposed end of which is threadably received in the cylinder rod, by a split locking ring (30) an inwardly facing recess (36, 38) of which traps a radially outwardly extending flange (40) of the plunger to axially position the plunger relative to the split ring. The split ring abuts an endless ring (24) and is axially positioned thereagainst by a flange (44, 46) of the split ring that is received in a recess (42) of the extension.

Abstract: A method and apparatus for injection molding of a fiber optic ferrule including the use of adjustable core and receiver members adjustable from the exterior of the mold to precisely locate a projecting wire member in a mold where a score pin defines an interior passage in the molded ferrule and the projecting wire forms a small diameter longitudinal hole in the ferrule communicating with an outer end of the interior passage so that the interior passage and small diameter hole are precisely located relative to the body of the molded ferrule.

Abstract: In a molded element containing therein a horizontally disposed bore, the improvement comprising: a plurality of downwardly disposed first elements having distal ends, and being spaced apart from one another, and a plurality of upwardly disposed second elements having distal ends and being spaced apart from one another, wherein the plurality of first elements are offset from the plurality of second elements, whereby a horizontally disposed bore is formed by the distal ends of the plurality of first elements and the distal ends of the plurality of second elements.

Abstract: Method and apparatus for the continuous extrusion of rods of plastic raw material. The rods contain at least one inner channel which is at least in part spiral-shaped. The raw material may be a powder-metallurgical or ceramic mass. The material is extruded through a nozzle mouthpiece and made to rotate by an arrangement of flow guiding surfaces. At least one thread made of a flexible or elastic material is entrained and gives the rod a spiral shape with a predetermined pitch. The thread is retained upstream of the nozzle mouthpiece in an eccentric position relative to the rod axis that extends through the nozzle mouthpiece. The movement of rotation of the raw material is adjusted by an outer adjusting force which modifies the angle between the arrangement of flow guiding surfaces and the longitudinal axis of the nozzle mouthpiece to adjust the position and pitch of the spiral channel.

Abstract: A guide block assembly and associated method are provided for retaining a plurality of fiber bore forming pins and at least one guide bore forming pin in precise relation to each other during molding of a multi-fiber ferrule used in a multi-fiber connector. The assembly comprises an array of fiber bore blocks each with a fiber bore therethrough to retain a respective one of the fiber bore forming pins. At least one guide block that defines a guide bore for retaining a guide bore forming pin is assembled with the array of fiber bore blocks. Adjoining surfaces are defined between adjacent fiber bore blocks and between the guide bore blocks and the array of fiber bore blocks. The use of bores more precisely retains the pins during the molding process, and the use of blocks with adjoining surfaces allows for the machining of such surfaces to precisely establish the relationships between successive fiber bore blocks and between the array of fiber bore blocks and the guide bore blocks.

Abstract: The present invention relates to an apparatus that forms a polymeric structure. The apparatus has a mold plate, a circular trench, a male and female interconnect, a vertical gap filler, and a cylinder. The mold plate has a predetermined geometric design. The circular trench is in the mold plate and the difference between the outer diameter and the inner diameter of the circular trench is a distance D. The male interconnect and the female interconnect are interspaced between each other. Each interconnect rotates within the circular trench and has a base and an interconnection portion. Each base has a width D and slidably mates to the mold plate. Each interconnect portion has a minimum width W which is less than D. The male interconnect portion protrudes downwards relatively from its base to a distance P, likewise the female interconnect portion protrudes upwards relatively from its base to a distance P. The vertical gap filler aligns with the circular trench and has a foundation and an extension.

Abstract: A threaded actuator is disclosed for positioning a core in a molding apparatus. The threaded actuator includes a hydraulic cylinder unit having a piston rod connected to the core for positioning thereof. The core is subjected to intense force during the molding process and this force is transmitted onto the piston rod and hydraulic cylinder unit and its support. The hydraulic cylinder has a threaded nose which is secured within a threaded opening in a support. A rotatable threaded connecting member is threaded between the threaded nose and the threaded opening of the support structure. The outer and inner threaded connections of the rotatable threaded connecting member are of different thread configurations to form a differential thread assembly. The configurations may differ either in pitch and/or in the handedness of the threads. The differential threaded assembly provides for relative positioning of the hydraulic cylinder unit and core relative to the mold.

Abstract: Improved methods for manufacturing a shaft for a golf club, devices useful in such methods, and golf club shafts manufactured in accordance with such methods. A plug is detachably affixed to a distal end of a mandrel. A plurality of plies pre-preg composite sheet are wrapped around the mandrel and plug and, thereafter, heated causing the resin comprising the various plies to be cured. The mandrel is then removed from the formed shaft, leaving the plug as an integral part of the distal tip of the shaft.

Abstract: A method and apparatus for the manufacture of fiber reinforced structures. The tooling and its use for the manufacture of reinforced structures is described and illustrated.

Abstract: A method of ferrules used in an optical connector for connection and short-circuit of making multichannel optical signals. Heretofore, many fiber receiving holes have been arranged along a line at regular intervals with tolerance amounting to less than 1 micron. 10 and connect two ferrules, a precisely processed cylindrical metal guide pin under 1 micron, precise pitches formed in ferrules and a metal pin guide hole are used, Consequently, it has been necessary to maintain a high degree of precision. The present invention maintains a high degree of precision by reverse direction connection dependent merely on a predetermined height a reference plane. The reference plane is formed by relatively easy plane processing as the method of maintaining precise height and directivity of flow is added to the inside of a mold.

Abstract: An end-face-side core 5 from which an optical fiber hole forming pin 1 is projected is fastened by a mold to a fiber-side core 10 from which an optical fiber hole forming pin 6 and a cavity forming member (for example, a tape fiber hole forming rectangular body 8) are projected, while the end-face-side core and the fiber-side core are opposed to each other, the cavity forming member being behind the optical fiber hole forming pin 6 and larger than the optical fiber hole forming pin. A resin is injected into a cavity formed in the mold. The mold is opened, the end-face-side core 5 and the fiber-side core 10 are slid in directions in which the end-face-side core and the fiber-side core are separated from each other, and a resin molded product is then taken out.

Abstract: A composite camel structure includes an elongate hollow, rigid cylindrical core, opposite ends of the core having respective caps sealingly connected thereto, a buoyant material of cured urethane foam substantially filling the core and being sealingly enclosed therein. A cushion is thermally bonded to and sealingly surrounds the core, the cushion having a substantially unbroken outside surface, being formed of a polymeric component consisting of polyethylene being at least 80 percent low-density polyethylene, and a process additive component including an effective amount of an ultraviolet inhibitor. A pair of parallel-spaced, transversely oriented guides extend between opposite sides of the cushion in axially spaced relation to the core, each guide defining a guide opening through the cushion for receiving hawser chains whereby the camel structure rides up and down with the tide.

Abstract: In the production of a nozzle cartridge with a nozzle formed thereon in a hollow mold, in which a core (26) is located, a centering of the core (26) occurs in an injection phase by means of webs (40) provided on the hollow mold, with a conical centering surface (39) of the core (26) abutting against them. In a subsequent supplementary filling phase, the core (26) or an interior core (28) is withdrawn, the melt flowing over the webs (40) and forming a closed wall in the area of the nozzle base.

Abstract: A transducer for measuring the amount of lateral deflection taking place at the tip of a core-pin inside a mold or die cavity. Non-uniform cavity pressure and cooling patterns make core-pins prone to deflection resulting in out-of-tolerance thin and thick wall sections of the finished part. The transducer provides a means of determining deflection as it occurs during the molding process for statistical quality control. Real time measurement of the core deflection allows discrimination of unacceptable and reject parts for an automatic part sorting process. In the preferred embodiment a plurality of strain gauges mounted on the core-pin outside of the mold cavity provide real time electric signals of lateral deflection that can be used to automatically segregate reject parts and provide for statistical process control.