Abstract: A method of making a closure for a container is accomplished by providing a unitary mold with a mold cavity therein having vertically extending ribs and a rotatable and linearly movable threaded core element is received within the cavity. A formable plastic material is placed within the cavity and the core element is received within the cavity. Alternatively, the formable plastic material may be injected into the mold cavity. Upon contacting the formable plastic material with the core element the plastic material is forced around the outer surface of the core element and the inner surface of the cavity forming a closure with an internal thread and externally extending vertical ribs. The closure and the core element are backed out of the cavity wherein the core element is moved linearly and rotatably, but rotation of the closure is prevented.

Abstract: A molded sweep elbow tube connector includes a molded tube connector member comprising a first linear tube end portion, a second linear tube end portion, and a curved sweep tube portion defined by a relatively large sweep radius and joining the two end portions to form an integral one-piece molded part. The tube connector member forms an interior passageway for carrying a flow of fluid, characterized by a sweep bend between the two end portions, permitting fluid laminar flow through the tube connector. The tube connector member has a thick wall thickness over at least a portion of the curved sweep tube portion and a thin wall thickness over the first linear tube end. The thin wall thickness facilitates the removal of a curved core pin from the part through a linear tube end portion after injection molding, since the plastic material will flex enough to permit the pin to be stripped without damaging the part.

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 container is made in two stages from thermoplastics material. In the first stage a preform (1) is injection molded, the mold parts easily releasing a tubular body (2) with a closed end and an outwardly projecting rim (3) at the open end. In the second stage the still heated preform (1) is blow molded, possibly with some preliminary mechanical stretching, with the blow pin (13) seated in the open end of the body (2) and the preform (1) held by the outer part (7) of its rim. The wall of the body (2) is expanded, and immediately be low the open end it is stretched outwardly to meld with the underside of the inner part (5) of the rim. The resultant container thus has a mouth defined by an inset lip. It may be of paint tin form, with a drip groove (9) around the mouth.

Abstract: A shaped part having a hollow cylindrical body (1) having at least two longitudinal slots (5) extending over a larger portion of a longitudinal extent of the hollow cylindrical body (1) and open at one of end surfaces of the hollow cylindrical body (1), and a circumferential undercut formed in an inner wall (3) of the hollow cylindrical body (1) in its longitudinal region intersected by the longitudinal slots (5), spaced from the one end surface, and having a flank (9) tapering toward the one end.

Abstract: A retainer installation through hole is formed in a connector housing by an installation hole forming pin. After molding the connector housing and a retainer, the retainer is assembled from a side opposite the side where the installation hole forming pin is extracted for the retainer installation hole. Thus, since interference of the retainer installation hole with the retainer is avoided, a mold construction can be simplified. Further, since the direction of motion of the respective parts of a mold apparatus are only in biaxial directions of up and down and transverse (X,Y axis directions), the molding spaces of a plurality of connectors can be provided in the mold apparatus along a third axis direction (fore and aft direction, namely Z axis direction) in a line. Thus, the molding and assembling of parts for many connectors can be simultaneously carried out by a single mold apparatus.

Abstract: The invention provides a method for making a hollow doll's head by injection molding a thermoplastic elastomer around a removable mold core. The major dimension of the mold core is larger than the opening in the doll's head through which the core is to be removed after the injection molding is complete. For large mold cores and relatively small openings, the invention provides a multiple piece core section which is designed to be removed piece by piece through the opening in the doll's head and then reassembled for reuse.

Abstract: An apparatus for forming threaded molded parts such as closures for containers having improved means for unthreading the formed part from the mold core. The apparatus includes a cavity part and a core part, the cavity part being rotatable relative to the core part, such that simultaneous rotation of the cavity and opening of the mold results in unthreading of the part from the core. The mold cavity is rotationally coupled to a mold cavity rotator which is preferably driven by means of a rack. The rotation of the mold cavity is timed with the mold opening step such that the threaded part is unthreaded from the core as the mold plates are separated.

Abstract: A method of making molded parts employing Shape Deposition Manufacturing (SDM) techniques. First, SDM processes are used to make a layered structure having support segments and mold segments. The support segments are made of material which may be removed from the mold segments (e.g. dissolved or melted). The mold segments are made of a material which can function as a mold. The mold and support segments are sequentially deposited (e.g. in layers) and shaped (e.g. machined) to form a mold. The support segments define the shape of the part to be manufactured. The mold segments are removed from the support segments by dissolving or melting away the support segments, leaving an empty mold. Then, part material is cast into the empty mold. The mold is removed, providing a molded part. The part material can be a gelcasting slurry, for example. The present method provides homogeneous or heterogeneous parts having shapes which are accurately defined by the SDM process.

Abstract: An object of the present invention is to provide a mounting structure of a clip to a resin molded article and a mounting structure and manufacturing method of a resin molded article capable of easily manufacturing a resin molded article having its excellent design surface and having high mount strength.

Abstract: A method for forming a temporary orthopedic implant used in an orthopedic surgical procedure. The method includes mixing bone cement during a surgical procedure. An appropriately sized cement mold is selected which is translucent and includes an input port. The cement mold is filled with bone cement to form the temporary implant. A surgeon determines that the cement mold is fully filled by viewing through the translucent cement mold. The surgeon further fills the cement mold by directing a nozzle within the input port of the cement mold. The cement mold may further be pierced to relieve any air pockets formed in the cement mold. The temporary implant is then subsequently implanted into a patient. The temporary implant may also include a re-enforcement member included into the temporary implant.

Abstract: A method for manufacturing a tamper-indicating closure having a plurality of resilient flexible projections bent upwardly and radially inwardly at a predetermined radius of curvature. The first step in the method includes providing a mold assembly comprising a female mold portion for forming the outer surface of the closure and a male mold portion for forming the closure's inner surface and its plurality of projections. The male and female mold portions are arranged for relative movement toward and away from each other between a mold open position and a mold closed position. When in the mold closed position, the male and female mold portions define a mold cavity in which the tamper-indicating closure is molded.

Abstract: The wiper blade (10) for a windshield has a wind scoop (20, 22, 24) elastically fastened to it. The wiper blade (10) includes a rubber wiping element (16), which is adapted to contact the windshield (12) with its wiper lip (18). The wind scoop (20, 22, 24) includes a rigid component and an elastic lip arranged close to the windshield (12) during an upward wiping motion. The elasticity and lever arm of the elastic lip are selected so that it moves closer to the windshield during a downward wiping motion and, when opposing forces due to wiper lip friction and wind exceed a predetermined limiting value, it contacts the windshield (12) during the downward wiping motion. The edge region of the elastic lip that contacts the windshield is provided with steps, zigzags and/or waves, so that friction forces between the elastic lip and windshield are reduced.

Abstract: A pair of form keys and a method for forming reverse drafts in foam parts are disclosed. A male form key is reciprocally mounted in a first mold half in a retracted position. A female form key is rotatably mounted in a second mold half in a neutral position. The first mold half includes a first drive pin that when engaged, moves the male form key into engagement with a foam sheet to form an undercut as the first and second mold halves are closed. The first mold half also includes a second drive pin that engages the female form key as the first and second mold halves close rotating the female form key into engagement with the foam sheet and the male form key. After closure of the mold and the product is formed, the mold is opened. As this occurs, the drive pins are disengaged and the male form key retracts and the female form key rotates to their neutral positions. The formed product may then be stripped from the mold while maintaining the reverse draft or undercut.

Abstract: A method of manufacturing a plastics material bellows, wherein a preform is made by molding plastics material in a mold, the mold having preferred deformation zones, and then before the part has completely left the mold, the bellows is formed by folding the preform in the preferred deformation zones, with the resulting bellows being open at both ends.

Abstract: A mold core having an upper surface and at least one hole passing therethrough is provided. An ejector pin is disposed within at least one of the holes in the mold core. The ejector pin includes a bushing having an undercut portion protruding above the upper surface of the mold core for enhancing the adherence of a part molded on the mold core thereto. The bushing also has a hole passing laterally therethrough through which passes an ejector pin shaft. The ejector pin shaft, which includes a head, forces a part adhered to the mold core off of the mold core when so desired. The protruding portion of the bushing is undercut in the form of a back-drafted angle, a circumferential rib, either indented or projecting, and of a partially round or V-shaped cross-section, a series of dimples, or of any other shape which will cause the molded plastic to adhere tightly to it. The head of the ejector pin may be located out beyond bushing and may be dome-shaped, conical, or any of other various shapes.

Abstract: A mold for molding a core for use in casting hollow parts includes, a lower mold portion and an upper mold portion defining therein a cavity corresponding to the outer surface of the core. The lower mold portion includes a cutout disposed along a parting line defined between the lower mold portion and the upper mold portion and opening onto the cavity. After introduction of a ceramic slurry mixture into the mold the upper mold portion is removable, to expose a first side of the core and a protective flash formed in the cutout. Desirably, a heat shield is positioned over the protective flash and the exposed portion of the parting line of the lower mold portion so that the lower mold portion is not exposed directly to a flame during a preliminary firing to impart sufficient strength to the ceramic core so that the ceramic core may be handled.

Abstract: A process for the hot moulding of articles (L) made of thermoplastic material, comprising the steps of:

Abstract: A pair of form keys and a method for forming reverse drafts in foam parts are disclosed. A male form key is reciprocally mounted in a first mold half in a retracted position. A female form key is rotatably mounted in a second mold half in a neutral position. The first mold half includes a first drive pin that when engaged, moves the male form key into engagement with a foam sheet to form an undercut as the first and second mold halves are closed. The first mold half also includes a second drive pin that engages the female form key as the first and second mold halves close rotating the female form key into engagement with the foam sheet and the male form key. After closure of the mold and the product is formed, the mold is opened. As this occurs, the drive pins are disengaged and the male form key retracts and the female form key rotates to their neutral positions. The formed product may then be stripped from the mold while maintaining the reverse draft or undercut.

Abstract: A mold apparatus for forming a pair of mutually opposing guide walls respectively disposed and erected on an upper surface of a half-case of a magnetic tape cassette. The mold apparatus is divided into a third mold and a second mold, and the guide walls to be molded form the boundary between the third and second molds. After injecting resin into the mold apparatus in order to mold the guide walls, the second mold of the mold apparatus is firstly removed in the guide wall erected direction. Then, the third mold of the mold is removed in the same direction, while a distance between the formed guide walls is enlarged by elastic deformation resulting from contact between the guide walls and the third mold.

Abstract: Mold assembly for forming a lens blank for an ophthalmic lens, wherein upper and lower tapered inner surfaces of intermediate sleeve are adapted to be held in press-fitting engagement with respective outer surfaces of upper and lower molds, to effect fluid-tight connection of the upper and lower molds with the intermediate sleeve, with the upper mold being held in abutting contact with a shoulder of the intermediate sleeve, and with stopper surfaces of the intermediate and lower molds being held in abutting contact with each other to determine a relative axial position therebetween, such that a mold cavity to be filled with a liquid monomer composition is defined by the upper and lower molds and the intermediate sleeve, while a liquid reservoir for storing an excess amount of the monomer composition which has been discharged from the mold cavity is defined by the upper mold and the intermediate mold.

Abstract: A method for forming removable dentures using injection molding techniques wherein a cyanoacrylate base material is applied to the sides of the denture teeth, an activator or accelerator compound being sprayed onto the deposited base material whereby the base material is rapidly cured. The denture is then placed in the lower half of a mold, or flask, and a plurality of sprues are positioned therein. The upper flask portion is then attached to the lower half and the assembled flask is then invested with plaster material. The activated gel enables the teeth to be retained in position in the lower half of the flask. The flask is then placed in hot or boiling water and then deflasked to remove the melted wax. The flask is then reassembled and polymer injected therein filling the areas previously occupied by the wax. After the polymer is cured, the prothesis is removed, polished and then returned to the dentist.

Abstract: A pair of form keys and a method for forming reverse drafts in foam parts are disclosed. A male form key is reciprocally mounted in a first mold half in a retracted position. A female form key is rotatably mounted in a second mold half in a neutral position. The first mold half includes a first drive pin that when engaged, moves the male form key into engagement with a foam sheet to form an undercut as the first and second mold halves are closed. The first mold half also includes a second drive pin that engages the female form key as the first and second mold halves close rotating the female form key into engagement with the foam sheet and the male form key. After closure of the mold and the product is formed, the mold is opened. As this occurs, the drive pins are disengaged and the male form key retracts and the female form key rotates to their neutral positions. The formed product may then be stripped from the mold while maintaining the reverse draft or undercut.

Abstract: Apparatus and a method for injection molding large container lids of the type having threads for screwing the lids onto and off large containers. The apparatus includes an injection mold having a cavity mold portion and a core mold portion which together define the shape of the lid. The core mold portion includes a stationary annular ring that defines the lid threads. A co-axial, rotatable center section of the core mold portion is opened to spin the molded lid off the core mold portion and release it from the mold.

Abstract: A composite article including a tubular body having a front end, a rear end, a peripheral wall extending between the front and rear ends, a wall support located rearwardly of the front end of the peripheral wall and at least one paragraph formed in the wall engaging support. An end cap is positioned on the front end of the tubular body to obstruct the wall engaging support except for at least a portion of at least one of the passages and to define a channel between the end cover and the peripheral wall. A plastic coating fills at least one passage in the channel and overlaps the cover to fasten the cover to the tubular body.

Abstract: Micro-Mold Shape Deposition Manufacturing (&mgr;-Mold SDM) is a method for fabricating complex, three-dimensional microstructures from layered silicon molds. Silicon wafers are etched using conventional silicon-processing techniques to produce wafers with surface patterns, some of which contain through-etched regions. The wafers are then stacked and bonded together to form a mold, which is filled with part material. In one embodiment, the part material is a ceramic or metallic gelcasting slurry that is poured into the mold and solidified to form a part precursor. The mold is removed, and the precursor is sintered to form the final part. The gelcasting material may also be a polymer or magnetic slurry, in which case sintering is not needed. The mold can also be filled by electroplating a metal into it; if necessary, each layer is filled with metal after being bonded to a previously filled layer.

Abstract: This mould is intended to form a cap (1) having a cylindrical skirt (3), this skirt being provided with at least one screw thread (4), a top (2) and a tamperproof ring (6) linked to the free end of the skirt by breakable linking elements. It has a movable part or mould top (20), a stripping part or stripper ring (21) and a core (22).

Abstract: A tamper-indicating closure of integrally molded plastic construction that includes a base wall having a peripheral skirt with internal threads for engaging external threads on the finish of a container. A tamper-indicating band is connected to the lower or free edge of the skirt by a plurality of circumferentially spaced integral bridges. At least one of the bridges has a greater circumferential dimension than other of the bridges. A thin integral membrane is disposed in the band immediately circumferentially adjacent to the one bridge, and extends both axially and circumferentially of the band. A stop flange is positioned on the band for engaging a bead on a container to inhibit removal of the closure, such that the membrane and the other bridges rupture upon removal of the closure but the band remains connected to the closure by the one bridge of enlarged circumferential dimension.

Abstract: The invention concerns an air conduit for motor vehicle instrument panel made in the form of an open conduit with a longitudinal slot defined by two fusion faces, the open conduit being produced in one single piece with the instrument panel by moulding a ductile material enabling the stripping by widening the longitudinal slot, means for joint being provided by joining the fusion faces of the longitudinal slop after stripping.

Abstract: In a method of injection molding an elongated article, such as a cable tie, having a head and a strap terminating in a tip, (a) the article is formed by injecting molten plastic material, such as nylon, into a mold cavity defined between a first mold part and a second mold part, wherein the first mold part includes a head region defining a portion of the head of the elongated article, the second mold part includes a tip region defining a portion of the tip of the elongated article, and the portion of the mold cavity defined by the second mold part defines a series of pointed teeth on one side of the strap; (b) the first mold part is separated from the second mold part while retaining the portion of the head of the elongated article in the head region of the first mold part and the portion of the tip of the elongated article in the tip region of the second mold part, thereby separating the head from the second mold part, the tip from the first mold part, and a major portion of the strap of the elongated articl

Abstract: A plural-chambered dispensing tube is made by a method involving molding a molten resin material into a tube head while a pre-finished tube body having a partition disposed therein is disposed within the molten resin material. Thus, the pre-finished tube body and partition become connected to the tube head as the latter is being molded. In this way, the tube body and the partition are molded into the tube head to form a uniform seal between the partition and the tube head and to improve the separation of the stored components.

Abstract: A method of forming a reseal element through the use of a mold assembly including first and second mold plates, a shell core, a center pin, a center core, and a mold cavity having a shape corresponding to that of the reseal element and collectively defined by the first and second mold plates, the shell and center cores, and the center pin. The method comprises the initial step of injecting a quantity of a moldable material into the mold cavity to form the reseal element. Air is then infused between the shell core and the center pin into the mold cavity to dislodge the reseal element from the shell core and the center pin. Thereafter, the center core is retracted from the reseal element to define a gap therebetween, with the second plate then being retracted from over the reseal element to expose the same. The first plate is then advanced toward the second plate to remove the reseal element from upon the shell core and the center pin.

Abstract: An innovative container lid having an integrally formed tamper evident band that goes through a series of changes or metamorphoses during the manufacturing and application process. The tamper evident band is attached to the lid at weak points on dogs formed around the periphery of the lid. Before use, the tamper evident band has a diameter substantially larger than the outer diameter of the lid. When the lid is installed in a container, and tangential and radial forces are applied to the periphery of the lid, the attachment points of the tamper evident band rupture and the band is displaced in a rippling effect with the dogs locking into sockets formed in the sidewall of the tamper evident band. Continued pressure is applied to the side of the tamper evident band until it is pressed firmly around the entire periphery of the lid against the side of a container with all the dogs engaged in sockets.

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: In a method of injection molding a tie that includes an abutment wall surface having at least one tooth inside a locking head facing a pawl, a movable core that defines at least a portion of a surface of the abutment wall that is on the opposite side of the abutment wall from the portion of the abutment surface that includes the at least one abutment surface tooth is moved to thereby enable the abutment wall to flex in a direction away from the pawl into a space vacated by movement of the core so that the tie can be removed from the mold without significantly damaging the at least one abutment surface tooth.

Abstract: A mold for injection molding of a plastic bottle cap has a cavity which defines the outside slope of the top and skirt of the cap. A core and a core insert fixed to the top of the core define the inside of the cap and constitute a single, non-moving part. A tapered stripper ring below the cavity engages the base of the cap skirt. After the cap has been injected through a hot tip in the cavity, the cavity is retracted. The stripper ring is then elevated relative to the core by means of ejector pins. As this is proceeding, air is released under the top of the cap to break vacuum tending to hold the cap on the cap insert. The cap is thus ejected from the mold. A reduced cycle time is achieved. The wall thickness of the cap may be reduced, thus reducing material cost.

Abstract: A method for forming a molded grommet using a device which includes a fixed mold and a movable mold, the latter having three positions. The first is a closed position, wherein the two molds are adjacent each other with a middle plate between them. Second, there is an intermediate position in which the middle plate and movable mold are spaced apart from the fixed mold. Third, there is an open position, wherein the movable mold is spaced further from the fixed mold than the middle plate. A core is fixed to the movable mold and, when in the closed position; the two molds, the core, and the edge of the middle plate define the molding space into which moldable resin is introduced, thereby forming the grommet with the edge within the channel. As the core moves from the intermediate position to the open position, the middle plate is retained in the intermediate position; therefore, the core is pulled out of the grommet through the axial hollow therein.

Abstract: A multiply-acting powder metal press is disclosed for making green form double helical gear compacts. The press has inner and outer lower punches, and an upper, outer punch. The upper and lower outer punches have left hand and right hand external helical profiles as chosen to produce a desired helical gear. The punches co-operate with left hand and right hand helical dies carried by the press about the punches. The helical faces require that the dies rotate relative to the punches during operation. A cam and roller mechanism may drive this rotation. The compact forming process commences with an open position in which powder is introduced to a vacant lower die cavity. The upper portions of the press advance downward to close the cavity. All parts of the press except the lower inner, or transfer, punch then move downward at the same speed to transfer powder to the extremities of the cavity. When transfer is complete both lower punches may be stopped, while the upper punches continue to advance.

Abstract: A dispenser head for dispensing a fluid includes a dispenser endpiece of rigid or semi-rigid thermoplastic material and a flow reducer member of elastically deformable thermoplastic material secured to the endpiece. The member includes at least one slot whose edges are suitable for moving apart under the effect of thrust from the fluid while it is being dispensed. A method of making the dispenser head includes making the flow reducer member by injection molding from one or more injection points situated on one or both sides of the slot.

Abstract: A method of forming a continuous band of resilient material with a preselected design on an exterior surface thereof, which has a seamless appearance is disclosed. The method includes inserting a molding insert core having a textured outer surface within a molding cavity. A continuous band of resilient material is formed about the core. The band bears the reverse image of the textured pattern on its interior surface. Like other molding processes, the band bears flash or parting lines formed on its exterior surface. The band is inverted by turning it inside out so that the flash or parting lines are positioned on its interior surface and the reverse of the textured pattern is positioned on its exterior surface. As such, an aesthetically pleasing band having a seamless exterior surface is produced.

Abstract: A method and apparatus for manufacturing a film-covered flange having the following steps. An injection molding press having a mold cavity and a core receives a pre-molded thermoformed film. The film is formed to have an in-turned flange portion that will form the covering for the final article. The film is placed within the mold cavity. The core has a slide movable between retracted and extended positions. The slide is retracted and the core is moved within the mold cavity. After the press is closed the slide is moved from the retracted position to the extended position. The slide includes a recessed portion that lies opposite the flange portion to create a space therebetween. A molten plastic material is injected into the space. The plastic material adheres to the flange portion and forms an article having a covered flange.

Abstract: A stator for a hydrodynamic torque converter which is produced by injection molding with axially drawn dies. The stator hub has stator blades produced by use of a thermoplastic material to fill the dies in the injection molding process. The stator blades are positioned relative to one another on the stator hub in such a way that the flow outlet of every stator blade is arranged at an offset of only the width of a gap relative to the flow inlet of the subsequent stator blade in the circumferential direction.

Abstract: A modular, vacuum formed, unitary vanity which extends from floor to the ceiling, or near the ceiling. Alternatively, the vanity extends upwardly from the counter top level to the ceiling. The vanity is vacuum formed of a single piece of formable material, such as acrylic. The vanity has no joints or seals to deteriorate with use and time or to collect dirt. The modular and unitary vanity fits within a void formed in a wall during construction. The device is substantially maintenance free in ordinary use. The vanity is vacuum formed from a single piece of formable material using a vacuum form mold. The mold is a break apart mold which allows the vanity to be removed from the mold without interference from the sink bowl which is formed in the vanity.

Abstract: A device for molding a container having a first member including an opening defined therein. A manifold member, operatively attached to the first member for channeling a plastic fluid to an insert device is included. The insert devices are positioned within the opening located within the first member, with the insert containing a first slide and a second slide. The first slide and second slide will have an extended position and a contracted position, and wherein the contracted position defines a cavity profile. The second member will have a first end that contains a plurality of core pins. A piston is adapted to the second end of the second member for reciprocating the second member into engagement with the insert so that the first slide and second slide are moved to the contracted position. During the reciprocating motion, the plurality of core pins are received in the cavity profile. The apparatus will further comprise heater means for suppling a heat to the fluidized plastic.

Abstract: An injection molding apparatus and method of injection molding a closure having projections extending inwardly from a skirt of the closure includes a plurality of slides for movement obliquely with respect to an inner mold core. A ring contacts the closure and surrounds the slides. Movement of the ring relative to the mold core results in the movement of the closure which moves the slides to disengage recesses on the slides. The recesses are used to form the projections on the closure. The ring contacts the closure and advances the closure away from the mold core. The projections seated within the recesses on the slides move the slides obliquely relative to the mold core and ultimately disengage the recesses from the projections thereby releasing the closure from the mold. The movement of the slides is independent from the movement of the ring so that complicated mechanisms for movement of the slides are not required according to this invention.

Abstract: A connector including a housing which includes terminal receiving grooves in which metal terminals are inserted and received, respectively, from one insertion opening, an upper wall closing upper sides of the terminal receiving grooves, and retaining holes formed in the upper wall in such a manner that the inside and outside of each terminal receiving groove communicate with each other through the associated retaining hole, and a flexible retaining arm, formed on and projecting from the metal terminal, is retainingly engaged in the retaining hole.

Abstract: A mold core positioning device includes a cam member carried by a first mold segment that is configured to engage a cam follower carried by a second, cooperating mold segment. The cam follower is provided on a core slide to which an outwardly extending core member, such as a core pin, is connected. The core slide is movable toward and away from a mold cavity to move the core pin into and out of a position within the mold cavity. The cam member includes an extension cam surface and a withdrawal cam surface. The withdrawal cam surface includes a breakaway cam surface that causes slow retraction of the core pin relative to the molded part, and a retraction cam surface that causes more rapid withdrawal of the core slide and core pin after the core pin has been initially separated from the molded part.

Abstract: The present invention relates to a method of making a slider of a linear guide device for guiding a movable body such as a work table or an industrial robot of a machine tool under load which moves along a track rail arranged at a fixed portion such as a bed, a column or the like, the method is comprising a first step of forming a block main body made of a metal which becomes a core part of the slider in a predetermined shape and forming load rolling faces of balls on the block main body by machine, and a second step of inserting the block main body formed in the first step into a mold and executing an injection molding of a synthetic resin by which ball retaining portions are built on both sides of the load rolling faces of block main body, and according to the first step pairs of smooth faces for shielding the molten synthetic resin are formed along the both edges in the longitudinal direction of the load rolling faces formed on block main body whereas according to the second step the block main body is fix

Abstract: Apparatus for molding plastic caps having inclined tabs integral with the lower edge of the cap skirt and radially inwardly extending ribs integral with the inner surface of the cap skirt. The tabs and ribs are formed by a plurality of blades having recesses on the ends thereof corresponding to the configurations of the tabs and ribs. The blades are mounted on a core and extend into a female mold having a cup-shaped cavity. A linear drive member is mounted on a fixed plate assembly and connected to a ratchet sleeve rotatably mounted on a movable plate assembly. The end of the ratchet sleeve is provided with circumferentially spaced teeth engaging the lower peripheral edge of the cap skirt. Movement of the movable plate assembly relative to the fixed plate assembly causes the ratchet sleeve to rotate to move the molded tabs and ribs away from the recesses of the blades so that the finished cap can be stripped from the apparatus.

Abstract: To make a piece of bread, such as a croissant, an apparatus is provided to prevent a sheet of dough from being loosely rolled up, to prevent the sheet from being unevenly rolled up, and to firmly roll the sheet up. The apparatus includes a conveyor that feeds the sheet and a roll-up roller that is moveable up and down above the conveyor, so that the rotation of the roll-up roller and the feeding of the conveyor allow the sheet for bread, such as a croissant, to be firmly rolled up.