Abstract: A method of fabricating a vacuum insulated refrigerator structure includes positioning a first barrier film in a female mold cavity. Porous filler material is positioned on the barrier film, and a second barrier film is positioned over the porous filler material. A male mold is brought into contact with the second barrier film to deform and compress the porous filler material into a 3D shape. A vacuum is formed between the first and second barrier films, and the first and second peripheral edge portions are sealed together to form a vacuum insulated core. The vacuum insulated core may be positioned between a liner and a wrapper to form an insulated refrigerator cabinet, door, or other vacuum insulated component.

Abstract: The high straightness arrow in the present invention is designed to improve the straightness of the archery arrow by adopting new manufacturing technique and method. Chamber and post are made of dissimilar metals and the chamber includes a wall that creates an external housing and defines an internal airspace. Once the post with shaft is positioned through chamber, nuts are tightened securely, forming an assembly, to straighten post. Due to the different coefficients of thermal expansion of chamber and post, when they are heated simultaneously, the chamber expands more than the post, creating a natural tension along post which results in a near perfectly straight shaft. As the assembly cools, the post and chamber return to their original length, yet the shaft retains its straightened form and thus this manufacturing process yields an arrow shaft that is straighter than shafts made of the same materials but with a traditional manufacturing technique.

Abstract: Disclosed is a plastic trim reclaim process that recycles otherwise wasted trim into for reuse or densified composite bricks for resale. The device combines four sections to process trim scrap from a typical plastic extrusion process. The four sections comprise an input and feed section, a grinding and pre-sizing section, a compaction and sizing section, and a repelletizing and recovery section. The final product takes one of two forms: a compacted plastic brick or pellet-sized beads that can be directly reused in a new extrusion process. The compaction and sizing section utilizes a heating chamber and ram to force ground trim through an extruder, which is then cut into sections to form brick. The repelletizing and recovery section utilizes an extrusion process that feeds into a cutting plate, whereafter the sized pellets are cooled to solidify their structure prior to being vacuum transported into a container for reuse.

Abstract: A method for producing a tubular structural component and device for production thereof are disclosed. A tubular moulding tool has an inner mould surface shaped corresponding to an outer surface of the structural component. A support surface of an expandable support, formed corresponding to the moulding tool shape such that in an unexpanded state the support fills the moulding tool while the support surface and the mould surface run parallel leaving an expansion spacing of the support surface to the mould surface, is covered with a tubular non-crimp fibre fabric, such that fibres of a fibre layer of the non-crimp fibre fabric run diagonally around the support. After the support has been arranged in the moulding tool, the non-crimp fibre fabric is pressed against the mould surface by expanding the support with radial expansion of the non-crimp fibre fabric. The non-crimp fibre fabric is infiltrated by a curable matrix.

Abstract: The invention relates to a method of manufacturing a tire bead core assembly having a bead core and a bead filler. The method comprises the step of placing a bead core in the compression mould. The method also comprises the step of placing a bead filler intermediate in the compression mould. Further, the method comprises the step of pressing the bead filler intermediate onto the bead core using the compression mould. It is noted that the step of pressing the bead filler intermediate onto the bead core may comprise the step of transforming the bead filler intermediate into a bead filler.

Abstract: A transfer device (10) for an IML process for transporting and inserting a label (8) into an annular gap-shaped mold cavity (9) of a multi-part injection molding tool (1), in particular for manufacturing of tubes or other containers of circular, oval, square or other shaped cross-section. This device (10) comprises at least one transfer tube (13) with a suitably shaped annular gap (21) for receiving and transferring a label (8), wherein the annular gap (21) is formed by an inner core tube (22) and an outer tubular shell (23). Ejection means are provided within the annular gap (21) to enable inserting of a label, which is lying therein, into the mold cavity (9). This ejection means may comprise an air pressure wave or at least a displaceably arranged ejector member (24).

Abstract: A method for making parts with variable thickness corners and parts with variable thickness corners are disclosed. The method includes laying up multiple plies to form a tailored blank, associating the blank with a convex and concave die, and applying pressure and heat so that material from at least one of the plies migrates towards a voided corner area formed between the dies.

Abstract: Tooling aids for applying pressure in laminating, and methods for their use, are described herein. In one embodiment, a caul for applying pressure in laminating includes a base portion positioned between first and second corner portions. The base portion can have a curved shape when it is in a relaxed state, but it moves to a flatter shape when subjected to pressure during lamination. Movement of the base portion to the flatter shape causes the first and second corner portions to move outwardly and away from the base portion. In this manner, the caul can be used to compact laminating materials into corner regions of a corresponding female mold surface.

Abstract: The present invention discloses a molding system, more particularly, a shrinking type molding system comprising an outer mold, an inner mold and a first pattern layer. An adjustable gap is formed between the outer mold and the inner mold to contain a work piece therein. Furthermore, the work piece with a pattern structure on the surface thereof can be formed by the first pattern layer. The difference between the present invention and the prior art is that the molding system of the present invention is capable of optionally or simultaneously forming the pattern structure on the inner surface or the outer surface of the work piece, so as to solve the long last problem that not all the surfaces of the work piece could have the pattern structure thereon in the prior art.

Abstract: A device for producing fiber preforms includes a plurality of unwind stations, a plurality of grippers and at least one first molding tool. Each gripper is movable on a path between a maximum position and a pick-up position. The pick-up position is provided at a thread transfer point and is closer to the unwind station than the maximum position. The first molding tool has a draping position in the region of the connecting lines between the maximum position and the thread transfer points, and a starting position outside the connecting lines. A thread tension control for the threads or rovings is provided.

Abstract: Tools for manufacturing composite parts and methods for using such tools are disclosed herein. A method in accordance with one aspect of the invention includes manufacturing a fiber-reinforced resin part from a plurality of fibers positioned on a tool having a female mold surface. The mold surface can include a first side region, a second side region, an interior region between the first and second side regions, and transition regions between the first and second side regions and the interior region. The method includes positioning a compaction tool over the mold surface. The compaction tool includes a first pressing device and a second pressing device carrying the first pressing device. The method further includes pressing a first portion of the fibers against the transition regions with the first pressing device without generally compacting the portions of the fibers outboard of the transition regions.

Abstract: Described herein are systems and methods for securing a polymeric sheet to rib components of a frame structure, wherein the rib components are jointed at a hub to form an expandable and collapsible implant. In general, the method may include the steps of decreasing a diameter of the frame structure; placing the frame structure into an assembly fixture, wherein the assembly fixture is configured to hold the frame structure in a loaded configuration with a decreased diameter; placing a polymeric sheet into the assembly fixture; and heating the assembly under pressure to fuse the sheet to the frame structure. In general, a fixture may include a first and second platen having a shaping portion and a rim portion positioned around the periphery of the platen, wherein the shaping portions are configured to hold the rib components of the frame structure in a loaded configuration with a decreased diameter.

Abstract: The present invention relates to an installation for manufacturing fiber stringers for aerospace structures formed by at least one swivel-mounted cylindrical carousel, peripherally incorporating a distribution of male configured tools and in relation to said carousel a bed capable of lateral movement, incorporating a distribution of female configured tools, a fiber strip applicator head for making fiber laminates on the male configured tools also being arranged in relation to the carousel, which allows making omega-shaped or T-shaped stringers by means of the interaction of each male configured tool of the carousel with a respective female configured tool of the bed.

Abstract: A tooling for manufacturing by stamping parts made of thermoplastic material from a blank of the material. A hollow die is delimited by a bottom, side walls and an opening opposite the bottom, and a raised punch designed to cooperate with the die via the opening. The tooling includes at least one mobile element to cooperate with at least one recess placed in the bottom and/or side walls of the die, the recess allowing the passage of one part of the blank that is to be bent using the mobile element.

Abstract: Methods and systems for producing thermoformed articles from pre-cut thermoformable billets are provided. The system may include a heating apparatus for heating the billets, a billet thermoformer for thermoforming the billet into an article, a discharge system for evacuated the formed articles from the thermoformer, and an inspection system for inspecting each of the formed articles for the presence of a defect. Conveyors and billet carriers are provided for transporting the billets between the various components of the system, and loaders are provided for loading the billets onto the conveyor and/or billet carriers.

Abstract: A resin coated piston manufacturing apparatus for a shock absorber is provided with a means for pressing a piston raw material to a resin sheet until the resin sheet is locked to a resin sheet locking annular groove of the piston raw material in such a manner as to be capable of reciprocating on a center axis of a set mold. The apparatus having an aligning guide mateable with an inner diameter of the piston raw material set to a piston set hole of the set mold. The aligning guide presses the piston raw material to the resin sheet so as to lock the resin sheet to the resin sheet locking annular groove of the piston raw material, and can press the piston raw material to which the resin sheet is locked, to a heating and cooling cylinder apparatus.

Abstract: A manufacturing method and a manufacturing apparatus of a fiber reinforced composite material are provided, in which the whole fiber-based material is impregnated with a resin and a molding can be performed with high dimensional accuracy. A manufacturing method of a fiber reinforced composite material according to the present invention includes fixing a fiber-based material having a first surface to a first mold to provide an opening for the first surface; setting a second mold having a second surface such that the first surface faces the second surface through a space; filling resin into the space; and relatively moving the second mold and the first mold to bring the second surface closer to the first surface, such that the fiber-based material is impregnated with the resin.

Abstract: According to embodiments of the present invention, there is provided a preform (300, 400, 900) and a mold stack (600, 1000) for producing the preform (300, 400, 900). For example, there is provided a preform (300, 400, 900) suitable for subsequent blow-molding. The preform (300, 400, 900) comprises a neck portion (302, 402, 902); a gate portion (306, 406, 906); and a body portion (304, 404, 904) extending between said neck portion (302, 402, 902) and said gate portion (306, 406, 906); the gate portion (306, 406, 906) being associated with a substantially conical shape. In an example embodiment, the substantially conical shape is selected such that to substantially homogenize angle of refraction of rays (206) used during a re-heating stage of a blow-molding process.

Abstract: The invention relates to a method of manufacture of receptacles by thermoforming and the placing of decorative banderols on these receptacles, in which a first mould block is provided, which may include at least one thermoforming chamber and which is capable of tilting between a working position for the thermoforming of the receptacles and a tilted position for the introduction of a banderol into the thermoforming chamber before the thermoforming of a receptacle in the chamber. The invention is characterized in that a second mould block is provided analogous to the first mould block and in that while one of the mould blocks is in the working position for the thermoforming of a receptacle in the thermoforming chamber of this mould block the other mould block is in the tilted position for the introduction of a decorative banderol into its thermoforming chamber before the thermoforming of another receptacle in the chamber.

Abstract: A burger press includes a base having upward extending sidewalls, a lifter sized and shaped to fit within the base, and a plunger having a handle attached to a first side of a generally planar plate that is sized and shaped to fit within the base. At least one of a second side of the plunger plate and the lifter are shaped to include a surface feature selected from a plurality of ribs and a raised portion, the plurality of ribs and the raised portion being structured to press into a burger as the burger is formed in the burger press by compressing the burger between the plunger and the lifter.

Abstract: An object of the invention is a method of forming by hot stamping pieces of complex sheeting, composed of a one-piece element comprising several parts of relatively low thickness arranged in different intersecting planes, proceeding from a blank composed of at least one layer of fibers, which have been pre-impregnated with a thermoplastic resin, in which said preheated blank is formed in an assembly composed of a punch and a die. The method includes the steps of a first phase, the part of said blank that is to comprise the bottom or analog of the piece to be obtained is pressed against the bottom of the die, then the second phase, the part or parts of the blank comprising the flanged edge or flanged edges of said piece are pressed against the sides of the die, the work piece that has been obtained in this way then being removed from the jig.

Abstract: An improved apparatus and method for forming a golf ball is described. The method includes utilizing strands of a desired material. The method employs a top, center and bottom plate. The strands are placed over the concave cavities of a lower plate and over the hemispherical protrusions of a center plate. The three plates are then placed in a press, along with a top plate, thereby forming two sets of hemispherical shells. One set of shells remains in the cavities of the top plate, and one set remains in the cavities of the bottom plate. Centers are placed inside the hemispherical shells of the bottom plate. The two sets of shells are then brought together to form a complete core. A cover may be added to complete the formation of a golf ball.

Abstract: A sheet material pressing machine for pressing a sheet material into a formed article may include a first die unit that can be opened and closed and a second die unit that can be opened and closed. The first and second die units are arranged and constructed such that closing operation of the first die unit and opening operation of the second die unit, or vice versa, can alternately occur.

Abstract: A molding apparatus includes an upper mold tool having an upper-most mold half, a lower mold tool having a lowermost mold half, and an intermediate mold tool having a first auxiliary mold half cooperating with the uppermost mold half and a second auxiliary mold half cooperating with the lowermost mold half. In a first molding step, the intermediate mold tool is positioned between the upper and lower mold tools to form a first mold cavity between the upper and intermediate mold tools and a second mold cavity between the intermediate and lower mold tools. In this molding step upper and lower material layers are individually pre-molded in the two cavities. In a second molding step, the intermediate mold tool is moved laterally away, and the upper and lower mold tools are moved directly into molding cooperation with each other. Thereby, the separately pre-molded upper and lower material layers are brought together, laminated, bonded, and molded to produce a finished, two-layered molded component.

Abstract: A method and system for molding thermoplastic sandwich material to form a deep-drawn article utilizing a unique clamping technique and mechanism are described. The method includes the steps of positioning a blank of thermoplastic sandwich material having a cellular core over a female die having an article-defining cavity defined by inner surfaces of the female die. Then, an inner portion of the blank is forced into the female die along a substantially vertical axis and against the inner surfaces of the female die to obtain deep-drawn material. During the step of forcing at least one outer portion of the blank immediately adjacent the female die is clamped to guide the at least one outer portion of the blank to travel into the article-defining cavity at an acute angle with respect to the vertical axis. Thickness of at least one side wall of the deep-drawn material is substantially the same as thickness of the blank of thermoplastic sandwich material.

Abstract: A forming station for a thermoformer in which the lower platen is lowered and moved laterally on linear bearings on the machine frame after two sheets are formed in side by side mold-plug assist tool sets so as to align the respective molds and formed sheets. The formed sheets are squeezed together with flanges on the formed sheets thereby fused together by a draw mechanism including a series of hydraulic cylinders which are connected to coupled elements carried by the upper and lower platens so as create the squeezing movement when the cylinders are pressurized. A precision control is exercised over the operation of each of the cylinders using a position sensing device associated with each cylinder to insure equal movement of the output member of each cylinder. The lower platen vertical drive is activated in correspondence with the travel produced by the hydraulic cylinders to reduce the load on a brake holding the upper platen stationary.

Abstract: A process for coating a substrate is provided which includes the following steps: (a) applying a waterborne base coat composition to a surface of the substrate; (b) applying infrared radiation at a power density of 1.5-8.0 kW/m2 and a first air stream simultaneously to the base coat composition such that a pre-dried base coat is formed upon the surface of the substrate; and (c) applying a second air stream in the absence of infrared radiation to the base coat composition such that a dried base coat is formed upon the surface of the substrate. Various embodiments of the invention are disclosed including continuous, batch, and semi-batch processes, which may include additional process steps, such as subsequent application of a topcoat. The process may be used to coat a variety of metal and polymeric substrates, for example, those associated with the body of a motor vehicle.

Abstract: A method and system for co-molding a thermoplastic material with a thermoplastic sandwich material to form a thermoplastic sandwich article having a thermoplastic inner portion are provided. In one embodiment, the thermoplastic material may be a composite material and the article is a deep-drawn article. In this embodiment, the method and system include a female die having an article-defining cavity defined by inner surfaces of the female die and an outer male die for forcing an inner portion of a blank of thermoplastic sandwich material having a cellular core and a predetermined amount of thermoplastic composite material placed on the blank into the female die along a substantially vertical axis and against the inner surfaces of the female die to obtain deep-drawn sandwich material. In a second embodiment in which the article formed is not deep-drawn, the outer male die is not required.

Abstract: A twin sheet forming system and method is used to form a hollow article, such as an automotive fuel tank, from first and second sheets of thermoplastic material. The system includes first and second loading stations, first and second heating stations, and first and second thermoforming stations in an in-line arrangement. The in-line arrangement allows the sheets to be transferred independently between the stations and the separate thermoforming stations allows the sheets to be thermoformed independently. Each of the thermoforming stations includes an upper and lower platen generally in a side by side arrangement for supporting thermoforming tools and plug assists. After heating, the sheets are independently transferred to the thermoforming stations and formed using the thermoforming tools and plug assists. The thermoforming tool and thermoformed piece in one of the thermoforming stations is then transferred to the other station, and the thermoformed pieces are fused together.

Abstract: A surface skin holding means in a lower mold for holding a folded part of a surface skin member includes a planar support frame and a support post for supporting it and prevents the folded part from a load by elevation of the support post with the elevation of an ejector plate. Also, when the support post moves upward to the uppermost position at the support frame, the support post is retained with a support-post retaining means including ball plungers to facilitate placing the surface skin member.

Abstract: A film and heated plastic blank are sized to fit over a mold cavity and a combination of said film and blank formed. The combination is positioned over the mold cavity and formed in said mold cavity into the shape of said mold cavity.

Abstract: A process for producing a plastic blow-molded part. A plastically deformable plastic parison with a first subregion and an opposite second subregion is placed between a molding element having a projecting region and a mold interacting with the molding element. A positive pressure is generated between the molding element and the first subregion and within the parison, to keep the first subregion at a distance from the molding element and to keep the first and second subregions at a distance from each other. A stretching region of the first subregion is preformed by moving the molding element in relation to an edge region in the direction of the mold and by generating a negative pressure between the projecting region and the stretching region of the first subregion. The subregions are deformed for generating a positive pressure within the parison.

Abstract: A method for producing a fibre reinforced three-dimensional product comprises depositing of long fibers in a mould consisting of a frame in which a carrier net for the fibers is suspended. The individual layers of a formed plane laminate are positioned in such a manner that only a first end is secured at a frame side. Said first ends are secured at different frame sides. In this manner it is possible, in a pressing procedure giving the product is three-dimensional shape, to obtain a virtually even distribution of the fibres, even in areas which are subjected to the longest move away from the plane original laminate. In this manner sound well-defined properties are obtained in the three-dimensional product formed.

Abstract: A compression mold and blow mold are provided in spaced relationship to each other. A preform is formed from a preform precursor in the compression mold and transferred to a blow mold while maintaining the spaced relationship between the compression mold and blow mold, and a container is formed from the preform in the blow mold.

Abstract: A method of thermoforming sheet articles includes: a) heating a sheet article to be thermoformed; b) inserting the heated sheet article into a pressure vessel having first and second vessel halves, wherein each vessel half includes a liquid chamber and a thin shell configured for forming the sheet article to a desired shape; c) closing the pressure vessels such that the sheet article is captured between the thin shells; and d) providing liquid of equal pressure in each liquid chamber to force the thin shells together to form the sheet article to the desired shape and to draw heat away from the thin shells for cooling the sheet article.

Abstract: When manufacturing a foil-wrapped breast prosthesis with a filling consisting of a curable compound, the curing is performed after placing a filled prosthesis bag formed by two joined foil sheets in a mold cavity without closing the mold cavity and maintaining vacuum at least in the beginning of the curing, whereby especially an increased degree of freedom is obtained with respect to shaping the rear side of the prosthesis, so that this, among other things, can be provided with thin edge parts for obtaining good fitting to the body. To ease the mounting of the bag and the accurate positioning of this in the mold cavity, the latter is formed in a first mold part of a shaping tool, which furthermore comprises a tightening frame having a packing, which provides an unambiguously oriented tightening of the bag when this is placed in the mold cavity.

Abstract: A method an apparatus for forming a trim insert particularly suited for automotive purposes such as a door insert includes a first carrier which holds the substrate and a second carrier which holds a material larger than the substrate. A drive assembly is connected to the first and second carriers to position the first and second carriers. A positioner positions the substrate from the first carrier and together with the substrate of the material on the second carrier. An edge folder is used to fold the material around the substrate to contact an adhesive on the second side of the substrate. The second carrier may have a contoured mold to form a desired wrinkle pattern in the material prior to folding the material.

Abstract: Equipment for producing a component obtained from two sheets of thermoplastic material joined together includes an upper die, a lower die and a passage for delivering a compressed jet of air between the two sheets. The equipment further includes a slide which can move at right angles to the closure direction of the two dies and has a working sheets are urged against a shaping surface formed by the working surfaces of the upper and lower dies and of the slide by the effect of the delivery of compressed air.

Abstract: A device for tucking covering materials into a formed component comprises a support mold for the formed component which supports covering materials such as textiles, on its upper face for insertion into the formed component at a ring-formed tucking groove outward from the outer periphery of the upper face. The device has a tucking mold that is positioned at the outer periphery of the support mold for the formed component, and that has a ring-formed tucking blade which is capable of tucking an edge of the covering materials into the tucking groove of the formed component supported by the support mold for the formed component. An outer support mold for an outer periphery is positioned at the outer periphery of the ring-formed tucking mold, and supports the outer periphery of the formed component supported by the support mold for the formed component.

Abstract: A process for producing a fiber-reinforced thermoplastic resin molded article including: (a) projecting a sheet-holding member from a cavity face of a lower mold towards a cavity face of an upper mold, (b) placing a heated fiber-reinforced thermoplastic resin sheet on the sheet-holding member, (c) closing the upper and lower molds, (d) in the step of closing the upper and lower molds, putting the sheet-holding member into the lower mold before the cavity face of the upper mold contacts with the resin sheet, (e) maintaining the upper and lower molds in a closed state, and (f) opening the upper and lower molds and removing the molded article. A fiber-reinforced thermoplastic resin molded article which has a good surface appearance and, if any, whose protrusions such as ribs and bosses are sufficiently filled with thermoplastic resin and reinforcing fibers, can be produced, without using an additional thermoplastic resin sheet and without repeating the molding process.

Abstract: Disclosed is a process for producing a crimp-bonded fibrous cellulosic laminate. The process includes the steps of: 1) providing at least two superposed plies of a fibrous cellulosic material; 2) passing the superposed plies through a crimp roll arrangement including a rotating crimp element and a rotating anvil element; and 3) applying a pressure load against the rotating elements sufficient to crimp bond the fibrous cellulosic material plies into a laminate. The crimp element has protruding members configured in a discontinuous pattern aligned on an axis that is parallel to the cross-machine direction to provide a substantially continuous uniform area of localized surface contacts between the rotating crimp and anvil elements across the width of the plies. Also disclosed is an overall crimp-bonded fibrous cellulosic laminate and an apparatus for crimp-bonding multiple superposed plies of a fibrous cellulosic material.

Abstract: A ceramic laminate, which is obtained by stacking ceramic green sheets provided with conductor films distributed on central portions along surface directions thereof, is charged in a die assembly. The die assembly includes an upper punch for pressing a first major surface of the ceramic laminate, a frame which encloses peripheries of the upper punch and the ceramic laminate, and a base plate for pressing a second major surface of the ceramic laminate in a manner opposite to the upper punch. In order to prevent the conductor films from undergoing misregistration toward peripheral edge portions of the ceramic laminate due to flowing of ceramic caused by a pressure difference between the portions provided with the conductor films and those not provided with conductor films, the upper punch is divided into an outer peripheral portion which comes into contact with the peripheral edge portions of the ceramic laminate and a body portion which comes into contact with its central portion.

Abstract: Blow molding and thermoforming processes in which a mold system having low thermal inertia mold-halves provided with heating and cooling systems is utilized for producing plastic articles coated with surface-upgrading films of high melting polymers or polymers exhibiting a high scratch resistance to improve mechanical characteristics of the molded article. The films may be positioned, before the mold is closed, close to the low thermal inertia mold-halves. Rapid heating and rapid cooling of the mold-halves in contact with the surface-upgraded films permit strength adhesion of the upgrading material to the surface of the molded article.

Abstract: A turnup bladder for use in tire making as an outside surface coating which is a release coating that also imparts improved durability and cut resistance. This outside surface coating is an elastomeric polymer blend containing from about 10 to about 60, preferably from about 40 to about 60 parts by weight of polyvinyl chloride and from about 40 to about 90, preferably about 40 to about 60 parts by weight of an acrylonitrile-butadiene rubber per 100 parts of polymer wherein the acrylonitrile-butadiene rubber comprises from about 25 to about 40 parts by weight of acrylonitrile and from about 60 to about 75 parts by weight of butadiene per 100 parts of said acrylonitrile-butadiene rubber.

Abstract: A helical tooling process for economical production of high quality, high temperature thermoplastic composite tubes uses a mandrel or external cylinder to resist a force applied from a helical member for consolidation pressure, compaction, and part removal. The helical too long process facilitates the prescription of a desired consolidation pressure and diameter, independent of temperature. The advantages of the disclosed process include improved produced part quality, increased process flexibility, and enhanced economic efficiency. These advantages stem from the device being easily controlled and fabricated and having a low thermal mass.

Abstract: Mechanically robust star couplers of polymer optical waveguides having low insertion losses and small fluctuations between the individual output fibers are obtained if polymer optical waveguides are arranged in parallel in the middle region of an apparatus and fused with one another under pressure and with the supply of heat. The optical cladding of the polymer optical waveguides has been previously removed. The method is easy and cost-effective. The apparatus is composed of a lower part with a channel recessed therein and an upper part with a male die located therein, which male die corresponds in its shape to the shape of the channel.

Abstract: An apparatus for welding tubular components of thermoplastic material. The apparatus includes a heating device for heating the ends of the tubular components to be welded together until the melting range of the thermoplastic material is reached. Two outer support rings which are slid toward each other after the thermoplastic material has melted and an expandable inner support member ensure that welding pressure is built up, so that a welded connection can be obtained which is strong and free of welding beads.

Abstract: A molding device for molding or shaping a plastically moldable sheet includes a lower mold having a recess which extends along an inner wall of the lower mold, an upper mold having a raised portion which is neatly received in the recess of the lower mold when the upper mold is properly seated on the lower mold to press the sheet, and a sheet mover including a rotatable member which is rotatably arranged on the outer wall of the lower mold and partially exposed to the recess of the lower mold.

Abstract: A pre-forming technique for web material utilized to make flexible pouches for fluent products comestibles and non-comestibles in form-and fill equipment of well known type characterized by the initial stretching displacement of each web from its normal plane and in a configuration corresponding to the ultimate spout configuration prior to forming of the pouch with the spout therein, thereby preventing undesired blockage of the spout by unintended adherence of the packaging film in the spout zone during sealing operations. The technique is especially desirable in pouches having a unique and complex reversely curved discharge passageway.

Abstract: A mold for making steering wheels by winding resin impregnated fibers. The mold includes a hub support pedestal to support a hub about which fibers are wound, means having a rim forming recess, a plurality of ramps connecting said means having said rim forming recess to said pedestal and means for pressing said fibers against said ramps.