Abstract: A bottle having substantially no strain due to fluidized orientation in the bottom portion thereof which is homogeneously and uniformly drawn, and, as a result, exhibiting improved shock resistance and buckling strength in the bottom portion, featuring excellent resistance against environmental cracking at the center in the bottom portion, without developing crazing or whitening during the preservation, and offering excellent appearance. The bottle is formed by biaxially stretch-blow-molding a thermoplastic resin, and has a mouth portion, a shoulder portion, a barrel portion and a bottom portion, said bottom portion without being substantially affected by the residual strain due to orientation by fluidization.

Abstract: Process and device for the extrusion-moulding of hollow bodies made of a thermoplastic, comprising the extrusion of a tubular parison, its deposition via the use of a robot arm in a preforming device which takes it into a lower part of a mould in which the parison is blow-moulded in order to produce the hollow body. Certain steps of the process may be carried out in parallel. This process and this device are very suitable for producing hollow bodies of complex three-dimensional geometry with a high productivity.

Abstract: A microcellular injection blow molding system and method, and microcellular blow molded articles produced thereby, are described. The system is equipped to extrude microcellular material that changes in thickness, material density, or both in the machine direction while maintaining a constant pressure drop rate during nucleation just prior to extrusion, providing the ability to produce consistent uniform microcellular material independent of material thickness. The systems and methods are particularly useful in production of strong, thin-walled, non-liquid-permeable, opaque containers that do not contain reinforcing agent, chromophore, or residue of chemical blowing agent or chemical blowing agent by-product.

Abstract: A blow molding method includes steps of moving a split mold to a parison receiving position where a parison is supplied and receiving a parison, closing the split mold, performing blow molding at a blow molding position, and opening the split mold at a product discharge position and thereby discharging a product. The method further includes steps of: sequentially reciprocating each split mold in trains of split molds provided opposed to each other across the parison receiving position to and from a position opposed to the parison receiving position; and sequentially reciprocating the split mold disposed at the position where the split mold is opposed to the parsion receiving position to and from the parison receiving position for performing blow molding. There is also provided a blow molding apparatus for carrying out this molding method.

Abstract: A method of making a package that includes the steps of blow molding a hollow plastic container, including blow molding a finish and a moil or dome that extends from the finish, and trimming the moil from the container finish so as to leave a conical flange extending inwardly and upwardly from the finish terminating in a smooth trimmed surface. A closure is provided having a base wall and a peripheral skirt. A liner is secured to the base wall within the skirt, and has a sealing surface spaced from the skirt. The closure is secured to the container finish in such a way that the container flange extending from the finish is deformed radially inwardly and axially downwardly by a peripheral portion of the liner so as to bring the trimmed surface of the container flange into abutment sealing engagement with the sealing surface of the liner.

Abstract: A method for controlling the hang time of a tubular parison formed from a thermoplastic resin is provided with a second higher melting thermoplastic resin as an additive, and blow molding the resulting resin at a temperature below the glass transition temperature (Tg) of the higher melting component. In the case where the lower melting base resin is PBT and the higher melting additive resin is PET, the temperature of molding is below the Tg of the PET additive.

Abstract: A method of blow-molding synthetic resin articles in which an image of an actual article is produced by blow-molding is displayed. A wall thickness control curve on a display screen of a computer controlling the blow-molding machine and critical locations of the curve are graphically reproduced on the image of the article.

Abstract: A squeezable tube-shaped plastic container (10, 100) having a one-piece construction formed by extrusion blow-molding techniques. The container (10, 100) has a retractable end wall (26, 126) which is positionable into an outwardly projecting position and an inverted position. The end wall (26, 126), as blown, is in the outwardly projecting position and is thereafter inverted so that a tamper indicating covering (28, 128) can be attached to the end (14, 114) of the container (10, 100) thereby sealing the end wall (26, 126). The inverted end wall (26, 126) permits the container (10, 100) to be free standing on the standing ring (20, 120). In use, the flexible sidewall (12, 112) of the container (10, 100) is squeezed to snap the end wall (26, 126) from the inverted position to an outwardly projecting position to enable ready access to a dispensing opening (32, 132) on the end wall (26, 126).

Abstract: Process for manufacturing a breathing bag including a connector portion and a distensible portion including the steps of providing moldable material, forming a portion of the moldable material into the connector portion of the breathing bag and forming another portion of the moldable material into the distensible portion of the breathing bag. The moldable material may be provided by extruding a parison of thermoplastic material; the connector portion of the breathing bag may be formed by compression molding and the distensible portion of the breathing bag may be formed by blow molding or blow and vacuum molding; such distensible portion and connector portions are formed or molded integrally. A breathing bag made by such process.

Abstract: A plastic blow molding system (20) and a method for blow molding utilize an in-mold labeler (24) and a method for in-mold labeling a rotary plastic blow molding machine (22) includes a dispensing assembly (38) having a dispensing wheel (42) that is rotatably mounted on a base (40) and supports a plurality of dispensing head assemblies (46) each of which includes a support (48) and a dispensing head (50). An actuator (56) including first and second cam mechanisms (58, 64) moves the support (48) of each dispensing head assembly (46) along the rotary path of movement of an adjacent open mold (30) of the blow molding machine and angularly positions the support in alignment with a moving mold parting plane of the adjacent open mold in a manner that permits high speed operation of the in-mold labeling. Label transfer apparatus (160) provides high speed labeling of the dispensing assembly.

Abstract: In a process for making a multi-chambered container that is lightweight, relatively inexpensive to produce, and that requires less external reinforcement against flexure than conventional multi-chambered containers do, a parison is heated and inflated to form the container. Further, first and second pinched-in areas are fashioned in the sidewall of the container. The first pinched-in area includes first and second wall portions that extend inwardly toward an interior of the main body of the container, and a first end wall portion connecting the first and second wall portions. The second pinched-in area includes third and fourth wall portions that extend inwardly toward an interior of the main body, and a second end wall portion connecting the third and fourth wall portions.

Abstract: A device for extruding and blow-molding thermoplastic tubular components with an extrusion head. The head has a central stem which is perforated in an axial direction. A distribution body lies radially around the stem so as to radially distribute the stream of thermoplastic material. An annular extrusion port is arranged downstream. The invention allows to avoid stagnations of material and to easily adapt the device to various types of thermoplastic material.

Abstract: A mold assembly for blow molding plastic articles is provided having an upper mold member, a lower mold member and a lower support member. The lower mold member is preferably a relatively lightweight plate having a generally centrally located molding cavity matingly matched with an upper molding cavity in the upper mold member. The lower mold member is moved horizontally and optionally vertically beneath an extrusion head as a molten parison is extruded. The lower mold member is then transported to, and positioned within, the lower support member. The upper mold member is then closed over the lower mold member and lower support to close the mold assembly. The molten parison is then expanded in the mold cavity. After the molding operation, the plastic part may be removed and the lower mold member may be cooled by immersion in a cooling fluid. The apparatus to move the lower mold member during extrusion of the parison and to the molding station may be a robotic arm.

Abstract: A mold for use in blow molding has a first fixture and a second fixture. The fixtures correspond to typical mold halves or portions. The first fixture includes drive means, typically in the form of pins, while the second mold fixture has drive receiving means, typically in the form of holes, to receive the pins. When the second mold fixture is in registration with the first mold fixture, the pins or other drive means are extended to lock and locate the two fixtures together. Blow molding can then be carried out without the need of the typical blow molding presses.

Abstract: A method of fabricating a dual-chamber plastic container in an injection/extrusion/blow-molding operation, in which a container finish is first injection molded. The finish mold tooling is then moved axially upwardly as plastic continues to be extruded through extrusion tooling in which an orifice bushing surrounds a mandrel tip. The mandrel tip has a passage through which plastic is extruded to form a wall that divides the extruded tube into separate chambers. Blow molds are brought in from both sides to capture the extruded tube, and air is blown through a passage in the finish mold tooling to blow the tube chambers to the confines of the mold.

Abstract: A reduced flash molding process and apparatus useful for a variety of parts, especially flat plastic panels, reduces trimming time, regrind waste, increases production speeds, reduces energy consumption, and reduces part weight. The reduction in flash is made possible by providing side members which close before molding material reaches them. Flash still occurs at the ends of the mold, but is eliminated from the sides. Because the parison can be more carefully managed during molding, the mold can be placed closer to the parison extrusion die, thereby reducing parison swell and sag and permitting more accurate filling of all areas within the mold geometry.

Abstract: A portion of a medical device formed from a melt blend of a polyesterimide anhydride liquid crystal polymer and at least one other polymer.

Abstract: A forced exhaust pipe is connected to an exhaust pipe connected with a cross head so that a negative pressure may be formed within an air passage so as to effect rapid control of air pressure (amount) within a parison, thereby stabilizing the air pressure within the parison. A parison stabilizing method and a system therefor for use in a hollow formation molding machine, according to the present invention, are so formed that a forced air-discharge is carried out through an exhaust pipe connected with the air passage formed within the cross head, so that a negative pressure is formed within the air passage. In this way, the above-mentioned system can effect quick control of an air pressure (amount) within the prison during a pre-blowing treatment, shorten a time period necessary for determining molding conditions, without having to increase the inner diameter of the air passage.

Abstract: A preform for forming a hollow blow molded plastic container is provided with a closed base, a multilayer body-forming portion extending from the base, and an open neck portion that extends from the body portion. The body portion includes a co-extruded inner liner that includes (a) an innermost polymer layer, (b) at least one oxygen-scavenging layer, and (c) at least one high-oxygen barrier layer for retarding the migration of gases and moisture therethrough. An outermost layer is molded over the inner liner to form a preform. The liner and preform are formed so that the wall thickness of the individual layers can easily be varied along their lengths, however, at any given point along the length of the co-extruded liner (a) the wall thickness of the innermost polymer layer is less than 0.50 of the wall thickness of the inner liner and (b) the wall thickness of the inner liner is less than 0.25 of the total wall thickness of the preform body portion.

Abstract: A blow molding machine capable of relatively high production rates at relatively low cost is provided. The blow molding machine comprises a base, a reciprocating shuttle mechanism supported by the base, a single blow molding station supported by the base, and adapted to receive a parison for forming the hollow article at the blow molding station, a pair of cooling stations supported by the base on flanking sides of the blow molding station, a pair of blow pin carriages spaced from one another, each of which is connected to the shuttle mechanism and is indexable to the blow molding station and to one of the cooling stations. Each blow pin carriage can comprise one or more blow pin assemblies that are movable independent of the shuttle mechanism between a rest position and a blow position.

Abstract: At least one blow-molded plastic container and one compression molded lid are simultaneously produced in a blow mold. Preferably, the method and apparatus utilize a mold capable of simultaneously receiving a pair of extruded parisons. One of the parisons is utilized to produce a pair of aligned container bodies and the other of the parisons is utilized to form a pair of aligned closures. In this manner, a container and closure combination can be manufactured having perfect color matching and can be readily recycled in its entirety. In addition, the method and apparatus according to the present invention significantly reduces tooling costs and required machine capitol.

Abstract: The present invention is a hollow article with an integral impact absorbing rib and the method of manufacturing the same. The apparatus is a hollow article made of thermoplastic resin and integrally formed by blow molding, comprising a first wall and a second wall confronting across a spacing. There is an integral rib between the first wall and the second wall, wherein the integral rib comprises a flat rib between the walls and one or more hollow ribs adjacent to each of two side ends of the flat rib. The impact absorbing rib is disposed at intervals and in an impact action direction. The rib is uniform in shape, dimensions and wall width, and free from reduction of wall width of the inner rib, yet possessing proper structural support and mechanical strength, and excellent in impact absorbing performance.

Abstract: A blow-molded plastic container and reinforced lid are simultaneously produced in a blow mold. A lid is reinforced by having a portion of the lid formed by blow molding techniques and another portion of the lid formed by compression molding techniques. The container and lid combination, a method for making the combination and apparatus for making the combination are provided.

Abstract: The present invention provides compositions useful as a barrier layer in, for example, packaging products. The compositions generally comprise a blend of (i) a polyester resin, preferably an aromatic polyester resin such as polyethylene terephthalate (PET) and (ii) a polyamide material (e.g., MXD6). The blend optionally may further comprise (iii) an oxygen scavenging material. The present invention also provides containers (e.g., containers formed by expansion of preforms) having a multilayered body-forming portion including: a layer comprising the aforementioned blend; and one or more layers of a formable polymer composition. The present invention also provides methods of making such containers.

Abstract: A method for manufacturing a hollow molded article by extruding a parison of an ethylene/&agr;-olefin copolymer whose density, melt flow rate, melt tension, decane soluble matter content and melting point are controlled within particular ranges, while controlling the resin pressure in the extruder within a certain range, and then blow-molding such parison. This method makes it possible to improve the drawdown characteristic of the parison and to provide a container showing high mechanical strength and only a small amount of extraction into the contents of the article.

Abstract: A molding apparatus has a pair of mold halves having faces engageable together to form a nonstraight passage having an intake end and an output end, extruder means for forming a hollow plastic preform and feeding it to the intake end of the passage, pump means connected to the output end of the passage for drawing gas therefrom and thereby applying drawing the preform through the passage, and a seal carried on one of the faces, extending along the passage, and engaging the other of the faces for preventing gas flow between the faces into the passage when the mold halves are closed together.

Abstract: A method for producing an insulated container using a modified blow molding process. A multi-layer parison is created that includes inner layer, a thermoplastic foamed resin central layer, and an outer layer. The parison is clamped between halves of female mold, and a gas, e.g., air, is briefly blown into the interior of the clamped parison section to expand the parison section to substantially against the outer walls of the mold. Vacuum is applied through the mold walls to hold the clamped parison section in place, and the gas pressure is released. By removing the gas pressure, the clamped parison section is permitted to mold without internal pressures. That is, the vacuum holds the parison section in place, without air pressure crushing, or pressing against, the inner layer of the parison. In this manner, the foamed central layer is free to expand.

Abstract: An apparatus for blow-molding a parison, the apparatus comprising a mold defining a cavity into which a parison may be introduced for blow-molding, a die for extruding the parison into said cavity, and means for blowing a gas around the outside of the parison in said cavity, the means for blowing a gas around the parison comprising (a) a distributor located at the entrance of the mold cavity for emitting gas around the circumference of the parison and (b) means for injecting gas directly into said distributor, wherein during use the die is separated from the distributor by unenclosed space.

Abstract: An apparatus for producing hollow bodies, in particular bottles and similar containers provided with an evacuation opening, of thermoplastic includes a lower machine part (2) and a beamlike upper machine part (7). The lower machine part (2) is equipped with at least two blow molds (3a, 3b, 3c), each provided with a cavity (4). A number of blowing and calibration mandrels (8a, 8b, 8c) corresponding to the number of blow molds is disposed on the beamlike upper machine part (7) disposed above the lower machine part (2). One blow mold is assigned to each blowing and calibration mandrel. The blowing and calibration mandrels (8a, 8b, 8c) can be axially fed jointly toward the blow molds (3a, 3b, 3c) and can be moved with their calibration region into an orifice (5) of the cavity (4) until an annular shoulder (9) of the blowing and calibration mandrels (8a, 8b, 8c) comes into contact with a counterpart face (6) on the associated blow mold (3a, 3b, 3c).

Abstract: At least one blow-molded plastic container and one compression molded lid are simultaneously produced in a blow mold. Preferably, the method and apparatus utilize a mold capable of simultaneously receiving a pair of extruded parisons. One of the parisons is utilized to produce a pair of aligned container bodies and the other of the parisons is utilized to form a pair of aligned closures. In this manner, a container and closure combination can be manufactured having perfect color matching and can be readily recycled in its entirety. In addition, the method and apparatus according to the present invention significantly reduces tooling costs and required machine capitol.

Abstract: A separator for use in zinc/bromine secondary batteries comprising a polyethylene having an overall viscosity average molecular weight of not less than 350,000 and not more than 2,000,000 containing not less than 10 wt. % and not more than 80 wt. % of a polyethylene having a weight average molecular weight of 1,000,000 or more and fine particulate silica, wherein the ratio by weight of polyethylene/fine particulate silica is more than 1 and less than 1.5, and the ratio of the number of silicon atoms (Si) to the number of carbon atoms (C), Si/C, exposed on the surfaces of said separator excluding cross-sectioned surfaces thereof is not less than 0.01 and less than 0.2 as determined by X-ray photoelectron spectroscopy (XPS).

Abstract: A blow-molded plastic container and reinforced lid are simultaneously produced in a blow mold. A lid is reinforced by having a portion of the lid formed by blow molding techniques and another portion of the lid formed by compression molding techniques. The container and lid combination, a method for making the combination and apparatus for making the combination are provided.

Abstract: The present invention relates to catheter balloons for medical devices. In particular, the present invention provides biaxially oriented semi-compliant catheter balloons comprising acrylonitrile polymers, acrylonitrile copolymers, and acrylonitrile blends, and methods of making same. The catheter balloons provided herein exhibit relatively high tensile strength, controlled compliance, reduced tendency for pinholing, ease of coating with and of bonding to other compounds, as well as resistance to moisture.

Abstract: Solidified hollow, preferably long blow molded, articles made from at least one thermoplastic composition comprising short aramid fibers. Processes and compositions for making such articles. Methods of improving the melt strength of polymer compositions by introducing therein an effective amount of short aramid fibers. Methods of making blow molded articles from polymer compositions not suited for blow molding.

Abstract: A radially expandable device having a body constructed of a generally inelastic, expanded fluoropolymer material is described. The body is deployable upon application of a radial expansion force from a reduced diameter, collapsed configuration to an expanded configuration having a pre-defined and fixed increased diameter. The body has a singular, unitary construction of generally homogenous material that is characterized by a seamless construction of expanded fluoropolymer material, such as expanded polytetrafluoroethylene (ePTFE), and is preferably constructed through an extrusion and expansion process. The body is further characterized by a microstructure of nodes interconnected by fibrils in which substantially all the nodes of the body are oriented generally perpendicularly to the longitudinal axis of the body.

Abstract: The method involves making a hollow blow molded thermoplastic article having an integral handle. An unblown preform of polyethylene terephthalate (PET) is inserted into a blow mold and thereafter stretched by a stretch rod. Blow gas is then injected into the interior of the preform when the blow mold is closed and the preform is at a stretch temperature. After the preform is blown into the shape of the bottle in the mold, blow gas is discharged from the stretch rod onto an interior wall surface where the handle is to be formed. Movable mold segments are then advanced within the blow mold from a first retracted position to a second position thereby compressing an interior wall surface of the article into contact with a facing interior wall surface of the bottle to bond the surfaces at an elevated temperature and form an integral handle extending from the exterior wall of the blow molded article.

Abstract: A blown plastic container that includes a hollow plastic body, an integral blow-molded neck and an integral blow-molded finish with a radially outwardly extending blow-molded thread or bead for retaining a closure on the finish. Reinforcement is provided between the thread or bead and a ledge on the finish to prevent collapse of the finish when a closure is applied to the finish. In one form, this reinforcement includes blow-molded axial columns extending radially outwardly. In another form, the reinforcement includes geometric depressions. The reinforcement preferably is disposed circumferentially at equal angular spacing. When the container is trimmed, the finish may have an annular frustoconical radial ledge spaced from the open end of the finish. The reinforcement extends between the ledge and the lowest thread or bead, between the thread or bead, or for the full height of the finish above the ledge.

Abstract: Shuttle blow molding apparatus having an extruder or a blow head for substantially continuously emitting a thermoplastic material in tubular or parison form at a moldable temperature downwardly along a vertical axis. A finite length of the thermoplastic material is grasped by a first mold set, which then moves downwardly with respect to the extruder or blow head to provide clearance for a second mold set to move to a position to grasp a second finite length of the emitted thermoplastic. The first mold set is then moved horizontally away to permit the emitted thermoplastic length therein to be blown into a hollow article, and thereafter removed from the first mold set that is permitted to return and engage an other finite length of the thermoplastic material. The second mold set follows the first mold set in a path of travel traced by the first mold set.

Abstract: A boot comprising an upper portion, an outersole portion, an optional midsole/wedge portion and a shell portion, wherein the shell portion is produced by the blow molding process. The shell portion may contain a midsole/wedge element inside or outside of its volumetric shape and it may also contain a pre-molded outersole which is replaced into the blow mold. The shell portion can be produced with thickness as little as 0.25 mm and weight as low as 25 grams. The shell portion may be constructed of any material that is extrudable. The shell portion is produced with mold cavities, but no mold core. The shell portion may be flocked internally with textile fibers. A pair of shell portions can be simultaneously produced from a single extrusion of material.

Abstract: A process for manufacturing a thermoplastic article which comprises the steps of:

Abstract: A liquid container includes a substantially prism-like outer wall provided with a substantial air vent portion and having a corner formed by 3 surfaces: an inner wall having outer surfaces equivalent or similar to inside surfaces of said outer wall and a corner corresponding the corner of said outer wall, said inner wall defining a liquid accommodating portion for containing liquid therein, said inner wall further having a liquid supply portion for supplying the liquid out of said liquid accommodating portion; wherein said inner wall has a thickness which decreases from a central portion of the surfaces of the prism-like shape to the corner, and said outer wall and and said inner wall are separable from each other.

Abstract: A blow molding method for forming a hollow resin product comprises a parison extruding step, a protrusion abutting step and a confronting rod abutting step. In the extruding step, a parison is extruded from a die head towards a position interposed between a pair of molding portions. Each molding portion has a mating surface and a parison-cutting-protrusion erected from the mating surface. In the protrusion abutting step, the protrusions are abutted from each other. In the confronting rod abutting step, the spherical surfaces formed at tip ends of the rods protruded from the mating surfaces of the molding portions are abutted from each other. These steps are simultaneously executed, to thereby remove a flash from a product when the molding portions are closed. In addition to this, the rods mounted on one of molding portions are mounted on the same so as to be adjustable in its protruding length from the mating surface.

Abstract: A method of manufacturing and handling parts for a packaging container comprises the steps of producing a number of tops in the form of pairwise reversed tops, separating the pairs one from another and providing them with closure arrangements. The tops may be manufactured by blow molding an extruded hose of thermoplastic material.

Abstract: Shuttle blow molding apparatus having an extruder for substantially continuously extruding a thermoplastic material in tubular form at a moldable temperature downwardly along a vertical axis. A first finite length of the thermoplastic material is grasped by a first mold set, which then moves outwardly and downwardly with respect to the extruder to provide clearance for a second mold set to move to a position to grasp a second finite length of the extruded thermoplastic tube. The first mold set is then moved horizontally away to permit the finite length of thermoplastic tube therein to be blown into a hollow article, and thereafter removed from the first mold set at a second position of the first mold set.

Abstract: A blow molding machine for producing three-dimensional low-waste articles including at least one horizontally separated blow mold formed of upper and lower half-molds, a device for vertically displacing at least one of the upper and lower half-molds between an open mold position in which the upper half-mold is spaced from the lower half-mold, and a closed mold position in which the upper and lower half-molds engage each other, a device for locking the upper and lower half-molds in the closed position, and a device for pivoting the upper half-mold in the open mold position about a horizontal axis by substantially 90° and/or displacing the upper half mold in a horizontal plane.

Abstract: An automotive headliner assembly includes a substrate that is configured to mount to a vehicle in a position generally covering a lower surface of a passenger compartment roof. Cavities are formed into the substrate between the upper substrate surface and the lower substrate surface to provide receptacles for electrical wiring, fiber optic cabling, EA foam and the like or to form a duct for directing air flow. Each of the cavities is integrally formed in the substrate. A foam layer is adhered to a lower surface of the substrate and the decorative cover is adhered to a lower surface of the foam layer. The headliner is constructed by first extruding molten parison into a blow mold shaped to complement the desired exterior contours of the headliner substrate to be formed. The cavities are then formed in the molten parison by inserting at least one blow pin into the parison and injecting pressurized gas.

Abstract: This invention relates to a method and a device for producing blow-molded plastic hollow bodies. The device is of an enhanced design which avoids the shortcomings of traditional blow-molding technology. The extrusion die according to this invention is adjustable for different settings to produce different, partly overlapping wall thicknesses of the parison blank in order to compensate for the insufficiencies inherent in blow-molding and to obtain a finished blow-molded product with as consistent and uniform a wall thickness as possible, with an overlay, for instance in vertical wall sections, of evenly spaced longitudinal ribs. A technical concept is introduced whereby, as a novel process, the two conventional measures used to achieve a uniform wall thickness in the finished blow-molded hollow body are complemented by an additional, third step which makes it possible to produce containers whose hollow bodies are provided with targeted, intentional and reproducible irregular wall-thickness patterns.

Abstract: A method for manufacturing a container. The method includes the steps of providing main body dies, passive dies, active dies and a supporting column, followed by providing a semi-solidified flexible material in a considerably solvent state in the form of a tubular blank that is positioned and squeezed on the supporting column. The dies are opened and closed so that the active dies will squeeze the blank against the supporting column. Air is blown into the blank to enable the blank to adhere onto a cavity-shaped wall that is surrounded by the main body dies, the passive dies and the active dies. Air blown into the blank is released and the active dies initiate a first movement upwardly in synchronization with the supporting column. The active dies link-up with the passive dies to conduct a second movement upwardly to enable the active dies to drive the blank to deform.

Abstract: A radially expandable device having a body constructed of a generally inelastic, expanded fluoropolymer material is described. The body is deployable upon application of a radial expansion force from a reduced diameter, collapsed configuration to an expanded configuration having a pre-defined and fixed increased diameter. The body has a singular, unitary construction of generally homogenous material that is characterized by a seamless construction of expanded fluoropolymer material, such as expanded polytetrafluoroethylene (ePTFE), and is preferably constructed through an extrusion and expansion process. The body is further characterized by a microstructure of nodes interconnected by fibrils in which substantially all the nodes of the body are oriented generally perpendicularly to the longitudinal axis of the body.

Abstract: A synchronous moving and sealing apparatus for a blow-molded product is disclosed. It mainly comprises a vertical moving mechanism and a sealing mechanism. The sealing mechanism has a clamping gear activator and two pulling rod activators with two pulling rods. The sealing mechanism and the plastic material will move down. The pulling rods and two clamping rods makes this edge closed approximately as a straight line and will seal the edge of the plastic material synchronously. So, a higher quality of the final blow-molded product is obtained and the safety of the operator is enhanced.