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5718853 |
Preconditioning preforms on a reheat blow molding system
A system for preconditioning preforms prior to reheating the preforms for blow molding, includes an area for receiving finished preforms, a conveyor for moving the preforms from the area and to a...
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5714109 |
Method and apparatus for supplying conditioned air to a blow-molding oven
A method and apparatus which allows blow-molded plastic containers to be manufactured at high rates of production independent of ambient environmental conditions. The method and apparatus eliminate...
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5702734 |
Take-out and cooling apparatus
A molded parison handling apparatus for removing hollow plastic parisons used in the manufacture of oriented plastic bottles from an injection molding machine includes a base having an arm coupled...
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5688466 |
Alignment assembly for heating lamps of a blow molding apparatus and method of use
An alignment assembly for aligning heating lamps in a heating lamp assembly intended for use in an oven of a blow molding machine, the heating lamp assembly having a chassis removably positionable...
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5683729 |
Apparatus for making containers by blow moulding plastic parisons
A machine manufactures containers such as bottles, pots, or other hollow bodies by thermal conditioning and blow molding of plastic preforms. The machine has two portfolio molds on the periphery of...
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5681521 |
Process and equipment for heat treatment of the body of a preform or of an intermediate-stage container made of a thermoplastic material
The invention relates to the thermal treatment of the body of a preform (1) or of an intermediate container made of a thermoplastic material during a process for manufacture of the container, such...
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5679306 |
Method of molding preform in injection stretch blow molding
A method of molding a preform in an injection stretch blow molding, wherein a gas is entered into the boundary between the preform and an injection core so that the gas pressure causes the preform...
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5645870 |
Blow molding apparatus having a cylindrical hub
A rotary plastic blow mold machine including a cylindrical hub rotatably mounted about an axis. A plurality of mold assemblies including an upper mold and a lower mold movable axially toward one...
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5641451 |
Method for forming heat-resistant containers
A heat-resistant container forming method includes a step of thermally shrinking a primary blow molded article in a heating furnace before secondary blow molding the primary blow molded article...
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5631030 |
Cooled injection core for an integrated injection blow mold machine
An integrated plastic injection mold and blow mold machine includes an injection mold assembly having a cooled exterior mold assembly connected to a plastic injector for injecting plastic. A cooled...
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5618489 |
Apparatus and process for blow molding containers
An apparatus and method for blow molding hot-fill containers by a double blow process while utilizing a single blow molding wheel. The apparatus has multiple stations including preheat station for...
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5611987 |
Process for producing biaxially drawn plastic bottles having excellent heat resistance
A process for producing biaxially drawn plastic bottles having excellent heat resistance and an apparatus therefor. The process comprises a step of biaxially drawing and free blow-molding the...
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5599567 |
Cooled thread split inserts for injection molding preforms
Thread split inserts used in injection molding bottle preforms of polyethylene terephthalate (PET). Each insert has a curved inner surface. A pair of inserts are mounted in the mold facing each...
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5589205 |
Apparatus for manufacturing hollow resin products
An apparatus for manufacturing hollow resin products. The apparatus includes an extruder for extruding a tubular resin material and cutting the material into a parison with a specified length; a...
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5589114 |
Temperature regulating system, method and apparatus
A temperature regulating system for a cyclic processor that consists of a mould having at least one internal passageway for receiving temperature regulating fluid, preferably coolant water....
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5582788 |
Method of cooling multilayer preforms
Method of making multilayer preforms which resist delamination and in a reduced cycle time. A first array of preforms are molded onto a first array of cores in an associated array of mold cavities,...
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5578263 |
Parison molding method with reduced molding cycle times
A parison injection molding apparatus and method injection molds parsons, transfers them to cooling stations and then ejection stations. While at the injection molding station, cooling stations and...
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5578262 |
Injection blow molding having reduced molding cycle times
A parison injection blow molding apparatus and method injection molds parisons, transfers them to cooling stations then to orient-stretch blow stations and thereafter ejection stations. While at...
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5573791 |
Apparatus for forming a parison having multiple resin layers
An apparatus forms multiple resin layered parisons that are cooled or blown into bottles. The individual resin layers are injection molded in sequence and the formed parisons are transferred to...
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5560943 |
Apparatus for annealing and blowing a thermoplastic biaxially oriented container
An apparatus for annealing biaxially oriented articles is disclosed, particularly blow molded articles prepared from unique tapered preforms which are immediately annealed using warm fluid in a...
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5549468 |
Heating lamp assembly
An alignment assembly for aligning heating lamps in a heating lamp assembly intended for use in an oven of a blow molding machine, the heating lamp assembly having a chassis removably positionable...
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5540879 |
Method and apparatus for manufacturing biaxially oriented, thermally stable, blown containers
A method of producing a blow-molded PET container suitable for hot-filling includes the steps of injection molding a preform, blow-molding the preform into a primary molded article larger than the...
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5516274 |
Stretch blow molding machine with movable blow mold assembly
A blow molding machine configured to receive plastic parisons and output blow mold formed containers has a support frame having a trackway. A parison conveyor is attached to the support frame, and...
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5510079 |
Method of blow-molding biaxially oriented polyethylene terephthalate resin bottle-shaped container
A method of blow-molding a biaxially-oriented polyethylene terephthalate resin bottle-shaped container having high heat resistance and substantially no residual stress is disclosed. The method...
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5509796 |
Machine for manufacturing hollow bodies by blow molding
A machine for manufacturing hollow bodies by blow molding thermoplastic preforms includes at least one preform heating apparatus and an assembly of molding stations fixedly arranged in an arc of a...
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5505612 |
Appartus for blow mold annealing and heat treating thermoplastic articles
An apparatus for annealing and heat treating biaxially oriented articles is disclosed, particularly blow molded articles prepared from preforms which are simultaneously annealed using warm fluid in...
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5501589 |
Injection blow molding apparatus
A parison injection blow molding apparatus injection molds parisons, transfers them to cooling stations then to orient-stretch blow stations and thereafter ejection stations. While at the injection...
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5501593 |
Parison molding apparatus
A parison injection molding apparatus injection molds parisons, transfers them to cooling stations and then ejection stations. While at the injection molding station, cooling stations and during...
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5501590 |
Apparatus for manufacturing biaxially oriented, thermally stable blown containers
An apparatus for blow-molding PET containers suitable for hot-filling includes a first machine having an injection station, a thermal conditioning station, a primary blow-molding station, and an...
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5498390 |
Production of hollow articles from thermoplastics
For the production of hollow articles from thermoplastics, such as wide-necked vessels, bottles and the like, an amorphous parison is injection-molded, warmed to a temperature above the glass...
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5498150 |
High thermal capacity mold assembly
A mold assembly has a mold part with a plurality of elongated cavities therein forming the outer wall of a molded part and wherein a fluid cooled core is inserted within each of the elongated...
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5474734 |
Blow-molding method for resinous molding product and apparatus therefor
A parison is hung down between a pair of molding metallic molds in the opened state, expanding members are contacted with the specified portions of the parison, and after setting the temperature...
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5468443 |
Method and apparatus of injection stretch blow molding
An injection stretch blow molding method sequentially circulates a plurality of neck mold moving units for supporting and conveying neck molds adapted to hold the neck portions of hollow containers...
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5466413 |
Method and apparatus for blow molding a plastic drinking vessel
A substantially cylindrical plastic parison is expanded within a blow mold against the internal walls thereof to form a plastic drinking vessel with a rim having substantially smooth inner and...
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5447426 |
Take-off plate device
The present invention relates to an improved take-off plate device for removing molded articles from a molding machine and delivering them to a transfer or receiving station. The device of the...
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5445515 |
Apparatus for forming a heat-resistant container
A heat-resistant container forming method includes a step of thermally shrinking a primary blow molded article in a heating furnace before secondary blow molding the primary blow molded article...
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5411477 |
High-strength, thin-walled single piece catheters
An integral, single-piece, high-strength, thin-walled, inflatable catheter is disclosed. The catheter has one end partially or entirely closed, and is at least uniaxially oriented along its entire...
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5411698 |
Process and apparatus for blow mold annealing and subsequently heat treating thermoplastic articles
A process and apparatus for annealing and heat treating biaxially oriented articles is disclosed, particularly blow molded articles prepared from preforms which are simultaneously annealed using...
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5389332 |
Heat resistant container molding method
In a method of molding a heat resistant container whose bottom has an inwardly raised part, firstly a preform is primary blow molded to form a primary blow molded article which is greater at least...
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5382157 |
Equipment for the manufacture of polyethylene terephthalate containers
Equipment for manufacturing a polyethylene terephthalate container which is capable of withstanding, without appreciable deformation, relatively severe thermal conditions. The equipment includes a...
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5372495 |
Molding machine
The invention resides in a rotary blow molding machine in which under an extruder for extruding a parison, a turntable is arranged which has plural sets of molds mounted thereon for holding the...
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5370834 |
Method and apparatus for the production of a thermoplastic container from a preform
A container is produced from a preform which is formed by expansion in the axial and/or radial direction of a hollow blank of originally substantially amorphous material. In the production, the...
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5346666 |
Blow molding process and apparatus for producing hollow plastic articles
An improved process and apparatus for blow molding of engineering plastic materials, using a mold and an extrusion machine with a die for producing a hollow plastic parison to be partially received...
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5346665 |
Method of blow molding and blow molding system
When a resin article having at least one thickened part is blow-molded, a parison is extruded and suspended between halves of a blow mold the inner surface of which defines the outer shape of the...
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5342558 |
Blow molding process for the manufacture of polyethylene terephthalate containers
Blow molding processes for the manufacture of polyethylene terephthalate (PET) containers are disclosed. The containers are capable of withstanding, without appreciable deformation, relatively...
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5340526 |
Temperature conditioning
A method for temperature conditioning a blank of plastic material in which a conditioning mandrel is placed within the blank and thereafter expanded into reliable abutment against the inner surface...
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5328351 |
Device for blowmolding of plastic
The device for blow molding of a thermoplastic material contains a heating device for tempering preforms and a blow device for blow forming the preforms into a container. For controlling at least...
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5326258 |
Method and apparatus for heating preform blanks composed of partly crystalline synthetic resins produced by injection molding
A process and apparatus for heating injected, cold preform blanks composed of partly crystalline synthetic resins which have been produced by injection molding. The preform blanks are positioned in...
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5322651 |
Method and apparatus for the thermal treatment of thermoplastic preforms
Preforms are thermally treated in a continuous-run oven equipped with infrared lamps. The portions of the oven exposed to infrared radiation are cooled by an air flow, whose temperature is kept...
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5308233 |
Thermal treatment unit for the manufacture of pet containers
A continuous-feed thermal treatment unit for the manufacture of PET containers includes, in succession, a recovery oven (25) and a crystallization oven (42) having respective heater plates (27, 44)...
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