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8052831 |
Low temperature, vacuum cure fabrication process for large, honeycomb core stiffened composite structures
A method for making a honeycomb composite structure wherein the method allows for fluid flow from cells of a honeycomb core during a cure process. More specifically, the method involves forming one...
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7857613 |
Mold cooling by recovery of energy from spent compressed air in blow-molding process
Heat is extracted from compressed gas used in a blow-molding process by expansion cooling the exhausted gas and/or passing the exhausted gas through a vortex tube, which supplies cold gas at an...
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7803311 |
Air recirculation in a blow molding process
A device for molding a container from a thermoplastic material in which a heated parison is pre-blown by supplying low-pressure blowing air from a low-pressure air supply and then the blow molding...
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7780884 |
Method for post-mold treatment of a molded article and an apparatus for implementing the method
Embodiments of the present invention teach a method for post-mold treatment of a molded article and an apparatus for implementing the method. For example, a method of post-mold treatment of a...
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7172721 |
Thermoplastic molding process
The invention provides a novel thermoplastic molding process useful in the manufacture of hollow, deformable thermoplastic articles such as hollow doll heads. In the process of the instant...
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7044057 |
Fabrication of printed dining plates
A method of fabricating a formed object, comprising the steps of printing a desired high quality photo or near photo like image on a forming material at a resolution substantially equal to the...
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6582649 |
Parsion stabilizing method and system therefor for blow-molding machine
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...
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6423253 |
Method and installation for making containers by blowing thermoplastic blanks
The invention concerns a method whereby in an installation (1, 2, 3) for making containers (200, 300) by blowing blanks (400), for example thermoplastic preforms, the high pressure fluid derived...
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6406288 |
Apparatus for extrusion molding utilizing clamping devices and means for releasing compressed air
An apparatus for extrusion molding that includes an extruding die that permits extrusion of a material into a hollow tubular molding, a molding die, first and second clamping devices and a device...
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6395217 |
Extrusion molding process and the related apparatus
An extrusion molding process including the steps of: i) extruding a material through an extruding die into a tubular molding, ii) driving two clamping devices to clamp the tubular molding at...
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6358462 |
Method of manufacturing a liquid cooled blow molded article
A method of blow molding a plastic article. A plastic article is blow molded within a mold. The article has plastic parison a wall. The wall is pierced by a first and a second needle or blowing...
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6303071 |
Method and apparatus for producing a blow molded article
Provided is a method for producing blow moldings having a relatively large size through blow molding by use of a simple facility. The method including the steps of feeding a melt parison of...
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6284171 |
Blow molding process
A blow molding process in which a gas is blown into a parison within a mold to inflate the parison, the parison makes intimate contact with a mold shaping portion to form a hollow molded product,...
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6217817 |
Method for blow-molding tube container
A blow molding method for molding tube containers by introducing blow air into a parison having been extruded by an extruder is disclosed, which comprises introducing blow air into the parison to...
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6183683 |
Method and apparatus for transporting plastics in a melted state
A method and apparatus is provided to transport parisons from the extrusion die to a second location. The parison is extruded and a collar means is provided to contact the parison near its upper...
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6117386 |
Centering perfusion delivery catheter and method of manufacture
A method and apparatus for manufacturing a centering, perfusion catheter balloon. A mold member is formed having an axial aperture. A plurality of axially spaced sets of transverse holes through...
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6027683 |
Extrusion molding process and apparatus
An extruded tubular molding is clamped at upper and lower portions thereof to form an air-tight space therebetween and thereafter compressed within two corresponding halves of a molding die and...
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5891386 |
Method for making catheter balloons
A method and apparatus for forming perfusion balloons from thermoplastic materials. A helical member having a cross section corresponding to a desired perfusion channel cross section is placed in a...
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5874141 |
Injection/blow molded plastic container and method
A plastic container is formed by injection and blow molding wherein the injection molded body has an annular shoulder, an upper neck and a bottom wall with a central flat portion of substantially...
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5851479 |
Method and apparatus for blow molding hollow articles
A method and apparatus for blow molding plastic articles which utilizes one or more fixed needles and one or more micro vents associated with a blow mold cavity. Each needle has a first passage...
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5770135 |
Process for producing permeation resistant containers
The present invention discloses an improved process for producing plastic containers with excellent resistance to permeation by solvents such as hydrocarbons, hydrocarbon fuels, and hydrocarbon...
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5759475 |
Method for blow-molding hollow container and blow air cylinder
A blow molding method by horizontal blow molding of piercing the wall of a parison having been extruded by an extruder with a blow nozzle is disclosed, which comprises moving forward the blow...
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5730914 |
Method of making a molded plastic container
A polyethylene terephthalate (PET) preform (11) having a capped cylindrical body (13), a threaded top and a collared neck (19) is preheated to soften the PET. The preform (11) is placed in a split...
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5700498 |
Molding apparatus
Apparatus for blow-molding an article curved in three dimensions comprises two horizontally movable mold parts which, when in contact with each other, define a mold cavity curved in three...
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5681629 |
Process for the manufacture of an article comprising a surface treatment step in the substantial absence of oxygen
The invention relates to a process for the manufacture of an article comprising a surface treatment step of at least part of the article in the substantial absence of oxygen; the surface of the...
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5681520 |
Method of molding large containers by the process of stretch blow molding
There is provided a method of molding a large container including the steps of preparing a preform from an injection-molded, thick-wall, closed-end parison by repeatedly and intermittently applying...
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5648026 |
Multiple utilization of blow-mold air
The procedure serves the purpose of molding a container from a thermoplastic material. After a temperature treatment a moldable object is fed to a blow station, which has a blow mold that is...
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5585066 |
Multiple utilization of working air
The procedure is designed for the pneumatic operation of a device in which at least one structural element is pneumatically actuated. The actuation is done by primary working air, which is fed to...
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5567371 |
Blow molding and fluorination process for the production of hollow bodies from thermoplastic materials and products so made
In a process for the production of a hollow body such as a fuel tank from thermoplastic material, the wall thereof is subjected to a two-step treatment to influence the permeation properties of the...
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5565165 |
Method for blow molding hollow articles
In a blow molding process, a fused thermoplastic polymer parison is interposed between a pair of split molds. The split molds are closed around the parison to seal the ends. A small diameter hollow...
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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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5522961 |
Method of construction of a balloon catheter
The method of manufacturing a polyurethane balloon catheter from a length of tubing of such material wherein the tubing is placed in a mold of the desired final expanded shape, the mold and tubing...
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5474735 |
Pulse blow method for forming container with enhanced thermal stability
A method and apparatus for forming a plastic container having an enhanced level of crystallinity for improved thermal stability. A substantially amorphous and transparent preform in the molecular...
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5401451 |
Process for producing permeation resistant containers
The present invention discloses an improved process for producing plastic containers with excellent resistance to permeation by solvents such as hydrocarbons, hydrocarbon fuels, and hydrocarbon...
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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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5326514 |
Process for the production of hollow bodies of thermoplastic material and hollow bodies produced by that process
In a process for the production of hollow bodies from thermoplastic material by blow molding, an additional body is disposed inside the hollow body by being carried on a holding means which is...
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5244615 |
Process for the production of permeation resistant containers
A multi-step blow molding process for producing fuel containers having excellent resistance to permeation by hydrocarbon fuels and organic fuel additives such as lower alkanols and ethers. In blow...
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5229043 |
Blow molding method and apparatus employing pressurized liquid cryogen vaporized by recovered gaseous cryogen
An article is formed in a mold by blowing a hot plastic material with a blowing gas. A cooling fluid is introduced into the article to cool the article and allow its removal from the mold. A warmed...
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5213734 |
Process for producing, by blow moulding, hollow bodies made of thermoplastic material having an improved impermeability to gases
The process involves the following steps: a. Expanding the blowing gas enclosed in the hollow body (VII) by opening the valve (8). b. Injecting, into the hollow body, via the valve (4), a mixture...
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5190715 |
Blow molding process for production of hollow type articles
A blow molding process of producing molded articles including the steps of extruding a parison of the plasticized material from a die into a gap between mold halves while the mold is open and...
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5145632 |
Process for the manufacture of PET containers designed to be filled with a hot liquid
A process for the manufacture of a polyethylene terephthalate (PET) container from a hollow amorphous PET preform which includes an open end and a closed end, the open end forming a neck section...
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5078948 |
Arrowhead tip blow needle and method of using the needle to blow mold an article
An apparatus for producing a blow-molded article including a mold having operable die pieces and a passage through at least one of the die pieces for receiving the needle. The needle includes a...
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5067891 |
Injection blow molding apparatus
Injection-blow molding apparatus in which maximum mold density is obtained by alternate arrangement of circumferentially continuous blow molds and injection molds, with closure of the blow mold...
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5068075 |
Method of blow molding aseptic bottles
A parison is blow molded to form a sealed aseptic bottle for subsequent opening and filling. The pressure of the gas in the interior of the bottle when sealed is sub-atmospheric to prevent...
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5061173 |
Injection-blow molding apparatus including circumferentially continuous injection molds, blow molds and shoulder forming sleeves
Injection-blow molding apparatus in which maximum mold density is obtained by alternate arrangement of circumferentially continuous blow molds and injection molds, with axial mold closure being...
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5052626 |
Coolant introduction in blow molding
A more efficient cooling of a blow molded thermoplastic article can be achieved by directing sprays of cooling medium against those specific zones of the wall of the article which require a more...
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5035931 |
Multi-layer parison, multi-layer bottle and apparatus for and method of manufacturing parison and bottle
Each of a multi-layer parison and a bottle formed from the parison has a nine-layer structure including five heat resistant resin layers at their mouth portions. The parison is formed by a hot...
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5030399 |
Method of in-mold sulfonation of molded plastic article
An in-mold sulfonation system for sulfonating the surface of plastic articles such as plastic containers during molding. Sulfur trioxide is introduced into a pre-mold chamber, converted to a...
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4950153 |
Blow molding apparatus
A blow molding machine having a mold cavity, a blow needle bore opening into the cavity with a blow needle in the bore, a vacuum source for drawing blow air from a molded article and an exhaust...
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4946366 |
Needle assembly for blow molding aseptic bottles
A blow pin assembly for use in blowing aseptic bottles includes a hollow blow needle and a sterile air system for maintaining the sterility of the needle tip.
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