Matches 301 - 350 out of 559 < 1 2 3 4 5 6 7 8 9 10 11 12 >
Match Document Document Title
4439127 Machine for producing blown hollow synthetic resin workpieces  
A machine for the blow molding of synthetic resin hollow workpieces with a unit for shutting parted blow molds and with a turntable moved in steps, with a number of rests evenly spaced round the...
4432719 Apparatus for forming a blown thermoplastic article  
A method and apparatus are disclosed for forming blown thermoplastic articles in which an extrusion head extrudes an essentially tubular parison of thermoplastic material. Sections of a preform...
4431398 Apparatus for adjusting the temperature of a parison for stretch blow molding  
A method of heating a parison neck by stretching blow molding, wherein an injection molded synthetic resin parison is adjusted in temperature while holding a parison neck, by a neck mold for...
4427359 Injection stretch-blow molding machine  
An injection stretch-blow molding machine for producing hollow articles such as bottles by simultaneously performing the formation of a parison by injection molding and sharping of the parison by...
4409161 Blow molding method  
This relates to a blow molding apparatus wherein in lieu of the mold halves closing on a preform and thereafter the blowing operation initiated, the preform is shifted into one of the mold halves...
4405556 Process and apparatus for forming oriented, blown articles  
Method and apparatus for the preparation of oriented hollow articles of moldable organic plastic material which is characterized by a rapid operating cycle and an inexpensive procedure. The...
4401423 Apparatus for blow molding hollow plastic bodies  
An electrically heated sterilization chamber 9 for a hollow blow molding needle 15 is embodied in a half-mold 1A and exits directly into the mold cavity 3, 4. A three-way distributor core 11...
4382905 Injection mold dwell cycle  
Method for the preparation of oriented hollow articles of moldable organic plastic material which is characterized by a rapid operating cycle and a final article free from objectionable capacity....
4381183 Apparatus for removing waste material from a plastic article  
An apparatus for removing a waste portion from a blow molded article is disclosed. The apparatus removes the waste portion while the article is enclosed within the blow mold and features a gripping...
4380423 Device for cutting sprue of parison with bottom  
A device for cutting off a sprue of a parison with a bottom is capable of cutting off the sprue in a heating furnace. Cutter plates for cutting the sprue and an outlet for discharging the cut sprue...
4380525 Process for the production of a blank for subsequent shaping by blow-molding  
The invention relates to a tubular pre-moulding of a thermoplastic, suitable for subsequent blow-moulding shaping to give containers, and to a process and equipment for producing such pre-moulding....
4379688 Oriented injection blow molded container production  
An injection blow molding apparatus capable of achieving biaxial orientation and the produced article is disclosed. The apparatus features a transport table rotatable about and reciprocally movable...
4373891 Apparatus for cooling a transfer mandrel  
An apparatus for cooling a transfer mandrel on whose top portion a thermoplastic resin parison is mounted and which is rotatably engaged with the peripheral portion of a rotary table. The apparatus...
4372910 Method for molding hollow plastic articles  
A method and apparatus of making hollow plastic articles are disclosed in which the preforms or other articles are sequentially molded from a continuous stream of plasticized resin supplied by an...
4370121 Apparatus for forming hollow plastic objects  
Method and apparatus for forming oriented, blown objects of moldable plastic material requiring prolonged tempering cycles to obtain conditions suitable for orientation. Disclosure provides a...
4363619 Apparatus for making wide mouth container  
A method and apparatus for blow molding a wide mouth container wherein substantially the entire container is multiaxially oriented in its formation. The method and apparatus produce this container...
4355968 Apparatus for producing hollow plastic bottles by thermal heating and blow mold expansion  
Plastic bottle blanks (1) are rotated and conveyed neck down through a rotary thermal heating station (3), and neck up to a transfer station (5) and through a blow molding station (4), thus making...
4354813 Plant for producing containers by drawing-blowing of preforms in plastic material  
A plant for producing articles by drawing-blowing of preforms in plastic material comprising a transport device for the preforms comprising independent supports (2,3) each receiving a preform and...
4352777 Method for forming hollow plastic objects  
Method and apparatus for forming oriented, blown objects of moldable plastic material requiring prolonged tempering cycles to obtain conditions suitable for orientation. Disclosure provides a...
4344749 Injection stretch-blow molding apparatus for the manufacture of biaxially oriented hollow bodies from thermoplastic material  
An injection stretch-blow molding apparatus is disclosed. The apparatus includes at least two preform conditioning stations, a molding injection station for initially molding the preform and a blow...
4340344 Apparatus for manufacture of thermoplastics pipe  
A mould for use in the manufacture of thermoplastics eg PVC pipe by radial expansion of a pipe blank, the mould comprising a cylindrical central portion 10 and two removable mould end portions 11,...
4332544 Parison molding apparatus in an injection stretching blow molding machine  
In an injection molding apparatus in which an injection device imposes a touching force on an injection mold in a direction perpendicular to the direction of the clamping force for closing the mold...
4315725 Jig for orientation-blow molding piece  
A jig used for a blow-molding machine for fabricating a bottle-shaped container of biaxially oriented plastic, which comprises advantageously a core shaft elevationally movably inserted in a...
4315888 Method for forming a blown thermoplastic article  
A method and apparatus are disclosed for forming blown thermoplastic articles in which an extrusion head extrudes an essentially tubular parison of thermoplastic material. Sections of a preform...
4313905 Blow molding method  
A method and apparatus are disclosed for forming thermoplastic articles in which preforms are injection molded interiorly of mold cavities around substantially cylindrical core pins on a rotatable...
4313720 Parison transfer means  
In a machine system for continuous formation of molecularly oriented plastic bottles by blowing heat-conditioned parisons comprising a plurality of parison-forming stations, i.e., sixteen (16); a...
4299549 Heating blow-molding machine  
This heating blow-molding machine fabricates a number of bottle-shaped containers from biaxially oriented plastic pieces or parisons by supplying the plastic pieces to a heating unit to heat them...
4285658 Self-centering blow mold  
A self-centering blow mold for a rotary indexing blow molding machine has at the blow station a system for obtaining and keeping alignment among the chordally arranged blowing pins, neck rings, and...
4285657 Injection blow molding apparatus  
Molecular biaxially oriented hollow articles are obtained by injection blow molding using a novel apparatus. The technique involves the use of an inline, single stage injection blow molding...
4272233 Mold for producing extra thin walled plastic containers  
In the manufacture of extra thin walled plastic containers the tail flash formed during the molding operation is spaced from the container proper by molding one or more standoff projections into...
4268242 Pedagogic molding apparatus  
An apparatus for instruction in the techniques of blow molding includes an air cylinder actuated ram parison extruder secured atop a frame carrying a low mass mold set. The mold set includes two...
4266927 Apparatus for molding a plastic article  
Apparatus and method are disclosed for closing and sealing a molded plastic article formed by expanding a heated plastic parison within a chamber or cavity defined by a plurality of mold sections....
4264558 Method of producing plastic containers for storage of goods under pressure  
A method of producing a form retaining container made of synthetic plastic material comprising feeding a plastic material in liquid state onto a male member to provide a layer on the male member...
4251203 Apparatus for producing articles from thermoplastic parisons  
Parisons are presented at a pickup station related to a plurality of spaced molding stations and a spaced discharge station, so that a plurality of angularly spaced pickup and mold loading devices...
4244913 Method for injection blow molding  
A novel procedure for circulating blowing air through an injection blow molded article during the blow cooling cycle of an injection molding process is described. The technique involves the use of...
4242300 Method for processing parisons  
Disclosure teaches a method for rapid processing parisons, especially a method for maintaining a relatively elevated inside temperature of said parison at the time of its removal from the parison...
4239475 Apparatus for making oriented containers  
The injection blow molding machine of this specification moves oriented containers. Parisons applied to core rods move from an injection mold to a conditioning station that provides time for the...
4235837 Method of making oriented containers  
Production of oriented polyethylene terephthalate containers by injecting a polyethylene terephthalate composition into a first mold chamber defining a parison having an axis substantially defined...
4233022 Apparatus for forming heat treated blown thermoplastic articles  
A method and apparatus are disclosed for developing a strain crystallized morphology in blowbottles of thermoplastic material by a heat treatment process subsequent to a blow molding operation. In...
4233010 Orientation-blow molding equipment  
In orientation-blow molding equipment, improved heating equipment is used for evenly and uniformly heating an injection molded piece under optimum temperature conditions for the succeeding biaxial...
4224263 Method for blow molding  
Method and apparatus for blow molding plastic articles from preformed parisons by reheating the parisons and then stretching and blowing them. The parisons are conveyed in series to a plurality of...
4221759 Process for the production of hollow articles from preforms of a thermoplastic  
A process for the production of hollow articles from preforms of a thermoplastic material, one open end of which preforms has a neck moulded at least partially into its definitive shape. During the...
4219526 Method of blow-molding hollow shaped articles, including intermediate tempering and final biaxial stretching stages  
Plasticized parisons of synthetic thermoplastic material are formed in an extrusion machine from where they are transferred to a station to be pneumatically converted in the cavity of an...
4214860 Apparatus for blow molding hollow articles, in particular bottles  
An apparatus to make articles, in particular bottles, from parisons in a blow mold operation. The parisons are carried on transfer mandrels throughout the operation. The parisons riding on the...
4204111 Heating improvements in a preform reheat system  
In the process of raising elongated thermoplastic preforms to molding temperature by programming heat from vertically adjacent heaters at different temperatures into vertical zones of rotating...
4192843 Method for blow molding of thermoplastic articles  
A mixture of water and surfactant is introduced interiorly of a parison in the course of blow molding thereof. Lessening of die closure time and improved conformity of dimensions of molded articles...
4180379 Blow molding machine with rotating core rods  
This blow molding machine overcomes the tendency of the parison to sag toward the bottom side of the core or for air currents to unevenly cool the parison, while at the same time allowing the...
4173447 Apparatus for contact cooling the neck moil of blown hollow containers  
An apparatus for cooling the neck moil of a blown container so that such moil can be easily removed from the container is disclosed. The apparatus has a main body portion which is connected to the...
4151249 Method of making a blown bottle with internal ribs  
A method of making blown plastic containers having internal ribs is disclosed. The first step of the disclosed method is to prepare a substantially amorphous blowable plastic parison such that a...
4151250 Method for blow molding plastic articles  
A method for forming a molecularly oriented thermoplastic container, wherein a thermoplastic blowable shape such as a parison or a blown pre-form is blown to the configuration of the container...
Matches 301 - 350 out of 559 < 1 2 3 4 5 6 7 8 9 10 11 12 >