Matches 251 - 300 out of 559 < 1 2 3 4 5 6 7 8 9 10 11 12 >
Match Document Document Title
4856978 Apparatus for conveying preforms  
An apparatus is provided for the conveyance of preforms through a heating station to a stretching and blowing machine during the production of hollow articles from thermoplastic plastics materials,...
4850850 Apparatus for preparing heat-set plastic hollow vessel  
An apparatus for preparing a drawn heat-set plastic hollow vessel, which comprises a rotary member having a plurality of openable-closable blow-forming and heat-setting molds and preform-supporting...
4846660 Apparatus for producing double wall pipe  
Pipe made from thermoplastic polymeric material and comprising a transversely corrugated outer wall and a smooth inner wall of constant diameter fusion welded to the inner crests of the...
4846656 Apparatus for heat treatment of preform necks  
An apparatus for the heat treatment of the necks 1 of performs 2 includes a rotatable mandrel 3, which is inserted in and engaged with the neck of the preform to rotate it, a fixed protective skirt...
4822543 Method for forming plastic containers  
A method for producing a blow molded, heat set container including at least one large collapse panel in a side wall of the container. The area of the side wall of the container forming a collapse...
4767311 Blow molding apparatus with resilient skirted spindle nose  
A reheat blow molding machine having an article handling system that carries heated preforms by a carriage assembly from an oven to a chain conveyor which moves them to a blow mold from whence the...
4759708 Apparatus for extrusion blow molding of compartmented containers using dual cooled blow pins  
An extrusion blow molding apparatus of the type having a parison tube extruder and at least one blowing station for producing a dual-compartment container as an improvement for increasing the rate...
4741688 Injection stretching and blow molding machine  
The present invention provides an injection and blow molding machine which comprises a machine bed having five operating sections, i.e., an injection molding section, a temperature control section,...
4729732 Carrying means for holding and cooling a parison  
The apparatus of the present invention involves transferring plastic parisons from a receiving station to a finishing station on a plurality of pallets in a single row for forming said parisons...
4726756 Temperature control blow molding equipment in injection stretch blow molding machine  
A temperature control blow molding equipment which has a temperature control mold and a blow mold on one seat body and which is used in an injection stretch blow molding machine comprising a...
4711624 Apparatus for heat-setting a tubular article of crystallizable polymer  
For making open-ended thermoplastic tubular articles, which are dimensionally stable up to elevated temperatures, an open-ended polymer tube is placed between a fixed, heated external mould and a...
4703912 Mold temperature controlling apparatus  
Plural mold cavity defining mold block with particular arrangement of bored and plugged conduits for heat transfer fluid. The molds being particularly useful in blow-molding.
4701121 Apparatus for producing a biaxially oriented container of polyethylene terephthalate or similar material  
Apparatus for producing a container from a tubular blank of polyethylene terephthalate or similar material, according to which a polyethylene terephthalate blank is stretched at least approximately...
4698012 Multi-station rotary blow molding machine  
A multi-station rotary blow molding machine having a plurality of separable blow molds angularly arranged in a serial fashion in a circular array within the machine. Each mold is comprised of two...
4696636 Thermoplastic container forming apparatus  
Apparatus is provided for straightening a parison tube (58b) in an apparatus of the type in which thermoplastic tubing (48) is extruded into open halves (24 and 26) of a blow mold (22) and a...
4690633 Apparatus for preparing hollow plastic articles  
The apparatus of the present invention involves transferring plastic parisons from a receiving station to a finishing station on a plurality of pallets in a single row for forming said parisons...
4687612 Heat treating thermoplastic sheet materials for thermo-forming  
An apparatus for, and a method of, heating a thermoplastic material in web form in readiness for forming three-dimensional objects therefrom in a thermo-forming process involves (a) advancing the...
4684012 Blow molding pallet assembly  
A pallet assembly is disclosed for use in simultaneous transfer of four preheated plastic preforms from an oven, through a blow mold where they are blown into bottles to a location where the...
4680001 Passive mold cooling and heating system  
A mold for molding articles of plastic or other like materials, having a plurality of vertically extending internal passages, is connected by inlet and return conduits into a closed loop that...
4678425 Resilient skirted spindle nose and pallet with reciprocatable spindle combined therewith  
A pallet has a plurality of reciprocable spindles mounted thereon. Each spindle can be reciprocated and has an improved bearing support and bias means urging the spindle to one end of its...
4664958 Hollow plastic container having an insert  
A hollow thermoplastic container having an annular closure receiving insert embedded in the wall thereof made by blowing a hollow preform radially outwardly against the confines of a mold wherein a...
4657502 Apparatus for manufacturing hollow bodies from thermoplastic synthetic resinous materials  
A method for manufacturing hollow bodies from thermoplastic material by making hollow body-shaped preforms provided with opening nipples, which during a subsequent processing operation are reduced...
4611981 Three-mold hand-over-hand blow molding machine  
Disclosed is an improved hand-over-hand blow molding machine and the method for forming a chain of hollow, shaped article bodies of biaxially oriented, normally highly crystalline thermoplastic...
4606723 Method and apparatus for heating thermoplastic bottle preforms  
Thermoplastic preforms are heated in preparation for the blow molding of bottles therefrom in a tunnel (1) provided with infra-red radiators (13). Supports (19) for the preforms (17) move along the...
4592719 Apparatus for manufacturing plastic bottles from molded hollow preforms  
Upon leaving the mold, plastic bottle preforms are engaged internally and/or externally by pneumatic suction grips which form an annular chamber (15, 27) through which atmospheric cooling air is...
4592720 Device for reheating and blow molding parisons  
A reheating and blow molding system utilizing an indexing plate having pairs of core pins mounted on the periphery. Radiant heaters heat parisons mounted on the core pin to a temperature suitable...
4588370 Device for removing and conveying injection-molded piece  
A transparent thin bottle-shaped container is produced by means of a technology for biaxial orientation blow molding a cylindrical piece with a bottom from polyethylene terephthalate material. The...
RE32129 Injection blow molding machine  
An injection blow molding machine which is compact but effective in operation. The machine comprises: a machine bed being provided with an injection molding stage having an injection mold and a...
4571173 Method for thermally conditioning a thermoplastic preform  
A method is disclosed for thermally conditioning an essentially tubular parison of polyethylene terephthalate material to a desired orientation temperature at which the polyethylene terephthalate...
4564497 Method of producing bottles of saturated polyester  
A method of producing a saturated polyester resin bottle having a white-patterned wall by bringing at least one heat absorbing member into partial contact with a transparent tubular parison of a...
4560340 Apparatus for forming oriented containers  
A process and apparatus for the blow molding of oriented, hollow containers from tubular parisons in which a tubing of plastic material at a suitable orientation temperature for the material is...
4551193 Apparatus for applying reinforcement bottoms to plastic bottles  
An apparatus for installing reinforcing bottom cups on blow molded plastic containers includes a transfer arm which grasps the outer peripheries of a plurality of molded hollow containers, such as...
4549865 Blow molding apparatus  
A blow molding apparatus comprising a wheel plate, a shaft extending horizontally and supporting the wheel plate for rotation and a hub removably mounted on the shaft for rotation with the shaft,...
4545751 Apparatus for molding of plastic tubing  
Method and apparatus for molding of plastic tubing, including an elongate nozzle receiving an extrudate of an expandible plastic material under pressure from an extrusion head and a coaxial mandrel...
4540544 Method of producing a biaxially oriented container of polyethylene terephthalate or similar material  
A method for producing a container from a tubular blank of polyethylene terephthalate or similar material, according to which a polyethylene terephthalate blank is stretched at least approximately...
4536150 Carrier with exchangeable chuck  
An article carrier is provided for blow molding equipment which permits relatively simple exchange of the article gripping chuck portion of the carrier. The carrier includes a carrier body, a...
4518549 Apparatus for and method of cooling the core rods of an injection blow moulding machine  
The invention provides a method of and apparatus for cooling the core rods of an injection blow moulding machine having stripper means and an injection blow moulding machine incorporating the...
4518340 Apparatus for the manufacture of a blank for a container  
Apparatus for producing a tubular premoulding of a thermoplastic material, suitable for subsequent shaping to form containers by a rolling process. The material in a part of a tube is axially...
4512735 Apparatus for blow molding a container having an upward bulged bottom  
A mold, for forming a container by fluid pressure, having two mold halves and two axially movable plungers, the plungers forming the bottom of the container therebetween, an inner plunger or...
4505664 Blow molding machine  
A machine particularly useful for the blow molding of large thermoplastic articles such as cylindrical drums comprises a plurality of stations through which mold cavities are successively advanced....
4499045 Process for the production of tubes of a molecularly oriented plastic  
A portion of a plastic tube (16) heated to a temperature at which stretching induces a molecular orientation, is clamped in a sleeve (14), a fluid under pressure is introduced into the portion of...
4493633 Apparatus for moulding an article from plastic material  
Apparatus for moulding an article (11) of thermoplastic material from a parison (10) in which certain parts (17,16) of the parison are re-formed while other parts (13,12,20) retain their shape. A...
4479772 Blow molding machine employing rotatably driven wheels  
The number of blow mold stations being associated with a blow wheel of a blow molding machine determines a large pitch of the mandrel receiving positions of the blow wheel. Contrarily the mandrels...
4473515 Injection blow molding method  
A technique is described for preparing molecular biaxially oriented hollow articles from thermoplastic materials. The invention involves forming a parison on a cooled core rod by injecting a hot...
4470797 Preform loader  
This relates to a loader for loading preforms into collets of pallets in a blow molding machine wherein a plurality of preforms are simultaneously loaded into the blow molding molds during each...
4470796 Apparatus 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...
4464106 Apparatus for the production of a blank for containers  
Apparatus for producing a tubular pre-moulding of a thermoplastic material, suitable for subsequent blow-moulding to form a container comprising a mold in which a future mouth portion and a portion...
4463056 Thermoplastic container parison  
A thermoplastic, generally tubular parison for the blow molding of a thermoplastic container and a method and apparatus for same. The parison includes a finish or neck having a single helical...
4451426 Process for blow-molding a hollow article from a preform made from a thermoplastic  
The preform (1) for the production of hollow articles by blow-moulding possesses a profiled false neck (4) provided with a circular toothed collar (6), and during the thermal conditioning of the...
4439394 Heat setting method  
Disclosed is a method and apparatus for orientation blow molding and heat setting of a thermally crystallizable polymer wherein the orientation blow molding is effected in a relatively low mass...
Matches 251 - 300 out of 559 < 1 2 3 4 5 6 7 8 9 10 11 12 >