Patent classifications
B29C49/783
Two stage flow through seal pin
A nozzle and system for hydraulic blow molding of a plastic container from a preform. The nozzle includes a nozzle body having a main bore extending therethrough and a seal pin received in the main bore and moveable between a closed position and an opened position. The seal pin include a central bore extending from an entrance orifice to an exit orifice, with the entrance orifice opening into the main bore of the nozzle body.
Apparatus and method for fabricating and filling containers
An injection head for the fabrication of a container from a preform. The injection head interfaces with a preform to establish fluid communication between a liquid supply and the preform. An injection valve is disposed within the injection head and is configured to selectively permit fluid communication through the injection head. A liquid supply control mechanism and a control mechanism of the injection valve's opening allow fluid communication through the injection head. The control mechanism of the injection valve's opening is activated by the liquid under pressure in the injection head cavity when the liquid supply is opened.
METHOD AND APPARATUS FOR PRODUCING LIQUID-CONTENTS-FILLED CONTAINERS FROM PREFORMS BY CONTENTS BEING INTRODUCED INTO THE PREFORM UNDER PRESSURE
The present invention relates to a method and an apparatus for producing containers filled with a liquid filling material from preforms by introducing pressurized filling material into the preform. The object of the invention is to propose such a method and such an apparatus in which both the desired filling pressure and the desired volumetric flow rate of the filling material are reliably available throughout the entire molding and filling phase. The object of the invention is achieved by a method in which the filling material is pressurized by a pressure pump 7 and is introduced into the preform 1 through a filling valve 6 at a molding and filling station 3, said method being characterized in that, when the filling valve 6 is closed, a pressure accumulator 10 disposed between the pump 7 and the filling valve 6 is pressurized by the pump 7 and filled with a volume of filling material, and when the filling valve 6 is open, the pressure accumulator 10 delivers the accumulated pressurized filling material to the preform 1. The object of the invention is further achieved by a corresponding apparatus that comprises a pressure pump 7 and a filling valve 6, connected to one another by a feed line 2, characterized in that said apparatus comprises a pressure accumulator 10, disposed in the feed line 2 between the pressure pump 7 and the filling valve 6.
LIQUID BLOW MOLDING METHOD
A liquid blow molding method includes: a preliminary pressurizing step of operating a pressure feeding source to preliminary pressurize a liquid between the pressure feeding source and a blow nozzle; an operating condition setting step of setting an operating condition of the pressure feeding source on the basis of data acquired by the preliminary pressurizing step; a blow molding step of liquid blow molding a preform into a container of a predetermined shape; and a suck-back step of operating the pressure feeding source in a reverse direction on the operating condition set in the operating condition setting step to suck back the liquid from inside of the container molded into a predetermined shape in the blow molding step toward inside of the blow nozzle.
DEVICE AND METHOD FOR SWITCHING TIME COMPENSATION ON THE VALVE BLOCK
Provided is a device for reshaping plastic parisons into plastic containers, including a plurality of blow moulding stations each having blow mould devices which form a cavity, inside which the plastic parisons can be reshaped into plastic containers, and including at least one application device by which a flowable medium can be applied to the plastic parisons for expansion thereof, and at least one valve device which is arranged between at least one pressure reservoir and at least one application device and by which the supply and/or removal of the flowable medium, in particular under high pressure, in particular the blowing pressure and/or volume flow thereof, to the application device can be influenced or controlled.
METHOD OF BLOW MOLDING
Systems and methods for simultaneously forming and filling a container are provided where a pressure source is accelerated from an initial state to attain a predefined process speed while applying pressure to a volume of fluid. The volume of fluid is fluidly coupled to a preform upon attaining the predefined process speed, the pressure source directs at least a portion of the volume of fluid into the preform and stretching the preform to form the container, where the container includes at least the portion of the volume of fluid. The volume of fluid is fluidly decoupled from the container and the pressure source is then decelerated from the predefined process speed toward the initial state.
LIQUID CONTAINER MANUFACTURING METHOD
A liquid container manufacturing method of manufacturing a liquid container that contains a content liquid from a synthetic resin preform, the method including an inflation body insertion step of inserting an inflation body into the preform; an air discharge step of discharging air out of the preform by inflating an inflation body in the preform; a mouth blocking step of blocking a mouth of the preform; an inflation body contraction step of contracting the inflation body with the mouth blocked; and a liquid blow molding step of molding the preform into a liquid container by supplying a pressurized liquid into the preform through a blow nozzle.
Multi stage radial deformation for manufacturing thin strut stent from bioabsorbable polymer
This invention discloses a process for preparation of a balloon expandable biodegradable polymer stent with thin struts (strut thickness 130 m or less, preferably 100-110 m) with high fatigue and radial strength. The invention discloses a process for the preparation of a biodegradable polymer stent which involves radially deforming the biodegradable polymer tube by applying pressure to it with an inert gas at a predefined temperature in multiple stages with each successive stage having a pressure higher than the pressure applied in a previous stage. The process further involves maintaining the predefined temperature and pressure conditions of each stage for a specified time period after application of the pressure.
SEAL PIN FLOW RATE METHOD AND SYSTEM
A method for forming and filling a container. The method includes: determining an effective fill area of an opening of the container through which fluid can pass while a stretch rod is seated within the opening; actuating a seal pin to open a nozzle passage of the nozzle to allow the fluid to flow through the nozzle passage and through the opening to simultaneously form and fill the container; detecting a degree to which the nozzle passage is open; increasing fill velocity of the fluid to the nozzle as the nozzle passage is opened; setting fill velocity of the fluid to a maximum fill velocity when the nozzle passage is opened such that an area of the nozzle passage is at least equal to the effective fill area at the opening of the finish; and closing the seal pin after the container is formed and filled.
Method for producing containers filled with a liquid filling material from blanks made of a thermoplastic material and nozzle for use in such a method
A method for producing containers filled with a liquid filling material from blanks made of a thermoplastic material and to a nozzle for use in the method. In the method, each blank is at least thermally conditioned and is then shaped to form the container in a mold during a shaping phase, by axial and radial stretching, as a result of liquid filling material being introduced under pressure into the blank through a nozzle. The axial stretching is initiated by the pulsed injection of filling material into the blank.