Process for aseptically forming containers (100) starting from parisons made of thermoplastic material, comprising the steps of: injecting sterile compressed air inside a parison arranged in a stretch-blowing forming mould (2) so as to obtain a container (100); evacuating the exhaust compressed air from the formed container (100); making at least a part of the exhaust compressed air evacuated from the formed container (100) passing through a sterile filter (SF) so as to obtain recovery sterile air; injecting the recovery sterile air in another parison arranged in another forming mould (2).

Hollow part manufacturing machine includes at least one mold in which hollow parts can be manufactured by application of a pressurized medium, a valve unit, having at least two valves, wherein an inlet of a second valve is connected to a second pressure accumulator, which is pressurized under a second pressure, and an outlet of the second valve is connected to a blow nozzle via a channel. The inlet of a first valve is connected to a first pressure accumulator that is under a first pressure and the outlet of the first valve is also connected to the blow nozzle via a channel. During at least a part of the molding process, the blow nozzle seals the material to be molded, and/or the mold, relative to the environment.

A container manufacturing plant (10) includes an air circuit (78) employing a recycling method that includes at least the successive steps of: extracting filtered air from an oven (26), after the air has been used in the latter, for the purpose of cooling at least one part of the preforms; treating the sterilizing agent present in the extracted air resulting from the sterilization of the preforms; and recycling the extracted and treated air to the industrial area (16) where the plant (10) is installed. An air recycling method is also described.

The invention concerns a method for managing captive preforms immobilized in a heating station during an interruption of production, the preforms following a production stream, the heating station including a device for conveying preforms and a heating cavity bordered by at least one row of emitters of monochromatic electromagnetic radiation. The method consists in ejecting from the production stream the cold captive preforms that have been immobilized before they have been exposed to the electromagnetic radiation emitted by the emitters to a recycling stream and rejecting from the production stream the hot captive preforms that have been at least partly exposed to the electromagnetic radiation emitted by the emitters to a reject stream separate from the recycling stream.

The invention relates to a process for production of a container by blowing or blowing-stretching within a production unit comprising a mold and a nozzle which is designed to close the mold hermetically. The process comprises a sequence of forming with a blowing phase and a phase of degassing. The degassing phase comprises spacing the nozzle from the mold in order to interrupt the hermetic closure. The spacing of the is nozzle carried out (i) after the beginning of the degassing phase, when the pressure in the interior of the container has dropped and has reached an intermediate pressure which is lower than the pressure at the end of the forming sequence, and is between 14 and 3 bars or (ii) after completion of the blowing phase, and within an interval of time of between 0 and 200 ms after the stoppage of the injection of gas into the container.

A blow molding apparatus including: a mold; a blow nozzle; a pressurized fluid supply unit; and a blow nozzle moving unit configured to cause a relative movement of the blow nozzle between a connected position and a standby position, wherein a preform is molded into a container by supplying a pressurized incompressible fluid into the preform. The blow molding apparatus includes: a drawing member including a drawing port; a drawing pump configured to be connected to the drawing member; and a drawing member moving unit configured to move the drawing member so that the drawing port is positioned below the blow nozzle, after the container has been molded and the blow nozzle has been moved from the connected position to the standby position.

The invention relates to a process for production of a container by blowing or blowing-stretching within a production unit comprising a mold and a nozzle which is designed to close the mold hermetically. The process comprises a sequence of forming with a blowing phase and a phase of degassing. The degassing phase comprises spacing the nozzle from the mold in order to interrupt the hermetic closure. The spacing of the is nozzle carried out (i) after the beginning of the degassing phase, when the pressure in the interior of the container has dropped and has reached an intermediate pressure which is lower than the pressure at the end of the forming sequence, and is between 14 and 3 bars or (ii) after completion of the blowing phase, and within an interval of time of between 0 and 200 ms after the stoppage of the injection of gas into the container.

Apparatus for forming plastic preforms into plastic containers, having a forming device which has a plurality of forming stations each having a stretching bar for stretching the plastic pre-form and an application device act upon the plastic container with a flowable medium. The forming device has at least four pressure reservoirs for the flowable medium, which each have predetermined pressures, and a valve block with at least five process valves. The application device is configured for producing a fluid connection between the valve block and a mouth region of the plastic preform in order to act upon the plastic preforms with the pressurised flowable medium, and the process valves are configured to act upon the plastic pre-forms with different pressures, wherein at least one process valve is configured for producing a connection between the plastic preform and an environment.

The invention concerns a method for managing captive preforms immobilized in a heating station during an interruption of production, the preforms following a production stream, the heating station including a device for conveying preforms and a heating cavity bordered by at least one row of emitters of monochromatic electromagnetic radiation. The method consists in ejecting from the production stream the cold captive preforms that have been immobilized before they have been exposed to the electromagnetic radiation emitted by the emitters to a recycling stream and rejecting from the production stream the hot captive preforms that have been at least partly exposed to the electromagnetic radiation emitted by the emitters to a reject stream separate from the recycling stream.

A blow molding apparatus including: a mold; a blow nozzle; a pressurized fluid supply unit; and a blow nozzle moving unit configured to cause a relative movement of the blow nozzle between a connected position and a standby position, wherein a preform is molded into a container by supplying a pressurized incompressible fluid into the preform. The blow molding apparatus includes: a drawing member including a drawing port; a drawing pump configured to be connected to the drawing member; and a drawing member moving unit configured to move the drawing member so that the drawing port is positioned below the blow nozzle, after the container has been molded and the blow nozzle has been moved from the connected position to the standby position.