A method for handling at least sectionally sterile workpieces having a filiable inner volume, wherein the workpieces are each connected to a closure device, and by which the workpieces are guided through a plurality of treatment stations. One of the stations is a sterilization unit, wherein in at least one of the treatment stations, a treatment member is moved through a passage opening of the closure device all the way into the inner volume of the workpiece. The passage opening of the closure device is closed off by a closure element, which opens when the treatment member moves through and closes again upon removal of the member, wherein the closure device sealingly closes the inner volume of the workpiece with respect to an external region.

The invention relates to a method for manufacturing a container (2), by drawing and blowing in a mould (8), from a blank (3) made of plastic material, which includes the following operations: inserting the blank (3) in the mould (8); controlling the opening of a pre-blowing solenoid valve (17) at a predetermined pre-blowing rate (D.sub.P); measuring the current pressure (P) inside the blank (3); detecting an actual time (t.sub.A) for starting the pre-blowing step; calculating a time (t.sub.F) for ending the pre-blowing step such that: t.sub.F=t.sub.A+t, wherein: t is a predetermined time for opening the pre-blowing solenoid valve and is a predetermined constant; deducing therefrom an actual pressure (P.sub.F) at the end of the pre-blowing step; comparing said pressure to a theoretical pressure (P.sub.th); and if said pressures are found to be non-identical, ordering a modification of the pre-blowing rate (D.sub.P).

The invention concerns a method of degasification of a carbonated beverage-filled container in an apparatus for blowing and filling containers, the apparatus comprising: a mold (12) enclosing a blown and carbonated beverage-filled container (14) that comprises a dispensing opening (16), an injection head (24) that is movable along a longitudinal axis (A) passing by the dispensing opening of the container between a sealing position in which the injection head is in a sealing engagement with the dispensing opening and a non-sealing position in which the injection head is at a distance from the dispensing opening, characterized in that the method comprises the following steps: i) moving the injection head (24) away from the sealing position (3A) to a non-sealing position (3B). ii) moving back the injection head to the sealing position (30), iii) moving the injection head away from the Position sealing position to a non-sealing position (3D).

A stretch blow molding system (200) is provided. The stretch blow molding system comprises a cylinder (201) including a movable stretch rod (202) and a blow-mold valve (204). The blow-mold valve (204) comprises a first fluid port (204a) in fluid communication with a first pressurized fluid source (364a). The blow-mold valve (204) also includes a second fluid port (204b) in fluid communication with a second pressurized fluid source (364b). A third fluid port (204c) of the blow-mold valve is in fluid communication with the cylinder (201) and selectively in fluid communication with the first fluid port (204a) and the second fluid port (204b).

Provided is a method for diagnosing a forming fluid leak in at least one station for forming hollow bodies during a production cycle sequence. Each cycle includes a first phase of pressurizing the hollow body by connection to a source of forming fluid compressed to a maximum blowing pressure, followed by a second phase of passively maintaining pressurization during which the hollow body is isolated from the forming fluid source. The diagnostic method includes a determining the change in the pressure of the forming fluid in the hollow body by carrying out a series of multiple pressure measurements successively during the second phase.