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AssigneeKrones AG
InventorsBenedikt HENGL, Daniel VOGLER, Markus KULZER, Dominik MEIER
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Method for forming plastic preforms into plastic containers, wherein a preform is expanded into the container by exposure to a flowable medium, wherein the medium is stored under a first pressure in a first pressure reservoir and is stored under a second pressure higher than the first pressure in a second pressure reservoir, and the preform is subjected to a first blowing pressure via a flow connection between the first pressure reservoir and the preform and is subjected to the second blowing pressure via a flow connection between the second pressure reservoir and the preform and wherein at times the flowable medium is returned to the first pressure reservoir, and first values characteristic of the action of the medium on the preforms are predetermined taking into account the first values, second values are determined which are characteristic for a point or period in time of the return of the mediums into the first pressure reservoir.
A method of forming plastic preforms into plastic containers, wherein a plastic preform is expanded into the plastic container by exposure to a flowable medium, wherein the flowable medium is stored under a first pressure in a first pressure reservoir and under a second pressure which is higher than the first pressure in a second pressure reservoir, and wherein the plastic preform is acted upon by a first blowing pressure via a flow connection between the first pressure reservoir and the plastic preform and is acted upon by the second blowing pressure via a flow connection between the second pressure reservoir and the plastic preform, and wherein flowable medium is at least temporarily returned to the first pressure reservoir,
An apparatus for forming plastic preforms into plastic containers, having at least one forming station which has a pressurizing device which is configured for expanding a plastic preform into the plastic container by application of a flowable medium, having a first pressure reservoir configured for storing the flowable medium under a first pressure and a second pressure reservoir for storing the flowable medium under a second pressure which is higher than the first pressure and with a first flow connection between the first pressure reservoir and the plastic preform in order to apply a first blowing pressure to the plastic preform via the flow connection between the first pressure reservoir and the plastic preform and with a second flow connection between the second pressure reservoir and the plastic preform in order to apply a second blowing pressure to the plastic preform via this flow connection between the second pressure reservoir and the plastic preform, wherein, furthermore, at least at times flowable medium can be returned from the container into the first pressure reservoir, and having a control apparatus which presets first values characteristic of the action of the flowable medium on the plastic preforms,
Dependencies are inferred from the claim text.