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US 7,028,449 B2Granted
Sealable packaging container, packaging machine and method of sealing the packaging container
AssigneeCFS Palazzolo S.p.A.
InventorPaolo Salvoni
Life of this patent
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Abstract
A packaging machine for sealing a packaging container having a lid and a tray comprising an upper part and a lower part arranged vertically moveable against each other, at least three vertical pins mounted on springs for opening a packaging container by lifting the lid off of the tray, evacuating mechanism for exchanging gas within the packaging container and sealing mechanism for sealing the lid to the tray.
Claims8
Packaging machine for sealing a packaging container, the packaging container having a tray and a lid, the packaging machine comprising:
- an upper part and a lower part arranged vertically moveable against each other, the lower part containing a receptacle for holding the tray;
- means for evacuation
- means for sealing the container lower part;
- means for opening the container comprising at least three vertically arranged pins, said pins being mounted on springs adapted to urge the pins in an upward motion;
- and
- wherein the pins and the receptacle for holding the tray being vertically moveable relative to each other, the pins being located at the horizontal circumference of the tray, so that the upper part of the sealing means, while moving downwards, push the pins downward, against the spring, until the upper part of the sealing means is in operative association with the lower part of the sealing means.
3 more elements
Dependencies are inferred from the claim text.