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US 7,478,662 B2Granted
Apparatus for sealing foils to each other
AssigneeUhlmann Pac-Systeme GmbH & Co. KG
InventorJürgen Matzenmüller
Life of this patent
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Abstract
A sealer for bonding a cover foil to a support foil has upper and lower tools having confronting faces between which the foils move in a transport direction, a drive for pressing one of the tools vertically toward the other tool and thereby compressing the foils together between the faces, an intermediate plate between the drive means and the one tool formed with an array of pressurizable chambers. These chambers can be selectively pressurized.
Claims19
A sealer for bonding a cover foil to a support foil, the sealer comprising:
- upper and lower tools having confronting faces between which the foils move in a transport direction;
- drive means for pressing one of the tools vertically toward the other tool and thereby compressing the foils together between the faces;
- an intermediate plate between the drive means and the one tool formed with an array of pressurizable chambers;
- and
- means for selectively pressurizing the chambers.
2 more elements
Dependencies are inferred from the claim text.