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US 7,322,473 B2Granted
Plastic packaging with at least one welded knob
AssigneeConvenience Food Systems Wallau GmbH & Co. KG
InventorRudolf Fux
Life of this patent
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AssigneeConvenience Food Systems Wallau GmbH & Co. KG
InventorRudolf Fux
Estimating the term…
The invention relates to a plastic packaging (1) made from a packaging dish (2) and a cover lid (3). The cover lid (3) is at least partially sealed to the packaging dish (2) in a peelable manner and the cover lid (3), or the packaging dish (2), comprises at least one knob (5) and complementary to the above the packaging dish (2) or the cover lid (3) comprises a recess (6), through which the knob(s) is/are pressed on sealing the plastic packaging (1). At least a partial region of at least one knob is provided with a sealing material (95) or preferably at least one partial region of at least one knob (5) and the boundary region of the complementary recess (7) is connected to a sealing material (9), which on first opening of the packaging (1) is damaged. The invention further relates to methods for the production of said packages.
Plastic packaging comprising a packaging cavity and a cover film, wherein the cover film is sealed in a sealing region to the packaging cavity so as to be at least partly peelable, the cover film or the packaging cavity having at least one knob, and the packaging cavity or the cover film having at least one hole complementary to the knob, through which the knob(s) is or are pushed through upon sealing the plastic packaging so that at least one partial region of the at least one knob passes through the hole and projects out of the packaging cavity or the cover film,
Dependencies are inferred from the claim text.