Tube head provided with an air non-return valve
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United States of America Patent
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Issued Date -
Aug 16, 2012
app pub date -
Feb 16, 2011
filing date -
Feb 16, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a tube head for product of fluid to pasty consistency comprising:
- a neck having at a first end an opening through which the product is extracted from the tube; anda shoulder connected to a second end of the neck opposite the first end, and the tube head comprising an air non-return means placed in said neck, said means being adapted to avoid a return of air from the first end of the neck to the second end of the neck, characterised in that the tube head is one piece and in that the non-return means comprise at least one valve.
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