FIELD: packing equipment, particularly to seal high-pressure liquid vessels.
SUBSTANCE: sealing structure for large gas-tight vessels filled with such products as carbonated beverages or high-pressure liquids includes film 8 closing bottle neck 10. Factory-sealed film 8 is supported by plate 4 of plug 36, which is made as a part of upper lid 4. Upper lid is screwed on outer wall of tubular head 6, enclosing bottle neck 10. When sealing structure is connected for the second time plug is crewed on bottle neck for larger depth to form secondary seal between the plate and bottle neck.
EFFECT: increased gas-tightness of sealing structure and, as a result, increased shelf life of the product.
6 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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SU33415A1 | |
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