Claims
- 1. A screw top comprising:
- a skirt,
- a sealing ring,
- a predetermined number of cross-elements extending between a lower edge of said skirt and an upper edge of said sealing ring for being broken when unscrewing the skirt due to their small section,
- prolongation means extending from said lower edge of said skirt towards and beyond said upper edge of said sealing ring along an innermost side of said sealing ring for preventing any deformation of said sealing ring in a radial direction so as to avoid rupture of said cross-elements.
- 2. A screw top as claimed in claim 1, wherein said prolongations extend in a direction substantially parallel to a geometrical axis of said top.
- 3. A screw top as claimed in claim 1, wherein the prolongation means comprises a plurality of circumferentially spaced prolongations.
Priority Claims (1)
Number |
Date |
Country |
Kind |
90870020.6 |
Feb 1990 |
EPX |
|
Parent Case Info
This is a continuation of application Ser. No. 07/592,490, filed Oct. 4, 1990.
US Referenced Citations (8)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2099800 |
Dec 1982 |
GBX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
592490 |
Oct 1990 |
|