The proposed invention will now be explained by way of the non-limiting description of the preferred embodiments and with the reference to the accompanying drawings in which:
The closure comprises a discharge sleeve 1 with an outer pipe 2 and an inner pipe 3, the outer pipe having longitudinal ribs 4 and a collar 5 with an external thread 6, an inner hood 7 with splines 8 and a pouring tube 9, said inner hood being engaged to the collar 5 of the discharge sleeve 1 by means of a thread 10, a removable gate 11 including a seat 12 and a check valve member 13, a sealing lip 14, a flange 15, an outer hood 16 with splines 17, transverse projections 18, a break-off member 19, and breakable strips 20. There is a plug 21 inside the collar 5 of the discharge sleeve 1, which is supported by raking props 22 and used to shut off the pouring tube 9, and there are windows 23 with inwardly bent projections 24 on the wall of the discharge sleeve 1 above the longitudinal ribs 4, said windows being spaced evenly around the periphery of the discharge sleeve.
The mating surfaces 25 of the pouring tube 9 and the plug 21 are tapered.
The closure can be equipped with a sealing gasket 26.
The proposed closure will be assembled and used as follows.
The inner hood 7 is screwed hard on the discharge sleeve 1, which results in the plug 21 closing tightly the bore of the pouring tube 9. Then the discharge sleeve containing the inner hood will be inserted fully into the outer hood 16, thereby the splines 17 of the outer hood 16 engage the splines 8 of the inner hood 7, and the lower end of the outer hood 2 is restrained against the axial movement by means of the transverse projections 18. Afterwards, the valve member 13 will be placed into the removable gate 11, and the removable gate will be inserted into the discharge sleeve through the inlet end using some force. The sealing gasket 26 will be installed onto the flange 15, if necessary. The assembled closure will be forced hard onto the bottleneck. After that, the inwardly bent projections 24, sealing lips 14, located on the exterior surface of the removable gate 11, and the splines 17 sit tight on the bottleneck, inside and outside. As a result, the bottle is sealed tightly.
To open the closure for the first time, the outer hood 16 will be screwed counterclockwise, thereby breaking the strips 20 and releasing the break-off member 19 due to the rise of the inner hood 7 relative to the collar 5. As a result, the bore in the pouring tube 9 opens, and the contents of the bottle can be discharged.
To close the bottle, the outer hood should be fully screwed clockwise.
Filing Document | Filing Date | Country | Kind | 371c Date |
---|---|---|---|---|
PCT/RU04/00504 | 1/20/2005 | WO | 00 | 1/20/2006 |