Patent EA-003962-B1 (EA)
Title: Closure device
Inventor: PLOKHUTA OLEG IVANOVICH
IPC: B65D49/02
Filed: 2003-02-28
Abstract: 1. A closure device, comprising a drain sleeve with coaxially arranged external and internal nipples on the input end, inner capsule with a drain pipe at its end and slits on the side outer surface, said capsule is arranged on the drain sleeve via thread enabling its axial displacement during rotation, an outer capsule with and slits on the inner surface for interacting with slits of the inner capsule, and a decorative housing with a tear-off element at its end, characterized in that the drain sleeve is provided with a one-way valve which has a locking means on the outer surface to interact with symmetrically-arranged locking means on the surface of the drain sleeve. 2. The closure device according to claim 1, characterized in that the one-way valve is arranged in the internal nipple. 3. The closure device according to claim 1and 2, characterized in that provided with a seal arranged between the external and internal nipples of the drain sleeve. 4. The closure device according to claim 1, characterized in that the one-way valve is arranged outside the internal nipple. 5. The closure device according to claim 1and 4, characterized in that the one-way valve comprises a flange at the end, and at least one sealing protrusion is provided on the outer surface along its perimeter of the tubular housing of the one-way valve. 6. The closure device according to any one of claims 1 to 5, characterized in that the mating surfaces of the one-way valve and the drain sleeve are conical for rigid fixation with each other. 7. A closure device, comprising a drain sleeve with coaxially arranged external and internal nipples on the input end, inner capsule with a drain pipe at its end and slits on the side outer surface, said capsule is arranged on the drain sleeve via thread enabling its axial displacement during rotation, an outer capsule with and slits on the inner surface for interacting with slits of the inner capsule, and a decorative housing with a tear-off element at its end, characterized in that an outer capsule is provided with an inner lock at its end surface interacting with a flange at the input end of the drain sleeve. 8. The closure device according to claim 7, characterized in that a decorative housing is mounted on the outer capsule to exclude their mutual rotation and is arranged with a gap for mutual rotation. 9. The closure device according to claim 7 and 8, characterized in that the drain sleeve is provided with a one-way valve. 10. The closure device according to claims 7 to 9, characterized in that the one-way valve is arranged in the internal nipple. 11. The closure device according to claims 7 to 10, characterized in that the one-way valve comprises a locking means at the outer end surface for interacting with a symmetrically-arranged locking means on the surface of the drain sleeve. 12. The closure device according to claims 7 to 9, characterized in that the one-way valve is arranged outside the internal nipple. 13. The closure device according to claims 7 to 9 and 12, characterized in that the one-way valve comprises a flange at the end, and at least one sealing protrusion is provided on the outer surface along its perimeter of the tubular housing of the one-way valve. 14. The closure device according to claims 7 to 13, characterized in that the mating surfaces of the one-way valve and the drain sleeve are conical for rigid fixation with each other.