A closure device (1) for a product dispensing container. The closure device comprises a base (2) having a body with a connector portion (2a) adapted to mount the closure device on a product container. The base comprises a product channel (5) and a rupturable seal (4) occluding the product channel an
A closure device (1) for a product dispensing container. The closure device comprises a base (2) having a body with a connector portion (2a) adapted to mount the closure device on a product container. The base comprises a product channel (5) and a rupturable seal (4) occluding the product channel and forming a lower seal of the closure device. A rotary part (20) is rotatably journalled on the base. The rotary part has a product passage (21) in communication with the product channel in the base. An upper sealing arrangement (30) is arranged on the rotary part and forms an upper seal of the closure device that is remote from the lower seal and seals the product passage of the rotary part. A lower seal rupturing member (40) is movable in a rupturing motion relative to the base to rupture the rupturable lower seal. A motion transfer (27, 42, 3b, 41) means is provided and is adapted so as to effect the rupturing motion of the lower seal rupturing member upon suitable rotary actuation of the rotary part. A protective overcap (10) is removable by the user.
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1. A closure device for a dispensing a product from a product container, said closure device comprising: a base having a body with a connector portion adapted to mount the closure device on a product container, said base comprising: a product channel in the body of base, anda rupturable seal occludi
1. A closure device for a dispensing a product from a product container, said closure device comprising: a base having a body with a connector portion adapted to mount the closure device on a product container, said base comprising: a product channel in the body of base, anda rupturable seal occluding the product channel and forming a lower seal of the closure device,a rotary part, that is rotatably journalled on the base,wherein the rotary part has a product passage in communication with the product channel in the base,an upper sealing arrangement arranged on the rotary part and forming an upper seal of the closure device that is remote from the lower seal and seals the product passage of the rotary part,a lower seal rupturing member that is movable in a rupturing motion relative to the base to rupture the rupturable lower seal,motion transfer means adapted so as to effect the rupturing motion of the lower seal rupturing member upon suitable rotary actuation of the rotary part, anda protective overcap that is removable by the user,wherein the upper sealing arrangement is in closed condition prior to first time removal of the overcap,wherein the overcap is connected to the base and is adapted to be rotated by the user with respect to the base in order to remove the overcap from the base,wherein the overcap engages the rotary part so as to cause rotary motion of the rotary part upon removal of the overcap, so that the lower seal rupturing member effects the rupturing motion to rupture the rupturable lower seal and thereby open the product channel by user removal of said overcap,and wherein the upper sealing arrangement is adapted to remain in closed condition, during the process of removal of the overcap. 2. The closure device according to claim 1, wherein the upper sealing arrangement is a self-closing sealing arrangement. 3. The closure device according to claim 1, wherein the upper sealing arrangement comprises an underpressure actuated valve that opens when an underpressure is established at an outlet of the valve. 4. The closure device according to claim 1, wherein the overcap has a tamper evident feature to evidence first time removal of the overcap from the base. 5. The closure device according to claim 1, wherein the lower seal rupturing member has a tubular body, said body being located partly in the product channel in the base and partly in the product passage in the rotary part, such that the product flows through the lower seal rupturing member upon dispensing. 6. The closure device according to claim 1, wherein the lower rupturable seal is a foil secured at its periphery to the body of the base. 7. The closure device according to claim 1, wherein the body of the base comprises an annular wall portion having an exterior side, the overcap and the exterior side of the annular wall portion having cooperating threads or bayonet means. 8. The closure device according to claim 7, wherein said annular wall portion has an interior side in which the rotary part is journalled. 9. The closure device according to claim 1, wherein the rotary part comprises a tubular portion extending into a bore of the base that forms the product passage, and wherein an annular seal is present between said tubular portion and the base. 10. The closure device according to claim 1, wherein the connector portion is adapted to secure the base to one or more film walls of a collapsible pouch. 11. The closure device according to claim 1, wherein the overcap is at least partly transparent to allow the user to see the rotary part and/or upper sealing arrangement of the closure device. 12. The closure device according to claim 1, wherein the overcap is embodied to delimit a hermetically sealed space prior to removal by the user, thereby shielding the upper sealing arrangement from the environment. 13. The closure device according to claim 1, wherein the motion transfer means comprises rotation-to-helical motion transfer means that is adapted to entrain the lower seal rupturing member with the rotary motion of the rotary part, and at the same time cause the lower seal rupturing member to move in an axial direction towards the rupturable lower seal so that the lower seal rupturing member engages the rupturable lower seal causing the rupturing thereof. 14. The closure device according to claim 1 further comprising cooperating linear guide members on the body of the base and on the lower seal rupturing member, wherein the motion transfer means comprises rotation-to-linear motion transfer means, and wherein the rotary motion of the rotary part upon first time removal of the overcap is transferred to the lower seal rupturing member by the rotation-to-linear motion transfer means. 15. The closure device according to claim 1, wherein the rotary part is provided with one or more outwardly protruding members, wherein the overcap is provided with one or more inwardly protruding elements, and wherein the outwardly protruding members and inwardly protruding elements mesh with each other so that the rotation of the overcap is followed by the rotary part. 16. The closure device according to claim 1, wherein the motion transfer means is adapted so as to affect the rupturing motion of the lower seal rupturing member upon suitable rotary actuation of the rotary part caused by removal of the overcap. 17. A product container provided with a closure device, said closure device comprising a base having a body with a connector portion mounted on the product container, said base comprising a product channel in the body of base, wherein a rupturable seal occludes the product channel and forms a lower seal,wherein the closure device comprises a rotary part that is rotatably journalled on the base,wherein the rotary part has a product passage in communication with the product channel,wherein the closure device comprises an upper sealing arrangement arranged on the rotary part and forming an upper seal that is remote from the lower seal and seals the product passage of the rotary part,wherein the closure device comprises a lower seal rupturing member, which is movable in a rupturing motion relative to the base to rupture the rupturable lower seal,wherein the closure device comprises a motion transfer means adapted so as to effect the rupturing motion of the lower seal rupturing member upon suitable rotary actuation of the rotary part,wherein a protective overcap is provided that is removable by the user,wherein the upper sealing arrangement is in closed condition prior to first time removal of the overcap,wherein the overcap is connected to the base and is adapted to be rotated by the user with respect to the base in order to remove the overcap from the base,wherein the overcap engages on the rotary part so as to cause rotary motion of the rotary part upon removal of the overcap, so that the lower seal rupturing member effects the rupturing motion to rupture the rupturable lower seal and thereby open the product channel by user removal of said overcap,and wherein the upper sealing arrangement is adapted to remain in closed condition during the process of removal of the overcap. 18. Method for dispensing a product from a product container having a closure device according to claim 17, wherein the overcap is removed by the user for the first time thereby rupturing the lower rupturable seal of the closure device. 19. The product container according to claim 17, wherein the product container is embodied as a collapsible pouch.
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