Patent ID: 8397951

Claim:
A device for containing and dispensing fluid substances, comprising: a rigid container having a container neck defining an aperture which provides access to a cavity of the container, wherein the container neck has an external threading; a thermoplastic bag housed in the rigid container while providing an interspace between the bag and an inside surface of the rigid container, the bag having a neck defining a hole to provide access to a cavity of the bag, the neck of the bag further having a radial flange; a manually operable pump including a tube extending into the bag, for withdrawing a fluid substance from the bag; a first ring cap screwed onto the external threading of the container neck; the second ring cap has a pressing part that presses the pump to the radial flange to form a seal between the pump and the bag, and to secure the bag to the first ring cap and the second ring cap, by the second ring cap being locked to the first ring cap; rotational locking means for rotationally locking the second ring cap to the first ring cap; and at least one air passage providing air communication between the interspace and the exterior of the rigid container.