Abstract: The child-resistant package (100) can be readily opened by an adult with a one-hand operation. The pushtab (123, 123'), which together with the interlocking tooth (119) form the child-resistant feature of the package, is placed on the closure (120). Therefore, an adult user may easily depress said pushtab and at the same time disengage said closure to open said package by using only one hand for both operations.

Abstract: A child resistant package comprises a container, a transition piece (112) and a closure (114). A pushtab (30, 130 or 230) on either the closure or the transition piece and an interlocking tooth (32, 132 or 232) on the other of the closure or the transition piece form the child resistant feature of the package. The pushtab (130) is moved inwardly to disengage the pushtab from the interlocking tooth (132) so that the closure may be unthreaded from the container. The transition piece and the closure are molded in a single piece in one molding process. The frangible connections (40) between the closure and the transition piece break upon the unthreading of the closure for the first time to give a tamper indication.

Abstract: A container suitable for containing and dispensing fluid materials comprising a hollow body wherein said container comprises a sealing and venting system consisting of a perforated area (4) comprising one or more perforations of the container in combination with a fluid-impermeable but gas-permeable membrane applied to said perforated area (4) such as to provide a liquid-impermeable sealing means (1) and gas-permeable venting means characterized in that said membrane is treated to reduce its surface energy.

Abstract: A cap for a container having a body and a closure. The body has a side wall and an adjoining top. The Side wall has means to let gases escape from the container to ambient. The top has an interior and at least one recess on the interior. The body further has a a line juxtaposed to the interior of the top. The interior and the liner are pierced by a hole through which a tubular part extends from the body. The sealing means maintains the liner pressed against the interior of the top in a leak-tight manner. The closure is a flip-top cap.