Abstract: A filling, emptying, and air venting closure for a liquid containing hollow article having a flexible wall, and the combination of the closure with such article. The closure has a hollow stem having a root and a free outer end, a sheet-like member sealingly attached to the root of the stem being adapted for sealing attachment to the flexible wall of the inflatable article. The sheet-like member is selectively deformable to allow the stem to be removed from a first position, in which it lies inwardly of the outline of the hollow article, into a second position in which it protrudes from the flexible wall of the article to which it is attached and is disposed in a second position, generally at right angles to its first position. The stem has a threaded outer end on which there is removably mounted a partial closure device having a gas preminable member which provides for the passage of a gas outwardly therethrough from the interior of the hollow article, said gas preminable device being impreminable to liquid.

Abstract: Dual firing inflator for an inflatable article. A first gas containing capsule is pierced by energy supplied either manually or by a compressed spring of the like and the gas from the pierced first capsule powers a second piercing pin which pierces a second gas containing capsule. This reduces the amount of externally applied energy which is necessary to operate the inflator while supplying the inflatable article with an amount of gas which is twice that contained in capsules which are normally used with inflators of the same general type.