Abstract: Containers for holding flowable materials and releasing the same into carbonated water.

Abstract: A domestic apparatus for purifying drinking water, comprising a feed water inlet and a purified water outlet, a filter device comprising prefilter means (52) and microporous membrane filter means (53) interposed between said inlet and said outlet, and means for driving the water through said filter at a constant flow rate (51). A method of purifying drinking water, which comprises causing the water to flow at a constant flow rate through a purification filter device comprising prefilter means and microporous membrane filter means.

Abstract: An apparatus and corresponding method for purifying water is described. The apparatus includes a supporting housing, a source of power, a filter device containing at least one interchangeable filter unit having one or more filter elements, a mechanism for driving water through the filter device and a timing mechanism for monitoring elapsed time of operation and a mechanism for monitoring cumulative volume of water having flowed through the filter device which are each coupled to a filter memory. The mechanism for driving water through the filter device includes a cylinder holder on which an interchangeable gas pressure cylinder can be mounted, a gas release mechanism housed in the cylinder holder, a flow regulator and conduits connecting the other components together.

Abstract: An apparatus for aerating liquids contained in bottles includes a safety mechanism for detecting irregularities in the bottle and preventing undesired pressurization of a bottle having such irregularities. The apparatus includes a frame with a reference surface. A mechanism for holding the bottle in place causes the bottle to rest against the reference surface. Any irregularity in the bottle causing substantial angular displacement of the bottle activates a safety release valve in the mechanism, thus preventing over pressurization.