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A liquid purifying device for dispensing a liquid, including a container which has an interior space for storing a liquid, and a lid member for closing the interior space. The liquid is delivered out of the container, due to a pressure of a compressed air which is introduced into the interior space

A liquid purifying device for dispensing a liquid, including a container which has an interior space for storing a liquid, and a lid member for closing the interior space. The liquid is delivered out of the container, due to a pressure of a compressed air which is introduced into the interior space by air pumping means. The air pumping means includes a cylinder member which is reciprocated between an advanced position and a retracted position. The cylinder member is normally biased toward the advanced position, but may be held in the retracted position where appropriate. The lid member of the container has a liquid delivery path through which the liquid is delivered as desired, when a valve disposed in the path is placed in its open position upon pressing of a push-operated member. In the liquid delivery path, there is provided a filter adapted to remove bacteria from the liquid delivered through the path.

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A liquid purifying device for dispensing a liquid, comprising: a container having an interior space for storing said liquid, said container including a lid member for fluid-tightly closing an opening of said interior space; air pumping means provided on said lid member, for passing air through an ai

A liquid purifying device for dispensing a liquid, comprising: a container having an interior space for storing said liquid, said container including a lid member for fluid-tightly closing an opening of said interior space; air pumping means provided on said lid member, for passing air through an air inlet passage thereby introducing compressed air into said interior space, said air pumping means including a cylinder member which is reciprocated between a fully advanced position in which said cylinder member protrudes from said lid member, and a fully retracted position in which said cylinder member is received in said lid member; biasing means for biasing said cylinder member toward said fully advanced position; holding means for holding said cylinder member in said fully retracted position against a biasing force of said biasing means; first valve means disposed in said air inlet passage, for permitting a supply flow of said air therethrough into said interior space to raise a pressure within said interior space, and for inhibiting a discharge flow of said compressed air and said liquid therethrough out of said interior space; a liquid delivery path which extends through said lid member so as to communicate at one end thereof with aid interior space and at the other end with an exterior space of the container, said liquid being delivered out of said interior space through said liquid delivery path, due to the pressure of said compressed air within said interior space; filtering means disposed in said liquid delivery path and submerged in said liquid, for filtering said liquid to remove bacteria from said liquid delivered through said liquid delivery path; second valve means disposed in a portion of said liquid delivery path which is downstream of said filtering means, as viewed in a direction of delivery of said liquid, said second valve means having a closed and an open position for closing and opening the liquid delivery path, respectively; and dispensing means for operating said second valve means between said closed and open positions, said dispensing means comprising a push-operated member received in said lid member and having an operating surface exposed to said exterior space of said contaerin, wherein said lid member has an annular groove, and said cylinder member is received in said annular groove such that said cylinder member is movable relative to said lid member, between said fully retracted position and said fully advanced position.