The present invention relates to sealing valves that can be mounted within a container wall, enabling controlled fluid flow along both inner and outer surfaces of the sealing valve in the same distal direction.

A ventilation component 1a includes an internal member 10, a gas-permeable membrane 20, and an external member 30. The internal member 10 has an open tubular structure, and has a protruding portion 11 on an outer circumferential surface of the open tubular structure. The gas-permeable membrane 20 covers one opening of the internal member 10. The external member 10 is formed to have a closed tubular structure and has a hooking portion on an inner circumferential surface of the closed tubular structure, the hooking portion hooking the protruding portion. The internal member 10 is fixed to the external member 30 in a state where the internal member 10 is inserted inside the external member 30 and the external member 30 hooks the protruding portion 11 by the hooking portion 33. The ventilation component 1a is capable of being fixed to a projection 2p tubularly protruding from an outer surface of a housing 2. When the internal member 10 and the external member 30 are viewed in plan along an axis A, the ventilation component 1a satisfies a requirement I.sub.H < O.sub.B < O.sub.O.

A ventilation component (1a) is to be attached to a housing (2) at a ventilation opening (5). The ventilation component (1a) includes a gas-permeable membrane (10), a ventilation valve (20), and a structural member (30). The structural member (30) has an inner space (40), and at least one of a first ventilation path (51) and a second ventilation paths (52). The inner space (40) is a space accommodating the gas-permeable membrane (10) and/or the ventilation valve (20). The first ventilation path (51) allows the inner space (40) to communicate with an external space of the ventilation component (1a). The first ventilation path (51) has a first inner opening (51i) and a first outer opening (51e), and the first inner opening (51i) faces the first outer opening (51e). The first inner opening (51i) and the first outer opening (51e) are present along a plane parallel to an outer surface (2s) of the housing. The second ventilation path (52) has a second inner opening (52i) and a second outer opening (52e), and the second inner opening (52i) is present without facing the second outer opening (52e).

Provided is a pressure balancing device, having a mounting seat and a cover, wherein an accommodating cavity is formed between the mounting seat and the cover. The pressure balancing device may also have a partition member, wherein the partition member divides the accommodating cavity into first and second accommodating cavities. The partition member may also include a support portion and an elastic portion, the support portion being disposed on the elastic portion and having a vent hole capable of fluidly communicating the accommodating cavities. The elastic portion is elastically deformable so as to move the support portion relative to the cover. The pressure balancing device may also have a breathable film that is disposed on the support portion and covers the vent hole, and that is movable as the support portion moves.

An air valve assembly includes a housing defining an internal channel, a plunger member positioned in the internal channel and configured to slide relative to the housing, a biasing member positioned in the internal channel and configured to apply a biasing force onto the plunger member, a sealing member defining a first inflation aperture, the plunger member slidably received by the first inflation aperture, a second deflation aperture defined by the housing and in fluid communication with the internal channel, and a deflation control member slidably connected to the housing, the deflation control member configured to selectively seal the second deflation aperture.

An air valve assembly includes a housing defining an internal channel, a plunger member positioned in the internal channel and configured to slide relative to the housing, a biasing member positioned in the internal channel and configured to apply a biasing force onto the plunger member, a sealing member defining a first inflation aperture, the plunger member slidably received by the first inflation aperture, a second deflation aperture defined by the housing and in fluid communication with the internal channel, and a deflation control member slidably connected to the housing, the deflation control member configured to selectively seal the second deflation aperture.

A breather device includes an intake path configured to communicate between an interior space of a target case and an exterior space, an exhaust path configured to communicate between the interior space and the exterior space and at least partially separated from the intake path, an intake valve inserted in the intake path and configured to allow outside air to flow into the interior space only when an internal pressure Pi is lower, at least by a fixed extent, than an external pressure Po, and an exhaust valve inserted in the exhaust path and configured to allow gas within the interior space to flow toward the exterior space only when the internal pressure Pi is higher, at least by a fixed extent, than the external pressure Po, and a water stop filter disposed downstream of the intake valve in an intake air flowing direction in the intake path.

A breather device includes an intake path configured to communicate between an interior space of a target case and an exterior space, an exhaust path configured to communicate between the interior space and the exterior space and at least partially separated from the intake path, an intake valve inserted in the intake path and configured to allow outside air to flow into the interior space only when an internal pressure Pi is lower, at least by a fixed extent, than an external pressure Po, and an exhaust valve inserted in the exhaust path and configured to allow gas within the interior space to flow toward the exterior space only when the internal pressure Pi is higher, at least by a fixed extent, than the external pressure Po, and a water stop filter disposed downstream of the intake valve in an intake air flowing direction in the intake path.

A one-way ventilation valve for integration with a face mask comprising an upper retaining ring, a lower retaining ring, and an elastomeric diaphragm; the upper retaining ring comprising a conduit positioned centrally by two sets of spokes, the conduit adapted to act as an oxygen port for receiving oxygen fed to the mask through tubing. The mask is adapted to protect caretakers from sick patients wearing the mask.

A case for an electronic cigarette vaporiser, the case including an automatic lifting mechanism that lifts the vaporiser up a few mm from the case to enable a user to easily grasp the vaporiser and withdraw it from the case. The lifting mechanism can be spring-based. The case both re-fills the vaporiser with liquid and also re-charges a battery in the vaporiser.