A reed valve module includes a module body and a reed petal. The module body includes a seating surface located on a first side of the module body and a sealing face located on a second side the module body. The reed petal is positioned adjacent to the second side of the module body and adapted to seal against the sealing face when the reed petal is in a closed position, wherein the reed valve module is a self-contained modular unit that is adapted to be inserted into a receiving cavity of a modular reed valve assembly such that the seating surface is positioned adjacent to a retaining surface of the modular reed valve assembly and an interfacing surface of the reed valve module is positioned adjacent to a second retaining surface of the modular reed valve assembly, and wherein the reed valve module is adapted to be captured and retained within the modular reed valve assembly between the first and second retaining surfaces.

Self-adhesive label valves are disclosed having release chimneys in correspondence of a plurality of intersection cuts in a membrane-island of film (tape) carrier (C) with cuts made in the overlying self-adhesive label made of polymeric film (E) with an adhesive layer. All are inscribed within (i.e. inside) the perimeter of the membrane-island, and are destined to overlie so as to occlude pre-formed release openings in the packaging film of heatable food, and ensure in an outstandingly reliable manner a gradual release of vapors while heating, without causing an undesirable collapse of the packaging film.

Reed valve modules and corresponding reed valve assemblies are disclosed. In one embodiment, the reed valve module includes a body having a single or a plurality of sealing faces, a seat and flow passages from the seat to the sealing face(s). The reed valve module also includes one or a plurality of petals. In some embodiments, the module further includes a petal guard. Novel reed valve assemblies are disclosed incorporating the reed valve modules. One embodiment of the reed valve assembly includes a seat with a plurality of fluid conduits, a retainer plate with a plurality of fluid conduits and a means for receiving recesses between the seat plate and retainer plate. Other devices, systems, and methods related to reed valve modules and valve assemblies are also disclosed.

Disclosed is a check valve reliably closing a fluid path without the need of machining with high accuracy. The check valve includes a pair of members with clamping surfaces; and a valve body clamped by the clamping surfaces from both sides in a thickness direction of the valve body. The valve body is formed from an elastic body and includes an outer frame, a sealing part arranged inside the outer frame and configured to open and close a fluid path formed in one of the pair of members, and a coupling part configured to allow fluid to pass therethrough in the thickness direction and configured to couple the outer frame and the sealing part to each other. The outer frame has a thickness larger than an interplane dimension between the clamping surfaces when the pair of members are joined together.

An odor-trap device (1) for in particular flushing-water-free sanitary devices, for example urinals, comprises an outflow element (2) with a sealing wall (3), and also comprises a sealing membrane (4), which is in sealing contact with the sealing wall (3) in a closure position and, in the presence of a liquid, such as urine, is pushed away from the sealing wall (3) from the closure position into an open position, as a result of which a gap (19) is formed between the sealing membrane (4) and sealing wall (3), it being possible for the liquid to be led away through said gap, and further comprises a mounting element (5) for mounting the sealing membrane (4) in relation to the sealing wall (3). The odor-trap device (1) is characterized in that the seating membrane (4) has a seating surface (6) which runs substantially parallel to the sealing wall (3), wherein the sealing surface (6) butts against the sealing wall (3) substantially with surface-area contact, or wherein the sealing surface (6) is spaced apart from the sealing wall (3) such that the liquid film which is present, at least in part, between the sealing wall (3) and the sealing surface (6) provides a force of adhesion between the sealing wall (3) and seating surface (6).

A valve device for a packaging configured to hold a product releasing a gas. The valve device comprises, in an embodiment, a first inner film provided with a first opening and a second outer film covering the first opening. Between the first inner and the second outer film a first chamber is provided. The first opening provides a gas communication between the first chamber and the interior of the packaging. The first and second films define a channel being in fluid communication with the first chamber. Further, the valve device comprises a second chamber, and the channel connects the first and second chamber. The second chamber comprises a second opening being in fluid communication with the exterior of the packaging. At least one of the first and second chambers comprises a liquid and at least one spacer.

A valve with an internal member is disclosed which allows exhaled carbon dioxide to escape from a breathing circuit when the circuit gas pressure drops below a threshold pressure. The valve operates by occluding one or more ports under a relatively high pressure and opening the one or more ports under a relatively low pressure. The internal member is attached to the body of the valve at two or more locations on the internal member. The internal member moves in a direction perpendicular to the gas flow through the valve.

A pressure equalization element for a housing, such as a lithium-ion accumulator, includes a membrane and at least two parallel non-return valves. The membrane is connected in series to the non-return valves, which are positioned opposite each other. The non-return valves are formed by two valve plates and a valve membrane. The plates define at least one outlet chamber and at least one inlet chamber which each have a respective entry opening and exit opening. The membrane is positioned between the plates and includes at least two valve dampers, the entry openings of the inlet and outlet chambers sealed by a respective damper. Pressure equalization elements of this type can thus be cost-effectively and logically implemented via few components, while avoiding loose components. Such elements can be included in, for example, a housing, battery cell module, or motor vehicle.

A flow-controlling unit provided in a flow channel is disclosed. The flow-controlling unit provided in a flow channel, according to one embodiment of the present invention, comprises: a plate which is disposed perpendicular to the moving direction of a fluid in a flow channel, and on which are formed multiple fluid through-holes through, which the fluid passes; and one or more flow-control ling pieces which are provided in a position corresponding to the fluid through-holes, form an inclination with respect to the plate in the direction of the inflow of the fluid, are capable of tilting on the plate, and control the degree of opening of the fluid through-holes by being tilted due to pressure applied from hydraulic pressure of the fluid.

A screen valve (210) to control fluid flow comprising at least one multi-apertured valve plate (220) movable laterally relative to a multi-apertured valve seat (230) between a closed configuration whereby the apertures are not registered to prevent fluid flow, and an open configuration whereby the apertures are registered to permit fluid flow, wherein the valve plate is supported by a multi-apertured carrier plate (240) that moves laterally in synchrony with the valve plate (220) to maintain a predetermined lateral registration between their respective apertures as the valve plate moves between the open and closed configurations, the valve plate being movable relative to the carrier plate so as to be able to lift off and return into contact with the valve seat. The co-moving carrier plate shields the valve plate so as to minimise pressure locking. Aerodynamic features may be incorporated to urge the valve plate (220) towards or away from the carrier plate (240).