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.

The present invention relates to inflatable bodies or systems with bounding walls or bladder structures and at least one valve assembly thermally bonded thereto. More particularly, the present invention provides a valve assembly for inflatable bodies typically made from a thermoplastic rubber material or the like, which will exhibit significantly increased strength and durability during inflation and while inflated, especially at and around the interface between the air valve assembly and the bounding wall of the inflatable body because of the enhanced strength of the interface through thermal sealing.

A constant pressure valve for an inflatable product is provided. The constant pressure valve comprises: a housing defining an airflow channel within. A first sealing seat is disposed in the airflow channel and a first through hole is formed in the first sealing seat. An inflation valve core comprises: a first actuating assembly and a first valve head. The first actuating assembly is configured to drive the first valve head to disengage from the first through hole, or to engage with the first through hole in a sealing manner. The constant pressure valve is switchable between an inflation state, in which the first valve head is disengaged from the first through hole, and the airflow channel is unblocked; and a cut-off state in which the first valve head is engaged with the first through hole in a sealing manner, and the airflow channel is blocked by the first valve head.

A fluid container has a first and second flexible membrane forming at least one chamber, a channel configured to receive pressurized inert gas, and one or more check valve assemblies disposed therebetween. The one or more check valve assemblies is formed from a continuous third flexible membrane folded at an apex, and configured to provide the flow of pressurized fluid in one direction upon inflation, from the channel to the at least one chamber, while restricting flow in the opposite direction. The one or more check valve assemblies are characterized in that they do not require pre-printing or electronic registering, thus allowing for an inflation flow rate of at least twice that of conventional inflatable packaging systems.

An evacuation system may comprise a packboard, an evacuation slide configured to deploy from the packboard, and a canopy support apparatus is disclosed. The canopy support apparatus may comprise a valve extending from a proximal end of a canopy support tube toward a distal end of the canopy support tube and into an internal cavity of the canopy support tube. The valve may be configured to open a channel during inflation. The valve may be configured to seal the channel via internal pressure in the internal cavity acting on a sealing component of the valve when the canopy support tube is in an inflated state.

A fluid pressure regulator includes at least one fluid inlet conduit for connection to a pressurised fluid source, an outlet conduit. and an elastically expansible chamber arranged between the at least one fluid inlet conduit and the outlet conduit. The elastically expansible chamber being configured to elastically deform the at least one fluid inlet conduit upon expansion to modify the cross sectional area of the at least one fluid inlet conduit.

An air valve comprises a valve body having a communicating tube, a flange, and a thread, wherein an airway is formed within the communicating tube, the flange is mounted on and around the communicating tube, and the thread is formed on an exterior surface of the communicating tube. The air valve comprises a supporting member being tubular and embedded in the communicating tube and surrounding the airway. The air valve comprises a cap having a cavity, is screwed with the thread of the communicating tube, and closes one of two opposite ends of the communicating tube. The air valve comprises a valve flap connected to the communicating tube and closing the other one of the two opposite ends of the communicating tube. The air valve comprises a packing ring mounted in the cavity of the cap.

An inflation system includes a base, an adjuster and a first sealing device. The base is provided with a receiving cavity, an air inlet and an inflation inlet, the adjuster is rotatably configured in the receiving cavity, and the first sealing device is adapted for sealing the inflation inlet. The adjuster is turnable between a communication position and a separation position to open or close the inflation inlet, at the communication position, the first sealing device is openable under an action of high pressure air to communicate the inflation inlet with the air inlet; at the separation position, the adjuster stops high pressure air from opening the first sealing device thereby separating the inflation inlet from the air inlet. Different air passages can be selected in the invention, and the usage is convenient and safe.

An inflatable object has a curved section, and an improved valve featuring a flexible chute that has an inner edge connected to said inflatable object and is rollable and unrollable between a rolled-up closed position and an unrolled open position. The inner edge is connected to said inflatable object along said curved section at a location and orientation operable to use pressure inside said inflatable object to resist unrolling of said flexible chute from the rolled-up closed position, thereby imparting a self-locking functionality to the valve.

Disclosed are methods, systems and devices for evacuation of fluid, for example, air or gas, from a container or enclosed area.