An improved deflator valve is described herein. The deflator valve has a main body with one or more ports, one or more vents, or port or vent slots for introducing air into or relieving pressure from within the main body in a vortex, circular flow. The deflator valve also includes a piston having an O-ring disposed around an outer circumference of the piston. The O-ring of the piston and the ports and vents are effective for reducing noise and deflation time and improving accuracy and ease of adjusting a pressure setting. The deflator valve can further include a dual or variable rate spring that can achieve an extensive destination pressure range. The deflator valve can also include a threadless lead in, fewer valve stem threads, or a lock chuck for enhanced valve stem attachment methods.

A device for adjustment of pressure in tires includes a chamber with shape memory and a valve. The valve is a three-way valve with inputs interconnected with the external environment and the tire internal space, where one input is fitted with a valve, the next input is connected to one end of the chamber with shape memory, and the last input is interconnected with the closure element. The device for adjustment of pressure in tires includes the chamber with shape memory interconnected with the external environment through an input and with the tire chamber through an output and fitted with at least one valve. The length of the chamber in the direction of tire rotation equals 0.001 to 0.5 of the tire perimeter, where the volume of the chamber before deformation to volume of the chamber during deformation ratio is the same or higher then the desired tire pressure to pressure of the external environment ratio.

Valves and valve systems are provided that are useful for integration with inflatable indwelling medical devices to prevent over-inflation of retention balloon.

An improved deflator valve is described herein. The deflator valve has a main body with one or more ports, one or more vents, or port or vent slots for introducing air into or relieving pressure from within the main body in a vortex, circular flow. The deflator valve also includes a piston having an O-ring disposed around an outer circumference of the piston. The O-ring of the piston and the ports and vents are effective for reducing noise and deflation time and improving accuracy and ease of adjusting a pressure setting. The deflator valve can further include a dual or variable rate spring that can achieve an extensive destination pressure range. The deflator valve can also include a threadless lead in, fewer valve stem threads, or a lock chuck for enhanced valve stem attachment methods.

Apparatus and method of a valve assembly that may be integrated into an inflatable device. The valve assembly may include a valve that is rotatable within a housing. The valve may allow for one-way passage of air either into or out of the inflatable device depending on the configuration of the valve. The valve system may provide an easy way to both inflate and deflate an inflation device with minimal effort from a user.

An air bag packaging arrangement and a self-adhesive checking valve, the air bag packaging arrangement includes an air bag and an air valve which is the self-adhesive checking valve. The air bag includes first and second cell overlapped layers to form an air chamber and a valve opening. The air valve includes first and second sealing films overlapped between the first and second cell layers, and a strengthening film provided between the first valve film and the first cell film to strengthen a joint strength between the first valve film and the first cell film, so as to prevent the first valve film from being broken, so as to further avoid an air leakage.

A packing box is provided. The packing box is formed by several splicing materials of a standard model. The splicing material on the top of the packing box is provided with an air pump with automatic pumping and the pressure monitoring functions. The inner side of each splicing material is provided with an air bag, and the air bags are inflatable and connected to one another via connection tubes. The air bags are able to be spliced or separated with one another, and the shape of each air bag is subject to the outline dimension of a packaged object when the air bags are inflated. The size and shape of the packing box can be determined according to the size and shape of the packaged object, so is applicable to the objects with any sizes and shapes. The packing box does not need additional fillers and is recyclable.

The air compression system includes an air compressor and a detection device. A first pressure transducer is provided to measure an air pressure at an output port of the air compressor. A second pressure transducer in the detection device measures an air pressure in a channel of the detection device. A conduit in the detection device regulates an air flow to be compatible with that flowing through the inlet of the aerated object. The measurements from the first pressure transducer and the second pressure transducer are transmitted to and compared by a first control circuit of the air compressor, and an internal pressure of the aerated object is estimated. When the estimated internal pressure of the aerated object is smaller than a desired pressure, the air compressor pumps air into the object through the conduit of the detection device in a linear manner.

A packing box is provided. The packing box is formed by several splicing materials of a standard model. The splicing material on the top of the packing box is provided with an air pump with automatic pumping and the pressure monitoring functions. The inner side of each splicing material is provided with an air bag, and the air bags are inflatable and connected to one another via connection tubes. The air bags are able to be spliced or separated with one another, and the shape of each air bag is subject to the outline dimension of a packaged object when the air bags are inflated. The size and shape of the packing box can be determined according to the size and shape of the packaged object, so is applicable to the objects with any sizes and shapes. The packing box does not need additional fillers and is recyclable.

A safety valve replaces a tire valve. The valve includes a generally elongate hollow main body having an upper portion, a lower flex hose connector, a side tubular branch having a valve seat with a ball valve, an electronics housing having a battery, motor and a drive pin for the ball valve. The lower flex hose connector is adapted for connection to a flex hose or valve stem of the vehicle tire. The side branch branches from the main body and communicates with the hollow interior of the main body. The side branch has a plurality of air exit apertures at its periphery. The valve seat includes a base with an aperture therein through which the drive pin can extend through to engage the ball valve. The ball valve sits in the base and is biased in the valve seat via a spring to cover the aperture.