A bicycle wheel comprises a rim and a valve assembly. The rim includes a radially inner wall having an inner opening and a radially outer wall having an outer opening. A first portion of the rim includes a first securing feature (e.g., inner threads). The valve assembly is positioned in the inner opening and outer opening and includes a second securing feature (e.g., outer threads) engaging the first securing feature. The rim can include a plate that defines the first engaging feature. The valve assembly preferably includes a valve stem and a resilient bumper coupled to the valve stem and aligned with a second portion of the rim. The valve assembly can further include a seal member compressed between the valve stem and the rim. Preferably, the seal member is positioned in an annular groove in an underside of an enlarged head of the valve stem.

An inflator including in combination an inflator body having at one end an input for receiving the neck of a gas cartridge, a manifold assembly intended to be fluidly connected to an inflatable, a combination automatic and manual actuator assembly including a spring-loaded actuator including a pierce pin for fracturing a frangible seal of the gas cartridge, a bobbin with a dissolvable pill that retains the spring-loaded actuator in a cocked position and a hood connected onto the end of the inflator body, said hood including an inwardly-extending tab that engages the actuator to securely retain the hood onto the end of the inflator body by means of the inwardly-extending tab being grasped by the forked end of the actuator.

A self-inflation device for maintaining pressure in a tire includes a piston compartment, a piston, and an intake opening for fluidically connecting the piston compartment to ambient atmosphere. A valve controls airflow between the piston compartment and the inner space of the tire. Airflow between the piston compartment and the inner space is allowed when the valve is opened and prevented when the valve is closed. The piston is movable within the piston compartment between an air intake position, in which the intake opening fluidically connects the piston compartment and the ambient atmosphere, and a compression position, in which the piston fluidically seals the piston compartment from the intake opening, thereby creating a compression chamber. The piston opens and closes the valve, and cycles between the air intake and the compression positions, through application of centrifugal force onto the self-inflation device by rotation of the tire.

A flapper assembly for an aspirator system includes a flapper plate and a valve assembly. The flapper plate defines a first plurality of apertures. The valve assembly includes a first valve plate disposed over the first plurality of apertures and a first pressure relief assembly arranged to move the first valve plate relative to the flapper plate.

An inflatable survival vest includes an inflatable bladder having an inflation inlet through which a gas is input to inflate the bladder. The bladder is configured in the shape of a vest. The bladder has a plurality of parallel seams that divide the bladder into tubular channels. The tubular channels cause the vest to have a wavy outwardly facing surface with crests and troughs and a wavy inwardly facing surface with crests and troughs. An inner air chamber is positioned along the inwardly facing surface of the bladder. A shell with limited stretch-ability overlies the inflatable bladder, thereby limiting outward expansion of the bladder such that the bladder is adapted to expand inwardly pressing the inner air chamber against a body of a person wearing the bladder.

A highflow air coupling system is provided. The highflow air coupling system has a valve chamber housing having a plurality of openings including a user serviceable port and a reversible air flow valve. The interior of the valve chamber housing has a multi-tiered main valve with multiple large holes located on multiple levels. A unique exterior grip of the housing allows for easy grasping of the housing chamber. The device and system are especially suitable for use with, for example, inflating tires, especially in a military environment.

A valve stem system includes a valve stem that is fluidly coupled to a tire thereby facilitating the valve stem to selectively inflate and deflate the tire. A sensing unit is coupled to the valve stem and the sensing unit is visible on the valve stem. The sensing unit is in fluid communication with the valve stem to sense air pressure within the tire thereby facilitating the sensing unit to display the air pressure within the tire. A valve stem assembly includes a pressure sensing body and a valve core configured to threadedly engage the tire stem and regulate air flow from a tire. The pressure sensing body includes plunger that responds to pressure fluctuations in the tire and provides a continuous measurement of air pressure.

An electronic unit for measuring operating parameters of a vehicle wheel, including: an inflation valve of the snap-in type having a valve body made of an elastically deformable material, and a rigid hollow tube, an electronics casing, and a device for attaching the electronic casing and of the inflation valve. The device for attaching the electronics casing and the inflation valve consists of a solid pin made from a material having a density lower than that of the material of which the rigid hollow tube is made and having longitudinal grooves that allow a flow of air to pass through the valve, a proximal portion of the pin being configured to be attached to the electronics casing, and a distal portion of the pin being configured to be attached to the rigid hollow tube of the inflation valve.

The invention relates to a tyre valve for a pneumatic tyre of a vehicle, having a valve stem extending from the air inlet end to the air outlet end and having an outside thread on its outside circumference and a collar at its air outlet end for a rim well carrying the pneumatic tyre and a fastening thread for an air pressure sensor or other device to be fastened to the valve stem and positioned inside the pneumatic tyre, exhibiting a union nut with an inside thread for screwing onto the outside thread in order to clamp the rim base between the union nut and the collar, with the valve stem being inserted through a rim bore, with a plastic valve cap, with a deformable element located on the outside circumference of the valve stem and/or an inside circumference of the union nut. The tyre valve according to the invention is characterised in that the union nut and, if the deformation element is located on the inside circumference of the union nut, also the deformation element, exhibit a minimum inside diameter that exceeds the maximum outside diameter of the valve cap.

A mounting stem may receive an inflation valve and a tire pressure monitoring system sensor. The mounting stem may include a hollow stem including a distal end and a proximal end. The mounting stem may further include an enlarged dome formed on the proximal end and defining a dome shoulder facing distally for engaging a wheel rim. The dome may include a dome height extending proximally from the dome shoulder. The mounting stem may also include a longitudinal bore extending along a longitudinal axis from the distal end partially into the dome. A plurality of lateral bores may communicate the longitudinal bore with an outer surface of the dome, and may include lateral bore diameters at least 25% of the dome height. The lateral bores may be located closer to the proximal end than to the dome shoulder. The dome may also include a threaded TPMS mounting hole defined therein.