A valve assembly including a base portion and a cap portion attached to the base portion. The valve assembly also includes a biasing member disposed between the base portion and the cap portion. The biasing member is adjacent a perforation formed in the cap portion. A shuttle assembly is in contact with the biasing member. The shuttle assembly includes a shuttle and a plug member. The plug member is attached to the shuttle.

A valve assembly for controlling inflation and deflation is provided. The valve assembly includes a rapid-inflate valve having an annular body configured to couple to a valve stem port of a wheel and selectively permit gas flow into a tire. The valve has a sealing surface in a chamber with a slidable sealing member biased toward the sealing surface. In a closed position, the sealing member can be positioned in contact with the sealing surface to prohibit gas flow through the valve, and in an open position, the sealing member can be positioned away from the sealing surface to permit gas flow through the valve. Wheel can include dual valve stem ports. In this configuration, the first port has the rapid-inflate valve assembly and the second port can have a rapid-deflate valve stem, a rapid-deflate valve stem cap, a rapid-deflate to pressure set valve stem, or a standard valve stem.

An air maintenance tire assembly having an elongate air pumping sidewall air passageway includes an inlet air passage screw assembly inserted through a tire sidewall profiled bore to conduct air from outside the tire into a regulator positioned within a tire cavity. The screw assembly includes a screw body having at an outer end a large-diameter filter housing, a smaller-diameter midsection shank portion, and an inner large-diameter valve housing connecting to the regulator within the tire cavity. A valve mechanism seats within the valve housing and moves between an open position conducting air from the screw body into the regulator assembly and a closed position preventing a backflow of air from the regulator assembly.

An air maintenance tire assembly includes an air pumping passageway located within a tire sidewall to generate compressed air. An outlet screw assembly includes an elongate screw body residing within a profiled sidewall bore. The screw body extends through an axial span of the first sidewall to the tire cavity to conduct air from the sidewall air passageway to the tire cavity. The screw body has enlarged sectional end components to deter radial dislodging of the screw body from the sidewall bore during operation.

A pump head for a valve and a system having a pump head and a valve are provided. The pump head includes a body having a cavity sized to receive the body, the cavity having at least one engagement member at least partially disposed within the cavity, the at least one engagement member being positioned to align with a circumferential slot when a valve body is disposed in the cavity. The pump head further includes a second projection disposed adjacent an end of the cavity, the second projection being positioned to engage a projection on a valve seal member when the body is disposed in the cavity.

An air chuck for use with tire stems (or other air vessels) that use Schrader valves. In some embodiments, the air chuck has an outer threaded part that is rotated to urge a core with an O-ring to form a seal with the inner surface of the tire stem, preventing air leaks. The air chuck attaches via a single multi-turn rotary motion, which first creates the seal and then depresses the Schrader valve to allow air flow. This design offers improved air-pressure accuracy, simplicity, efficiency, ease of use, and reliability. Some embodiments further include a manually operable air valve and an air-pressure gauge operatively coupled to the air chuck.

Instantaneous Tire Traction Modulating Valves [ITTMV] is a wheels internal and external highly time-sensitive application specific fail-safe electro-pneumatic valve design, valve's current-profile and regulator technique that proactively sense and instantaneously modulate the tire pressure between tire's upper and lower cut-off pressure valves from present/recommended values particularly during imminent/inevitable critical driving situations to mitigating-aquaplaning/hydroplaning, loss of stability/control, over/under steering, loss-of-traction, minimise-emergency/high speed braking distance, roll-over and loss of control due to puncture; by real-time sensing, perform context-aware computing and directing Tyre Pressure Modulating Units [TPMU] to actively modulate the tyre pressure in right time with right pressure on right tyres thereby instantly optimizing footprint/sidewall deformation rate to enhance tire traction simultaneously sustaining stability/steer-ability and restore/optimize to pre-set tyre pressure value immediately after overcoming critical situation for further safe and comfortable driving. Wheel hub housing integrated with rotary-link comprising electrically-insulated conductive-fluidic containers to transfer ITTMV's operational power and control-signal/data to wheels.

A valve stem for controlling inflation and deflation is provided. The valve stem includes a valve body having a central passage and a lateral port venting to the atmosphere. A valve core can be positioned within the central passage and configured to permit gas flow into the central passage. A collar is configured to surround an intermediate portion of the valve body, with the collar movable between a first position, where the collar occludes the lateral port to prohibit gas flow out of the lateral port, and a second position, where the collar opens the lateral port to permit gas flow from the central passage through the lateral port. A pressure set assembly can couple to the valve body and be set to a pressure at which the pressure set assembly closes to prohibit gas flow through the pressure set assembly and through the lateral port.

A valve stem system for a tubeless tire setup for a wheel including a rim and a tire. The valve stem system includes a valve stem body having at a first end an outer valve stem configured to receive a valve core, and at a second end an inner valve body extending in an air reservoir defined between the rim and the tire. A first valve allows air passage between the valve core and the air reservoir. A second valve at the inner valve body allows sealant passage from the outer valve stem into the air reservoir. A filter disposed between the first valve and the air reservoir filters sealant from the air reservoir to enter the first valve. The first valve is a movable non-return valve body disposed in the valve stem body and configured for longitudinal displacement.

The present invention relates to a tire valve and a valve pin thereof. The valve pin includes a body portion, a head portion and a valve seal. The body portion includes a tubular wall, the tubular wall includes a first end and a second end, the tubular wall defines an axial hole and including at least one radial hole in communication with the axial hole, and the axial hole has an opening at the first end of the tubular wall. The head portion is fixedly and integrally connected axially to the second end of the tubular wall, and includes a groove on an outer surface thereof. The valve seal is received within the groove and protrudes radially outward beyond the groove, and is configured for sealingly contacting an inner surface of the tire valve.