A tire pressure sensor is provided. The tire pressure sensor comprises a sensor housing having a first engagement portion defining an opening. A pressure sensing element is within the sensor housing and is in fluid communication with the opening of the sensor housing. The tire pressure sensor is configured to engage and be in fluid communication with an over-inflation pressure relief valve. The over-inflation relief valve is engagable in a wheel of an aircraft wheel assembly. The tire pressure sensor is also disengageable from the over-inflation pressure relief valve. A tire pressure sensor assembly and an aircraft wheel system are also provided.

An air chuck with variable angle swivel head, having a head, a handle having a front face having a manufactured angle, and a swivel mechanism, which includes a banjo bolt, an air chuck tip and a pin, which together provide an air passage, whereby the head is connected to the handle by the swivel mechanism, and the manufactured angle of the front face of the handle lies in the range of 15 degrees to 45 degrees.

An air chuck with variable angle swivel head, having a head, a handle having a front face having a manufactured angle, and a swivel mechanism, which includes a banjo bolt, an air chuck tip and a pin, which together provide an air passage, whereby the head is connected to the handle by the swivel mechanism, and the manufactured angle of the front face of the handle lies in the range of 15 degrees to 45 degrees.

A tool attachable to a valve stem of a tire grips and removes the valve core from the valve stem prior to introduction of sealant through the tool into the tire. Subsequently, the valve core, which has been stored in the tool, may be reinserted into the valve stem. An external pressurized gas source may then be attached to the tool so that gas may be injected through the tool and the valve stem of the tire into the tire.

A valve cap and core tool has an elongate shaft terminated by a valve core head at one end and a valve cap head at a second end. The valve cap head has an elastomeric sleeve that is sufficiently elastic to slightly stretch about and securely engage a valve cap. The valve core head has an elastomeric sleeve, and coaxial with and interior of the sleeve is a rigid tube that terminates distal to the shaft at a bifurcated end. The rigid tube bifurcated end is designed to drop around and engage with a valve core, and with continued rotation unthread the valve core. Within the core of the rigid tube, and preferably securely engaged therewith, is an elastomeric tube. The elastomeric tube is of appropriate diameter and sufficiently elastic to securely grab and retain the valve core.

The invention is directed to a valve stem system (1) for tubeless wheels. The valve stem system (1) includes a valve stem body (2) with a first end (3) and a second end (4), wherein the second end (4) is located in a tire/rim-volume when mounted at the wheel. A first valve element (5) is arranged at the second end (4) of the valve stem body (2). The first valve element (5) is a self-sealing one-way valve. The invention further concerns a probe (30) for a valve stem system, a method to test the amount of sealant in a wheel and a refilling assembly (80) for a wheel.

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.

An air maintenance tire assembly includes a tire having a tire cavity bounded by first and second sidewalls extending to a tire tread region, air pumping means for generating pressurized air for maintaining air pressure within the tire cavity at a preset pressure level, the tire having an elongate valve stem projecting outward from the tire cavity and having an internal valve stem air passageway in communication with the tire cavity and operative to direct pressurized air into the cavity, and a valve housing disposed adjacent an outward end of the valve stem and operative to selectively open and close pressurized air flow from the valve stem internal passageway into the tire cavity.

Methods and systems are contemplated in which elastomer materials can be processed into flatproofing materials which may be used to produce flatproofed tires. A elastomer material can be extruded through an extrusion die to produce two or more elastomer chunks. These elastomer chunks can be ground into a granulated material, which may comprise a flatproofing material to be used to fill a tire. Air in the tire may escape through a hole in the tire, and this air can be guided through a vent wherein an air flow meter can measure the air's flow rate. If the measured air flow rate drops below a threshold value, the process of filling the tire with the flatproofing material can be ceased. The tire can be investigated, after which the tire may be further filled with the flatproofing material before sealing the hole in the tire to produce the flatproofed tire.