A self-sealing pneumatic tire having at least one cohesive sandwich radially inward of the pneumatic tire is provided. The at least cohesive sandwich may include a cohesive material under pressure, facilitating a recovery capacity upon being pierced by a sharp object, whereby the molecules of the cohesive material cohesively reattach, self-sealing any passageway or space created by the sharp object. The self-sealing pneumatic tire may also provide a loculated-diamond-section layer located radially inward of the outer cohesive sandwich, further supporting the self-sealing pneumatic tire. The external rubber tread are disposed along the circumference of the tire in some embodiments can be separate from the surface of the tire yet secured in place by attachments. Once fully utilized, this external rubber tread can be replaced by a new version without having to replace the entire tire.

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 (5) is arranged at the second end (4) of the valve stem body (2). The first valve (5) is a self-sealing one-way valve. A second valve (10) is removably mountable at the first end (3) and is, when mounted, at least partially housed in the valve stem body (2). The second valve (10) comprises a valve stem core inserted in the valve stem body (2) and can be added or removed from the valve stem body (2) while pressure is maintained within the tire by the first valve (5). 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.

Sensor mesh suitable for use in a system for the detection of a puncture in a tyre, said sensor element having a wire structure arranged as a net comprising a first set of wires arranged according to a first direction (A) and a second set of wires arranged according to a second direction (B), in order to form meshes (M) of said net structure, wherein said wires of said first set of wires are of electrically non-conductive material and said wires of said second set of wires are of electrically conductive material, said wires of electrically conductive material being electrically connectable to each other in order to form a circuit configuration (c1, c2, c3, c4, c5), each of said meshes (M) having an inner area (A.sub.M) of between 0.25 mm.sup.2 and 100 mm.sup.2.

Pneumatic tyre (1) comprising a carcass ply (11), two ring beads (12), a tread strip (10), a tread belt (15) comprising at least two tread plies (16), an innerliner (2) and an additional functional material layer (4,5) arranged between the innerliner (2) and the inner cavity (17) of the pneumatic tyre (1), wherein between the innerliner (2) and the layer of additional functional material (4,5) a net layer (3) is interposed, which facilitates the removal thereof during disposal at the end-of-life of the pneumatic tyre.

Disclosed is an anti-puncture shield insert for a wheel. The wheel includes a rim and an inflated tire connected to the edges of the rim. The shield insert is made of a shock-absorbing material. The shield insert is placed at the widest point between the inner sidewalls of the tire. As a hit causes the tire to collapse, the shield insert absorbs the shock taken by the tire and the rim, by staying between inner parts of the tire. The shield insert is floating relative to the tire.

A pneumatic tire includes a resonator attached to the inner periphery of the tire, the resonator including a tube with an opening, and a cavity connected to the tube. The pneumatic tire further includes s a tread portion and each resonator faces the tread portion, the tread portion includes at least one circumferential longitudinal groove, and the opening is provided to penetrate a circumferential longitudinal groove of the tread portion.

Provided is a pneumatic tire having sufficient sealing performance. The present invention relates to a pneumatic tire including a sealant layer located radially inside an innerliner, the sealant layer being formed by applying a sealant to the inner periphery of a tire from which mold release agents have been removed.

A tire 1 for a motorcycle comprises a tread portion 2 provided on an inner surface 2Si thereof with a sealant layer 11 for preventing puncture. In each half of a cross-sectional view of the tire 1, when the tread portion 2 is virtually divided into a center region 2C, a middle region 2M, and a shoulder region 2S, a thickness tm of the sealant layer 11 in the middle region 2M is larger than a thickness tc of the sealant layer 11 in the center region 2C.

The present invention is directed to a pneumatic tire comprising a tread portion, two bead portions, two sidewalls extending between the tread portion and the respective bead portions, an inner surface defining a tire cavity, a sealant material layer covering the inner surface radially below the tread portion within the tire cavity, and at least one noise dampening strip which is partially covering and attached to the sealant material on a radially inner side and along a circumferential direction of the sealant material layer. The sealant material layer has at least one plateau region supporting the noise dampening element and one or more bottom regions provided laterally beside the plateau region, and wherein the plateau region extends out of the bottom regions in a radially inner direction.

A sealing device comprising a flexible holding strip having an adhesive layer on a first surface, wherein the strip is configured for attachment to an inner surface of a tubeless tire via the adhesive layer, and a plurality of flexible flags attached to a second surface of the flexible holding strip opposite the first surface, wherein the plurality of flags is attached to the second surface at a fixed widthwise edge of each of the plurality of flags and wherein the plurality of flags are configured to seal a hole in the tubeless tire when the strip is attached to the inner surface of the tubeless tire is provided. Methods of protecting tires by attaching a sealing device are also described.