An auger for a grinder material for a tire filling machine, having: a cylindrical column; and a plurality of flights extending outwardly from the cylindrical core, wherein (i) the flights are arranged in pairs extending radially outwards from the cylindrical column at 180 degrees to one another, and (ii) each flight has a sharpened leading edge. Each pair of flights are positioned at angles of approximately 50 or 60 degrees to one another, and each flight extends approximately half way around the circumference of the cylindrical column, and there are no outer edge notches in the flights.

In a pneumatic tire including belt layers on an outer circumferential side of a carcass layer in a tread portion and a sealant layer made of an adhesive sealant provided on an inner surface of the tread portion, a width SW of the sealant layer, a width BW1 of an inner belt layer disposed adjacent to the carcass layer of the belt layers, and an actual ground contact width CW satisfy a relationship CWSWBW1.

In a pneumatic tire including belt layers on an outer circumferential side of a carcass layer in a tread portion and a sealant layer made of an adhesive sealant provided on an inner surface of the tread portion, a width SW of the sealant layer, a width BW1 of an inner belt layer disposed adjacent to the carcass layer of the belt layers, and an actual ground contact width CW satisfy a relationship CWSWBW1.

An apparatus includes a grid circuit having dimensions corresponding to an inner surface of a tire, a computational device coupled to the grid circuit, and a wireless communications device coupled to the computational device. The wireless communications device is configured to transmit detection of damage to the grid circuit. A computer-implemented method includes monitoring a grid circuit positioned in a tire to detect damage to conductors of the grid circuit, detecting damage to at least one of the conductors of the grid circuit, and transmitting information about the damage to a computer of a vehicle. A computer-implemented method includes receiving, from a computational device coupled to a grid circuit in a tire, information about damage to the grid circuit and outputting an indication that the tire is damaged.

A sealant material composition forming a sealant layer of a pneumatic tire provided with the sealant layer on a tire inner surface is prepared by blending from 1 part by mass to 40 parts by mass of a crosslinking aid and from 50 parts by mass to 400 parts by mass of a liquid isobutylene-isoprene copolymer having a molecular weight from 10000 to 60000 per 100 parts by mass of a halogenated butyl rubber.

As the sealant material composition forming a sealant layer of a pneumatic tire provided with the sealant layer on a tire inner surface, the sealant material composition prepared by blending from 0.1 parts by mass to 20 parts by mass of a crosslinking agent, from 0.1 parts by mass to 40 parts by mass of an organic peroxide, and from 10 parts by mass to 400 parts by mass of a liquid polymer per 100 parts by mass of a butyl rubber is used.

A pneumatic tire includes a tread, side walls, beads, a carcass, a belt layer, an inner-liner layer, and a sealant layer. The inner-side surface of the inner-liner layer to which the sealant layer is adhered has profile that satisfies L1<L2<L3, L15 mm, L29.5 mm, and L311 mm, where L1, L2 and L3 represent heights in a radial direction measured from a base height point to the inner-side surface of the inner-liner layer at positions located in an axially inward direction from an axial outer edge of the belt layer by 5%, 10% and 15% of a maximum width of the belt layer, and the base height point is a point on an axial-direction line through the intersection where a radial-direction line passing through the axial outer edge of the belt layer intersects the inner-side surface of the inner-liner layer.

The present invention is directed to a method making a pneumatic tire, comprising the steps of: mixing a sealant composition comprising an elastomer, a filler, a diluent, a quinoid curing agent, an oxidant co-curative; and a cure modifier of formula 1: ##STR00001##
wherein R.sup.1 and R.sup.2 are independently H or C1 to C4 alkyl, or R.sup.1 and R.sup.2 taken together form a substituted or unsubstituted phenylene group; R.sup.3 and R.sup.4 are independently H, NH.sub.2, C1 to C4 alkyl, or OR.sup.5 where R.sup.5 is C1 to C4 alkyl, with the proviso that when R.sup.1 and R.sup.2 are taken together to form a substituted or unsubstituted phenylene group, R.sup.5 is C1 to C3 alkyl; applying the sealant composition to an inner surface of a cured tire; and curing the sealant composition.

A method of performing a diagnostic test on a vehicle having at least one tire includes providing the vehicle with at least one sensor configured to detect a vehicle operating characteristic, a receiver configured to receive AM signals, a notification system, and a controller in electronic communication with the at least one sensor, the receiver, and the notification system, receiving sensor data from the at least one sensor and AM signal data from the receiver, analyzing the sensor data and the AM signal data, determining whether a first condition is satisfied, and in response to the first condition being satisfied, generating a first control signal to control the notification system to generate a notification.

Provided is a pneumatic tire in which a sealant layer entirely exhibits 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 continuously and spirally applying a generally string-shaped sealant to the inner periphery of a tire in the tire width direction from one side to the other, the attachment start portion of the sealant being located tire-widthwise inward from the tire-widthwise end of the sealant layer.