One or more embodiments of the present invention provide a tire and method of forming a continuous encapsulated strip of sealant layer inside the tire. The strip of sealant layer has a varied mixture ratio of the sealant compound to the skin compound.

Provided is a flat tire repair liquid container including: a container main body including a container body in which a flat tire repair liquid is stored, and an opening; and a cap including a flow path configured to guide the flat tire repair liquid out of the container. The flow path includes a cylinder portion of which an end of a first side is open toward internal space of the container body and in which a closing plug is slidably inserted, and a dispensing portion branching from the cylinder portion and open to outside the container. The closing plug is configured to close the flow path by being positioned at the end of the first side of the cylinder portion, and to open the flow path by being subjected to pressure inside the container during flat tire repair work and moving to a second side.

A motor vehicle with a compressor assembly for the supply of a pressure medium to a tire cavity of a tire of a motor vehicle. The compressor assembly has a compression chamber which is rotationally fixed in relation to the motor vehicle wheel, and the compression chamber and the tire cavity are connected via a fluidic connection for the conveying of a pressure medium from the compression chamber into the tire cavity. A tire sealing device has a sealant reservoir with a first connection fluidically connected to a tire cavity of a tire of the motor vehicle to be repaired, and a second connection fluidically connected to a pressure medium source secured to the motor vehicle. The sealant is conveyed out of the pressure medium source into the tire cavity of the tire to be repaired by means of the pressure medium.

To control compressed air to a prescribed pressure without using a relief valve and a chamber and to suppress deviation of the pressure. A compressor device 2 of a puncture repair kit 1 has a pressure gauge 6. The pressure gauge 6 has a tubular body portion 18 provided in a front end portion with a communicating hole 21 communicating with a surge chamber 12B, a piston 19 movable within the tubular body portion 18 in the longitudinal direction by the compressed air from the communicating hole 21, and a spring 20 biasing the piston 19 toward the front end and changing its displacement according to the magnitude of the pressure of the compressed air. An exhaust port 25 is formed on the peripheral wall of the tubular body portion 18. The exhaust port 25 releases the compressed air when a seal ring 23 of the piston 19 exceeds the exhaust port 25.

This invention discloses a technique for replenishing the level of sealant in self-sealing tires at the time that a puncture in the tire is being repaired or when the tire is being recapped. This technique provides the tire with its original level of self-sealing capabilities and will enhance the possibility of the tire remaining in service until it can be conveniently repaired. This method involves (1) injecting a liquid sealant formulation into the sealant layer of a self-sealing tire through at least one puncture hole therein, and (2) sealing the hole or holes in the supporting carcass and the innerliner of the tire. The sealant utilized is typically liquid polyisobutylene having a weight average molecular weight of 25,000 to 200,000. The sealant formulation used can optionally also contain a colorant or a pigment.

A self-healing pneumatic tire, which uses the sealant stored in the tire to fix a leak, is disclosed.

The present invention is directed to a method of making a self-sealing pneumatic tire, the tire having a tread width and a radially innermost surface having a residue deposited thereon, comprising the steps of: activating a laser to generate laser radiation; directing a pulse of laser radiation to impinge on an area of the innermost surface, the pulse of radiation having a pulse width and a fluence sufficient to remove at least part of the residue in the area to form a cleaned area; repeating the step of directing the pulse of radiation sequentially over the innermost surface to form a sequence of cleaned areas, the sequence of cleaned areas defining a stripe, the stripe following a continuous nonlinear path extending at least one circumference about the inner surface, the stripe having a stripe width W2; applying a bead of sealant in a continuous bead path extending at least one circumference about the inner surface, the bead of sealant at least partially overlaying the stripe. The invention is further directed to as such a self-sealing pneumatic tire.

The present invention is directed to a method of making a self-sealing pneumatic tire, the tire having a tread width and a radially innermost surface having a residue deposited thereon, comprising the steps of: activating a laser to generate laser radiation; directing a pulse of laser radiation to impinge on an area of the innermost surface, the pulse of radiation having a pulse width and a fluence sufficient to remove at least part of the residue in the area to form a cleaned area; repeating the step of directing the pulse of radiation sequentially over the innermost surface to form a sequence of cleaned areas, the sequence of cleaned areas defining a stripe, the stripe following a continuous nonlinear path extending at least one circumference about the inner surface, the stripe having a stripe width W2; applying a bead of sealant in a continuous bead path extending at least one circumference about the inner surface, the bead of sealant at least partially overlaying the stripe. The invention is further directed to as such a self-sealing pneumatic tire.

A device for inflating and sealing an inflatable object comprising an air-tight tube, at least one hermetic connector reversibly coupled to either end or both ends of said air-tight tube and a source of pressure connected to either one end, second end or said at least one hermetic connector. The airtight tube serves as both storage means and transfer means for a sealing agent. The device allows transfer of said sealant agent in a largely laminar flow, aiding solid and semi-solid materials in said sealant agent to align in the direction of said flow and pass securely throw the valve mechanism without clogging. The inflatable object may be inflated and sealed without removal of the valve mechanism of said inflatable object and may be charged with pressurized gas and sealant agent contemporaneously.

A method and system for applying a sealing agent to a surface (2) of an inner cavity (3) of a pneumatic tyre; the method provides for detecting the weight of the pneumatic tyre (4) before and after the application of the sealing agent to the surface (2); calculating the difference between the quantity of sealing agent applied to the surface (2) and a reference quantity of sealing agent, storing said difference within a short-term memory buffer (24) and a long-term memory buffer (26); determining a short-term compensation factor (K.sub.ST) and a long-term compensation factor (K.sub.LT) and calculating a correction factor (K.sub.EA) using alternately the short-term compensation factor (K.sub.ST) or else the long-term compensation factor (K.sub.LT); and using said correction factor (K.sub.EA) to actuate an applicator device (7) during the subsequent step of applying the strip of sealing agent to the surface (2).