Improvements to tire repair apparatus

A method of sealing a puncture in a pneumatic tire including the steps of:

• (a) providing a tire repair apparatus comprising a sealant container containing a sealant formulation, the sealant container having an outlet hose extending therefrom and the outlet hose provided with an outlet coupling, wherein the outlet coupling comprises;
• i. a connector having an open first end, to engage with a tire valve stem, and an open second end continuous with a channel;
• ii. a pin at least partially located within the channel, the pin comprising a body having a head and an engaging portion at substantially opposite ends thereof, the head in contact with a biasing member and the engaging portion engaged with a sealing element;
• iii. wherein, the pin is movable between an open position wherein the sealing element is spaced from an end of the channel and a closed position wherein the sealing element seals the end of the channel;
• (b) connecting the open first end of the connector to a valve stem of the pneumatic tire such that the pin engages with a valve core spigot of the valve stem to force the pin into the open position;
• and
• (c) providing a fluid pressure within the container;
• to thereby discharge the sealant formulation from the sealant container into an internal chamber of the pneumatic tire and seal the puncture.

A pressure release system for a sealant container comprising:

• (a) a sealant container comprising a base having an aperture formed therethrough;
• and
• (b) a pressure release device comprising a sealing face having a sealing spigot extending therefrom;
• wherein, the sealing spigot of the pressure release device is located within the aperture.

A method of sealing a puncture in a pneumatic tire including the steps of:

• (a) providing a tire repair apparatus comprising a sealant container containing a sealant formulation, the sealant container comprising;
• i. an outlet hose extending therefrom;
• ii. a base having an aperture formed therethrough;
• iii. a pressure release device located within the sealant container and comprising a sealing face having a sealing spigot extending therefrom, the sealing spigot located within the aperture;
• (b) connecting the outlet hose to a valve stem of the pneumatic tire;
• and
• (c) providing a fluid pressure within the sealant container;
• to thereby discharge the sealant formulation from the sealant container into an internal chamber of the pneumatic tire and seal the puncture.