Method and apparatus for the application of a highly viscous fluid

A system for applying a highly viscous fluid to an inner surface of a cavity of a tire, the system comprising:

• an applicator device configured for controlled movement relative to the inner surface of the cavity of the tire;
• a first sealing agent collection device comprising a tank defined by a first casing comprising first highly viscous fluid in a first variable volume collection chamber;
• a first pumping device configured to deliver a first highly viscous fluid to the applicator device;
• a first movable piston that delimits the first variable volume collection chamber at a perimeter thereof;
• a first extractor element configured to move with an alternating movement to draw the first highly viscous fluid inside the first variable volume collection chamber and deliver the first highly viscous fluid to the first pumping device;
• a first position sensor configured to detect a position of the first movable piston;
• a second sealing agent collection device comprising a second tank defined by a second casing comprising a second highly viscous fluid in a second variable volume collection chamber;
• a second pumping device configured to deliver the second highly viscous fluid to the applicator device;
• a second movable piston that delimits the second variable volume collection chamber at a perimeter thereof;
• a second extractor element configured to move with an alternating movement to draw the second highly viscous fluid inside the second variable volume collection chamber and deliver the first highly viscous fluid to the second pumping device;
• and
• a second position sensor configured to detect a position of the second movable piston.