Editing Sup'AirBall (section)

=== Ventilated bunker systems ===

In 1998, Adrenaline Games introduced a ventilated obstacle system known as '''Fitting'''.

Unlike individually sealed airtight bunkers, the system used a continuous supply of air to maintain inflation.

The manufacturer identifies the Campaign Cup in England as an early demonstration venue for this technology.[2]

The approach was intended to address some of the practical disadvantages of heavy airtight obstacles, including their weight and the difficulty of repairing damaged bunkers.

Laurent Hamet subsequently developed a patented system of interconnected inflatable structures supplied by a blower.

The invention was described in United States Patent 6,296,580, titled ''Adaptable playing fields with ventilated structures'', issued on 2 October 2001.[4]

The patent described a modular playing field in which inflatable obstacles could be connected to a common air-supply system.

It also described the ability to create different playing-field configurations using the same components.

The patent concerned a particular ventilated field system rather than every form of inflatable paintball bunker.