Patent ID: 8056831
Filing Date: 2011-11-15
Classification: A62C

Abstract:
1. A distributor for distributing foam for extinguishing a fire, the distributor comprising: a distributor body having an inlet for receiving a flow of foam from a compressed foam supply along a direction of flow of the compressed foam through the body; a rotor mechanism having a plurality of radial impingement surfaces each of which having a surface area in the flow of the inlet during a respective part of rotation, against which foam impinges to cause the rotor mechanism to rotate, the sum of the surface areas of the radial impingement surfaces in the flow of the inlet being smaller than a smallest cross-sectional area of the flow of foam between the compressed foam supply and the radial impingement surfaces, the rotor mechanism having an input shaft operatively connected to an output shaft via a gear train; and a rotary outlet for projecting the foam in a circular sweeping pattern, the rotary outlet connected to the output shaft for rotation of the outlet relative to the body when foam impinges on the impingement surfaces of the rotor mechanism.