Method and apparatus for producing foam
OwnerJohn Bureaux, Roger Sabourininventors
Life of this patent
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Abstract
Foam carrying a decontaminating/oxidizing agent is produced by introducing air under pressure into a pair of tanks (10, 11) carrying a foam forming solution and a solution of the agent. The tanks (10, 11) are connected to an air passage (2) through a manifold (1) for introducing the foam solution and then the agent solution into the air passage (2) to produce foam bubbles coated with agent for discharge under pressure through a hose (19) connected to said air passage (2). Alternatively, the two solutions are mixed in a single tank (22) connected to a source of air (23) under pressure, and the resulting mixture is discharged through a hose (37) and a foam-forming nozzle (40) at the discharge end of the hose (37).
Claims4
An apparatus for producing foam consisting essentially of:
- (a) a tank (22) for carrying foam forming solution containing a decontaminating/oxidizing agent;
- (b) a source (23) of gas under pressure connected to said tank (22) for pressurizing the tank (22) to cause the solution to flow therefrom;
- (c) a solution dispersing hose (37) having one end connected to said tank (22) for discharging solution from the tank (22), characterized in that
- (d) a foam forming nozzle (40) is provided on a second end of said dispensing hose (27) for creating and directly discharging foam from the apparatus.
A method of producing foam for explosive blast suppression consisting of the steps of:
- (a) creating a stream of gas under pressure in an inlet hose (25);
- (b) introducing said gas under pressure into a tank (22) carrying foam forming solution for pressurizing the tank (22) to cause solution to flow therefrom;
- (c) conveying solution discharged from the tank (22) through a dispensing hose (37), characterized in that
- (d) the solution from the dispensing hose (37) is discharged through a foam forming nozzle (40) to create and directly discharge foam under pressure.
Dependencies are inferred from the claim text.