US 9,744,388 B2 · Compressed air foam system with simplified user interface

Abstract

A one-touch Compressed Air Foam System (CAFS) is provided that allows for a simplified user interface and simplified user operation. The user interface allows the CAFS to activate upon a single press of a single button. An electronic controller checks that several CAFS device parameters show that the CAFS is capable of operating. The controller gathers the device parameter data from a diagnostic system present in the CAFS that gives data pertaining to whether water is flowing, whether foam concentrate is present in the system, whether foam is flowing, and whether the temperature of an air compressor is within a safe range for operation. If the above device parameters are found to be in condition for safe operation of the CAFS, the controller will start and maintain operation until either one of the above falls out of tolerance or the user initiates a shut down of the CAFS.

Claims12

Dependent claims

A Compressed Air Foam System (CAFS), comprising:

a water tank;
a water pump fluidly connected to the water tank;
a foam concentrate chamber;
a first mix chamber fluidly connected to the foam concentrate chamber and fluidly connected to the water pump;
wherein the water pump injects water from the water tank into the first mix chamber to create a foam;
a second mix chamber;
wherein the first mix chamber is fluidly connected to the second mix chamber;
an air compressor fluidly connected to the second mix chamber;
wherein the foam from the first mix chamber is injected into the second mix chamber and mixed with compressed air from the air compressor;
a discharge valve fluidly connected to the second mix chamber and configured to discharge a foam and compressed air solution;
a diagnostic system that takes device parameters from the CAFS;
and
a controller that operates the CAFS based on the device parameters from the diagnostic system.

10 more elements

A Compressed Air Foam System (CAFS), comprising:

a water tank;
a water pump fluidly connected to the water tank;
a foam concentrate chamber;
a first mix chamber fluidly connected to the foam concentrate chamber and fluidly connected to the water pump;
wherein the water pump injects water from the water tank into the first mix chamber to create a foam;
a second mix chamber;
wherein the first mix chamber is fluidly connected to the second mix chamber;
an air compressor fluidly connected to the second mix chamber;
wherein the foam from the first mix chamber is injected into the second mix chamber and mixed with compressed air from the air compressor;
a discharge valve fluidly connected to the second mix chamber and configured to discharge a foam and compressed air solution;
a diagnostic system that takes device parameters from the CAFS;
and
a controller that operates the CAFS based on the device parameters from the diagnostic system;
wherein the diagnostic system comprises:
a first flow meter fluidly disposed between the water pump and the first mix chamber;
a second flow meter fluidly disposed between the first mix chamber and the second mix chamber;
a foam concentrate monitoring device configured to monitor whether a foam concentrate is present in the foam concentrate chamber;
and
a temperature sensor configured to monitor the temperature of the air compressor.

16 more elements

Dependencies are inferred from the claim text.

Compressed air foam system with simplified user interface

Life of this patent

Compressed air foam system with simplified user interface

Life of this patent

Abstract

Claims12