Patent ID: 11931608
Assignee: UNITED SERVICES AUTOMOBILE ASSOCIATION (USAA)
Field: Environmental technology (Chemistry)
Classification: CPC A | IPC A

Claim 13:
14. A method for suppressing a fire outside of a structure, the method comprising:
storing a foam chemical in a foam chemical storage;
mixing in a foam solution storage container the foam chemical with water from a water supply that is in fluid communication with the foam solution storage container to form a first foam solution;
transferring the first foam solution from the foam solution storage container to a system control module;
mixing the first foam solution with first compressed air in the system control module to form a second foam solution;
transferring the second foam solution from the system control module to an expansion chamber;
mixing the second foam solution with second compressed air in the expansion chamber to form a flame retardant foam;
supplying the flame retardant foam from the expansion chamber to a plenum; and
distributing the flame retardant foam onto an outer surface of the structure through the plenum.