NATIONAL

APPARATUS FOR PRODUCING FIRE-EXTINGUISHING FOAM-NAMELY, PORTABLE FIRE EXTINGUISHERS; GENERATORS FOR PRODUCING CHEMICAL FOAM; CHEMICAL FOAM DELIVERY CHAMBERS, DISCHARGE TUBES AND DELUGE SETS; MECHANICAL FOAM MAKERS, DELIVERY CHAMBERS, SUCTION PICK-UP TUBES, PRESSURE PROPORTIONERS, SUCTION PROPORTIONERS, DISCHARGE TUBES AND DEFLECTORS; AND PORTABLE TOWERS FOR USE IN DIRECTING CHEMICAL AND MECHANICAL FIRE-EXTINGUISHING FOAM