Single control for gas actuated fire extinguishers

An apparatus comprising:

• (a) a plurality of gas cartridges, each of said gas cartridges containing a pressure influenced gas and a puncturable diaphragm to permit release of said gas;
• (b) a plurality of extinguishing tanks;
• (c) a plurality of cylinder-pistons, each of said cylinder-pistons slidably containing a piston having a piston head located in a first chamber of said cylinder-piston and a piston rod fixably mounted to said piston head and extending into a second chamber of said cylinder-piston, each of said cylinder-pistons being fixably mounted to an associated gas cartridge such that slidable movement of said piston can cause said piston rod to puncture said diaphragm of said associated gas cartridge;
• (d) first means for actuating said piston of one of said cylinder-pistons to puncture said diaphragm of said associated gas cartridge;
• (e) second means to conduct a portion of said released gas from said associated gas cartridge to at least one of said extinguishing tanks, said second means to also connect said cylinder-pistons such that a portion of the gas released by said one of said cylinder-pistons is conducted to another of said cylinder-pistons to be received in a manner to move the piston to rupture its diaphragm to cause its associated gas cartridge to release gas to another extinguishing tank.