Fire extinguisher in the early 60s and Purple-K being developed by the US Navy in the late 1960s. Manually applied dry agents such as graphite for class D (metal) fires had existed since WWII, but it wasn't until 1949 that Ansul introduced a pressurized extinguisher using an external CO2 cartridge to discharge the agent. Met-L-X (sodium chloride) was the first extinguisher developed in the US, with graphite, copper, and several other types being developed later. In the 1970s, Halon 1211 came over to the United States from Europe where it had been used since the late 40s or early 50s. Halon 1301
Chubb Fire The combined expertise of Pyrene, Minimax and Read and Campbell have contributed to today's production techniques and have simplified designs resulting in the modern extinguisher which is lighter in weight, easier to handle and of greater efficiency than before. Seize & Squeeze 1975 In 1975, Chubb Fire launched their new range of extinguishers under the banner 'Seize and Squeeze'! These extinguishers, fitted with a new style of head, enabled them to be operated by simply withdrawing a pin and squeezing a lever, no matter which type of extinguisher in the Chubb range was being used. Previously, different operating methods were