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 fighting equipment. The name Pyrene was epitomised by their famous 'pump' extinguisher which was installed on public transport, commercial and private vehicles throughout the western world. 1907 A Scottish engineer unable to get backing in the United Kingdom took his idea for a fire extinguisher to the United States. He set up in New York, and eventually became known as the Pyrene Company of Delaware. 1914 The Pyrene Company Limited began in the United Kingdom, when Wallace B. Phillips, an American set up in Great Queen Street, London, selling 'pump' extinguishers. 1918-20 The company moved to Grosvenor Gardens, London in