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Company type | Public |
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NYSE: MSA S&P 400 Component | |
Industry | Safety equipment |
Founded | 1914 |
Headquarters | Cranberry Township, Pennsylvania |
Key people | Steve Blanco, CEO |
Products | SCBA Gas detector Hard hat Safety harness Respirator Thermal imaging camera |
Revenue | ![]() |
Number of employees | 5,000 |
Website | www |
Mine Safety Appliances, orMSA Safety Incorporated, is an American manufacturer and supplier of safety equipment designed for use in a variety of hazardous conditions in industries such as construction, the military, fire service, and chemical, oil, and gas production.[1][2] MSA is based in thePittsburgh suburb ofCranberry.[3]
Best known for itsBakeliteSkullgardhard hat, the company’s product line includes gas monitoring and detection instruments, filter-type respirators, gas masks, breathing apparatus used by firefighters, thermal imaging cameras, firefighter helmets, ballistic body armor, military communications systems, a broad range of industrial head and fall protection products, and safety products for Do-It-Yourself consumers.[1][2]
MSA was founded in 1914[3] after development of theEdison Safety Mining Lamp by mining engineer John T. Ryan Sr. and George H. Deike with help fromThomas Edison following a terrible mine explosion in West Virginia in 1912.[4] The mining lamp was a battery-powered headlamp for miners to help preventmethane-related explosions caused by open flame lamps. Since the turn of the 21st Century, MSA has seen record sales. Only a small portion of the company's current products involve mining related products. The company’s competitors includeIndustrial Scientific Corporation,RAE Systems andDräger.[5]
The corporation's assets are managed through two business segments: MSA North America and MSA International. MSA has sales and manufacturing operations throughout the world and sells products to customers in more than 140 countries. While the majority of MSA's products are available only through distributors, the company does sell head, eye, ear, respiratory and body protection products to individuals through a variety of hardware and home center retail outlets.
Mine Safety Appliances Co. has been manufacturingoxygen breathing apparatus for decades.[6]
Their "Chemox" chemicalrebreather, primarily designed for use in mines, has been modified for use onMount Everest in 1952 and 1986. They are stated to be simple in construction and operation. It is essentially a canister ofpotassium superoxide connected to one-way flow valves to an air bag and thence to the user, as in Rebreathers whose absorbent releases oxygen hereinabove. There are no controls or operable valves of any kind. Breathing rate controls oxygen production. The main disadvantage is the 4-lbs canisters are good for only about 45-minutes of rapid climbing before another canister must be switched in. The canisters supply about 6 hours of sleeping oxygen.
MSA also produces protectivehard hats. The first generation, known as the"Skullguard", was made of reinforcedBakelite. Introduced in the 1930s it is still manufactured today.
MSA went on to produce a lighter and more streamlined helmet known as the "Topgard" in the 1960s. MSA brand firefighting helmets were notably used by theLos Angeles County Fire Department and were seen regularly on 1970s TV shows.
MSA continues to manufacture firefighting protective helmets and in 2000 acquired competitor, Cairns Helmets. Cairns firefighting helmets are now produced under the MSA Cairns label.
Of all his inventions, this was the one that did the most for humanity, Edison would later say in life.