FW Murphy Production Controls (FW Murphy) celebrated 80 years in 2019. The company provides a full spectrum of engine management solutions for the oil and gas and gas compression industries, with roots that trace back to the Great Depression and Frank W. “Pat” Murphy creating a simple solution for a complex problem. While Pat Murphy was a sales manager for a major equipment distributor in the 1930s, he found that his customers’ main complaint was “burned up” engines. His solution was to create the Murphy Guardian Safety Switch. Later named the Swichgage, it combined an indicating gauge with a switch that would stop the engine when low oil pressure or high coolant temperature
Oilfield workers installed those first Swichgages on a number of unattended oil field engines. These gauges become so well accepted that he and his wife, Rosalie, decided to devote 100% of their time to manufacturing the “Murphy Guardian Safety Switch.” Production began in 1939 on their kitchen table in Mt. Carmel, Illinois, USA.