The Grinnell Company was founded in 1850 in Providence, Rhode Island. Its industry is mechanical products and its headquarters is in Lansdale, Pennsylvania. It is now known as Grinnel Mechanical Products and is a brand of Tyco International.
Providence Steam and Gas Pipe Company (1850-1892)
General Fire Extinguisher Company (1892-1944)
Grinnell Corporation (1944-)
Thermoflex Radiator Trap
Automatic Sprinkler System