ALEXANDRIA, Va., May 19 -- United States Patent no. 12,629,551, issued on May 19, was assigned to Tyco Fire Products LP (Cranston, R.I.).
"Combustible concealed space" was invented by Manuel R. Silva Jr. (Cranston, R.I.), Sean E. Cutting (West Warwick, R.I.) and Patrick Hoefner Crowe (Pawtucket, R.I.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Fire protection system and methods for concealed spaces providing for effective fire protection over an effective depth range measuring from a minimum six inches up to a maximum that is greater than thirty-six inches. A combustible concealed space that includes an upper deck and a ceiling deck spaced about a longitudinal axis extending substantially parallel to the ...