ALEXANDRIA, Va., March 17 -- United States Patent no. RE50,825, issued on March 17, was assigned to Tyco Fire Products LP (Cranston, R.I.).
"Concealed sprinkler" was invented by Bernhard Abels (Warwick, R.I.), Manuel R. Silva Jr. (Cranston, R.I.) and Marcelo J. Chavez (Providence, R.I.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A concealed sprinkler including a body having a proximal portion and a distal portion. The distal portion includes an annular wall defining a chamber and an opening in communication with the chamber. A deflector assembly is disposed within the chamber. A trigger assembly having a lever assembly engaged with an inner surface of the annular wall supports the deflector assembly in th...