US Patent Issued to The Reliable Automatic Sprinkler on Aug. 26 for "Flexible dry sprinkler having a differential pressure controller" (South Carolina Inventor)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,185, issued on Aug. 26, was assigned to The Reliable Automatic Sprinkler Co. Inc. (Liberty, S.C.).

"Flexible dry sprinkler having a differential pressure controller" was invented by Thomas Multer (Liberty, S.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dry fire protection sprinkler in which, when a ratio of a pressure P1 of a pressurized fluid in a flexible tube to a pressure P3 of the fluid in a fluid supply line is less than a predetermined ratio of at least 3 to 1, a differential pressure controller sends a signal to a control valve to open, in order to allow the pressurized fluid in a pressurized fluid source at a pressure of P2 to enter ...