US Patent Issued to Griswold Controls on May 12 for "Flow control valve with rolling diaphragm" (California Inventor)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,772, issued on May 12, was assigned to Griswold Controls LLC (Irvine, Calif.).

"Flow control valve with rolling diaphragm" was invented by Stefan I. Tuineag (Irvine, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A flow control valve including a main valve and a pilot valve for controlling a piston of the main valve. The valve maybe controlled through a control system based upon measured pressures or temperatures in a system supplied or controlled by the valve. The valve may be operated as a pressure independent control valve, using pressure measurement from a supply line and exit line or return line of a hydronic HVAC system as inputs to the ...