ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,596, issued on Nov. 25, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).
"Multi-function fluid control valve" was invented by Hugues Pellerin (Montreal).
According to the abstract* released by the U.S. Patent & Trademark Office: "An aircraft fluid control valve is provided that includes a sleeve, a cap, first and second pistons, and first and second springs. The sleeve includes first and second inner chambers. Fluid inlet and outlet ports are disposed in the first sleeve wall. A high pressure reference port is in fluid communication with the base end and a low pressure reference port is in communication adjacent the cap end. The first piston has a center post, a ...