ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,406, issued on Feb. 17, was assigned to STONERIDGE CONTROL DEVICES INC. (Novi, Mich.).
"Evaporative emissions system vapor blocking valve leak diagnostic with a single pressure sensor" was invented by Mark William Peters (Wolverine Lake, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method is disclosed of testing operability of a vapor blocking valve (VBV) in a first passageway that is fluidly arranged between a fuel tank and a carbon canister. A canister valve solenoid (CVS) is arranged in a second fluid passageway that fluidly interconnects the carbon canister and an atmospheric port. The method includes obtaining a first desired pressure...