ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,395, issued on Nov. 11, was assigned to Perkins Engines Co. Ltd. (Peterborough, Great Britain).
"Onboard device and method for checking diesel exhaust fluid quality" was invented by Daniel Fitch (Enfield, Great Britain), Mark Philip Aldred (Market Deeping, Great Britain) and Ivan Rogers (Peterborough, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention pertains an onboard device for checking the quality of DEF in a work machine, comprising a flow channel configured to fluidly connect a DEF inlet with a DEF tank. The flow channel comprises a DQS configured to be brought into contact with DEF passing through the flow cha...