ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,794, issued on Sept. 9.
"Compressed natural gas vehicle safety system and method" was invented by Daniel McNicholas (Palos Park, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multiply-redundant system that prevents a driver from starting and/or moving a vehicle if a compressed natural gas fill system is not correctly and completely disconnected from the vehicle. One or more sensors in combination with one or more optional microswitches combine to lock-out the vehicle's ignition or otherwise prevent it from starting and/or moving. For different levels of safety, different combinations of sensors can be used with the lowest level having a sin...