ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,040, issued on June 10, was assigned to Commercialisation Express Pty Ltd (Salisbury Heights, South Africa).
"Blockout blind system" was invented by John Riemelmoser (Salisbury Heights, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A blockout blind system includes side tracks fitted with brushes in conjunction with a pelmet fitted with flaps ensure no light can pass around the blind. The flaps and brushes have offset apertures either side of the blind to allow for airflow thus preventing the blind being sucked out or pushed in by open or leaking windows and air conditioning systems. The system also conceals the chain for operating the bli...