ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,836, issued on Oct. 21.
"Device for rolling and unrolling roll-up blinds and similar" was invented by Marc Queralt Monso (Barcelona, Spain), Alberto Alemany Monso (Barcelona, Spain) and Alberto Alemany Barros (Barcelona, Spain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for winding and unwinding Alicantina shutters (12) and the like, which are raised by being wound onto themselves by means of at least a first cord (3) connected to a first elastic element (10) which is attached at one end to the head (1) of the shutter and at the other end to the end of the cord (3) which allows the unwound segment of the shutter (12) to be kept in a stre...