ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,574, issued on March 31.
"Powder supply pump" was invented by Irene Faccio (Dueville, Italy) and Penelope Faccio (Colceresa, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pump, supplying powder for a variety of uses, has an outer body with an internal cavity; a compartment in the body has a volume which is variable on command by means of a motor drive, from a first condition, in which it fills with powder through openings that are in communication with a container that contains the powder to be dispensed, to a second condition, in which it is in contact with the initial part of a dispensing duct; a valve intercepts the duct and a first con...