ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,733, issued on Nov. 3, was assigned to Peroni Pompe S.p.A. (Corsico, Italy).

"Seal for reciprocating pump" was invented by Luigi Mario Mascherpa (Corsico, Italy) and Maurizio Spagno (Corsico, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "A seal (1) for a reciprocating pump (2) that can be applied to a rod (3) of a piston (4) comprises a casing (5) with a first opening (6), a second opening (8) and a main cavity (9) between the first (6) and the second opening (8). The casing (5) also has a plurality of annular housings (10) distributed along the main development axis (X-X), external and concentric with respect to the main cavity (9). The seal ...