US Patent Issued to Silgan Dispensing Systems Le Treport on Oct. 7 for "Piston for a reservoir of a dispenser of a fluid product without air intake" (French Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,902, issued on Oct. 7, was assigned to Silgan Dispensing Systems Le Treport S.A.S. (Le Treport, France).

"Piston for a reservoir of a dispenser of a fluid product without air intake" was invented by Eric Rossignol (Chalon sur Saone, France), Emir Ezzina (Montigny-le-Bretonneux, France) and Etienne Briere (Paris).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piston for a reservoir of a dispenser of a fluid product without air intake, and presenting a central axis X includes both sealing means and also guiding means. The sealing means extend in a plane orthogonal to the axis X and define a single external sealing line in a closed loop, distal from th...